Shut-Off Butterfly Valves 2 0 En

8/11/2019 Shut-Off Butterfly Valves 2 0 En

1/12www.belimo.com P5-Shut-off and buttery valves en v2.0 09.2010 Subject to changes 1 / 8

Notes for project planning

Shut-off and buttery valves foropen-close applications and control mode

Table of contents

Introduction 2Shut-off and butterfly valves for open-close applications

Project planning, design and dimensioning 4

Butterfly valves for control modeProject planning, design and dimensioning 6

I II III

M MM


2/122 / 8 P5-Shut-off and buttery valves en v2.0 09.2010 Subject to changes www.belimo.com

Notes for project planning Introduction

Introduction

Open-colose applications Energy savings and the reduction of the leakage losses will become ever more important inthe future. The generation outputs of boilers or chilling systems are divided up into dif ferentperformance level categories. Depending on the decline in pressure, the generators will then beswitched either on or off. The generators will be blocked in order to minimise performance loss.The leakage rate (shut-off seat) shall be kept as low as possible. The pressure loss shall alsobe low with the faucet opened completely. These are prerequisites for minimising the electricalperformance of the pumps and thus for lowering operating costs.

Typical applications

I II III

M MM M

M

M

M

Boiler sequence system

Open heat exchanger

M

p



Notes for project planning Introduction

Detail 4

1-part stemWafer type und Lug type:

DN 50 to 350

2-part stemWafer type:DN 25 to 40

Introduction (Continued)

Valves and actuators product range Fig. Lug typeshut-off valve with worm

gear

Fig. Lug typebuttery valve withSR..A-5 actuator

Fig. Wafer typebuttery valve with

SY.. actuator

Installation of the shut-off and buttery valves in open systems

The tting of a siphon is recommended for the purposeof achieving the maximum service life of the buttery

valve (the seat should be in the water on both sides) andalso in order to be able to ensure that it is leak-proof.

Fig. Lug type (with threads)Fig. Wafer type (with clips)Body of the shut-off and buttery valves

Fig. Wafer typeshut-off valve with

lever

1 Spheroidal cast iron housing (GGG 40)2 Stainless stem, controlled in RPTFE bush

bearing3 EPDM seat primary seal

(leak-proof pursuant to EN 12266-1)4 EPDM seat secondary seal, seals against

the exterior5 EPDM O-ring tertiary seal

against exterior contamination6 Stainless valve disc7 Flange in accordance with ISO 52118 Stainless spindle safety device9 Dowel (for backlash-free rotation

of the valve cone)



Project planning

Relevant information The data, information and limit values listed on the data sheets and mounting instructions A6..and D6.. are to be taken into account and/or complied with, respectively.

Pipeline clearances The minimum clearances between the pipelines and the walls and ceilings required for projectplanning depend not only on the valve size but also on the selected actuator.

Design and dimensioning

General information The valves can be used when the following values for open-close applications are complied with: The maximum flow speed of 4 m/s may not be exceeded in the valve. The valve is to be selected in such a way that the nominal pipe width corresponds to =

nominal damper width and the pressure drop off is kept as low as possible.

Closing pressure shut-off valves A6.. The maximum permissible closing pressure is 1200 kPa.

Flow rate shut-off valves A6..H / A6..SA6..HL / A6..SL

Shut-off valve Differential pressure pv100

Type DN[mm]

kvmax[m3/h]

Zeta-Wert

0,01[kPa]

0,1[kPa]

1[kPa]

2[kPa]

3[kPa]

A625H 25 45 0.32 0.45 1.42 4.50 6.36

Flow

100[m3/h]

A632H 32 55 0.55 0.55 1.74 5.50 7.78A640H 40 70 0.83 0.70 2.21 7.00 9.90 12.1A650H(L) 50 90 1.23 0.90 2.8 9.0 12.7 15.6A665H(L) 65 180 0.88 1.80 5.7 18.0 25.5A680H(L) 80 300 0.73 3.0 9.5 30 42A6100H(L) 100 580 0.47 5.8 18.3 58 82A6125H(L) 125 820 0.58 8.2 26 82A6150H(L) 150 1600 0.32 16 51 160A6125S(L) 125 820 0.58 8.2 26 82A6150S(L) 150 1600 0.32 16 51 160A6200S(L) 200 2900 0.3 29 92 290A6250S(L) 250 4400 0.32 44 139 440A6300S(L) 300 7300 0.24 73 231 730

