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Technical Manual 3/03 Page 26
STR
AU
B-G
RIP
4. STRAUB-GRIP
4.1 STRAUB-GRIP-L
Joins any metal pipe, with pull-out resistance up to 46 bar / 670 psi STRAUB-GRIP-L is the ideal pipe jointfor shipbuilding, water and waste water treatment plants, industrial process pipework and many otherapplications. Whether pressure or suction lines, all piping systems are installed quickly, safely andeconomically with STRAUB-GRIP-L.
Metricw Working pressure up to 46 barw Outside diameters 26.9 up to 609.6 mmw Temperature range -20°C up to +80°Cw 100% Stainless Steel Constructionw Example for order:
STRAUB-GRIP-L 273.0, EPDM, ES
Fast ferry „Corsaire 6000“STRAUB-GRIP-L at CuNiFe sea water system
On average 3’000 couplings per shipin diameters 48.3 - 219.1 mm/11/2“ - 8“:
Weight savings in comparison toflange: 24 Tons
Weight savings in comparison toother couplings: 2.1 Tons
Benefits:
- More payload- Lower transport costs- Easy fitting
Imperialw Working pressure up to 670 psiw Outside diameters 3/4 up to 24 inchw Temperature range -4°F up to +176°Fw 100% Stainless Steel Constructionw Example for order:
STRAUB-GRIP-L 10“, EPDM, ES
Technical Manual 3/03 Page 27
STR
AU
B-G
RIP
E / 165120
4.1.1 Metric Specification STRAUB-GRIP-L Ø 26.9 - 219.1 mm
Right of alteration reserved.
Legend: - W1 - W5 according to DIN Standard 86128 (ASTM F1476 / F1548, ISO/NP-15837 / 15838).- PS: Working pressure considering the applications loads.- PN: Nominal pressure, includes four times safety factor, for applications that require authorisation of classification
societies (e.g. ABS, DNV, etc.).Remarks: - Follow fitting / disassembly instructions. Test pressure = 1,5 x nominal pressure.
- The pressure values are valid on radial rigid carbon steel pipes under static loads (for minimum pipe wall-thicknesssee p. 23 or contact factory).
- Weight of the pipe joints see packing specifications.- Strip insert is required when gap between pipe ends is excessive, in presence of swelling, vacuum/depression (suction line),
or external pressure. Strip inserts are available, under separate order, at additional costs.
MaterialsW1 W2 W4 W5
ComponentsCasing AISI 316 TiScrews AISI 316 LU-bolts AISI 316 TiAnchoring ring AISI 301Strip insert (option) AISI 316 L / PA/GFSealing sleeveEPDM
Temp.: -20°C up to +80°CMedium: all qualities of water, waste water, air solids and chemical products
Sealing sleeveNBR
Temp.: -20°C up to +80°CMedium: water, gas, oil, fuel and other hydrocarbons
Sealing sleeveVITON A*
Temp.: -20°C up to +180°CMedium: ozone, oxygen, acids, gas, oil and fuel (only with strip insert)
Chemical resistance of sealing sleeve on request.
Pipe Clamping range Nominalpressure
Workingpressure
Dimensional data Setting gap bet-ween pipe ends
R max.
Locking bolts
braced without with torque allen thread
AD(mm) (mm)
PN(bar)
PS(bar)
B(mm)
C(mm)
DV(mm)
KV(mm)
strip insert(mm)
rate(Nm)
head(mm)
M...
26.9 26.4 - 27.4 16 46 46 19 43 70 5 5 7.5 5 630.0 29.5 - 30.5 16 42 46 17 47 75 5 5 7.5 5 633.7 33.2 - 34.2 16 38 46 17 51 75 5 5 7.5 5 6
38.0 37.5 - 38.5 16 33 61 25 57 90 5 10 15 6 842.4 41.9 - 42.9 16 30 61 25 62 95 5 10 15 6 844.5 44.0 - 45.0 16 33 61 25 64 95 5 10 15 6 8
48.3* 47.8 - 48.8 16 30 61 25 67 100 5 10 15 6 8
54.0 53.5 - 54.5 16 20 76 37 76 105 10 15 15 6 857.0 56.4 - 57.6 16 18 76 37 76 105 10 15 15 6 8
60.3* 59.7 - 60.9 16 22 76 37 79 110 10 15 15 6 8
66.6 64.9 - 67.3 16 27 93 35 87 126 10 15 20 6 873.0* 72.3 - 73.7 16 31 95 41 96 135 10 25 20 6 876.1* 75.3 - 76.9 16 31 95 41 98 135 10 25 20 6 879.5 78.7 - 80.3 16 23 93 35 100 135 10 15 20 6 8
84.0 83.2 - 84.8 16 26 95 35 112 145 10 15 20 6 888.9* 88.0 - 89.8 16 22 95 41 111 150 10 25 20 6 8100.6 99.6 - 101.6 16 22 95 35 129 165 10 15 25 6 8
101.6 100.6 - 102.6 16 22 95 35 130 165 10 15 25 6 8104.0 103.0 - 105.0 16 23 95 35 132 165 10 15 25 6 8104.8 103.8 - 105.8 16 22 95 35 133 165 10 15 25 6 8108.0 106.9 - 109.1 16 21 95 41 130 165 10 25 25 6 8
114.3* 113.2 - 115.4 16 16 95 41 136 170 10 25 25 6 8127.0 125.7 - 128.3 16 19 110 54 151 195 10 35 40 8 10129.0 127.7 - 130.3 16 19 110 54 153 195 10 35 40 8 10
130.2 128.9 - 131.5 16 19 110 54 154 200 10 35 40 8 10133.0 131.7 - 134.3 16 19 110 54 157 200 10 35 40 8 10139.7 138.3 - 141.1 16 16 110 54 164 210 10 35 40 8 10141.3 139.9 - 142.7 16 16 110 54 166 210 10 35 40 8 10
154.0 152.5 - 155.5 13 16 110 48 184 225 10 30 40 8 10159.0 157.4 - 160.6 13 16 110 54 183 225 10 35 40 8 10168.3 166.6 - 170.0 13 16 110 54 192 230 10 35 40 8 10219.1 216.9 - 221.3 10 16 142 80 250 295 10 35 60 10 12
Technical Manual 3/03 Page 28
STR
AU
B-G
RIP
E / 165120
4.1.2 Metric Specification STRAUB-GRIP-L Ø 180.0 - 609.6 mm
Right of alteration reserved.
Legend: - W1 - W5 according to DIN Standard 86128 (ASTM F1476 / F1548, ISO/NP-15837 / 15838).- PS: Working pressure considering the applications loads.- PN: Nominal pressure, includes four times safety factor, for applications that require authorisation of classification societies
(e.g. ABS, DNV, etc.)* Property class 12.9, Dacromet 500 (zinc-chromate with integrated lubricant).
Remarks: - Follow fitting / disassembly instructions.- Test pressure = 1,5 x nominal pressure- The pressure values are valid on radial rigid carbon steel pipes under static loads (for minimum wall-thickness of pipe
see p. 23 or contact factory).- Weight of the pipe joints see packing specifications.- Strip insert is required when gap between pipe ends is excessive, in presence of swelling, vacuum/depression (suction line),
or external pressure. Strip inserts are available, under separate order, at additional costs.
