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Thermostatic Expansion ValveType TRE10, TRE 20, TRE 40, TRE 80
Technical leafletREFRIGERATION & AIR CONDITIONING
MAKING MODERN LIVING POSSIBLE
2 DKRCC.PD.AL0.A2.22 / 520H1748 © Danfoss A/S (AC-DSL / SKT), 10 - 2006
Technical leaflet Thermostatic expansion valve, Type TRE10, TRE20, TRE40, and TRE80
Introduction .....................................................................................................................................................................................3
Features ..............................................................................................................................................................................................3
Standard program ..........................................................................................................................................................................3
Valve options....................................................................................................................................................................................4
Technical data ..................................................................................................................................................................................4
MOP Function ..................................................................................................................................................................................4
Identification ....................................................................................................................................................................................5
Design/Function .............................................................................................................................................................................5
Sizing...................................................................................................................................................................................................6
Ordering.............................................................................................................................................................................................6
Standard program .................................................................................................................................................................. 7, 8
Accessories ....................................................................................................................................................................................8
Capacity:
R 22 ............................................................................................................................................................................................9, 10
R 410A ................................................................................................................................................................................... 11, 12
R 407C.................................................................................................................................................................................... 13, 14
R 134a .................................................................................................................................................................................... 15, 16
R 404A ................................................................................................................................................................................... 17, 18
R 507 ...................................................................................................................................................................................... 19, 20
Dimensions and weight ............................................................................................................................................................ 21
Contents Page
© Danfoss A/S ( AC-DSL / SKT), 10 - 2006 DKRCC.PD.AL0.A2.22 / 520H1748 3
Technical leaflet Thermostatic expansion valve, Type TRE10, TRE20, TRE40, and TRE80
Introduction TRE thermostatic expansion valves have been designed and developed for soldering into air-conditioning and refrigeration systems. Their hermetic tight design meets environmental demands for today and the future. They can be used in systems ranging in capacity from 8 to 70 TR (R22).
The TRE design incorporates a hot-pressed brass body with the entire power element, including the capillary tube and bulb, fabricated from stainless steel. The offset inline bimetal solder connections are formed from rolled stainless steel and copper. The valve incorporates a 2-way balanced port orifice making it ideal for biflow operation.
External superheat adjustment is a standard feature on all TRE valves. For non-adjustable OEM versions, a setting assembly is available for field retrofit. A strainer is also available as an accessory for mounting in the inlet connection.
TRE valves can be used for all fluorinated refrigerants, and are available for R22, R410A, R134a, and R407C. Models for other refrigerants can be produced to order.
Contact Danfoss for further information.
Features
Thermostatic charge for R410A, R22, R134A, and R407C:
N −40 → +50°F without MOP −40 →+10°C without MOP
K −15 →+50°F MOP + 60°F −25 → +10°C MOP + 15°C
Standard program Static superheat (SS):
Valves without MOP: 9°F Valves with MOP: 7.2°F
Capillary tube length: TRE10 5 ft. TRE20 5 ft. TRE40 10 ft. TRE80 10 ft.
Bimetal connections - waterless soldering - quicker installation times - higher productivity
Developed for R 410A - R 22, R 407C, R 134a, R 404A, R 507 and other fluorinated refrigerants
Laser-welded power element: - longer diaphragm life - high pressure tolerance and working pressure
Stainless steel power element, capillary tube and bulb - high corrosion resistance - high strength and vibration resistance - fast installation: self-aligning bulb secures with one strap - good thermal contact and transmission
Two-way balanced port / biflow function - superheat unaffected by condensing pressure independent of flow direction - One valve for heat pump service
Stainless steel double contact bulb - straightforward and fast installation - good thermal contact and heat transfer
Adjustable/non-adjustable version - setting spindle assembly can be retrofitted to non-adjustable version
4 DKRCC.PD.AL0.A2.22 / 520H1748 © Danfoss A/S (AC-DSL / SKT), 10 - 2006
Technical leaflet Thermostatic expansion valve, Type TRE10, TRE20, TRE40, and TRE80
Valve options
Technical data
MOP Function
In addition to the standard program, TRE valves are also available with the following options:
Refrigerants - Range - MOP:Contact Danfoss for information regarding different refrigerants and evaporator ranges.
Static superheat, adjustable:3.6 °F → 10.8 °F
Static superheat, fixed:3.6 °F → 10.8 °F
Maximum operating temperature- Thermostatic Element:
N charge 210 °F/100°C (R 410A max. 155°/ 70°C) K charge 302 °F/ 150°C
- Valve body: 230°F/ 110°C
Maximum working pressurePS = 610 psig/ 42 bar
Maximum test pressurep' = 670 psig/ 46.5 bar
To avoid charge migration when MOP valves are used, the bulb temperature must be lower than the thermostatic element temperature.
Biflow operationTRE valves are designed for biflow operation. During flow in the reverse direction, the rated capacity is reduced by as much as 10%.
Capillary tube length:Type Capillary tube length
TRE10 0.9 or 1.5 m 3 or 5 ft.
TRE20 0.9 ; 1.5 or 3.0 m 3; 5 or 10 ft.
TRE40 1.5 or 3.0 m 5 or 10 ft.
TRE80 1.5 or 3.0 m 5 or 10 ft.
Connections:Type Inlet ODF solder Outlet ODF solder
TRE101/2 - 5/8 - 7/8 in. 1/2 - 5/8 - 7/8 - 11/8 in.
12 - 16 - 22 mm 12 -16 - 22 - 28 mm
TRE205/8 - 7/8 - 11/8 in. 5/8 - 7/8 - 11/8 - 13/8 in.
16 - 22 - 28 mm 16 - 22 - 28 - 35 mm
TRE407/8 - 11/8 in. 7/8 - 11/8 - 13/8 in.
22 - 28 mm 22 - 28 - 35 mm
TRE8011/8 - 13/8 in. 11/8 - 13/8 - 15/8 in.
28 - 35 mm 28 - 35 - 42 mm
Equalising connection 1/4 in. or 6 mm ODF on all types.Sizes in bold type are standard sizes.
MOP pointsRefrigerant Range K
–25 →+10°C / –15 →+50°F
MOP pointfor evaporating temperature te
and evaporating pressure pe 1)
te = +15°C/+60°F
R 22 pe = 100 psig/6.9 bar
R 410A pe = 165 psig/11.5 bar
R 407C pe = 95 psig/6.6 bar
R 134a pe = 55 psig/3.9 bar
R 404A/R507 pe = 120 psig/8.4 bar1) pe in bar gauge
© Danfoss A/S ( AC-DSL / SKT), 10 - 2006 DKRCC.PD.AL0.A2.22 / 520H1748 5
Technical leaflet Thermostatic expansion valve, Type TRE10, TRE20, TRE40, and TRE80
Design/Function
1. Bulb with capillary tube2. Thermostatic element3. Pressure pin seal4. Two-way balanced port5. Setting spindle for adjustment of static
superheat SS 6. Setting spindle assembly (accessory)
Static superheat SS can be adjusted with the setting spindle (5), see fig. 2. The standard superheat setting (SS) is 4K / 7.2°F for valves with MOP and 5K / 9.0°F for valves without MOP. Valves can also be supplied with a fixed setting. For factory non-adjustable valves, an adjustment assembly is available as an optional accessory (6).
The two-way balanced port feature (4) ensures minimal superheat changes when differential pressure varies. This feature makes the valve ideal for biflow operation. The central pressure pin is fitted with a robust seal (3) that ensures maximum tightness for the life of the valve.
Fig. 3. SuperheatFig. 2. TRE
Terminology (fig.3)SS = Static superheatOS = Opening superheatSH = SS + OS = Total superheat
ExampleStatic superheat SS = 7.2°F (factory setting)Opening superheat OS = 7.2°F
The opening superheat is 4K, i.e. from the point the valve begins to open up to nominal capacity. Opening superheat is determined by the design and cannot be changed.
Total superheat SH = SS + OS SH = 7.2 + 7.2 = 14.4°FTotal superheat SH can be changed by changing SS (by using the setting spindle).
Important valve information is provided on the diaphragm element (fig. 1).
Main valve data example:TRE10 = Valve type8 TR = Rated capacity Qnom. in Tons of Refrigeration28 kW = Rated capacity Qnom. in kWR 22 = Refrigerant-25/+10°C = Evaporating temperature range (°C)-15/+50°F = Evaporating temperature range (°F)067L1018 = Code numberMOP 100 = Max. Operating Pressure PS 42 bar/MWP 610 psig = Max. working pressure in bar and psig
Refrigerant code: R 22 = X R 134a = N R 407C = Z R 410A = L R 404A / R 507 = S
Identification
Fig. 1 Diaphragm element
Type description: TRE10 - 8X100 TRE = Product family 10 = Max. capacity / body size 8 = 8TR, rated refrigeration capacity X = Refrigerant code, R22 100 = MOP in psig
6 DKRCC.PD.AL0.A2.22 / 520H1748 © Danfoss A/S (AC-DSL / SKT), 10 - 2006
Technical leaflet Thermostatic expansion valve, Type TRE10, TRE20, TRE40, and TRE80
Ordering Valve and bulb strap are supplied in bulk industrial pack or individually in multipack. The numbers supplied are as follows:
evaporator capacity by the correction factor given below.Note:Insufficient subcooling can produce flash gas.
ExampleRefrigerant = R 22Evaporating temperature te = −14 °F pe = 51 psiCondensing temperature tc = 104 °F pc = 225 psiPressure drop in valve ∆p = 225 - 51 - 20 = 154 psi1)
Subcooling ∆tsub = 27 °F
Evaporator capacity = 11.4 TRCorrection value from table = 1.11
Sizing Correction for subcooling ∆tsub
The evaporator capacity used must be corrected if subcooling deviates from 7.2°F. The corrected capacity can be obtained by dividing the
The corrected evaporator capacity thus becomes 11.4 / 1.11 = 10.3 TR)Since the expansion valve capacity must be equal to or slightly greater than the corrected evaporator capacity of 10.3 TR, a TRE20-12.5X with a table capacity of 10.8 TR would be a suitable choice.
1) The pressure drop (pc - pe) must be corrected for pressure drop in the liquid line and distributor and leads. If in doubt, allow 20 psi. Therefore actual pressure drop is ∆p = pc - pe - 20 psi.
To avoid charge migration when MOP valves are used, the bulb temperature must be lower than the thermostatic element temperature.