A6350S(L) 350 10900 0.2 109 345 1090

Closing pressure buttery valves D6..ND6..NL

Buttery valve Actuators

SRF SR..A GR..A DGR..A DR.. SY1 SY2 SY3 SY4 SY5

Type DN[mm]

kvmax[m3/h]

ps[kPa]

ps[kPa]

ps[kPa]

ps[kPa]

ps[kPa]

ps[kPa]

ps[kPa]

ps[kPa]

ps[kPa]

ps[kPa]

D625N 25 45 1200 1200 1200D632N 32 55 1200 1200 1200D640N 40 70 1200 1200 1200D650N(L) 50 90 1200 1200 1200D665N(L) 65 180 1200 1200 1200D680N(L) 80 300 1200 1200 1200D6100N(L) 100 580 200 200 1200 1) 1200D6125N(L) 125 820 600 2) 1200 1200 1200D6150N(L) 150 1600 600 1200 1200D6200N(L) 200 2900 1200D6250N(L) 250 4400 1200D6300N(L) 300 7300 600 1200D6350N(L) 350 10900 600

1)GR..A-52)GR..A-7

Notes for project planning Shut-off and buttery valves for open-close applications

Denition psClosing pressure at which the actuator can stillseal the valve tightly allowing for the appropriateleakage rate.

Denitions kvmaxand The ow rate of kvmaxwill ensue when the valve isfully open (90).Zeta is the coefcient for the pressure lossthrough the fully opened valve (90).



Notes for project planning Shut-off and buttery valves for open-close applications

Design and dimensioning (Continued)

Flow rate buttery valves D6..ND6..NL

Buttery valve Differential pressure pv100

Type DN[mm]

kvmax[m3/h]

0,01[kPa]

0,1[kPa]

1[kPa]

2[kPa]

3[kPa]

D625N 25 45 0.45 1.42 4.50 6.36

Flow

100[m3/h]

D632N 32 55 0.55 1.74 5.50 7.78D640N 40 70 0.70 2.21 7.00 9.90 12.1D650N(L) 50 90 0.90 2.8 9.0 12.7 15.6D665N(L) 65 180 1.80 5.7 18.0 25.5D680N(L) 80 300 3.0 9.5 30 42D6100N(L) 100 580 5.8 18.3 58 82D6125N(L) 125 820 8.2 26 82D6150N(L) 150 1600 16 51 160D6200N(L) 200 2900 29 92 290D6250N(L) 250 4400 44 139 440D6300N(L) 300 7300 73 231 730D6350N(L) 350 10900 109 345 1090

Pressure drop

0.1

0.

01

0.

02

0.

03

0.

04

0.

05

0.

06

0.

08

0.2

0.3

0.4

0.5

0.6

1

0.8

1.5

2

3

4

5

6

10

8

20

30

40

50

60

100

80

200

300

400

500

600

1000

800

0.

1

0.2

0.3

0.40.50.6

0.81 2 3 4 5 6 8

10

0.03

0.06

0.08

0.11

0.140.17

0.28

0.22

0.56

0.83

1.1

1.41.7

2.8

2.2

5.6

8.3

11

1417

28

22

56

83

110

140170

280

2201)

100[l/s]

pv100[kPa]

0.0

001

0.0

002

0.0

003

0.0

004

0.0

005

0.0

006

0.0

008

0.0

01

0.0

02

0.0

03

0.0

04

0.0

05

0.0

06

0.0

08

0.0

1

0.0

2

0.0

3

0.0

4

0.0

5

0.0

6

0.0

8

0.1

pv100[bar]

100[m

/h]

DNk

vmax

350

1090

0

250

4400

125

820

100

580

6518

0

5090

300

7300

200

2900

150

1600

8030

0

4070

3255

2545

1)

1)

Denitions kvmaxand The ow rate of kvmaxwill ensue when the valve isfully open (90).Zeta is the coefcient for the pressure lossthrough the fully opened valve (90).

Legendpv100 Differential pressure with valve

completely open100 Nominal flow rate with pv100

pv1001) The maximum speed in the butterfly

valves is 4 m/s

Formula

=pv100

100

100

kvmax

2

pv100 [kPa]100 [m3/h]kvmax [m3/h]


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Notes for project planning Buttery valves for control mode

6 / 8 P5-Shut-off and buttery valves en v2.0 09.2010 Subject to changes www.belimo.com

Project planning

Relevant information The data, information and limit values listed on the data sheets and mounting instructions D6..are to be taken into account and/or complied with, respectively.