MaterialsW1 W2 W4 W5
Components
Casing AISI 316 Ti AISI 316 TiScrews AISI 4135* AISI 316 LBolts AISI 12L 14, galvanized AISI 316 L
Anchoring ring AISI 301 AISI 301Strip insert (option) AISI 316 L / HDPE AIDI 316 L / HDPESealing sleeveEPDM
Temp.: -20°C up to +80°CMedium: all qualities of water, waste water, air, solids and chemical products
Sealing sleeveNBR
Temp.: -20°C up to +80°CMedium: water, gas, oil, fuel and other hydrocarbons
Chemical resistance of sealing sleeve on request.Versions in W2 or W5.
Pipe Clamping range Nominalpressure
Workingpressure
Dimensional data Settting gap bet-ween pipe ends
Rmax.
Locking bolts
braced without with torque allen thread
AD(mm) (mm)
PN(bar)
PS(bar)
B(mm)
C(mm)
DV(mm)
KV(mm)
strip insert(mm)
rate(Nm)
head(mm)
M...
180.0 178.0 - 182.0 - 16 141 80 205 255 10 35 50 10 12193.7 192.0 - 195.5 - 16 141 80 224 270 10 35 50 10 12200.0 198.0 - 202.0 - 15 141 80 230 275 10 35 50 10 12204.0 202.0 - 206.0 . 14 141 80 234 280 10 35 50 10 12244.5 242.0 - 247.0 5.5 9 141 80 275 320 10 35 50 10 12250.0 247.5 - 252.5 5.5 9 141 80 280 325 10 35 50 10 12254.0 251.5 - 256.5 5.5 9 141 80 284 325 10 35 50 10 12267.0 264.5 - 269.5 5 8 141 80 297 340 10 35 50 10 12273.0 270.5 - 275.5 4 7 141 80 303 345 10 35 50 10 12304.0 301.0 - 307.0 4 6 141 80 334 375 10 35 60 10 12323.9 320.5 - 327.0 3 5 141 80 354 395 10 35 60 10 12355.6 352.0 - 359.0 2.5 4 141 80 386 425 10 35 60 10 12406.4 402.5 - 410.5 2 3 141 80 436 470 10 35 60 10 12457.2 452.5 - 461.5 - 2 141 80 487 520 10 35 60 10 12508.0 503.5 - 512.5 - 2 141 80 538 570 10 35 70 10 12558.8 554.5 - 563.5 - 2 141 80 589 620 10 35 70 10 12609.6 605.0 - 614.0 - 1 141 80 640 670 10 35 70 10 12
Technical Manual 3/03 Page 29
STR
AU
B-G
RIP
4.1.3 Imperial Specification STRAUB-GRIP-L Ø 3/4 - 8 inch
Right of alteration reserved. .
Legend: - W1 - W5 according to DIN Standard 86128 (ASTM F1476 / F1548, ISO/NP-15837 / 15838).- PS: Working pressure considering the applications loads. Contact factory for higher working pressure.** Type approval pressure for applications that require authorisation of classification societies (e.g. ABS, DNV, etc.).* All items marked * are shown with actual pipe outside diameters, and are for non-standard pipe sizes. All shown in bold type
are standard pipe sizes.Remarks: - Follow fitting / disassembly instructions. Test pressure = 1,5 x nominal pressure.
- The pressure values are valid on radial rigid carbon steel pipes under static loads (for minimum wall-thickness of pipesee p. 23 or contact factory).
- Weight of the pipe joints see packing specifications.- Strip insert is required when gap between pipe ends is excessive, in presence of swelling, vacuum/depression (suction line), or
external pressure. Strip inserts are available, under separate order, at additional costs.
US / 165120
MaterialsW1 W2 W4 W5
ComponentsCasing AISI 316 TiScrews AISI 316 LU-bolts AISI 316 TiAnchoring ring AISI 301Strip insert (option) AISI 316 L / PA/GFSealing sleeveEPDM
Temp.: -4°F up to +176°FMedium: all qualities of water, waste water, air solids and chemical products
Sealing sleeveNBR
Temp.: -4°F up to +176°FMedium: water, gas, oil, fuel and other hydrocarbons
Sealing sleeveVITON A#
Temp.: -4°F up to +356°FMedium: ozone, oxygen, acids, gas, oil and fuel (only with strip insert)
Chemical resistance of sealing sleeve on request.
Pipe-Ø For p ipe AD(tolerence
range)
Work ingpressure
PS
Typeapprovalpressure
Dimensional data Setting gap b e t -ween pipe ends
Rm a x .
Locking bolts
** braced without with torque allen thread
Nominal( inch)
A D(mm) ( inch) (psi) (bar) ps i
B( inch)
C( inch)
D V( inch)
KV( inch)
strip insert( inch)
rate(ft.lbf)
head( m m )
M...
3 /4" 26.9 1.04 - 1.08 670 46 232 1.8 0.7 1.7 2.8 0.2 0.2 5.5 5 61.2" 30.0 1.16 - 1.20 610 42 232 1.8 0.6 1.9 3.0 0.2 0.2 5.5 5 61" 33.7 1.31 - 1.35 550 38 232 1.8 0.6 2.0 3.0 0.2 0.2 5.5 5 6
1 1 /2"* 38.0 1.48 - 1.52 480 33 232 2.4 1.0 2.2 3.5 0.2 0.4 11 6 8
1 1/4 " 42.4 1.65 - 1.69 440 30 232 2.4 1.0 2.4 3.7 0.2 0.4 11 6 81 3 /4"* 44.5 1.73 - 1.77 480 33 232 2.4 1.0 2.5 3.7 0.2 0.4 11 6 8
11 /2 "# 48.3 1.88 - 1.92 440 30 232 2.4 1.0 2.6 3.9 0.2 0.4 11 6 82 1/8 "* 54.0 2.11 - 2.15 290 20 232 3.0 1.5 3.0 4.1 0.4 0.6 11 6 82 1/4 "* 57.0 2.22 - 2.27 260 18 232 3.0 1.5 3.0 4.1 0.4 0.6 11 6 8
2"# 60.3 2.35 - 2.40 320 22 232 3.0 1.5 3.1 4.3 0.4 0.6 11 6 82.62 66.6 2.55 - 2.65 390 27 232 3.7 1.4 3.5 5.0 0.4 0.6 15 6 8
2 1 /2"# 73.0 2.85 - 2.90 450 31 232 3.7 1.6 3.8 5.3 0.4 1.0 15 6 83"*# 76.1 2.96 - 3.03 450 31 232 3.7 1.6 3.9 5.3 0.4 1.0 15 6 83.13 79.5 3.10 - 3.16 333 23 232 3.7 1.4 4.0 5.4 0.4 0.6 15 6 8
3.3"* 84.0 3.28 - 3.34 380 26 232 3.7 1.4 4.4 5.7 0.4 0.6 15 6 83"# 88.9 3.46 - 3.54 320 22 232 3.7 1.6 4.4 5.9 0.4 1.0 15 6 8
3.96"* 100.6 3.92 - 4.00 320 22 232 3.7 1.4 5.1 6.5 0.4 0.6 18 6 83 1 /2" 101.6 3.96 - 4.04 320 22 232 3.7 1.4 5.1 6.5 0.4 0.6 18 6 8
4.1"* 104.0 4.06 - 4.13 330 23 232 3.7 1.4 5.2 6.5 0.4 0.6 18 6 84.13"* 104.8 4.09 - 4.17 320 22 232 3.7 1.4 5.2 6.5 0.4 0.6 18 6 84 1/4 "* 108.0 4.21 - 4.30 300 21 232 3.7 1.6 5.1 6.5 0.4 1.0 18 6 8
4"# 114.3 4.46 - 4.54 232 16 232 3.7 1.6 5.4 6.6 0.4 1.0 18 6 85"* 127.0 4.95 - 5.05 280 19 232 4.3 2.1 5.9 7.7 0.4 1.4 30 8 10
5.1"* 129.0 5.03 - 5.13 280 19 232 4.3 2.1 6.0 7.7 0.4 1.4 30 8 105.13"* 130.2 5.07 - 5.18 280 19 232 4.3 2.1 6.1 7.9 0.4 1.4 30 8 105 1/4 "* 133.0 5.19 - 5.29 280 19 232 4.3 2.1 6.2 7.9 0.4 1.4 30 8 105 1/2 "* 139.7 5.44 - 5.56 232 16 232 4.3 2.1 6.5 8.3 0.4 1.4 30 8 10
5" 141.3 5.51 - 5.62 232 16 232 4.3 2.1 6.5 8.3 0.4 1.4 30 8 106.1"* 154.0 6.00 - 6.12 232 16 189 4.3 1.9 7.2 8.9 0.4 1.2 30 8 106 1/4 "* 159.0 6.20 - 6.32 232 16 189 4.3 2.1 7.2 8.9 0.4 1.4 30 8 10
6" 168.3 6.56 - 6.69 232 16 189 4.3 2.1 7.6 9.1 0.4 1.4 30 8 108" 219.1 8.54 - 8.71 232 16 145 5.6 3.2 9.8 11.6 0.4 1.4 45 10 12
Technical Manual 3/03 Page 30
STR
AU
B-G
RIP
4.1.4 Imperial Specification STRAUB-GRIP-L Ø 7.1 - 24 inch
.