Correction factor ∆tsub
4 K 10 K 15 K 20 K 25 K 30 K 35 K 40 K 45 K 50 K
7.2°F 18°F 27°F 36°F 45°F 54°F 63°F 72°F 81°F 90°F
R 22 1.00 1.06 1.11 1.15 1.20 1.25 1.30 1.35 1.39 1.44
R 410A 1.00 1.08 1.15 1.21 1.27 1.33 1.39 1.45 1.50 1.56
R 407C 1.00 1.08 1.14 1.21 1.27 1.33 1.39 1.45 1.51 1.57
R 134a 1.00 1.08 1.13 1.19 1.25 1.31 1.37 1.42 1.48 1.54
R 404A / R 507 1.00 1.10 1.20 1.29 1.37 1.46 1.54 1.63 1.70 1.78
Type Industrial pack Multipack
TRE10 12 pcs 12 pcs
TRE20 8 pcs 8 pcs
TRE40 4 pcs 6 pcs
TRE80 4 pcs 4 pcs
Overview of product rangeCapacity Refrigerant Range MOP
TR kW Type Code
8 - 70 28 - 246 R 22 X K 15°C / 60°F
8 - 70 28 - 246 R 22 X N
8 - 85 28 - 298 R 410A L K 15°C / 60°F
8 - 85 28 - 298 R 410A L N
8 - 70 28 - 246 R 407C Z K 15°C / 60°F
8 - 70 28 - 246 R 407C Z N
5 - 56 18 - 196 R 134a N K 15°C / 60°F
5 - 56 18 - 196 R 134a N N
K: −15 → +50°F / −25 → +10°CN: −40 → +50°F / −40 → +10°C
MOP pointsRefrigerant Range K
–25 →+10°C / –15 →+50°F
MOP point for evaporating temperature te
and evaporating pressure pe 1)
te = +15°C/+60°F
R 22 pe = 100 psig/6.9 bar
R 410A pe = 165 psig/11.5 bar
R 407C pe = 95 psig/6.6 bar
R 134a pe = 55 psig/3.9 bar
R 404A/R507 pe = 120 psig/8.4 bar1) pe in bar gauge
© Danfoss A/S ( AC-DSL / SKT), 10 - 2006 DKRCC.PD.AL0.A2.22 / 520H1748 7
Technical leaflet Thermostatic expansion valve, Type TRE10, TRE20, TRE40, and TRE80
OrderingStandard program
Pressure equalisation = 1/4 in. ODF
1) The rated capacity is based on: ARI Standard 750-972) Number of valves in industrial and
multipacks: (see previous page).
R22, R410A
Refrigerant
TypeRated capacity
Qnom 1)
TR
Rated capacity
Qnom 1)
TR
Connection
ODF solder
Range K–15°/+50°F MOP 60°F–25°/+10°C MOP 15°C
Range N–40°/+50°F–40°/+10°C
Inlet
in.
Outlet
in.
Code no.Multi-pack2)
Code no.Industrial
pack2)
Code no.Multi-pack2)
Code no.Industrial
pack2)
R22
TRE10- 8X
TRE10-10X
8
10
5/8
5/8
7/8
7/8
067L1021
067L1024
067L2021
067L2024
067L1121
067L1124
067L2121
067L2124
TRE20-10X
TRE20-12.5X
TRE20-15X
TRE20-20X
TRE20-20X
10
12.5
15
20
20
5/8
5/8
7/8
7/8
7/8
7/8
7/8
11/8
11/8
13/8
067L1075
067L1079
067L1084
067L1087
067L1088
067L2075
067L2079
067L2084
067L2087
067L2088
067L1175
067L1179
067L1184
067L1187
067L1188
067L2175
067L2179
067L2184
067L2187
067L2188
TRE40-20X
TRE40-20X
TRE40-25X
TRE40-25X
TRE40-30X
TRE40-40X
20
20
25
25
30
40
7/8
7/8
7/8
11/8
11/8
11/8
11/8
13/8
13/8
13/8
13/8
13/8
067L3001
067L3002
067L3005
067L3006
067L3009
067L3012
067L4001
067L4002
067L4005
067L4006
067L4009
067L4012
067L3101
067L3102
067L3105
067L3106
067L3109
067L3112
067L4101
067L4102
067L4105
067L4106
067L4109
067L4112
TRE80-40X
TRE80-55X
TRE80-70X
40
55
70
11/8
11/8
11/8
13/8
13/8
15/8
067L3060
067L3063
067L3066
067L4060
067L4063
067L4066
067L3160
067L3163
067L3166
067L4160
067L4163
067L4166
R410A
TRE10- 8L
TRE10- 8L
TRE10- 10L
TRE10- 10L
TRE10-12.5L
TRE10-12.5L
TRE10- 15L
TRE10- 15L
8
8
10
10
12.5
12.5
15
15
5/8
5/8
5/8
5/8
5/8
5/8
7/8
7/8
5/8
7/8
5/8
7/8
5/8
7/8
7/8
11/8
067L1028
067L1029
067L1030
067L1031
067L1034
067L1035
067L1038
067L1039
067L2028
067L2029
067L2030
067L2031
067L2034
067L2035
067L2038
067L2039
067L1128
067L1129
067L1130
067L1131
067L1134
067L1135
067L1138
067L1139
067L2128
067L2129
067L2130
067L2131
067L2134
067L2135
067L2138
067L2139
TRE20-15L
TRE20-15L
TRE20-20L
TRE20-20L
TRE20-25L
TRE20-25L
15
15
20
20
25
25
7/8
7/8
7/8
7/8
7/8
11/8
7/8
11/8
7/8
11/8
11/8
11/8
067L1091
067L1092
067L1093
067L1094
067L1097
067L1099
067L2091
067L2092
067L2093
067L2094
067L2097
067L2099
067L1191
067L1192
067L1193
067L1194
067L1197
067L1199
067L2191
067L2192
067L2193
067L2194
067L2197
067L2199
TRE40-25L
TRE40-25L
TRE40-35L
TRE40-35L
TRE40-40L
TRE40-40L
TRE40-55L
TRE40-55L
25
25
35
35
40
40
55
55
7/8
11/8
11/8
11/8
11/8
11/8
11/8
11/8
11/8
13/8
11/8
13/8
11/8
13/8
11/8
13/8
067L3015
067L3016
067L3019
067L3020
067L3023
067L3024
067L3027
067L3028
067L4015
067L4016
067L4019
067L4020
067L4023
067L4024
067L4027
067L4028
067L3115
067L3116
067L3119
067L3120
067L3123
067L3124
067L3127
067L3128
067L4115
067L4116
067L4119
067L4120
067L4123
067L4124
067L4127
067L4128
TRE80-55L
TRE80-55L
TRE80-80L
TRE80-80L
TRE80-80L
TRE80-100L
TRE80-100L
55
55
80
80
80
100
100
11/8
11/8
11/8
11/8
13/8
11/8
13/8
11/8
13/8
13/8
15/8
13/8
15/8
15/8
067L3069
067L3070
067L3073
067L3074
067L3075
067L3078
067L3079
067L4069
067L4070
067L4073
067L4074
067L4075
067L4078
067L4079
067L3169
067L3170
067L3173
067L3174
067L3175
067L3178
067L3179
067L4169
067L4170
067L4173
067L4174
067L4175
067L4178
067L4179
For connections, refrigerants, capillary tube lengths, etc. outside the standard program, see Valve options.
8 DKRCC.PD.AL0.A2.22 / 520H1748 © Danfoss A/S (AC-DSL / SKT), 10 - 2006
Technical leaflet Thermostatic expansion valve, Type TRE10, TRE20, TRE40, and TRE80
OrderingStandard program
Setting spindle assembly:For installation on valves with fixed setting.Note: Spring not included
Accessories
Pressure equalisation = 1/4 in. ODF
1) According to ARI 750 Rated capacities for range N are
based on: Liquid temperature ahead of
expansion valve tl = 100°F Evaporating temperature te = 40°F Pressure drop across valve ∆p =
60 psi for R 134a Pressure drop across valve ∆p =
100 psi for R 22, R 404A, R 407C and R 507
Pressure drop across valve ∆p = 160 psi for R 410A
2) Number of valves in industrial and multipacks: (see page 6)
R407C, R134a
Refrigerant
TypeRated capacity
Qnom 1)
TR
Rated capacity
Qnom 1)
TR
Connection
ODF solder
Range K–15°/+50°F MOP 60°F–25°/+10°C MOP 15°C
Range N–40°/+50°F–40°/+10°C
Inlet
in.
Outlet
in.
Code no.Multi-pack2)
Code no.Industrial
pack2)
Code no.Multi-pack2)
Code no.Industrial
pack2)
R407C
TRE10- 8Z
TRE10-10Z
8
10
5/8
5/8
7/8
7/8
067L1012
067L1015
067L2012
067L2015
067L1112
067L1115
067L2112
067L2115
TRE20-10Z
TRE20-12.5Z
TRE20-15Z
TRE20-20Z
TRE20-20Z
10
12.5
15
20
20
5/8
5/8
7/8
7/8
7/8
7/8
7/8
11/8
11/8
13/8
067L1058
067L1062
067L1067
067L1070
067L1071
067L2058
067L2062
067L2067
067L2070
067L2071
067L1158
067L1162
067L1167
067L1170
067L1171
067L2158
067L2162
067L2167
067L2170
067L2171
TRE40-20Z
TRE40-20Z
TRE40-25Z
TRE40-25Z
TRE40-30Z
TRE40-40Z
20
20
25
25
30
40
7/8
7/8
7/8
11/8
11/8
11/8
11/8
13/8
13/8
13/8
13/8
13/8
067L3030
067L3031
067L3034
067L3035
067L3038
067L3040
067L4030
067L4031
067L4034
067L4035
067L4038
067L4040
067L3130
067L3131
067L3134
067L3135
067L3138
067L3140
067L4130
067L4131
067L4134
067L4135
067L4138
067L4140
TRE80-40Z
TRE80-55Z
TRE80-70Z
40
55
70
11/8
11/8
11/8
13/8
13/8
15/8
067L3082
067L3085
067L3088
067L4082
067L4085
067L4088
067L3182
067L3185
067L3188
067L4182
067L4185
067L4188
R134a
TRE10- 5N
TRE10- 7N
5
7
5/8
5/8
7/8
7/8
067L1003
067L1006
067L2003
067L2006
067L1103
067L1106
067L2103
067L2106
TRE20- 7N
TRE20- 9N
TRE20-11N
TRE20-14N
TRE20-14N
7
9
11
14
14
5/8
5/8
7/8
7/8
7/8
7/8
7/8
11/8
11/8
13/8
067L1041
067L1045
067L1050
067L1053
067L1054
067L2041
067L2045
067L2050
067L2053
067L2054
067L1141
067L1145
067L1150
067L1153
067L1154
067L2141
067L2145
067L2150
067L2153
067L2154
TRE40-14N
TRE40-14N
TRE40-16N
TRE40-16N
TRE40-20N
TRE40-25N
14
14
16
16
20
25
7/8
7/8
7/8
11/8
11/8
11/8
11/8
13/8
13/8
13/8
13/8
13/8
067L3043
067L3044
067L3047
067L3048
067L3051
067L3054
067L4043
067L4044
067L4047
067L4048
067L4051
067L4054
067L3143
067L3144
067L3147
067L3148
067L3151
067L3154
067L4143
067L4144
067L4147
067L4148
067L4151
067L4154
TRE80-25N
TRE80-35N
TRE80-45N
25
35
45
11/8
11/8
11/8
11/8
13/8
15/8
067L3091
067L3094
067L3097
067L4091
067L4094
067L4097
067L3191
067L3194
067L3197
067L4191
067L4194
067L4197
For connections, refrigerants, capillary tube lengths, etc. outside the standard program, see Valve options.