Pipeline clearances The minimum clearances between the pipelines and the walls and ceilings required for projectplanning depend not only on the valve size but also on the selected actuator.

Design and dimensioning

General information Buttery valves can be used in control mode when the following values are complied with: The maximum flow speed of 4 m/s may not be exceeded in the butterfly valve. The butterfly valve is to be designed in such a way that the nominal pipe width corresponds to

nominal butterfly valve width. The narrowing of the pipe must be designed in such a way thereby

as to ensure optimum flow in order to ensure that the pressure drop is kept as low as possible.

Technical data for control mode Differential pressure pv0: 0,3Rangeability: >30

The S-shaped characteristic curve of the D6..N(L) buttery valve (BFV) does not correspondto the equal percentage characteristic curve pursuant to VDI 2176. It is only in the angle ofrotation range between 0 and 54 that one can speak of an approximately equal percentagecharacteristic curve. For an opening angle of 54, the kvscorresponds to approx. 35 percent ofthe kvmaxvalue for a 90 opening angle.

S-shaped characteristic curve

0 18 36 54 72

kv/kvmax

100%

50%

0%

90

kvs 35%

Scaled characteristic curve range

10%

10%

0%

0% 100%

100%

0%

54

kv/kvs

The kvs@ 54 listed in the differential pressure table deviates from the usual tolerance (10%) forsome nominal widths. The equivalence factor of the equal percentage characteristic curve is ~2.5.

Flowr

ate

Opening angle

S-shapedcharacteristic curvee.g. D6300N

Theoreticallyequal-percentagecharacteristic curve

Deviation >10%

Deviation >10%

Denitions kvmaxund kvsThe ow rate of kvmaxwill ensue when the disc isfully open (90).The kvs value refers to the ow rate at 54opening angle, 1 bar pressure loss and medium

temperature: 5C ... 40C.

S-shapedcharacteristic curvee.g. D650N


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Notes for project planning Buttery valves for control mode

www.belimo.com P5-Shut-off and buttery valves en v2.0 09.2010 Subject to changes 7 / 8

Design and dimensioning (Continued)

Because of this fact, there is no conguration option available with the modulating actuators oflimiting the angle of rotation range from 0 to 54.The angle of rotation range required can be adjusted accordingly afterwards with the MF andMP types using the PC-Tool MFT-P, Version 3.3.

The differential pressure pv@54 (Marked in grey in the table Flow rate) may not be

exceeded. This will ensure that the maximum permissible medium speed of 4 m/s is maintained.Depending on the nominal width, the closing angle lies between 7 and 16.

Flow rate Buttery valve

Type DN[mm]

kvs@54[m3/h]

@54[m3/h]

pv@54[kPa]

Initial ow angle

D625N 25 16 2.7 2.9 ~16D632N 32 19 4.3 5.0 ~16D640N 40 25 6.4 6.8 ~13D650N(L) 50 32 9 8.2 ~13D665N(L) 65 63 16 6.6 ~13D680N(L) 80 105 24 5.1 ~13D6100N(L) 100 203 45 4.8 ~10D6125N(L) 125 287 65 5.1 ~10D6150N(L) 150 560 105 3.5 ~10D6200N(L) 200 1015 180 3.1 ~7D6250N(L) 250 1540 281 3.3 ~7D6300N(L) 300 2555 416 2.6 ~7D6350N(L) 350 3815 511 1.8 ~7

Closing pressure Buttery valve Actuators

SR..A SR..P GR..A DGR..A DR.. SY2 SY3 SY4 SY5

Type DN[mm]

ps[kPa]

ps[kPa]

ps[kPa]

ps[kPa]

ps[kPa]

ps[kPa]

ps[kPa]

ps[kPa]

ps[kPa]

D625N 25 1200 1200D632N 32 1200 1200D640N 40 1200 1200D650N(L) 50 1200 1200D665N(L) 65 1200 1200D680N(L) 80 1200 1200D6100N(L) 100 200 1200 1)

D6125N(L) 125 600 2) 1200 1200 1200D6150N(L) 150 600 1200 1200D6200N(L) 200 1200D6250N(L) 250 1200D6300N(L) 300 600 1200D6350N(L) 350 600

1)

GR..A-52)GR..A-7

FormulaThe effective volumetric ow calculated foropening angle is:

@ = kvs@ pv@

100

100@ [m3/h]kvs@ [m3/h]p@ [kPa]

Denition psClosing pressure at which the actuator can stillseal the valve tightly allowing for the appropriateleakage rate.


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Shut-Off Butterfly Valves 2 0 En