Legend: - W1 - W5 according to DIN Standard 86128 (ASTM F1476 / F1548, ISO/NP-15837 / 15838).- PS: Working pressure considering the applications loads. Contact factory for higher working pressure.* All items marked * are shown with actual pipe outside diameters, and are for non-standard pipe sizes. All shown in bold type
are standard pipe sizes.** Type approval pressure for applications that require authorisaiton of classification societies (e.g. ABS, DNV, etc.)***Property class 12.9, Dacromet 500 (zinc-chromate with integrated lubricant).
Remarks: - Follow fitting / disassembly instructions.- Test pressure = 1,5 x nominal pressure.- The pressure values are valid on radial rigid carbon steel pipes under static loads (for minimum wall-thickness of pipe
see p. 23 or contact factory).- Weight of the pipe joints see packing specifications.- Strip insert is required when gap between pipe ends is excessive, in presence of swelling, vacuum/depression (suction line), or
external pressure. Strip inserts are available, under separate order, at additional costs.
Right of alteration reserved.
US / 165120
MaterialsW1 W2 W4 W5
Components
Casing AISI 316 Ti AISI 316 TiScrews AISI 4135*** AISI 316 LBolts AISI 12L 14, galvanized AISI 316 L
Anchoring ring AISI 301 AISI 301Strip insert (option) AISI 316 L / HDPE AIDI 316 L / HDPESealing sleeveEPDM
Temp.: -4°F up to +176°FMedium: all qualities of water, waste water, air, solids and chemical products
Sealing sleeveNBR
Temp.: -4°F up to +176°FMedium: water, gas, oil, fuel and other hydrocarbons
Chemical resistance of sealing sleeve on request.Versions in W2 or W5.
Pipe-Ø For pipe AD(tolerence
range)
Workingpressure
PS
Typeapprovalpressure
Dimensional data Setting gap bet-ween pipe ends
Rmax.
Locking bolts
** braced without with torque allen thread
Nominal(inch)
AD(mm) (inch) (psi) (bar) psi
B(inch)
C(inch)
DV(inch)
KV(inch)
strip insert(inch)
rate(ft.lbf)
head(mm)
M...
7.1"* 180.0 7.01 - 7.17 232 16 - 5.5 3.1 8.1 10.0 0.4 1.4 37 10 127.6"* 193.7 7.56 - 7.70 232 16 - 5.5 3.1 8.8 10.6 0.4 1.4 37 10 127.9"* 200.0 7.80 - 7.95 220 15 - 5.5 3.1 9.1 10.8 0.4 1.4 37 10 128"* 204.0 7.95 - 8.11 200 14 - 5.5 3.1 9.2 11.0 0.4 1.4 37 10 129" 244.5 9.53 - 9.72 130 9 80 5.5 3.1 10.8 12.6 0.4 1.4 37 10 12
9.8"* 250.0 9.74 - 9.94 130 9 80 5.5 3.1 11.0 12.8 0.4 1.4 37 10 1210" 254.0 9.90 - 10.10 130 9 80 5.5 3.1 11.2 12.8 0.4 1.4 37 10 12
10.5"* 267.0 10.41 - 10.61 120 8 72 5.5 3.1 11.7 13.4 0.4 1.4 37 10 1210" 273.0 10.65 - 10.85 100 7 58 5.5 3.1 11.9 13.6 0.4 1.4 37 10 1212" 304.0 11.85 - 12.09 90 6 58 5.5 3.1 13.1 14.8 0.4 1.4 46 10 1212" 323.9 12.62 - 12.87 70 5 44 5.5 3.1 13.9 15.6 0.4 1.4 46 10 1214" 355.6 13.86 - 14.13 60 4 36 5.5 3.1 15.2 16.7 0.4 1.4 46 10 1216" 406.4 15.85 - 16.16 45 3 29 5.5 3.1 17.2 18.5 0.4 1.4 46 10 1218" 457.2 17.81 - 18.17 30 2 - 5.5 3.1 19.2 20.5 0.4 1.4 46 10 1220" 508.0 19.82 - 20.18 30 2 - 5.5 3.1 21.2 22.4 0.4 1.4 52 10 1222" 558.8 21.83 - 22.19 30 2 - 5.5 3.1 23.2 24.4 0.4 1.4 52 10 1224" 609.6 23.82 - 24.17 15 1 - 5.5 3.1 25.2 26.4 0.4 1.4 52 10 12
Technical Manual 3/03 Page 31
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AU
B-G
RIP
Metricw Working pressure up to 67 barw Outside diameters 30.0 up to 609.6mmw Temperature range -30°C up to +100°Cw Example for order:
STRAUB-METAL-GRIP 76.1, EPDM, ES
4.2 STRAUB-METAL-GRIP
Air conditioning in the city of Paris
Insulated carbon steel pipe with 12bar/175 psioperating pressure, 5°C/41°F medium temperature,STRAUB-METAL-GRIP 219.1 mm/8“
w Shock testing up to 200gw Four times safety factorw Easy fitting
Imperialw Working pressure up to 1000 psiw Outside diameters 1.2 up to 24 inchw Temperature range -22°F up to +212°Fw Example for order:
STRAUB-METAL-GRIP 3“, EPDM, ES
For building construction or civil engineering, water or waste water installations, power plants orindustrial plants, shipbuilding/offshore or as a machinery component, the STRAUB-METAL-GRIP is theultimate pull-out resistant pipe joint. STRAUB-METAL-GRIP joins any metal pipe, whether pressure orsuction line.
Technical Manual 3/03 Page 32
STR
AU
B-G
RIP
E / 115100
4.2.1 Metric Specification STRAUB-METAL-GRIP Ø 30.0 - 219.1 mm
Right of alteration reserved.
Legend: - W1 - W5 according to DIN Standard 86128 (ASTM F1476 / F1548, ISO/NP-15837 / 15838).- PS: Working pressure considering the applications loads. Contact factory for higher working pressure.- PN: Nominal pressure, includes four times safety factor, for applications that require authorisation of classification societies
(e.g. ABS, DNV, etc.).* Property class 12.9, Dacromet 500 (zinc-chromate with integrated lubricant).