Type Tightening torque Code no.
TRE10 30 Nm (22 ft lbf ) 067L1295
TRE20 46 Nm (34 ft lbf ) 067L1296
TRE40 66 Nm (49 ft lbf ) 067L1297
TRE80 90 Nm (66 ft lbf ) 067L1298
© Danfoss A/S ( AC-DSL / SKT), 10 - 2006 DKRCC.PD.AL0.A2.22 / 520H1748 9
Technical leaflet Thermostatic expansion valve, Type TRE10, TRE20, TRE40, and TRE80
Capacity
R22Capacity in TR for range N and K and opening superheat OS = 7.2°FType andrated capacity Qnom
TR
Pressure drop across valve ∆p psi Pressure drop across valve ∆p psi
40 70 100 130 160 190 220 250 40 70 100 130 160 190 220 250
Evaporating temperature +50°F Evaporating temperature +50°F
TRE10- 8XTRE10-10X
6.48.1
7.89.7
8.610.7
9.011.2
9.411.5
9.411.7
9.411.7
9.311.6
6.27.7
7.49.3
8.110.2
8.510.7
8.811.0
8.911.1
8.911.1
8.811.0
TRE20-10XTRE20-12.5XTRE20-15XTRE20 20X
8.510.112.416.2
10.312.215.019.5
11.313.516.521.3
11.914.217.422.5
12.214.617.923.2
12.414.818.123.5
12.414.818.123.5
12.414.618.023.4
8.09.6
11.815.5
9.711.614.218.6
10.712.715.620.4
11.213.416.421.4
11.513.716.821.9
11.613.817.022.1
11.613.817.022.1
11.513.716.822.0
TRE40-20XTRE40-25XTRE40-30XTRE40-40X
16.120.324.332.7
19.524.529.439.4
21.627.032.343.3
22.728.434.145.5
23.429.335.146.8
23.729.635.547.5
23.829.835.647.7
23.529.535.447.4
15.219.223.131.3
18.423.227.937.6
20.325.430.541.0
21.526.732.143.2
21.927.432.944.3
22.127.733.344.8
22.227.833.344.7
22.027.533.144.6
TRE80-40XTRE80-55XTRE80-70X
32.745.357.5
39.554.369.0
43.459.475.2
45.662.579.1
46.864.181.4
47.464.982.4
47.365.082.7
47.164.682.3
30.943.055.1
36.751.365.7
40.556.071.6
42.658.775.1
43.760.276.9
44.160.877.9
44.160.978.0
43.760.477.6
Evaporating temperature +30°F Evaporating temperature +20°F
TRE10-8XTRE10-10X
5.97.4
7.08.8
7.79.6
8.010.1
8.210.3
8.310.4
8.110.4
8.210.3
5.57.0
6.68.3
7.19.0
7.59.4
7.69.6
7.79.6
7.69.6
7.59.5
TRE20-10XTRE20-12.5XTRE20-15XTRE20-20X
7.59.0
11.114.7
9.110.813.417.5
9.911.814.619.1
10.412.415.319.9
10.712.715.620.4
10.912.815.820.6
10.712.815.720.6
10.612.715.620.4
7.08.4
10.413.7
8.410.012.316.0
9.110.913.417.6
9.611.414.018.5
9.711.614.418.9
9.811.714.419.0
9.811.714.418.9
9.711.514.218.7
TRE40-20XTRE40-25XTRE40- 30XTRE40-40X
14.318.021.829.4
17.221.626.135.2
18.823.628.438.5
19.724.829.940.4
20.225.331.141.4
20.425.630.941.7
20.425.630.841.7
20.225.430.6 41.4
13.216.720.227.9
15.819.924.132.8
17.221.726.235.7
18.122.727.437.3
18.523.228.038.1
18.623.428.238.4
18.623.328.238.4
18.423.127.938.0
TRE80- 40XTRE80- 55XTRE80-70X
28.840.352.2
34.548.061.9
37.652.167.2
39.354.670.3
40.255.972.0
40.656.472.7
40.556.372.7
40.255.872.2
26.637.548.7
31.644.357.5
33.848.062.3
35.950.165.0
36.751.266.5
36.951.667.1
36.851.567.0
36.451.066.4
Evaporating temperature +10°F Evaporating temperature 0°F
TRE10-8XTRE10-10X
5.16.5
6.17.8
6.68.3
6.88.6
7.08.8
7.08.8
6.98.8
6.98.7
4.75.9
5.57.0
6.07.5
6.27.8
6.38.0
6.38.0
6.37.9
6.27.8
TRE20-10XTRE20-12.5XTRE20-15XTRE20- 20X
6.47.79.5
12.6
7.69.1
11.314.9
8.39.9
12.316.2
8.610.312.816.8
8.810.513.017.2
8.810.613.117.3
8.810.513.017.2
8.710.412.817.0
5.86.98.6
11.5
6.98.2
10.213.5
7.48.9
11.014.6
7.79.2
11.515.2
7.89.4
11.715.4
7.99.4
11.715.5
7.89.4
11.615.4
7.79.2
11.415.2
TRE40-20XTRE40-25XTRE40-30XTRE40-40X
12.115.318.525.5
14.418.321.930.1
15.619.723.832.6
16.320.624.934.0
16.721.025.434.7
16.821.125.534.9
16.721.025.434.8
16.520.825.234.5
10.913.816.823.2
12.916.319.827.3
14.017.621.529.4
14.618.422.330.6
14.818.722.731.2
14.918.822.831.3
14.818.722.731.2
14.618.522.430.8
TRE80-40XTRE80-55XTRE80-70X
24.234.344.9
28.740.452.8
31.043.757.0
32.445.559.4
33.046.460.8
33.246.761.1
33.146.561.0
32.746.060.4
21.830.940.9
25.736.347.8
27.739.251.6
28.940.853.7
29.441.554.7
29.541.755.0
29.341.554.8
29.041.054.2
Evaporating temperature -10°F Evaporating temperature -20°F
TRE10-8XTRE10-10X
4.25.4
5.06.3
5.36.8
5.57.0
5.67.1
5.67.1
5.67.1
5.57.0
3.84.8
4.45.6
4.76.0
4.96.2
4.96.3
4.96.3
4.96.2
4.86.1
TRE20-10XTRE20-12.5XTRE20-15XTRE20-20X
5.26.27.7
10.3
6.17.39.1
12.1
6.67.99.8
13.0
6.88.2
10.113.2
6.98.3
10.313.7
6.98.3
10.313.7
6.98.2
10.213.6
6.88.1
10.113.4
4.55.46.89.1
5.36.48.0
10.7
5.76.98.6
11.4
5.97.18.9
11.8
6.07.29.0
12.0
6.07.29.0
12.0
6.07.18.9
11.9
5.97.08.8
11.7
TRE40-20XTRE40-25XTRE40-30XTRE40-40X
9.712.314.920.8
11.414.417.624.4
12.315.619.026.2
12.816.219.627.2
13.016.520.027.7
13.116.520.127.8
13.016.420.027.6
12.816.219.727.3
8.510.813.218.3
10.012.715.421.5
10.813.616.623.0
11.214.117.223.9
11.314.417.524.3
11.314.417.524.3
11.314.317.424.1
11.114.017.123.8
TRE80-40XTRE80-55XTRE80-70X
19.328.136.5
22.732.342.8
24.534.746.0
25.436.147.8
25.836.748.6
25.936.848.9
25.736.648.6
25.436.148.0
17.024.332.5
19.928.437.8
21.230.540.6
22.131.642.1
22.432.142.7
22.532.142.9
22.331.942.6
22.031.442.0
10 DKRCC.PD.AL0.A2.22 / 520H1748 © Danfoss A/S (AC-DSL / SKT), 10 - 2006
Technical leaflet Thermostatic expansion valve, Type TRE10, TRE20, TRE40, and TRE80
Capacity
R22Capacity in TR for range N and K and opening superheat OS = 7.2°FType andrated capacity Qnom
TR
Pressure drop across valve ∆p psi Pressure drop across valve ∆p psi
40 70 100 130 160 190 220 250 40 70 100 130 160 190 220 250
Evaporating temperature -30°F Evaporating temperature -40°F
TRE10-8XTRE10-10X
3.34.2
3.84.9
4.15.2
4.25.4
4.35.5
4.35.5
4.25.4
4.15.3
2.93.7
3.34.2
3.54.5
3.64.7
3.74.7
3.74.7
3.64.6
3.54.5
TRE20-10XTRE20-12.5XTRE20-15XTRE20-20X
3.94.75.98.0
4.65.56.99.3
4.95.97.49.9
5.16.17.6
10.2
5.26.27.7
10.4
5.26.27.7
10.4
5.16.17.6
10.3
5.06.07.5
10.1
3.44.15.16.9
3.94.75.97.9
4.25.16.38.5
4.35.26.58.8
4.45.36.68.9
4.45.36.68.8
4.35.26.58.8
4.25.16.48.6
TRE40-20XTRE40-25XTRE40-30XTRE40-40X
7.49.4
11.516.0
8.611.013.418.6
9.311.814.420.0
9.612.214.820.7
9.712.315.021.0
9.712.315.121.0
9.612.214.920.8
9.512.014.720.5
6.38.09.9
13.8
7.49.4
11.416.0
7.910.012.217.2
8.210.412.717.7
8.310.512.817.9
8.210.512.817.9
8.110.412.717.7
8.010.212.417.4
TRE80-40XTRE80-55XTRE80-70X
14.721.228.4
17.124.632.9
18.426.435.3
19.027.336.5
19.327.737.1
19.327.737.1
19.127.436.9
18.827.036.3
12.618.224.5
14.621.028.3
15.622.530.3
16.223.331.3
16.423.631.8
16.323.631.8
16.223.331.5
15.922.931.0
Correction factors for subcooling ∆tsub
∆tu 10°F 20°F 30°F 40°F 50°F 60°F 70°F 80°F 90°F 100°F
R 22 1.00 1.06 1.11 1.17 1.22 1.28 1.33 1.35 1.44 1.49
© Danfoss A/S ( AC-DSL / SKT), 10 - 2006 DKRCC.PD.AL0.A2.22 / 520H1748 11
Technical leaflet Thermostatic expansion valve, Type TRE10, TRE20, TRE40, and TRE80
