Technical information - Pipes and Flues
Here you can find information about different types of pipe clamps and which types of pipes and pipe parts they are suitable for. You can also learn about material selection and dimensions for pipes and fittings, and how to choose the right clamps to suit your specific needs. Whether you are a hydraulics, plumbing or construction professional, or you work with pipes and fittings as part of your hobby projects, this page can be very helpful in understanding pipe systems and how to choose the right pipe clamps to ensure their durability and performance. Pipes and fittings are fundamental building blocks in many different types of systems, including hydraulic systems, refrigeration systems, and plumbing systems. Pipe clamps are used to hold pipes in place and protect them from vibration, movement and other forces that can affect their performance and durability.
Clamp measurements
All measurements are given in millimetres.
The standard series
| Type | Ø | b | c | d | h |
|---|---|---|---|---|---|
| C2 | 6-12 | 28 | 28 | - | 0,6 |
| C3 | 14-18 | 37 | 28 | 20 | 0,6 |
| C4 | 20-25 | 50 | 36 | 33 | 0,8 |
| C5 | 28-32 | 57 | 44 | 40 | 1 |
| C6 | 35-42 | 69,5 | 57 | 52 | 1 |
Heavy series
| Type | Ø | b | c | d | f | g | h | i |
|---|---|---|---|---|---|---|---|---|
| CP1 | 12-20 | 58 | 33 | 33 | 30 | 70 | 1 | 8 |
| CP2 | 22-30 | 72 | 49 | 45 | 30 | 87 | 1 | 8 |
| CP3 | 30-45 | 87 | 60 | 60 | 30 | 105 | 1,2 | 8 |
| CP4 | 38-70 | 120 | 88 | 90,5 | 45 | 155 | 2 | 10 |
| CP5 | 73-90 | 155 | 118 | 122 | 60 | 200 | 3 | 10 |
| CP6 | 100-121 | 205 | 165 | 168 | 80 | 225 | 3 | 15 |
| CP7 | 133-168 | 245 | 200 | 205 | 80 | 270 | 4 | 15 |
| CP8 | 168-219 | 320 | 270 | 265 | 120 | 340 | 4 | 25 |
| CP9 | 219-324 | 470 | 410 | 395 | 160 | 520 | 10 | 30 |
Double braces
| Type | Ø | b | c | d | e | f | i |
|---|---|---|---|---|---|---|---|
| CF1 | 6-12 | 36 | 27 | 20 | 37 | 0,6 | 4 |
| CF2 | 14-18 | 54 | 26 | 29 | 55 | 0,8 | 4 |
| CF3 | 20-25 | 67 | 37 | 36 | 70 | 1 | 4 |
| CF4 | 28-30 | 81 | 42 | 45 | 85 | 1 | 4 |
| CF5 | 35-42 | 106 | 53 | 56 | 110 | 1,2 | 4 |
Recommended distances for pipe clamps
Standard series and double staples
| Staple type | Pipe dimension (mm) | Distance - L (m) |
|---|---|---|
| Group 1 | 6-12,25 | 0,9 |
| Group 2 | 6-13,25 | 1,0 |
| Group 3 | 14-18 | 1,2 |
| Group 4 | 20-25,4 | 1,5 |
| Group 5 | 28-32 | 1,5 |
| Group 6 | 32-45 | 2,2 |
| Group 7 | 45-54 | 2,7 |
| Group 8 | 57,2-76,1 | 3,2 |
| Group 9 | 88,9-102 | 4,0 |
Heavy series
| Staple type | Pipe dimension (mm) | Distance - L (m) |
|---|---|---|
| Group 1 | 6-20 | 1,0 |
| Group 2 | 20-30 | 1,5 |
| Group 3 | 30-45 | 2,2 |
| Group 4 | 38-50 | 2,2 |
| Group 4 | 53-70 | 3,0 |
| Group 5 | 65-73 | 3,0 |
| Group 5 | 80-90 | 3,5 |
| Group 6 | 100-121 | 4,5 |
| Group 7 | 133-168 | 5,0 |
| Group 8 | 168-219 | 6,0 |
| Group 9 | 166-220 | 6,7 |
Tightening torque and maximum load in the direction of the pipe
All tightening torques and loads in the direction of the pipe apply to pipe clamps that have been tested with steel pipe ST 35.4 with cover plate type "PS" and hexagonal bolt UNI 5737.