Remarks: - Follow fitting / disassembly instructions.- Test pressure = 1,5 x nominal pressure.- The pressure values are valid on radial rigid carbon steel pipes under static loads (for minimum wall-thickness of pipe
see p. 23 or contact factory).- Weight of the pipe joints see packing specifications.- Strip insert is required when gap between pipe ends is excessive, in presence of swelling, vacuum/depression (suction line),
or external pressure. Strip inserts are available, under separate order, at additional costs.
MaterialsW1 W2 W4 W5
Components
Casing AISI 304 AISI 304Screws AISI 4135* AISI 316Bolts AISI 12L 14, galvanized AISI 304
Anchoring ring AISI 301 AISI 301Strip insert (option) AISI 316 L / PA/GF AISI 316 L / PA/GFSealing sleeveEPDM
Temp.: -30°C up to +100°CMedium: all qualities of water, waste water, air, solids and chemical products
Sealing sleeveNBR
Temp.: -20°C up to +80°CMedium: water, gas, oil, fuel and other hydrocarbons
Chemical resistance of sealing sleeve on request.Versions in W2 or W4.
Pipe Clamping range Nominalpressure
Workingpressure
Dimensional data Setting gap bet-ween pipe ends
Rmax.
Locking bolts
braced without with torque allen thread
AD(mm) (mm)
PN(bar)
PS(bar)
B(mm)
C(mm)
DV(mm)
KV(mm)
strip insert(mm)
rate(Nm)
head(mm)
M...
30.0 29.5 - 30.5 16 67 46/67 18 47 70 5 15 10 6 833.7 33.2 - 34.2 16 62 46/67 18 52 75 5 15 10 6 838.0 37.5 - 38.5 16 58 61 19 58 90 5 15 15 6 842.4 41.9 - 42.9 16 53 61 20 62 90 5 15 15 6 844.5 44.0 - 45.0 16 48 61 20 64 95 5 15 15 6 848.3 47.8 - 48.8 16 44 61 20 68 95 5 15 15 6 854.0 53.5 - 54.5 16 39 77 38 74 100 5 15 20 6 857.0 56.4 - 57.6 16 37 77 32 77 105 10 25 20 6 860.3 59.7 - 60.9 16 37 77 32 82 110 10 25 20 6 876.1 75.3 - 76.9 16 56 94 39 100 130 10 25 35 8 1084.0 83.2 - 84.8 16 45 94 39 112 140 10 25 35 8 1088.9 88.0 - 89.8 16 41 94 39 117 145 10 25 35 8 10104.0 103.0 - 105.0 16 37 94 39 133 160 10 25 35 8 10108.0 106.9 - 109.1 16 35 94 39 133 160 10 25 35 8 10114.3 113.2 - 115.4 16 34 94 39 139 165 10 25 35 8 10129.0 127.7 - 130.3 16 33 108 51 160 190 15 35 60 10 12133.0 131.7 - 134.3 16 33 108 43 160 190 15 30 60 10 12139.7 138.3 - 141 .1 16 32 109 43 168 200 15 30 60 10 12154.0 152.5 - 155.5 16 32 109 51 186 215 15 35 60 10 12159.0 157.4 - 160.6 16 31 109 43 187 215 15 30 60 10 12168.3 166.6 - 170.0 16 29 109 43 200 230 15 30 60 10 12219.1 216.9 - 221.3 16 26 150 60 259 295 15 35 100 14 16
Technical Manual 3/03 Page 33
STR
AU
B-G
RIP
E / 115100
Right of alteration reserved.
Legend: - W1 - W5 according to DIN Standard 86128 (ASTM F1476 / F1548, ISO/NP-15837 / 15838).- PS: Working pressure considering the applications loads. Contact factory for higher working pressure.- PN: Nominal pressure, includes four times safety factor, for applications that require authorisation of classification
societies (e.g. ABS, DNV, etc.).* Property class 12.9, Dacromet 500 (zinc-chromate with integrated lubricant).
Remarks: - Follow fitting / disassembly instructions.- Test pressure = 1,5 x nominal pressure.- The pressure values are valid on radial rigid carbon steel pipes under static loads (for minimum wall-thickness of pipe
see p. 23 or contact factory).- Weight of the pipe joints see packing specifications.- Strip insert is required when gap between pipe ends is excessive, in presence of swelling, vacuum/depression (suction line),
or external pressure. Strip inserts are available, under separate order, at additional costs.
4.2.2 Metric Specification STRAUB-METAL-GRIP Ø 244.5 - 609.6 mm
MaterialsW1 W2 W4 W5
Components
Casing AISI 1024, hot-dip galv.Screws AISI 4135*Bolts AISI 12L 14, galvanizedAnchoring ring AISI 301Strip insert (option) AISI 316 L / PA/GFSealing sleeveEPDM
Temp.: -20°C up to +80°CMedium: all qualities of water, waste water, air, solids and chemical products
Sealing sleeveNBR
Temp.: -20°C up to +80°CMedium: water, gas, oil, fuel and other hydrocarbons
Chemical resistance of sealing sleeve on request.
Pipe Clamping range Nominalpressure
Workingpressure
Dimensional data Setting gap bet-ween pipe ends
Rmax.
Locking bolts
braced without with torque allen thread
AD(mm) (mm)
PN(bar)
PS(bar)
B(mm)
C(mm)
DV(mm)
KV(mm)
strip insert(mm)
rate(Nm)
head(mm)
M...
244.5 242.0- 247.0 14 27 148 67 290 345 15 35 180 17 20267.0 264.5 - 269.5 12 24 148 67 312 365 15 35 180 17 20273.0 270.5 - 275.5 12 21 148 67 318 370 15 35 180 17 20323.9 320.5 - 327.0 10 18 148 67 369 420 15 35 230 17 20355.6 352.0 - 359.0 8 17 148 67 401 450 15 35 230 17 20406.4 402.5 - 410.5 8 14 148 67 451 500 15 35 230 17 20457.2 452.5 - 462.0 6 8 148 67 502 550 15 35 250 17 20508.0 503.0 - 513.0 5 6 148 67 553 600 15 35 250 17 20558.8 554.0 - 564.0 4.5 6 148 67 604 650 15 35 300 17 20609.6 604.5 - 614.5 4 5 148 67 655 700 15 35 300 17 20
Technical Manual 3/03 Page 34
STR
AU
B-G
RIP
4.2.3 Imperial Specification STRAUB-METAL-GRIP Ø 1 - 8 inch
US / 115100
Right of alteration reserved.
Legend: - W1 - W5 according to DIN Standard 86128 (ASTM F1476 / F1548, ISO/NP-15837 / 15838).- PS: Working pressure considering the applications loads. Contact factory for higher working pressure.* All items marked * are shown with actual pipe outside diameters, and are for non-standard pipe sizes. All shown in bold type
are standard pipe sizes.** Type approval pressure for applications that require authorisation of classification societies (e.g. ABS, DNV, etc.).*** Property class 12.9, Dacromet 500 (zinc-chromate with integrated lubricant).
Remarks: - Follow fitting / disassembly instructions.- Test pressure = 1,5 x nominal pressure.- The pressure values are valid on radial rigid carbon steel pipes under static loads (for minimum wall-thickness of pipe
see p. 23 or contact factory).- Weight of the pipe joints see packing specifications.- Strip insert is required when gap between pipe ends is excessive, in presence of swelling, vacuum/depression (suction line), or
external pressure. Strip inserts are available, under separate order, at additional costs.