Capacity
R410ACapacity in TR for range N and K and opening superheat OS = 7.2°FType and rated capacity Qnom
TR
Pressure drop across valve ∆p psi Pressure drop across valve ∆p psi
50 100 150 200 250 300 350 400 50 100 150 200 250 300 350 400
Evaporating temperature +50°F Evaporating temperature +40°F
TRE10-8LTRE10-10LTRE10-12.5LTRE10-15L
6.77.89.3
11.0
8.49.8
11.513.8
9.210.712.715.1
9.611.113.115.6
9.611.113.115.6
9.310.812.915.3
9.010.412.314.7
8.59.8
11.713.9
6.67.69.1
10.8
8.29.6
11.513.6
9.010.412.414.8
9.310.812.815.2
9.210.712.815.2
9.110.512.515.0
8.710.012.014.4
8.29.5
11.413.6
TRE20-15LTRE20-20LTRE20-25L
11.516.521.3
14.620.826.9
15.922.829.5
16.623.730.6
16.723.830.7
16.423.330.2
15.822.529.1
14.921.227.5
11.216.121.1
14.120.226.3
15.622.228.8
16.022.629.8
16.123.029.9
15.722.629.3
15.221.828.3
14.420.626.8
TRE40-25LTRE40-35LTRE40-40LTRE40-55L
21.426.732.042.3
27.133.840.753.5
29.637.144.358.4
30.738.445.860.3
30.838.445.960.4
30.237.745.059.3
29.036.243.357.1
27.434.240.954.0
20.725.931.241.3
26.032.639.151.9
28.535.642.756.6
29.436.944.258.5
29.536.944.258.5
28.936.143.357.4
27.834.841.755.3
26.332.939.552.5
TRE80-55LTRE80-80LTRE80-100L
44.460.275.5
55.875.194.2
60.981.9
102.6
62.984.5
106.0
62.984.4
106.1
61.482.6
104.0
59.079.8
100.2
55.675.094.9
43.158.574.0
53.672.691.8
58.381.099.8
60.181.3
102.9
60.081.3
103.0
58.779.6
101.0
56.476.697.5
53.472.692.6
Evaporating temperature +30°F Evaporating temperature +20°F
TRE10-8LTRE10-10LTRE10-12.5LTRE10-15L
6.47.48.8
10.5
7.99.2
11.013.1
8.610.011.914.3
8.910.312.314.8
8.810.312.314.7
8.610.012.014.3
8.39.6
11.513.8
7.99.1
10.913.1
6.07.08.4
10.2
7.58.7
10.512.6
8.19.5
11.313.6
8.39.7
11.613.9
8.39.7
11.613.9
8.19.4
11.313.6
7.79.0
10.913.1
7.48.6
10.312.4
TRE20-15LTRE20-20LTRE 20-25L
10.715.520.4
13.519.425.4
14.721.227.7
15.221.928.5
15.321.928.9
15.021.528.1
14.420.727.1
13.719.725.8
10.114.719.4
12.718.424.1
13.820.026.2
14.320.627.0
14.320.627.0
14.020.226.5
13.519.425.6
12.818.524.3
TRE40-25LTRE40-35LTRE40 40LTRE40-55L
19.724.829.940.0
24.731.037.349.7
27.133.841.254.1
27.834.941.955.8
27.834.942.055.8
27.234.241.054.7
26.232.939.552.8
24.931.237.550.2
18.523.428.237.8
23.129.135.147.1
25.131.638.151.1
25.932.639.252.6
25.932.539.252.5
25.331.838.351.5
24.430.736.949.7
23.129.135.147.2
TRE80-55LTRE80-80LTRE80-100L
41.056.171.7
50.769.288.4
55.075.195.8
56.777.398.6
56.677.298.6
55.375.596.8
53.272.793.4
50.469.088.9
38.453.068.5
47.565.384.2
51.470.590.6
52.872.493.2
52.672.293.2
51.470.791.3
49.568.188.1
46.964.783.8
Evaporating temperature +10°F Evaporating temperature 0°F
TRE10-8LTRE10-10LTRE10-12.5LTRE10-15L
5.76.68.09.6
7.08.29.8
11.8
7.58.8
10.412.7
7.79.0
10.813.0
7.79.0
10.813.0
7.58.8
10.512.6
7.28.4
10.112.2
6.87.99.5
11.5
5.26.17.48.9
6.47.59.1
10.9
6.98.19.7
11.8
7.18.29.9
12.0
7.08.29.9
11.9
6.88.09.6
11.6
6.57.69.2
11.1
6.27.28.7
10.6
TRE20-15LTRE20-20LTRE20-25L
9.413.818.3
11.817.122.6
12.818.524.6
13.219.125.2
13.119.125.1
12.918.724.6
12.418.023.8
11.817.122.6
8.712.817.0
10.815.720.9
11.717.022.5
12.017.423.1
11.917.323.1
11.717.022.6
11.216.421.8
10.715.620.7
TRE40-25LTRE40-35LTRE40-40LTRE40-55L
17.121.726.336.0
21.326.932.543.8
23.129.235.247.6
23.829.936.248.8
23.729.936.148.7
23.229.235.347.7
22.328.134.046.0
21.226.732.343.8
15.719.924.233.1
19.424.629.840.5
21.026.532.143.7
21.527.232.944.7
21.527.132.844.6
21.026.532.143.6
20.225.530.842.0
19.124.029.339.9
TRE80-55LTRE80-80LTRE80-100L
35.549.564.5
43.860.778.7
47.365.484.8
48.567.087.0
48.266.786.8
47.165.285.0
45.362.882.0
43.059.778.1
32.545.659.8
39.955.672.8
42.959.778.2
43.961.280.1
43.760.879.8
42.659.478.1
41.057.275.2
38.954.371.6
Evaporating temperature -10°F Evaporating temperature -20°F
TRE10-8LTRE10-10LTRE10-12.5LTRE10-15L
4.85.66.88.2
5.86.88.2
10.0
6.27.38.8
10.7
6.47.49.0
10.9
6.37.48.9
10.8
6.17.28.7
10.5
5.96.98.3
10.1
5.56.57.89.5
4.35.06.17.4
5.26.17.49.0
5.66.57.99.6
5.66.68.09.8
5.66.57.99.6
5.46.47.79.4
5.26.17.49.0
4.95.77.08.5
TRE20-15LTRE20-20LTRE20-25L
7.911.615.5
9.714.319.0
10.515.320.5
10.715.720.9
10.715.620.9
10.415.320.4
10.014.719.6
9.614.018.6
7.110.414.0
8.712.717.1
9.313.718.3
9.514.018.7
9.513.918.6
9.213.518.1
8.913.017.4
8.412.316.6
TRE40-25LTRE40-35LTRE40-40LTRE40-55L
14.218.022.130.2
17.422.126.936.8
18.823.828.939.5
19.324.429.640.4
19.224.229.440.2
18.723.628.739.3
18.022.727.637.8
17.021.526.235.9
12.616.119.627.1
15.519.624.032.9
16.621.125.735.3
17.021.526.236.0
16.921.426.035.8
16.420.825.434.8
15.820.024.333.5
14.919.023.131.8
TRE80-55LTRE80-80LTRE80-100L
29.341.554.9
35.850.266.4
38.553.971.1
40.155.172.7
39.054.772.3
38.053.370.7
36.551.368.1
34.648.764.7
26.137.149.5
31.844.859.6
34.047.963.7
34.748.965.1
34.448.564.7
33.547.363.1
32.145.460.7
30.443.157.6
12 DKRCC.PD.AL0.A2.22 / 520H1748 © Danfoss A/S (AC-DSL / SKT), 10 - 2006
Technical leaflet Thermostatic expansion valve, Type TRE10, TRE20, TRE40, and TRE80
Capacity
R410ACapacity in TR for range N and K and opening superheat OS = 7.2°FType and rated capacity Qnom
TR
Pressure drop across valve ∆p psi Pressure drop across valve ∆p psi
50 100 150 200 250 300 350 400 50 100 150 200 250 300 350 400
Evaporating temperature -30°F Evaporating temperature -40°F
TRE10-8LTRE10-10LTRE10-12.5LTRE10-15L
3.84.55.46.6
4.65.46.58.0
4.95.77.08.5
4.95.87.18.6
4.85.76.98.5
4.75.66.78.2
4.55.36.47.9
4.35.06.17.4
3.33.94.75.8
4.04.75.77.0
4.25.06.07.4
4.35.06.17.5
4.24.96.07.4
4.14.85.87.1
3.94.65.66.8
3.64.35.26.4
TRE20-15LTRE20-20LTRE20-25L
6.29.2
12.5
7.611.215.1
8.212.016.1
8.312.216.5
8.212.116.3
8.011.815.9
7.711.315.3
7.310.814.5
5.48.0
10.9
6.59.7
13.1
7.010.414.0
7.210.614.3
7.110.514.2
6.910.213.8
6.69.8
13.2
6.29.2
12.5
TRE40-25LTRE40-35LTRE40-40LTRE40-55L
11.114.117.324.0
13.517.221.029.1
14.518.422.531.0
14.818.822.931.7
14.718.622.731.4
14.218.122.130.6
13.717.421.229.3
12.916.420.127.8
9.612.215.121.0
11.714.918.225.2
12.515.919.426.9
12.716.219.727.4
12.616.019.527.1
12.215.519.026.4
11.714.918.225.3
11.014.117.223.9
TRE80-55LTRE80-80LTRE80-100L
23.032.744.0
27.839.452.8
29.742.156.3
30.242.857.4
29.942.456.9
29.141.355.5
27.939.653.3
26.437.550.5
19.928.538.5
24.034.246.1
25.636.449.2
26.037.049.9
25.736.649.5
24.935.648.1
23.934.146.1
22.632.343.7
Correction factors for subcooling ∆tsub
∆tu 10°F 20°F 30°F 40°F 50°F 60°F 70°F 80°F 90°F 100°F
R 410A 1.00 1.08 1.15 1.22 1.29 1.36 1.43 1.49 1.55 1.61