Sliding starts when the value “P” is reached.
Pipe clamps standard series
| Polypropylene | Self-extinguishing polyamide | Aluminium | |||||
|---|---|---|---|---|---|---|---|
| Type | Bolt | Tightening torque (Nm) | Maximum load directly on pipe. P (kN) | Tightening torque (Nm) | Maximum load directly on pipe. P (kN) | Tightening torque (Nm) | Maximum load directly on pipe. P (kN) |
| C1 | M6 | 8 | 0,7 | 10 | 0,7 | 12 | 3,6 |
| C2 | M6 | 8 | 1,2 | 10 | 0,9 | 12 | 4,3 |
| C3 | M6 | 8 | 1,5 | 10 | 1,0 | 12 | 4,4 |
| C4 | M6 | 8 | 1,7 | 10 | 1,8 | 12 | 4,8 |
| C5 | M6 | 8 | 1,8 | 10 | 1,9 | 12 | 5,2 |
| C6 | M6 | 8 | 2,0 | 10 | 2,1 | 12 | 7,5 |
| C7 | M6 | 8 | 2,2 | 10 | 2,8 | 12 | 9,0 |
| C8 | M6 | 8 | 2,3 | 10 | 2,5 | ||
| C9 | M6 | 8 | 2,4 | 10 | 2,5 | ||
Pipe clamps heavy series
| Polypropylene | Self-extinguishing polyamide | Aluminium | |||||
|---|---|---|---|---|---|---|---|
| Type | Bolt | Tightening torque (Nm) | Maximum load directly on pipe. P (kN) | Tightening torque (Nm) | Maximum load directly on pipe. P (kN) | Tightening torque (Nm) | Maximum load directly on pipe. P (kN) |
| CP1 | M10 | 13 | 1,8 | 21 | 4,5 | 32 | 13,0 |
| CP2 | M10 | 13 | 3,0 | 21 | 4,7 | 32 | 16,0 |
| CP3 | M10 | 15 | 3,5 | 25 | 5,2 | 37 | 16,5 |
| CP4 | M12 | 30 | 8,5 | 40 | 9,5 | 55 | 30,5 |
| CP5 | M16 | 46 | 11,5 | 56 | 27,0 | 125 | 36,4 |
| CP6 | M20 | 80 | 15,0 | 155 | 25,0 | 225 | 71,7 |
| CP7 | M20 | 100 | 30,0 | 185 | 34,0 | 235 | 62,5 |
| CP8 | M30 | 190 | 41,0 | 360 | 50,0 | 500 | 86,7 |
| CP9 | M30 | 210 | 125,0 | 380 | 130,0 | 500 | 190,5 |
Pipe clamp double clamp
| Polypropylene | Self-extinguishing polyamide | ||||
|---|---|---|---|---|---|
| Type | Bolt | Tightening torque (Nm) | Maximum load directly on pipe. P (kN) | Tightening torque (Nm) | Maximum load directly on pipe. P (kN) |
| CF1 | M6 | 6 | 1,1 | 6 | 1,1 |
| CF2 | M8 | 13 | 2,5 | 13 | 2,5 |
| CF3 | M8 | 13 | 2,1 | 13 | 2,1 |
| CF4 | M8 | 13 | 2,9 | 13 | 3,1 |
| CF5 | M8 | 9 | 2,2 | 9 | 2,7 |
Pipe clamp body
| Mechanical properties | Test method | Copolymer Polypropylene “PP”. High resilience and yield strength 3060MN5 | Polyamide “PA” Fiberglass reinforced and self-extinguishing AG5 FR PH2 0160 Black | Aluminum alloy EN AB-ALSi11Cu2(Fe) |
|---|---|---|---|---|
| Bending strength | DIN 53452 | 43 N/mm2 | 230 N/mm2 | 70 N/mm2 |
| Impact strength | DIN 53453 | 11 KJ/m2 | 40 KJ/m2 | - |
| Compression (pressure) ironing | ASTM D 695 | 12000 N/mm2 | 160 N/mm2 | HB 500 nice a 600 N/mm2 |
| Modulus strength | DIN 53452 | 1400 N/mm2 | 9000 N/mm2 | 68000 nice a 78000 N/mm2 |
| Stretch limit | DIN 53455 | 35 N/mm2 | 160 N/mm2 | 170 nice a 220 N/mm2 |