MaterialsW1 W2 W4 W5
Components
Casing AISI 304 AISI 304Screws AISI 4135*** AISI 316Bolts AISI 12L 14, galvanized AISI 304
Anchoring ring AISI 301 AISI 301Strip insert (option) AISI 316 L / PA/GF AISI 316 L / PA/GFSealing sleeveEPDM
Temp.: -22°F up to +212°FMedium: all qualities of water, waste water, air, solids and chemical products
Sealing sleeveNBR
Temp.: -4°F up to +176°FMedium: water, gas, oil, fuel and other hydrocarbons
Chemical resistance of sealing sleeve on request.Versions in W2 or W4.
Pipe-Ø For pipe AD(tolerence
range)
Workingpressure
Typeapprovalpressure
Dimensional data Setting gap bet-ween pipe ends
Rmax.
Locking bolts
PS ** braced without with torque allen thread
Nominal(inch)
AD(mm) (inch) (psi) (bar) psi
B(inch)
C(inch)
DV(inch)
KV(inch)
strip insert(inch)
rate(ft.lbf)
head(mm)
M...
1.2 30.0 1.16 - 1.20 1000 67 232 1.8/2.6 0.7 1.9 2.8 0.2 0.6 7.5 6 81" 33.7 1.31 - 1.35 900 62 232 1.8/2.6 0.7 2.0 3.0 0.2 0.6 7.5 6 8
11/2"* 38.0 1.48 - 1.52 840 58 232 2.4 0.8 2.3 3.5 0.2 0.6 11 6 811/4" 42.4 1.65 - 1.69 770 53 232 2.4 0.8 2.4 3.5 0.2 0.6 11 6 8
13/4"* 44.5 1.73 - 1.77 700 48 232 2.4 0.8 2.5 3.7 0.2 0.6 11 6 8
11/2" 48.3 1.88 - 1.92 640 44 232 2.4 0.8 2.7 3.7 0.2 0.6 11 6 821/8"* 54.0 2.11 - 2.15 570 39 232 3.0 1.5 2.9 3.9 0.2 0.6 15 6 821/4"* 57.0 2.22 - 2.27 540 37 232 3.0 1.3 3.0 4.1 0.4 1.0 15 6 8
2" 60.3 2.35 - 2.40 540 37 232 3.0 1.3 3.2 4.3 0.4 1.0 15 6 83"* 76.1 2.96 - 3.03 810 56 232 3.7 1.5 3.9 5.1 0.4 1.0 26 8 10
3.3"* 84.0 3.28 - 3.34 650 45 232 3.7 1.5 4.4 5.5 0.4 1.0 26 8 103" 88.9 3.46 - 3.54 590 41 232 3.7 1.5 4.6 5.7 0.4 1.0 26 8 10
4.1"* 104.0 4.06 - 4.13 540 37 232 3.7 1.5 5.2 6.3 0.4 1.0 26 8 1041/4"* 108.0 4.21 - 4.30 510 35 232 3.7 1.5 5.2 6.3 0.4 1.0 26 8 10
4" 114.3 4.46 - 4.54 490 34 232 3.7 1.5 5.5 6.5 0.4 1.0 26 8 105.1"* 129.0 5.03 - 5.13 480 33 232 4.3 2.0 6.3 7.5 0.6 1.4 44 10 1251/4"* 133.0 5.19 - 5.29 480 33 232 4.3 1.7 6.3 7.5 0.6 1.2 44 10 1251/2"* 139.7 5.44 - 5.56 470 32 232 4.3 1.7 6.6 7.9 0.6 1.2 44 10 126.1"* 154.0 6.00 - 6.12 470 32 232 4.3 2.0 7.3 8.5 0.6 1.4 44 10 12
61/4"* 159.0 6.20 - 6.32 450 31 232 4.3 1.7 7.4 8.5 0.6 1.2 44 10 126" 168.3 6.56 - 6.69 420 29 232 4.3 1.7 7.9 9.1 0.6 1.2 44 10 128" 219.1 8.54 - 8.71 380 26 232 5.9 2.4 10.2 11.6 0.6 1.4 74 14 16
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4.2.4 Imperial Specification STRAUB-METAL-GRIP Ø 9 - 24 inch
Right of alteration reserved.
Legend: - W1 - W5 according to DIN Standard 86128 (ASTM F1476 / F1548, ISO/NP-15837 / 15838).- PS: Working pressure considering the applications loads. Contact factory for higher working pressure.* All items marked * are shown with actual pipe outside diameters, and are for non-standard pipe sizes. All shown in bold type
are standard pipe sizes.** Type approval pressure for applications that require authorisation of classification societies (e.g. ABS, DNV, etc.).*** Property class 12.9, Dacromet 500 (zinc-chromate with integrated lubricant).
Remarks: - Follow fitting / disassembly instructions.- Test pressure = 1,5 x nominal pressure.- The pressure values are valid on radial rigid carbon steel pipes under static loads (for minimum wall-thickness of pipe
see p. 23 or contact factory).- Weight of the pipe joints see packing specifications.- Strip insert is required when gap between pipe ends is excessive, in presence of swelling, vacuum/depression (suction line), or
external pressure. Strip inserts are available, under separate order, at additional costs.
US / 115100
MaterialsW1 W2 W4 W5
Components
Casing AISI 1024, hot-dip galv.Screws AISI 4135***Bolts AISI 12L 14, galvanizedAnchoring ring AISI 301Strip insert (option) AISI 316 L / HDPESealing sleeveEPDM
Temp.: -4°F up to +176°FMedium: all qualities of water, waste water, air, solids and chemical products
Sealing sleeveNBR
Temp.: -4°F up to +176°FMedium: water, gas, oil, fuel and other hydrocarbons
Chemical resistance of sealing sleeve on request.
Pipe-Ø For pipe AD(tolerence
range)
Workingpressure
PS
Typeapprovalpressure
Dimensional data Setting gap bet-ween pipe ends
Rmax.
Locking bolts
** braced without with torque allen thread
Nominal(inch)
AD(mm) (inch) (psi) (bar) psi
B(inch)
C(inch)
DV(inch)
KV(inch)
strip insert(inch)
rate(ft.lbf)
head(mm)
M...
9" 244.5 9.53 - 9.72 390 27 203 5.8 2.6 11.4 13.6 0.6 1.4 133 17 2010.5"* 267.0 10.41 - 10.61 350 24 174 5.8 2.6 12.3 14.4 0.6 1.4 133 17 20
10" 273.0 10.65 - 10.85 300 21 174 5.8 2.6 12.5 14.6 0.6 1.4 133 17 2012" 323.9 12.62 - 12.87 260 18 145 5.8 2.6 14.5 16.5 0.6 1.4 170 17 2014" 355.6 13.86 - 14.13 250 17 116 5.8 2.6 15.8 17.7 0.6 1.4 170 17 2016" 406.4 15.85 - 16.16 200 14 116 5.8 2.6 17.8 19.7 0.6 1.4 170 17 2018" 457.2 17.81 - 18.19 120 8 94 5.8 2.6 19.8 21.7 0.6 1.4 185 17 2020" 508.0 19.80 - 20.20 90 6 80 5.8 2.6 21.8 23.6 0.6 1.4 185 17 2022" 558.8 21.81 - 22.20 90 6 73 5.8 2.6 23.8 25.6 0.6 1.4 221 17 2024" 609.6 23.80 - 24.19 70 5 65 5.8 2.6 25.8 27.6 0.6 1.4 221 17 20
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4.3 STRAUB-PLAST-/-COMBI-GRIP
Metricw Working pressure up to 16 barw Outside diameters 40.0 up to 160.0 mmw Temperature range -30°C up to +100°Cw Example for order:
STRAUB-PLAST-GRIP 75.0, EPDM, ESSTRAUB-COMBI-GRIP 75.0, EPDM, ES
For gas and water supply and industrial plants: for suction and pressure lines, thin and thick walled pipes.STRAUB-PLAST-GRIP is the ideal pipe joint for all kind of plastic pipes. STRAUB-COMBI-GRIP guaranteesa perfect transition from plastic to metal pipes. Leading technology and high quality production bringssafety to each area of operation.