© Danfoss A/S ( AC-DSL / SKT), 10 - 2006 DKRCC.PD.AL0.A2.22 / 520H1748 13
Technical leaflet Thermostatic expansion valve, Type TRE10, TRE20, TRE40, and TRE80
Capacity
R407CCapacity in TR for range N and K and opening superheat OS = 7.2°FType andrated capacity Qnom
TR
Pressure drop across valve ∆p psi Pressure drop across valve ∆p psi
40 70 100 130 160 190 220 250 40 70 100 130 160 190 220 250
Evaporating temperature +50°F Evaporating temperature +40°F
TRE10-8ZTRE10-10Z
6.07.7
7.29.2
7.910.0
8.210.4
8.410.6
8.410.6
8.310.5
8.110.3
5.77.4
6.98.8
7.59.5
7.89.9
7.910.0
7.910.0
7.89.9
7.69.7
TRE20-10ZTRE20-12.5ZTRE20-15ZTRE20-20Z
7.99.4
11.515.2
9.511.313.818.0
10.312.315.119.8
10.812.915.720.7
11.013.116.020.9
11.113.116.020.9
10.913.015.820.7
10.712.715.520.3
7.58.9
11.014.5
8.910.613.117.4
9.711.514.218.6
10.112.014.719.4
10.312.215.019.7
10.212.214.919.6
10.112.114.819.4
9.911.814.519.0
TRE40-20ZTRE40-25ZTRE40-30ZTRE40-40Z
15.219.323.131.1
18.323.127.737.3
20.025.230.140.6
21.026.331.541.9
21.226.832.042.9
21.326.832.043.0
21.026.531.742.6
20.626.031.041.8
14.318.221.930.0
17.221.826.235.5
18.723.628.438.4
19.524.629.539.9
19.825.029.440.4
19.825.029.940.5
19.524.729.639.9
19.124.228.939.2
TRE80-40ZTRE80-55ZTRE80-70Z
31.343.255.5
37.851.465.8
40.755.571.2
42.357.974.0
42.958.775.2
43.058.775.2
42.558.174.5
41.657.073.1
29.540.852.9
35.048.462.5
37.952.267.0
39.354.269.8
39.954.970.7
39.754.870.7
39.454.070.0
38.553.168.5
Evaporating temperature +30°F Evaporating temperature +20°F
TRE10- 8ZTRE10-10Z
5.47.0
6.58.1
7.08.9
7.29.2
7.39.3
7.39.3
7.29.2
7.19.0
5.16.5
6.07.7
6.58.2
6.78.5
6.78.6
6.78.6
6.68.4
6.48.2
TRE20-10ZTRE20-12.5ZTRE20-15ZTRE20-20Z
7.08.3
10.213.6
8.39.9
12.216.1
9.010.813.217.4
9.311.113.618.0
9.411.313.818.2
9.411.213.818.2
9.311.113.617.9
9.110.813.317.5
6.47.79.5
12.6
7.69.1
11.214.9
8.29.8
12.116.0
8.510.112.416.5
8.610.212.616.7
8.510.212.516.6
8.410.012.316.4
8.29.8
12.016.0
TRE40-20ZTRE40-25ZTRE40-30ZTRE40- 40Z
13.417.020.428.3
15.920.124.333.2
17.321.926.335.7
17.922.727.337.0
18.023.027.637.5
18.223.027.037.8
17.922.727.237.0
17.522.126.636.2
12.315.718.826.0
14.618.422.330.6
15.720.024.132.9
16.320.724.934.0
16.520.925.234.4
16.420.825.134.2
16.220.524.733.7
15.820.024.133.0
TRE80- 40ZTRE80-55ZTRE80-70Z
27.438.249.9
32.444.958.4
34.948.562.7
36.250.164.9
36.650.465.8
36.550.565.6
36.049.964.8
35.248.863.5
25.135.246.2
29.541.253.9
31.844.257.8
32.845.859.7
33.246.260.3
32.946.060.1
32.545.359.3
31.844.358.0
Evaporating temperature +10°F Evaporating temperature 0°F
TRE10-8ZTRE10-10Z
4.76.0
5.57.0
5.97.5
6.17.8
6.17.8
6.17.8
6.07.7
5.87.5
4.25.5
4.96.4
5.36.8
5.47.0
5.57.0
5.47.0
5.36.9
5.26.7
TRE20-10ZTRE20-12.5ZTRE20-15ZTRE20- 20Z
5.87.08.6
11.6
6.98.2
10.113.5
7.48.8
10.914.5
7.69.1
11.214.9
7.79.2
11.315.1
7.69.1
11.315.0
7.59.0
11.114.7
7.38.8
10.814.4
5.26.27.8
10.4
6.17.49.1
12.1
6.67.99.7
13.0
6.88.1
10.013.3
6.88.2
10.113.4
6.88.1
10.013.3
6.67.99.8
13.1
6.57.79.5
12.7
TRE40-20ZTRE40-25ZTRE40-30ZTRE40-40Z
11.114.217.323.8
13.216.820.227.8
14.118.021.729.8
14.618.622.430.8
14.818.822.731.1
14.718.722.530.9
14.518.422.230.4
14.117.921.629.7
10.012.815.521.5
11.715.018.125.0
12.616.019.426.7
13.016.520.027.5
13.116.620.127.5
13.016.520.027.5
12.816.219.627.0
12.415.819.126.4
TRE80-40ZTRE80-55ZTRE80-70Z
22.732.042.4
26.637.449.1
28.539.952.5
29.441.254.2
29.741.554.6
29.541.354.3
29.040.653.4
28.339.752.3
20.328.838.2
23.733.444.2
25.335.547.1
26.136.748.4
26.336.948.8
26.136.748.5
25.636.047.7
24.935.146.6
Evaporating temperature -10°F Evaporating temperature -20°F
TRE10-8ZTRE10-10Z
3.84.9
4.45.7
4.76.1
4.86.2
4.86.2
4.86.2
4.76.1
4.65.9
3.44.3
3.95.0
4.15.3
4.25.4
4.25.5
4.25.4
4.15.3
4.05.1
TRE20-10ZTRE20-12.5ZTRE20-15ZTRE20-20Z
4.65.66.99.3
5.46.58.0
10.8
5.86.98.6
11.5
5.97.18.8
11.8
6.07.18.8
11.8
5.97.18.8
11.7
5.86.98.6
11.5
5.66.78.3
11.2
4.04.96.08.1
4.75.67.09.4
5.06.07.4
10.0
5.16.27.6
10.2
5.16.27.6
10.3
5.16.17.6
10.2
5.06.07.49.9
4.85.87.29.6
TRE40-20ZTRE40-25ZTRE40-30ZTRE40-40Z
8.811.313.719.1
10.313.216.022.2
11.114.117.123.6
11.414.517.524.3
11.414.617.624.4
11.314.417.524.2
11.114.217.123.7
10.813.816.723.1
7.79.9
12.016.8
9.011.513.919.4
9.612.214.820.6
9.812.515.221.1
9.912.615.321.2
9.812.515.121.0
9.512.214.820.6
9.311.814.420.0
TRE80-40ZTRE80-55ZTRE80-70Z
17.925.534.0
20.829.439.2
22.231.441.7
22.832.242.8
22.932.443.1
22.732.142.8
22.331.542.0
21.730.740.9
15.622.329.9
18.125.734.3
19.227.336.5
19.728.037.4
19.828.137.6
19.627.837.2
19.227.336.5
18.626.535.5
14 DKRCC.PD.AL0.A2.22 / 520H1748 © Danfoss A/S (AC-DSL / SKT), 10 - 2006
Technical leaflet Thermostatic expansion valve, Type TRE10, TRE20, TRE40, and TRE80
Capacity
R407CCapacity in TR for range N and K and opening superheat OS = 7.2°FType andrated capacity Qnom
TR
Pressure drop across valve ∆p psi Pressure drop across valve ∆p psi
40 70 100 130 160 190 220 250 40 70 100 130 160 190 220 250
Evaporating temperature -30°F Evaporating temperature -40°F
TRE10-8ZTRE10-10Z
2.93.8
3.44.4
3.64.6
3.64.7
3.64.7
3.64.7
3.54.5
3.44.4
2.53.3
2.93.8
3.04.0
3.14.0
3.14.0
3.04.0
3.03.9
2.93.7
TRE20-10ZTRE20-12.5ZTRE20-15ZTRE20-20Z
3.54.25.27.0
4.04.96.08.1
4.35.26.48.6
4.45.36.58.8
4.45.36.58.8
4.35.26.58.7
4.25.16.38.5
4.14.96.18.2
3.03.64.56.0
3.44.15.16.9
3.64.45.47.3
3.74.55.57.5
3.74.55.57.5
3.64.45.47.4
3.54.35.37.2
3.44.15.16.9
TRE40-20ZTRE40-25ZTRE40-30ZTRE40-40Z
6.78.5
10.414.5
7.79.9
12.016.7
8.210.512.717.8
8.410.713.018.2
8.410.713.118.2
8.310.612.918.0
8.110.412.617.6
7.910.112.217.1
5.77.38.9
12.4
6.58.4
10.214.3
6.98.9
10.815.1
7.19.1
11.015.4
7.19.1
11.015.4
7.08.9
10.915.2
6.88.7
10.614.9
6.68.4
10.314.4
TRE80-40ZTRE80-55ZTRE80-70Z
13.519.225.9
15.522.129.7
16.523.531.5
16.924.032.2
16.924.132.3
16.723.832.0
16.323.331.3
15.822.630.4
11.416.422.1
13.118.825.3
13.919.926.9
14.219.827.4
14.220.427.5
14.020.127.1
13.719.626.5
13.319.025.7
Correction factors for subcooling ∆tsub
∆tu 10°F 20°F 30°F 40°F 50°F 60°F 70°F 80°F 90°F 100°F
R 407C 1.00 1.07 1.14 1.20 1.27 1.34 1.41 1.47 1.54 1.60
© Danfoss A/S ( AC-DSL / SKT), 10 - 2006 DKRCC.PD.AL0.A2.22 / 520H1748 15
Technical leaflet Thermostatic expansion valve, Type TRE10, TRE20, TRE40, and TRE80
Capacity
R134aCapacity in TR for range N and K and opening superheat OS = 7.2°FType andrated capacity Qnom
TR
Pressure drop across valve ∆p psi Pressure drop across valve ∆p psi
40 60 80 100 120 140 160 180 40 60 80 100 120 140 160 180