Pipe clamp body
| Thermal properties | Test method | Copolymer Polypropylene “PP”. High resilience and yield strength 3060MN5 | Polyamide “PA” Fiberglass reinforced and self-extinguishing AG5 FR PH2 0160 Black | Aluminum alloy EN AB-ALSi11Cu2(Fe) |
|---|---|---|---|---|
| Flammability | UL 94 | HB | V0 | |
| Recommended min/max temperature | -30° +90°C | -40° + 120°C | Upp till +400°C- |
Pipe clamp body
| Electrical properties | Test method | Copolymer Polypropylene “PP”. High resilience and yield strength 3060MN5 | Polyamide “PA” Fiberglass reinforced and self-extinguishing AG5 FR PH2 0160 Black | Aluminum alloy EN AB-ALSi11Cu2(Fe) |
|---|---|---|---|---|
| Own resistance | DIN 53482 | 1018 Ohm x cm | 1015 Ohm x cm |
Pipe clamp body
| Chemical properties | Test method | Copolymer Polypropylene “PP”. High resilience and yield strength 3060MN5 | Polyamide “PA” Fiberglass reinforced and self-extinguishing AG5 FR PH2 0160 Black | Aluminum alloy EN AB-ALSi11Cu2(Fe) |
|---|---|---|---|---|
| Weak acid - alkaline solution | Limited resistance | Good resistance | ||
| Gasoline - mineral oils | Good resistance | Good resistance | ||
| Alcohol - other oils - sea water | Good resistance | Good resistance |
Metal components
| Material type | Standard | yield strength Rm N/mm2 | Hardness |
|---|---|---|---|
| Aluminum alloy EN AB-AISi11Cu2(Fe) | EN AB - 46100 | 265-295 | 80 HBS |
| Steel Fairy 360 (S235JR) | UNI EN - 10025 | 360-510 | |
| Steel Fairy Fe 430B | UNI EN - 10025 | 330 | |
| Steel Fairy P11 | UNI EN 10111 | 360-390 | 70 HRB |
| Steel AVP (11 SMn Pb 37) | UNI EN 10227-3 | 380-700 | 179 HB |
| Stainless steel AISI 316 L (X2CrNiMo17-12-2) | UNI EN 10227-3UNI EN 10088-2 | 530-680 | |
| Zamak | UNI EN 3718 |
Used materials
| Product | Material | Item type |
|---|---|---|
| Staple | Copolymer Polypropylene “PP” High resilience and yield strength | |
| Polyamide “PA” Fiberglass reinforced and self-extinguishing | The standard series - “CF”-the series - “S”-series and the Heavy series | |
| Aluminum alloy EN AB-AISi11Cu2(Fe) | The standard series - The heavy series | |
| Steel FE 430 B | Super heavy series | |
| Bushings and O-rings | Rubber compound no NBR 70 | Art. AG - BG |
| Plates and accessories | Stainless steel AISI 316L | Specified products |
| Steel Fairy 360 | Species. BB | |
| Steel Fairy 430B | Art. P CP -PS CP - CDPS CP - CDP CP - PB CP - PA - PAM - CL - CM - CP - CQ/L/M/P | |
| Steel Fairy P11 | Art. P - PL - PS - PB - PD - PM - PM..1P - PM..2P - PCF - PSCF - PBCF - PMCF - PP - PPM - BBP | |
| Steel AVP | Species. VA - B - DF P | |
| Zamak | Species. DF M06 - DF M08 | |