For the installation of pipes made of polyethylene and other soft-thermoplastic materials use ourstiffening rings STRAUB-PG (page 73).
Imperialw Working pressure up to 232 psiw Outside diameters 11/4 up to 6 inchw Temperature range -22°F up to +212°Fw Example for order:
STRAUB-PLAST-GRIP 21/2“, EPDM, ESSTRAUB-COMBI-GRIP 21/2“, EPDM, ES
Swiss Railway Zurich
Propane-Gas distribution main for PE and PVCSTRAUB-PLAST-GRIP 75 mm/21/2“
w Resist weatherw Economical solution for transitionsw No special installation tool and electric supply
point requiredw Joins all kind of plastic
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E / 125100
STRAUB-PLAST-GRIP (for plastic pipes)
Right of alteration reserved.
Legend: - W1 - W5 according to DIN Standard 86128 (ASTM F1476 / F1548, ISO/NP-15837 / 15838).* Property class 12.9, Dacromet 500 (zinc-chromate with integrated lubricant).
Remarks: - Follow fitting / disassembly instructions. Test pressure = 1,5 x nominal pressure.- For the installation of pipes made of polyethylene and other soft-thermoplastic materials use our stiffening rings STRAUB-PG.- Weight of the pipe joints see packing specifications.- Strip insert is required when gap between pipe ends is excessive, in presence of swelling, vacuum/depression (suction line),
or external pressure. Strip inserts are available, under separate order, at additional costs.
STRAUB-COMBI-GRIP (for transitions)
4.3.1 Metric Specification STRAUB-PLAST-/-COMBI-GRIP Ø 40.0 - 160.0 mmMaterials
W1 W2 W4 W5Components
Casing AISI 304 AISI 304Screws AISI 4135* AISI 316 / 316 LBolts AISI 12L 14, galvanized AISI 304Anchoring ring AISI 301 AISI 301Strip insert (option) AISI 316 L / PA/GF AISI 316 L / PA/GFSealing sleeveEPDM
Temp.: -30°C up to +100°CMedium: all qualities of water, waste water, air, solids and chemical products
Sealing sleeveNBR
Temp.: -20°C up to +80°CMedium: water, gas, oil, fuel and other hydrocarbons
Chemical resistance of sealing sleeve on request.
Pipe Clamping range Nominalpressure
Dimensional data Setting gap bet-ween pipe ends
Rmax.
Locking bolts
braced without with torque allen threadAD
(mm) (mm)PN
(bar)B
(mm)C
(mm)DV
(mm)KV
(mm)strip insert
(mm)rate(Nm)
head(mm)
M...
40.0 39.0 - 40.5 16 61 19 60 90 5 15 15 6 850.0 49.0 - 50.5 16 61 26 70 100 5 15 15 6 863.0 62.0 - 64.0 16 76 32 85 115 10 20 20 6 875.0 74.0 - 76.0 16 94 39 99 130 10 25 35 8 1090.0 89.0 - 91.0 16 94 39 118 145 10 25 35 8 10110.0 109.0 - 111.0 16 94 39 135 160 10 25 35 8 10114.3 113.0 - 115.0 16 94 39 139 165 10 25 35 8 10125.0 124.0 - 126.0 16 108 43 152 185 15 30 60 10 12140.0 139.0 - 142.0 16 109 43 168 200 15 30 60 10 12160.0 159.0 - 162.0 16 109 43 188 215 15 30 60 10 12
Pipe Clamping range Nominalpressure
Dimensional data Setting gap bet-ween pipe ends
R max.
Locking bolts
AD braced without with torque allen thread
plastic(mm)
metal(mm)
plastic(mm)
metal(mm)
PN(bar)
B(mm)
C(mm)
DV(mm)
KV(mm)
strip insert(mm)
rate(Nm)
head(mm)
M...
40.0 38.0 39.0 - 40.5 37.5 - 39.0 16 61 19 60 90 5 10 15 6 840.0 42.4 39.0 - 40.5 42.0 - 43.5 16 61 20 63 95 5 10 15 6 850.0 48.3 49.0 - 50.5 47.8 - 49.0 16 61 26 70 100 5 10 15 6 863.0 60.3 62.0 - 64.0 59.7 - 61.0 16 76 32 85 115 10 25 20 6 875.0 76.1 74.0 - 76.0 75.0 - 77.5 16 94 39 100 130 10 25 35 8 1090.0 88.9 89.0 - 91.0 87.0 - 90.0 16 94 39 118 145 10 25 35 8 10
110.0 108.0 109.0 - 111.0 106.5 - 110.5 16 94 39 135 160 10 25 35 8 10110.0 114.3 109.0 - 111.0 112.0 - 116.0 16 97 45 140 170 10 25 35 8 10114.3 114.3 113.0 - 115.0 112.0 - 116.0 16 94 39 139 165 10 25 35 8 10140.0 139.7 139.0 - 142.0 137.5 - 141.0 16 109 43 168 200 15 30 60 10 12160.0 159.0 159.0 - 162.0 157.0 - 160.5 16 109 43 188 215 15 30 60 10 12
STRAUB-PLAST-GRIP STRAUB-COMBI-GRIP
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US / 125100
STRAUB-PLAST-GRIP STRAUB-COMBI-GRIP
STRAUB-PLAST-GRIP (for plastic pipes)
Legend: - W1 - W5 according to DIN Standard 86128 (ASTM F1476 / F1548, ISO/NP-15837 / 15838). Right of alteration reserved.
**Property class 12.9, Dacromet 500 (zinc-chromate with integrated lubricant).* All items marked * are shown with actual pipe outside diameters, and are for non-standard pipe sizes. All shown in bold
type are standard pipe sizes.Remarks: - Follow fitting / disassembly instructions. / Weight of the pipe joints see packing specifications.
- For the installation of pipes made of polyethylene and other soft-thermoplastic materials use our stiffening rings STRAUB-PG.- Strip insert is required when gap between pipe ends is excessive, in presence of swelling, vacuum/depression (suction line),
or external pressure. Strip inserts are available, under separate order, at additional costs.
STRAUB-COMBI-GRIP (for transitions)
4.3.2 Imperial Specification STRAUB-PLAST-/-COMBI-GRIP Ø 11/4 - 6 inch
Pipe-Ø Clamping range Typeapprovalpressure
Dimensional data Setting gap bet-ween pipe ends
Rmax.
Locking bolts
(inch)
braced without with torque allen thread
Nominal(inch)
AD(mm) psi
B(inch)
C(inch)
DV(inch)
KV(inch)
strip insert(inch)
rate(ft.lbf)
head(mm)
M...