Evaporating temperature +50°F Evaporating temperature +40°F
TRE10-5NTRE10-7N
5.16.5
5.77.2
6.17.6
6.37.9
6.48.0
6.48.0
6.48.0
6.37.9
4.86.1
5.46.8
5.77.1
5.97.4
5.97.4
5.97.5
5.97.4
5.87.3
TRE20-7NTRE20-9NTRE20-11NTRE20-14N
7.28.6
10.513.7
8.19.6
11.815.3
8.510.212.516.2
8.910.612.916.9
9.010.713.117.0
9.010.713.117.1
9.010.613.016.9
8.910.512.916.8
6.78.09.9
13.0
7.59.0
11.014.4
7.99.5
11.615.2
8.29.8
12.015.6
8.39.9
12.115.8
8.39.9
12.115.8
8.39.8
12.015.7
8.19.7
11.915.5
TRE40-14NTRE40-18NTRE40-21NTRE40-28N
12.716.019.426.2
14.318.021.729.3
15.419.223.531.1
15.819.923.932.1
16.120.224.332.7
16.220.324.432.8
16.120.224.332.7
15.920.024.032.3
11.814.818.024.5
13.216.720.127.2
14.017.621.328.8
14.518.222.029.7
14.718.522.330.0
14.718.522.330.2
14.618.422.230.0
14.418.221.929.7
TRE80-25NTRE80-39NTRE80-56N
25.736.045.1
28.839.851.2
30.642.254.1
31.643.556.3
32.042.356.6
32.144.356.8
32.044.156.7
31.743.656.1
23.733.144.0
26.436.747.4
27.938.750.0
28.739.951.5
29.140.452.2
29.140.452.3
29.040.252.0
28.639.751.4
Evaporating temperature +30°F Evaporating temperature +20°F
TRE10-5NTRE10-7N
4.55.6
5.06.3
5.26.6
5.46.8
5.46.8
5.46.8
5.46.8
5.36.7
4.15.2
4.55.7
4.86.0
4.96.2
4.96.2
4.86.2
4.86.1
4.86.0
TRE20-7NTRE20-9NTRE20-11NTRE20-14N
6.37.59.2
12.1
6.98.3
10.213.3
7.48.7
10.714.1
7.59.0
11.314.5
7.69.0
11.114.6
7.69.0
11.114.5
7.58.9
11.014.4
7.48.8
10.814.2
5.76.88.5
11.2
6.37.69.3
12.3
6.67.99.8
12.9
6.88.1
10.013.2
6.98.1
10.113.3
6.88.1
10.013.2
6.78.09.9
13.1
6.67.99.7
12.8
TRE40-14NTRE40-18NTRE40-21NTRE40-28N
10.713.616.522.6
12.015.118.324.9
12.716.019.326.4
13.116.419.527.1
13.216.620.127.4
13.216.720.127.4
13.116.520.027.2
12.916.319.726.8
9.712.214.920.5
10.713.616.522.6
11.314.317.323.7
11.714.717.824.3
11.714.817.924.5
11.714.817.924.5
11.614.717.824.3
11.414.417.523.9
TRE80-25NTRE80-39NTRE80-56N
21.530.239.5
23.833.443.4
25.135.145.7
25.836.046.9
26.136.447.4
26.136.547.5
25.936.247.2
25.535.746.6
19.227.235.7
21.230.239.2
22.331.441.2
22.932.242.2
23.132.542.6
23.132.442.6
22.932.242.2
22.531.741.6
Evaporating temperature +10°F Evaporating temperature 0°F
TRE10-5NTRE10-7N
3.74.7
4.15.2
4.35.4
4.45.5
4.45.6
4.45.5
4.35.5
4.25.4
3.34.2
3.64.6
3.84.8
3.84.9
3.94.9
3.84.9
3.84.8
3.74.7
TRE20-7NTRE20-9NTRE20-11NTRE20-14N
5.26.27.7
10.2
5.76.88.4
11.1
6.07.18.8
11.6
6.17.39.0
11.8
6.17.39.0
11.9
6.17.28.9
11.8
6.07.18.8
11.7
5.87.08.6
11.4
4.65.56.89.3
5.06.07.59.9
5.36.37.8
10.3
5.46.47.9
10.5
5.46.47.9
10.5
5.36.47.9
10.5
5.26.27.7
10.3
5.16.17.6
10.1
TRE40-14NTRE40-18NTRE40-21NTRE40-28N
8.610.913.218.3
9.512.014.520.1
10.012.615.321.1
10.212.915.721.6
10.313.015.821.7
10.313.015.821.7
10.112.715.621.4
10.012.615.321.1
7.59.5
11.616.1
8.310.512.817.7
8.711.013.418.5
8.811.213.618.8
8.911.313.719.0
8.911.213.618.9
8.711.113.518.6
8.610.913.218.3
TRE80-25NTRE80-39NTRE80-56N
17.024.131.9
18.726.534.9
19.627.736.6
20.128.437.4
20.228.637.7
20.228.537.6
19.928.237.3
19.627.736.7
14.821.228.1
16.223.130.7
17.024.232.1
17.424.732.8
17.524.833.0
17.424.732.8
17.224.432.5
16.924.031.9
Evaporating temperature −10°F Evaporating temperature −20°F
TRE10-5NTRE10-7N
2.93.7
3.24.0
3.34.2
3.44.3
3.44.3
3.34.2
3.34.2
3.24.1
2.53.2
2.73.5
2.83.6
2.93.7
2.93.7
2.83.6
2.83.6
2.73.5
TRE20-7NTRE20-9NTRE20-11NTRE20-14N
4.14.96.08.1
4.45.36.68.7
4.65.56.89.1
4.75.66.99.2
4.75.66.99.2
4.65.56.89.1
4.55.46.79.0
4.45.36.58.7
3.54.25.27.0
3.84.65.77.6
3.94.75.97.8
4.04.85.97.9
4.04.85.97.9
3.94.75.97.8
3.84.65.77.7
3.74.55.67.5
TRE40-14NTRE40-18NTRE40-21NTRE40-28N
6.58.2
10.114.0
7.19.0
11.015.3
7.49.4
11.516.0
7.69.6
11.716.3
7.69.6
11.816.3
7.59.5
11.716.2
7.49.4
11.516.0
7.39.2
11.315.7
5.57.08.6
12.0
6.07.79.3
13.1
6.38.09.8
13.6
6.48.19.9
13.8
6.48.19.9
13.9
6.38.19.9
13.8
6.27.99.7
13.5
6.17.89.5
13.2
TRE80-25NTRE80-39NTRE80-56N
12.818.324.4
14.019.926.6
14.620.827.8
14.921.228.3
14.921.328.4
14.821.228.3
14.620.927.9
14.320.527.4
10.915.620.9
11.817.022.8
12.317.723.7
12.518.024.1
12.618.024.2
12.517.924.0
12.317.623.7
12.017.223.2
16 DKRCC.PD.AL0.A2.22 / 520H1748 © Danfoss A/S (AC-DSL / SKT), 10 - 2006
Technical leaflet Thermostatic expansion valve, Type TRE10, TRE20, TRE40, and TRE80
Capacity
R134aCapacity in TR for range N and K and opening superheat OS = 7.2°FType andrated capacity Qnom
TR
Pressure drop across valve ∆p psi Pressure drop across valve ∆p psi
40 60 80 100 120 140 160 180 40 60 80 100 120 140 160 180
Evaporating temperature -30°F Evaporating temperature -40°F
TRE10-5NTRE10-7N
2.12.8
2.33.0
2.43.1
2.43.1
2.43.1
2.43.1
2.33.0
2.32.9
1.82.3
1.92.5
2.02.6
2.02.6
2.02.6
2.02.6
1.92.5
1.92.4
TRE20-7NTRE20-9NTRE20-11NTRE20-14N
3.03.64.56.0
3.23.94.86.5
3.34.05.06.7
3.44.05.06.8
3.34.05.06.7
3.34.04.96.6
3.23.94.86.5
3.13.84.76.3
2.53.03.85.1
2.73.24.15.4
2.83.34.25.6
2.83.44.25.7
2.83.34.25.6
2.73.34.15.5
2.73.24.05.4
2.63.13.95.2
TRE40-14NTRE40-18NTRE40-21NTRE40-28N
4.65.97.2
10.1
5.06.47.9
11.0
5.26.78.2
11.5
5.36.88.3
11.6
5.36.88.3
11.6
5.36.78.2
11.5
5.26.68.1
11.3
5.06.47.9
11.0
3.84.96.08.5
4.25.36.59.2
4.35.56.89.5
4.45.66.99.6
4.45.66.89.6
4.35.56.89.5
4.25.46.69.3
4.15.36.49.1
TRE80-25NTRE80-39NTRE80-56N
9.113.117.7
9.914.319.2
10.314.820.0
10.515.120.3
10.515.120.3
10.414.920.1
10.214.719.8
9.914.319.4
7.610.914.8
8.211.816.0
8.512.316.6
8.612.416.8
8.612.416.8
8.512.316.7
8.312.116.4
8.111.815.9
Correction factors for subcooling ∆tsub
∆tu 10°F 20°F 30°F 40°F 50°F 60°F 70°F 80°F 90°F 100°F
R 134a 1.00 1.08 1.13 1.19 1.25 1.31 1.37 1.42 1.48 1.54
© Danfoss A/S ( AC-DSL / SKT), 10 - 2006 DKRCC.PD.AL0.A2.22 / 520H1748 17
Technical leaflet Thermostatic expansion valve, Type TRE10, TRE20, TRE40, and TRE80
Capacity
R404ACapacity in TR for range N and K and opening superheat OS = 7.2°FType andrated capacity Qnom
TR
Pressure drop across valve ∆p psi Pressure drop across valve ∆p psi
50 90 130 170 210 250 290 330 50 90 130 170 210 250 290 330
Evaporating temperature +50°F Evaporating temperature +40°F
TRE10- 8STRE10-8S
5.46.7
6.37.8
6.58.1
6.58.1
6.27.8
5.97.3
5.46.7
4.96.1
5.36.6
6.17.6
6.27.9
6.37.8
6.07.5
5.67.0
5.26.5
4.75.9
TRE20-8STRE20-10STRE20-12STRE20-16S
7.38.7
10.613.6
8.410.012.215.8
8.810.412.716.4
8.710.312.616.2
8.49.9
12.115.6
7.99.3
11.414.7
7.38.6
10.513.6
6.67.89.5
12.3
7.08.4
10.313.2
8.19.6
11.815.3
8.410.012.215.8
8.39.9
12.115.7
8.09.5
11.615.0
7.58.9
10.914.1
7.08.2
10.113.0
6.37.49.1
11.8
TRE40-20STRE40-25STRE40-30STRE40-40S
13.817.220.727.6
16.120.124.331.7
16.720.825.033.1
16.620.724.832.8
15.919.923.831.6
15.018.722.529.8
13.817.020.727.6
12.515.718.825.0
13.316.620.127.0
15.419.223.130.7
16.020.024.032.0
15.819.823.731.6
15.219.022.830.4
14.317.921.628.6
13.216.519.826.5
11.914.918.024.0
TRE80-40STRE80-55STRE80-70S
27.938.248.9
32.443.955.2
33.445.557.2
33.144.956.7
31.643.254.6
29.940.751.4
27.637.647.6
25.034.143.3
27.136.946.3
30.842.253.4
31.942.155.2
31.543.054.5
30.241.352.3
28.438.849.3
26.235.945.7
23.732.541.6
Evaporating temperature +30°F Evaporating temperature +20°F
TRE10-8STRE10-8S
5.16.3
5.87.3
6.17.5
5.97.4
5.77.1
5.36.7
4.96.2
4.55.5
4.96.2
5.56.9
5.77.1
5.67.0
5.36.7
5.06.3
4.65.8
4.15.2
TRE20-8STRE20-10STRE20-12STRE20-16S
6.78.09.8
12.7
7.79.1
11.214.7
8.09.5
11.615.0
7.89.3
11.414.8
7.58.9
10.914.2
7.08.4
10.313.4
6.57.79.5
12.3
5.87.08.6
11.3
6.37.59.3
12.1
7.28.6
10.513.7
7.48.8
10.814.1
7.38.6
10.613.9
6.98.3
10.213.2
6.57.79.5
12.4
6.07.18.7
11.4
5.46.47.9
10.3
TRE40-20STRE40-25STRE40-30STRE40-40S
12.615.819.325.9
14.518.222.029.5
15.018.822.730.4
14.818.622.430.0
14.217.821.528.8
13.316.720.227.1
12.315.418.625.0
11.114.016.922.7
11.814.818.124.5
13.517.020.527.7
13.917.521.128.5
13.717.220.827.9
13.116.519.926.8
12.315.418.625.2
11.314.217.223.2
10.212.815.521.0
TRE80-40STRE80-55STRE80-70S
25.535.144.3
29.040.051.0
29.941.152.5
29.442.151.7
28.238.849.7
26.536.446.8
24.433.643.3
22.130.539.3
23.833.143.7
26.937.348.0
27.738.249.2
27.137.548.4
25.935.946.4
24.333.743.5
22.431.040.2
20.228.136.5
Evaporating temperature +10°F Evaporating temperature 0°F
TRE10-8STRE10-8S
4.65.7
5.16.5
5.36.6
5.16.5
4.96.2
4.65.8
4.25.3
3.84.8
4.25.3
4.76.0
4.86.1
4.75.9
4.45.6
4.25.2
3.84.8
3.44.3
TRE20-8STRE20-10STRE20-12STRE20-16S
5.87.08.6
11.3
6.67.99.7
12.7
6.88.09.9
13.0
6.67.99.7
12.8
6.37.59.3
12.2
5.97.08.7
11.4
5.46.47.9
10.4
4.95.87.29.4
5.36.37.9
10.4
6.07.18.8
11.7
6.17.39.0
11.8
6.07.18.8
11.5
5.76.88.3
11.0
5.36.37.8
10.2
4.85.77.19.4
4.35.26.48.4
TRE40-20STRE40-25STRE40-30STRE40-40S
10.913.916.822.9
12.415.619.025.6
12.616.019.426.0
12.515.719.025.8
11.915.018.124.6
11.114.017.023.0
10.212.915.621.2
9.211.614.119.2
9.912.615.321.0
11.214.217.223.4
11.514.517.523.9
11.214.117.123.4
10.713.416.322.2
9.912.515.220.8
9.111.513.919.1
8.210.312.617.2
TRE80-40STRE80-55STRE80-70S
21.930.639.9
24.634.344.5
25.235.045.5
24.734.344.6
23.532.842.6
22.130.739.9
20.228.236.8
18.225.533.3
19.828.036.7
22.231.140.6
22.731.741.4
22.131.040.5
21.029.538.6
19.627.536.1
18.025.333.2
16.222.830.0
Evaporating temperature -10°F Evaporating temperature -20°F
TRE10-8STRE10-8S
3.84.9
4.25.4
4.35.5
4.25.4
4.05.0
3.74.7
3.44.3
3.03.8
3.44.4
3.84.8
3.84.9
3.74.7
3.54.5
3.24.1
2.93.7
2.63.4
TRE20-8STRE20-10STRE20-12STRE20-16S
4.85.77.19.4
5.36.47.9
10.4
5.46.58.0
10.5
5.36.37.8
10.2
5.06.07.49.7
4.75.66.99.0
4.25.16.38.2
3.84.55.67.3
4.35.16.38.4
4.75.67.09.3
4.85.77.19.4
4.65.56.99.1
4.35.26.58.6
4.04.86.07.9
3.74.45.47.2
3.33.94.96.5
TRE40-20STRE40-25STRE40-30STRE40-40S
8.911.313.819.0
10.012.615.421.0
10.212.915.621.4
9.812.515.220.9
9.411.914.419.8
8.711.013.418.4
8.010.112.316.9
7.19.0
11.015.2
7.910.012.317.0
8.811.113.718.7
8.911.213.718.9
8.610.913.318.4
8.210.312.617.4
7.69.6
11.616.1
6.98.7
10.614.7
6.27.89.5
13.2
TRE80-40STRE80-55STRE80-70S
17.825.233.2
19.827.936.7
20.128.237.2
19.627.536.3
18.526.134.5
17.224.332.1
15.822.329.4
14.120.026.5
15.722.429.4
17.424.632.3
17.624.932.6
17.124.131.7
16.122.929.9
15.021.227.8
13.619.325.3
12.217.322.6
18 DKRCC.PD.AL0.A2.22 / 520H1748 © Danfoss A/S (AC-DSL / SKT), 10 - 2006
Technical leaflet Thermostatic expansion valve, Type TRE10, TRE20, TRE40, and TRE80
Capacity
R404ACapacity in TR for range N and K and opening superheat OS = 7.2°FType andrated capacity Qnom
TR
Pressure drop across valve ∆p psi Pressure drop across valve ∆p psi
50 90 130 170 210 250 290 330 50 90 130 170 210 250 290 330
Evaporating temperature -30°F Evaporating temperature -40°F
TRE10-8STRE10-8S
3.13.9
3.44.3
3.44.3
3.24.1
3.03.9
2.83.6
2.53.2
2.32.9
2.63.4
2.93.7
2.93.7
2.83.6
2.63.3
2.43.1
2.12.8
1.92.4
TRE20-8STRE20-10STRE20-12STRE20-16S
3.74.55.67.4
4.14.96.18.1
4.14.96.18.2
4.04.85.97.9
3.74.55.67.4
3.44.15.16.8
3.13.74.66.2
2.73.34.15.5
3.23.44.86.4
3.54.25.27.0
3.54.25.37.0
3.44.15.16.8
3.23.84.76.3
2.93.54.35.8
2.63.13.95.2
2.32.83.54.6
TRE40-20STRE40-25STRE40-30STRE40-40S
6.98.8
10.714.9
7.69.7
11.816.4
7.79.8
11.916.5
7.49.4
11.515.9
7.08.9
10.915.0
6.58.2
10.013.9
5.97.49.1
12.6
5.26.68.1
11.3
6.07.59.3
12.9
6.58.3
10.214.1
6.68.3
10.214.2
6.38.09.8
13.7
5.97.59.2
12.8
5.46.98.5
11.8
4.96.37.7
10.7
4.45.56.89.5
TRE80-40STRE80-55STRE80-70S
13.719.526.1
15.121.528.5
15.221.628.8
14.720.927.8
13.819.726.3
12.818.224.4
11.616.622.1
10.314.819.8
11.816.922.6
13.018.424.7
13.018.524.8
12.517.823.9
11.716.822.5
10.815.420.7
9.714.018.8
8.612.416.7
Correction factors for subcooling ∆tsub
∆tu 10°F 20°F 30°F 40°F 50°F 60°F 70°F 80°F 90°F 100°F
R 404A 1.00 1.10 1.20 1.29 1.37 1.46 1.54 1.63 1.70 1.78
© Danfoss A/S ( AC-DSL / SKT), 10 - 2006 DKRCC.PD.AL0.A2.22 / 520H1748 19
Technical leaflet Thermostatic expansion valve, Type TRE10, TRE20, TRE40, and TRE80
Capacity
R507Capacity in TR for range N and K and opening superheat OS = 7.2°FType andrated capacity Qnom
TR
Pressure drop across valve ∆p psi Pressure drop across valve ∆p psi
40 70 100 130 160 190 220 250 40 70 100 130 160 190 220 250
Evaporating temperature +50°F Evaporating temperature +40°F
TRE10-8STRE10-8S
5.87.2
6.88.4
7.28.8
7.28.9
7.18.7
6.88.4
6.37.9
5.87.2
5.67.0
6.68.1
6.98.6
6.98.6
6.88.4
6.58.1
6.17.6
5.67.0
TRE20-8STRE20-10STRE20-12STRE20-16S
7.89.2
11.314.6
9.210.813.217.1
9.711.514.018.1
9.811.614.118.2
9.611.313.817.8
9.110.813.217.0
8.610.112.316.0
7.89.3
11.314.6
7.68.9
11.014.3
8.810.412.816.6
9.311.013.217.4
9.311.013.517.5
9.110.813.217.1
8.710.312.616.3
8.29.7
11.815.4
7.58.9
10.814.1
TRE40-20STRE40-25STRE40-30STRE40-40S
14.718.321.928.9
17.221.425.733.8
18.322.827.235.7
18.522.927.436.1
18.122.526.835.4
17.321.525.733.9
16.220.224.131.9
14.918.522.129.2
14.117.721.228.2
16.420.624.432.7
17.421.726.034.4
17.521.826.134.6
17.221.425.733.9
16.420.424.532.5
15.419.223.030.6
14.217.721.228.2
TRE80-40STRE80-55STRE80-70S
29.740.451.2
34.947.058.7
36.749.561.8
37.049.862.3
36.248.861.1
34.646.758.7
32.443.855.1
29.640.150.7
28.539.048.5
33.245.156.8
34.947.359.6