1 1/4" 40.0 1.54 - 1.59 232 2.4 0.7 2.4 3.5 0.2 0.6 11 6 811/2" 50.0 1.93 - 1.99 232 2.4 1.0 2.8 3.9 0.2 0.6 11 6 82" 63.0 2.44 - 2.52 232 3.0 1.2 3.4 4.5 0.4 0.8 15 6 8
21/2" 75.0 2.91 - 2.99 232 3.7 1.5 3.9 5.1 0.4 1.0 26 8 103" 90.0 3.50 - 3.58 232 3.7 1.5 4.6 5.7 0.4 1.0 26 8 104" 110.0 4.29 - 4.37 232 3.7 1.5 5.3 6.3 0.4 1.0 26 8 10
41/2" 114.3 4.45 - 4.53 232 3.7 1.5 5.5 6.5 0.4 1.0 26 8 104.92" 125.0 4.88 - 4.96 232 4.3 1.7 6.0 7.3 0.6 1.2 44 10 12
5" 140.0 5.47 - 5.59 232 4.3 1.7 6.6 7.9 0.6 1.2 44 10 126" 160.0 6.26 - 6.38 232 4.3 1.7 7.4 8.5 0.6 1.2 44 10 12
Pipe-Ø Clamping range Typeapprovalpressure
Dimensional data Setting gap bet-ween pipe ends
Rmax.
Locking bolts
plastic metal
plastic(inch)
metal(inch)
braced without with torque allen thread
Nom.(inch)
AD(mm)
Nom.(inch)
AD(mm) psi
B(inch)
C(inch)
DV(inch)
KV(inch)
strip insert(inch)
rate(ft.lbf)
head(mm)
M...
1 1/4" 40.0 11/2"* 38.0 1.54 - 1.59 1.48 - 1.54 232 2.4 0.7 2.4 3.5 0.2 0.4 11 6 811/4" 40.0 11/4" 42.4 1.54 - 1.59 1.65 - 1.71 232 2.4 0.8 2.5 3.7 0.2 0.4 11 6 811/2" 50.0 11/2" 48.3 1.93 - 1.99 1.88 - 1.93 232 2.4 1.0 2.8 3.9 0.2 0.4 11 6 82" 63.0 2" 60.3 2.44 - 2.52 2.35 - 2.40 232 3.0 1.2 3.4 4.5 0.4 1.0 15 6 8
21/2" 75.0 3"* 76.1 2.91 - 2.99 2.95 - 3.05 232 3.7 1.5 3.9 5.1 0.4 1.0 26 8 103" 90.0 3" 88.9 3.50 - 3.58 3.43 - 3.54 232 3.7 1.5 4.6 5.7 0.4 1.0 26 8 104" 110.0 41/4"* 108.0 4.29 - 4.37 4.19 - 4.35 232 3.7 1.5 5.3 6.3 0.4 1.0 26 8 104" 110.0 4 1/2" 114.3 4.29 - 4.37 4.41 - 4.57 232 3.8 1.8 5.5 6.7 0.4 1.0 26 8 10
4 1/2" 114.3 4" 114.3 4.45 - 4.53 4.41 - 4.57 232 3.7 1.5 5.5 6.5 0.4 1.0 26 8 105" 140.0 51/2"* 139.7 5.47 - 5.59 5.41 - 5.55 232 4.3 1.7 6.6 7.9 0.6 1.2 44 10 126" 160.0 61/4"* 159.0 6.26 - 6.38 6.18 - 6.32 232 4.3 1.7 7.4 8.5 0.6 1.2 44 10 12
MaterialsW1 W2 W4 W5
Components
Casing AISI 304 AISI 304Screws AISI 4135** AISI 316 / 316 LBolts AISI 12L 14, galvanized AISI 304Anchoring ring AISI 301 AISI 301Strip insert (option) AISI 316 L / PA/GF AISI 316 L / PA/GFSealing sleeveEPDM
Temp.: -22°F up to 212°FMedium: all qualities of water, waste water, air, solids and chemical products
Sealing sleeveNBR
Temp.: -4°F up to +176°FMedium: water, gas, oil, fuel and other hydrocarbons
Chemical resistance of sealing sleeve on request.
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4.4 Allowable pipe diameter tolerances
Clamping range
Different diameters
E / 180010
Type of Outside diameter Clamping range DiameterSTRAUB of coupling per AD difference
coupling AD ranges +/- AD1 : AD2
[mm] [mm / %] [mm / %]
GRIP-L 26.9 - 88.9 1.0 % 2.0 mm100.6 - 273.0 1.0 % 2.0 %304.0 - 609.6 1.0 % 6.0 mm
METAL-GRIP 33.7 - 54.0 0.5 mm 2.0 mm57.0 - 88.9 1.0 % 2.0 mm
104.0 - 273.0 1.0 % 2.0 %323.9 - 609.6 1.0 % 6.0 mm
COMBI-GRIP 40.0 / 38.0 - 50.0 / 48.3 0.5 / 0.5 mm 2.0 mm63.0 / 60.3 - 90.0 / 88.9 1.0 / 1.0 mm 2.0 mm
110.0 / 108.0 - 114.3 / 114.3 1.0 / 2.0 mm 2.0 %140.0 / 139.7 - 160.0 / 159.0 1.5 / 1.5 mm 2.0 %
PLAST-GRIP 40.0 - 50.0 0.5 mm 2.0 mm63.0 - 90.0 1.0 mm 2.0 mm
110.0 - 114.3 1.0 mm 2.0 %125.0 - 160.0 1.5 mm 2.0 %
Metric
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Type of Outside diameter Clamping range DiameterSTRAUB of coupling per AD difference
coupling AD ranges +/- AD1 : AD2
[inch] [inch / %] [inch / %]
GRIP-L 3/4“ - 3“ 1.0 % 0.08“3.96“* - 10“ 1.0 % 2.0 %12“* - 24“ 1.0 % 0.24“
METAL-GRIP 1“ - 21/8“* 0.02“ 0.08“21/4“* - 3“ 1.0 % 0.08“4.1“* - 10“ 1.0 % 2.0 %12“ - 24“ 1.0 % 0.24“
COMBI-GRIP 11/4“** / 11/2“* - 11/2“** / 11/2“ 0.02“ / 0.02“ 0.08“2“** / 2“ - 3“** / 3“ 0.04“ / 0.04“ 0.08“4“** / 41/4“ - 4“ / 4“ 0.04“ / 0.08“ 2.0 %
5“** / 51/2“ - 6“** / 61/4“ 0.06“ / 0.06“ 2.0 %
PLAST-GRIP 11/4“** - 11/2“** 0.02“ 0.08“2“** - 3“** 0.04“ 0.08“4“** - 4“ 0.04“ 2.0 %
4.9“* - 6“** 0.06“ 2.0 %
Imperial
US / 180010
* All diameters marked * are shown with actual pipe outside diameters, and are for non-standard pipesizes. All the other diameters are stand pipe sizes.
** All diameters marked ** are shown plastic pipe dimensions.
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4.5 Max. allowable setting gap between pipe ends R
Pipe end gaps occur through misalignment, mounting inaccuracies and changes in length. Such adistance in total must not exceed the mentioned value “R“.
A greater pipe end gap can be accommodated when a strip insert is positioned between the seal lips.
The gasket has to be protected from abrasion by the pipe ends in the following cases by either reducingthe pipe end gap or by using a strip insert (Material: stainless steel 1.4435/316 L, PA/GF or HDPE):
w External over-pressure (e.g. under water)
w Vacuum (negative-pressure)
w Swelling (chemical influence)
w High temperatures
w High levels of mechanical or dynamic loading
w Plastic pipes
1. Axial setting gap between pipe ends 2. Setting gap between pipe endsthrough angular deflection
Strip insert
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Setting gap between pipe ends R
E / 180010
Type of Outside diameter Setting gap between pipe ends RSTRAUB of coupling without with
coupling AD ranges strip insert[mm] [mm] [mm]
GRIP-L 26.9 - 33.7 5 538.0 - 48.3 5 10
54.0 - 60.3 / 84.0 10 1573.0 / 76.1 / 88.9 10 25
100.6 - 104.8 10 15108.0 - 114.3 10 25
154.0 10 30127.0 - 141.3 / 159.0 - 609.6 10 35
METAL-GRIP 33.7 - 54.0 5 1557.0 - 114.3 10 25
133.0 / 139.7 / 159.0 / 168.3 15 30129.0 / 154.0 / 219.1 - 609.6 15 35
COMBI-GRIP 40.0 / 38.0 - 50.0 / 48.3 5 1063.0 / 60.3 - 114.3 / 114.3 10 25
140.0 / 139.7 - 160.0 / 159.0 15 35
PLAST-GRIP 40.0 - 50.0 5 1063.0 - 114.3 10 25125.0 - 160.0 15 35
Metric
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Type of Outside diameter Setting gap between pipe ends RSTRAUB of coupling without with
coupling AD ranges strip insert[inch] [inch] [inch]
GRIP-L 3/4“ - 1“ 0.2 0.211/2“* - 11/2“ 0.2 0.4
21/8“* - 2“ / 3.3“* 0.4 0.621/2“ / 3“* / 3“ 0.4 1.03.96“* - 4.13“* 0.4 0.6
41/4“* / 4“ 0.4 1.06.1“* 0.4 1.2
5“ - 5.56“* / 61/4“* - 24“ 0.4 1.4
METAL-GRIP 1“ - 21/8“* 0.2 0.621/4“* - 4“ 0.4 1.0
51/4“* / 51/2“* / 61/4“* / 6“ 0.6 1.25.1“* / 6.1“* / 8“ - 24“ 0.6 1.4
COMBI-GRIP 11/4“** / 11/2“* - 11/2“** / 11/2“ 0.2 0.42“** / 2“ - 3“** / 3“ 0.4 1.04“** / 41/4“ - 4“ / 4“ 0.4 1.0
5“** / 51/2“ - 6“** / 61/4“ 0.6 1.4
PLAST-GRIP 11/4“** - 11/2“** 0.2 0.42“** - 3“** 0.4 1.04“** - 4“ 0.4 1.0
4.9“* - 6“** 0.6 1.4
Imperial
US / 180010
* All diameters marked * are shown with actual pipe outside diameters, and are for non-standard pipesizes. All the other diameters are stand pipe sizes.
** All diameters marked ** are shown plastic pipe dimensions.
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4.6 Angular deflection α
Angular deflection α
Pipework system, whether buried or installed aboveground, are subject to various movements such assettling of groundworks, loading by traffic, building subsidence or temperature-induced length changes.Additional dynamic stresses are sometimes encountered, especially in such fields as offshore and marineapplications.
STRAUB products are not rigid connections but are flexible joints that permit all around angulardeflection of the pipe axes by up to 5°.
Furthermore they offer considerable safety. The highly efficient anchoring mechanism and the gasketpositioned away from any pressure forces ensure a tension-free and long-life connection even underangular deflection conditions.
Type of Outside diameter Angular deflectionSTRAUB of coupling α
coupling [Degree]
GRIP couplings up to 60.3 mm / 2“ 5°
from 76.1 mm / 3“ 4°
from 219.1 mm / 8“ 2°
w Fresh air supply line in a mine with STRAUB-METAL-GRIP
w As the lines have to be moved periodically, the use of STRAUB-METAL-GRIP made installation simpleand economical.
E / 180010
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Angular deflection test for VdS approval
STRAUB-GRIP-L DN 100 / 4“ / Ø 114.3 / 4.5“ (α = 20° / p = 20 bar / 300psi)
ProblemInstalling „straight“ length of pipe in a semiciruclar configuration with Ø 100 m. No welding from thepipe bends or cutting the pipe ends with an angle. Required angular deflection 6°.
SolutionAbsorption of 6° angular deflection in the STRAUB coupling. Joining pipe sections of 3 m length can beaccomplished with STRAUB-METAL-GRIP and STRAUB-FLEX with strip inserts.
Bank of Canton Waadt, Prilly
Angular deflection test
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4.7 Axial movement ∆l
Axial movement ∆l
Temperature changes in a pipework system result in axial movement which causes tension orcompression stresses. These must be compensated by taking suitable measures.
w Through expansion bows or spring leg
w By installing a STRAUB-GRIP coupling after a change of direction thereby converting theaxial change in length into an angular displacment.
E / 180010
Guiding support
GRIP
Guiding support
GRIP
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4.8 Axial misalignment
According to the DIN standard 2463 the permissible axial misalignment for STRAUB couplings amountsto 1% of OD or a maximum of 3 mm / 0.1 inch.
Axial misalignment can also be converted into an axial deflection or take the form of a cardan linkincorporating two couplings.
As shown below, considerably greater axial misalignments can be accomodated by using the appropriateinstallation procedure.
E / 180010
Axial misalignment
4.9 Resistance against bending and torsionSTRAUB couplings are specifically designed for the absorption of bending forces through flexibleyielding.
This flexibility yields basis for good absorption properties. Please consult our application department.
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4.10 STRAUB-METAL-GRIP on vertical piping
STRAUB-METAL-GRIP pipe couplings are the ideal connection for installing plain ended metal pipesections vertically using axial restraint capabilities while ensuring a perfect seal.
Axial tensile forces are generated in vertical, free-hanging, pumped pressure pipeline. For the calculationof these forces, please consult our application department.
The STRAUB-METAL-GRIP couplings mounted on the pipe can absorb torsion forces that occur whenpumps start or stop.
Application examples:
w Heat exchanger pipework in pits
w Pipework in bridge supports
w Fresh water pump pipelines from springs
w Pumped well pipelines
w Charging and emptying pipes from silos, tanks and vessels
w Risers in towers and tall buildings
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Technical Manual 3/03 Page 49
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4.11 Special order couplings
4.11.1 Electrical conductivity of STRAUB-GRIPSTRAUB-GRIP couplings guarantee the electrical conductivity through the pipe connection because of theanchoring mechanism. STRAUB pipe couplings fully serve as grounding elements according to SEV 1078and ISN 411078. STRAUB-GRIP couplings show adequate low electrical transition resistance (0.3 Vvoltage / contact drop at 500 ampere).
Certifcate No. 93.1.01236.03 issued by the Federal Power Inspectorate gives approval to all STRAUB-GRIP couplings. Our products are authorised to carry the symbol.
Insulated connections (electrical separation) that are incorporated in pipelines for corrosion preventionpurposes are obligatory in certain application (e.g. house connections).
Numerous utility companies and installers achieve this insulated connection by incorporating a length ofplastic pipe in metal pipelines through the use of STRAUB-COMBI-GRIP couplings.
4.11.2 Demagnetised couplingsTest certificate WTD 71 / FGM confirms that the magnetic single measurement of pipe couplings yieldedvalues within the permissible tolerance (0.0000-0.0005 TESLA).
These couplings, which carry the mark „Demagnetised“, can be ordered from STRAUB.
4.11.3 Silicon-free couplingsThese couplings are fabricated in a special assembly area under extreme care and cleanliness conditionsand are individually packaged.
They are mostly used in the chemical and the automotive industry for spray-booth applications.
These couplings, which carry the mark „Silicon-free“, can be ordered from STRAUB.
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Waterworks Zug: Insulated house connection to thewater supply network using STRAUB-COMBI-GRIP 60.3/63.0 mm / 2“/2“ on a PVC-C adapter piece (SVGW9208-2803) (DVGW TS 212 E).