35.047.459.8
34.546.458.6
32.744.456.3
30.741.853.0
28.238.448.9
Evaporating temperature +30°F Evaporating temperature +20°F
TRE10-8STRE10-8S
5.46.8
6.37.8
6.68.2
6.68.1
6.48.0
6.17.6
5.87.2
5.36.6
5.26.5
5.97.4
6.27.7
6.27.7
6.07.5
5.77.1
5.46.7
4.96.2
TRE20-8STRE20-10STRE20-12STRE20-16S
7.28.6
10.513.7
8.39.9
12.115.8
8.710.412.916.5
8.710.412.716.5
8.510.112.416.1
8.19.7
11.815.4
7.69.1
11.114.5
7.08.3
10.213.4
6.88.19.9
13.0
7.89.3
11.414.9
8.19.7
11.815.5
8.19.6
11.815.4
7.99.4
11.514.9
7.58.9
10.914.4
7.08.4
10.313.5
6.57.79.4
12.4
TRE40-20STRE40-25STRE40-30STRE40-40S
13.416.820.327.0
15.719.623.731.2
16.420.424.532.7
16.420.524.632.8
16.020.024.032.0
15.319.123.030.7
14.417.921.628.9
13.316.519.926.6
12.615.819.125.7
14.518.221.929.6
15.219.022.830.6
15.219.022.830.6
14.818.522.229.8
14.117.621.228.5
13.216.519.926.8
12.215.218.424.8
TRE80-40STRE80-55STRE80-70S
26.937.247.3
31.242.754.1
32.644.556.5
32.744.656.7
31.943.655.4
30.441.653.2
28.539.150.1
26.336.146.3
25.335.044.9
29.039.951.0
30.141.453.0
30.141.353.0
29.240.251.7
28.038.549.5
26.236.246.6
24.133.443.1
Evaporating temperature +10°F Evaporating temperature 0°F
TRE10-8STRE10-8S
4.96.1
5.66.9
5.77.2
5.77.1
5.56.9
5.36.6
4.96.2
4.55.7
4.55.7
5.16.4
5.36.6
5.26.5
5.06.3
4.86.0
4.55.6
4.15.2
TRE20-8STRE20-10STRE20-12STRE20-16S
6.37.59.3
12.2
7.28.6
10.513.8
7.48.9
10.914.3
7.48.8
10.814.2
7.28.5
10.513.8
6.88.1
10.013.2
6.47.69.3
12.3
5.87.08.6
11.4
5.86.98.5
11.1
6.57.89.6
12.7
6.78.09.9
13.0
6.77.99.8
12.9
6.47.79.4
12.5
6.17.39.0
11.9
5.76.88.4
11.1
5.26.27.7
10.2
TRE40-20STRE40-25STRE40-30STRE40-40S
11.714.717.824.0
13.416.720.227.3
13.917.421.028.2
13.817.320.928.1
13.416.820.327.4
12.816.019.326.1
12.015.018.124.5
11.013.816.722.6
10.713.316.322.2
12.115.218.424.9
12.515.619.025.7
12.415.618.825.5
12.015.118.224.7
11.414.317.323.6
10.713.416.222.1
9.812.314.920.4
TRE80-40STRE80-55STRE80-70S
23.432.742.0
26.636.747.3
27.538.048.9
27.337.848.8
26.536.747.5
25.235.045.4
23.732.942.7
21.830.339.5
21.329.838.8
24.033.443.4
24.734.644.7
24.534.144.4
23.733.043.1
22.531.541.1
21.129.538.6
19.427.235.6
Evaporating temperature -10°F Evaporating temperature -20°F
TRE10 - 8STRE10-8S
4.25.3
4.65.9
4.86.0
4.75.9
4.55.7
4.35.4
4.05.0
3.64.6
3.84.8
4.25.3
4.25.4
4.15.3
4.05.1
3.84.8
3.54.4
3.24.1
TRE20-8STRE20-10STRE20-12STRE20-16S
5.26.27.7
10.3
5.97.08.6
11.5
6.07.28.8
11.7
5.97.18.7
11.6
5.76.88.4
11.2
5.46.48.0
10.6
5.06.07.49.8
4.65.56.89.0
4.75.66.99.2
5.26.27.7
10.2
5.36.37.8
10.4
5.26.27.7
10.2
5.05.97.49.8
4.75.66.99.3
4.35.26.48.6
4.04.75.97.9
TRE40-20STRE40-25STRE40-30STRE40-40S
9.612.114.720.1
10.813.616.522.5
11.014.016.923.1
11.013.816.722.9
10.613.316.222.1
10.112.615.321.0
9.311.814.319.6
8.610.813.118.0
8.510.813.118.0
9.512.014.620.0
9.812.314.920.5
9.612.114.720.1
9.211.614.119.4
8.711.013.418.4
8.110.212.517.1
7.49.4
11.415.7
TRE80-40STRE80-55STRE80-70S
19.226.935.3
21.430.039.3
22.030.740.2
21.730.439.8
20.929.338.6
19.827.936.7
18.526.134.4
17.024.031.7
17.024.031.6
18.926.535.0
19.227.135.7
18.926.735.2
18.225.734.0
17.224.332.3
16.122.730.1
14.720.827.7
20 DKRCC.PD.AL0.A2.22 / 520H1748 © Danfoss A/S (AC-DSL / SKT), 10 - 2006
Technical leaflet Thermostatic expansion valve, Type TRE10, TRE20, TRE40, and TRE80
Capacity
R507Capacity in TR for range N and K and opening superheat OS = 7.2°FType andrated capacity Qnom
TR
Pressure drop across valve ∆p psi Pressure drop across valve ∆p psi
40 70 100 130 160 190 220 250 40 70 100 130 160 190 220 250
Evaporating temperature -30°F Evaporating temperature -40°F
TRE10-8STRE10-8S
3.34.3
3.74.7
3.74.7
3.64.6
3.54.4
3.34.2
3.03.8
2.73.5
2.93.7
3.24.1
3.24.1
3.14.0
3.03.8
2.83.6
2.63.3
2.33.0
TRE20-8STRE20-10STRE20-12STRE20-16S
4.14.96.18.2
4.55.46.79.0
4.65.56.89.1
4.55.46.68.9
4.35.16.48.5
4.04.86.08.0
3.74.55.57.4
3.44.15.06.8
3.54.25.37.1
3.94.75.87.8
3.94.75.87.8
3.84.65.77.7
3.64.45.47.3
3.44.15.16.8
3.13.84.76.3
2.83.44.35.7
TRE40-20STRE40-25STRE40-30STRE40-40S
7.59.5
11.615.9
8.310.512.817.6
8.410.713.017.9
8.310.412.717.5
7.910.012.216.8
7.59.4
11.515.9
6.98.8
10.714.8
6.38.09.8
13.5
6.58.2
10.013.9
7.19.0
11.015.2
7.29.1
11.115.4
7.08.9
10.915.1
6.78.5
10.414.4
6.38.09.8
13.5
5.87.49.0
12.6
5.36.78.2
11.4
TRE80-40STRE80-55STRE80-70S
14.921.128.0
16.423.230.7
16.723.631.3
16.323.130.8
15.722.229.6
14.821.027.9
13.719.526.1
12.517.923.9
12.818.324.4
14.120.026.6
14.220.227.0
13.919.826.5
13.318.925.4
12.517.823.9
11.616.522.2
10.515.120.3
Correction factors for subcooling ∆tsub
∆tu 10°F 20°F 30°F 40°F 50°F 60°F 70°F 80°F 90°F 100°F
R 507 1.00 1.11 1.21 1.32 1.42 1.53 1.63 1.73 1.84 1.94
© Danfoss A/S ( AC-DSL / SKT), 10 - 2006 DKRCC.PD.AL0.A2.22 / 520H1748 21
Technical leaflet Thermostatic expansion valve, Type TRE10, TRE20, TRE40, and TRE80
Fig. 4. TRE
Dimensions and weight
Type
Connection, ODF solder Capillary tubelength
H1 H2 H3 H4 L1 L2 L3 L4 øD1 øD2 WeightInlet × Outlet Inlet × Outlet
in. mm ft in in in in in in in in in in lbs
TRE10
1/2 ×1/2 12 × 12
4.92 1.26 0.30 0.20
1.591.59
1.36 2.76 1.77 0.59
1/2 ×5/8 12 × 16 1.79
5/8 ×1/2 16 × 12 4.09
1.79
1.59 0.865/8
×5/8 16 × 16 1.795/8
×7/8 16 × 22 3.231) 2.03 0.771)
7/8 ×7/8 22 × 22
2.032.03
7/8 ×1 1/8 22 × 28 2.31
TRE20
5/8 ×5/8 16 × 16
4.92 1.46 0.35 0.31
1.891.89
1.50 4.69 2.09 0.65
5/8 ×7/8 16 × 22 2.13
7/8 ×7/8 22 × 22 4.80
2.13
2.13 1.327/8
×11/8 22 × 28 2.407/8
×1 3/8 22 × 35 3.941) 2.80
11/8 ×7/8 28 × 22
2.40
2.13 1.231)
11/8 ×11/8 28 × 28 2.40
11/8 ×13/8 28 × 35 2.80
TRE40
7/8 ×7/8 22 × 22
11.76 1.65 0.51 0.43
2.26
2.26
1.61 4.37 2.36 0.80
7/8 ×1 1/8 22 × 28 2.54
7/8 ×1 3/8 22 × 35 5.71 2.93 1.74
11/8 ×11/8 28 × 28 5.04
2.54
2.54 2.051)
11/8 ×13/8 28 × 35 2.93
11/8 ×15/8 28 × 42 3.25
TRE80
11/8 ×11/8 28 × 28
11.76 1.85 0.67 0.51
2.64
2.64
1.73 5.83 2.83 0.80
11/8 ×13/8 28 × 35 6.50 3.03 2.95
11/8 ×15/8 28 × 42 5.83 3.35 2.871)
13/8 ×13/8 35 × 35
3.033.03
13/8 ×15/8 35 × 42 3.35
1) Fixed setting
22 DKRCC.PD.AL0.A2.22 / 520H1748 © Danfoss A/S (AC-DSL / SKT), 10 - 2006
Technical leaflet Thermostatic expansion valve, Type TRE10, TRE20, TRE40, and TRE80
© Danfoss A/S ( AC-DSL / SKT), 10 - 2006 DKRCC.PD.AL0.A2.22 / 520H1748 23
Technical leaflet Thermostatic expansion valve, Type TRE10, TRE20, TRE40, and TRE80
24 DKRCC.PD.AL0.A2.22 / 520H1748 © Danfoss A/S (AC-DSL / SKT), 10 - 2006
Technical leaflet Thermostatic expansion valve, Type TRE10, TRE20, TRE40, and TRE80
Recommended