| Surface treatment | All metal components are electrolytically galvanized. Fairy ZN 8 c (white) Fe ZN 8 c 2C (yellow). Only the "BB" carrier rail is "SENDIZIMIR" galvanised. | |
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Technical information - Pipes and Flues
Here you can find information about different types of pipe clamps and which types of pipes and pipe parts they are suitable for. You can also learn about material selection and dimensions for pipes and fittings, and how to choose the right clamps to suit your specific needs. Whether you are a hydraulics, plumbing or construction professional, or you work with pipes and fittings as part of your hobby projects, this page can be very helpful in understanding pipe systems and how to choose the right pipe clamps to ensure their durability and performance. Pipes and fittings are fundamental building blocks in many different types of systems, including hydraulic systems, refrigeration systems, and plumbing systems. Pipe clamps are used to hold pipes in place and protect them from vibration, movement and other forces that can affect their performance and durability.
Clamp measurements
All measurements are given in millimetres.
The standard series
| Type | Ø | b | c | d | h |
|---|---|---|---|---|---|
| C2 | 6-12 | 28 | 28 | - | 0,6 |
| C3 | 14-18 | 37 | 28 | 20 | 0,6 |
| C4 | 20-25 | 50 | 36 | 33 | 0,8 |
| C5 | 28-32 | 57 | 44 | 40 | 1 |
| C6 | 35-42 | 69,5 | 57 | 52 | 1 |
Heavy series
| Type | Ø | b | c | d | f | g | h | i |
|---|---|---|---|---|---|---|---|---|
| CP1 | 12-20 | 58 | 33 | 33 | 30 | 70 | 1 | 8 |
| CP2 | 22-30 | 72 | 49 | 45 | 30 | 87 | 1 | 8 |
| CP3 | 30-45 | 87 | 60 | 60 | 30 | 105 | 1,2 | 8 |
| CP4 | 38-70 | 120 | 88 | 90,5 | 45 | 155 | 2 | 10 |
| CP5 | 73-90 | 155 | 118 | 122 | 60 | 200 | 3 | 10 |
| CP6 | 100-121 | 205 | 165 | 168 | 80 | 225 | 3 | 15 |
| CP7 | 133-168 | 245 | 200 | 205 | 80 | 270 | 4 | 15 |
| CP8 | 168-219 | 320 | 270 | 265 | 120 | 340 | 4 | 25 |
| CP9 | 219-324 | 470 | 410 | 395 | 160 | 520 | 10 | 30 |
Double braces
| Type | Ø | b | c | d | e | f | i |
|---|---|---|---|---|---|---|---|
| CF1 | 6-12 | 36 | 27 | 20 | 37 | 0,6 | 4 |
| CF2 | 14-18 | 54 | 26 | 29 | 55 | 0,8 | 4 |
| CF3 | 20-25 | 67 | 37 | 36 | 70 | 1 | 4 |
| CF4 | 28-30 | 81 | 42 | 45 | 85 | 1 | 4 |
| CF5 | 35-42 | 106 | 53 | 56 | 110 | 1,2 | 4 |
Recommended distances for pipe clamps
Standard series and double staples
| Staple type | Pipe dimension (mm) | Distance - L (m) |
|---|---|---|
| Group 1 | 6-12,25 | 0,9 |
| Group 2 | 6-13,25 | 1,0 |
| Group 3 | 14-18 | 1,2 |
| Group 4 | 20-25,4 | 1,5 |
| Group 5 | 28-32 | 1,5 |
| Group 6 | 32-45 | 2,2 |
| Group 7 | 45-54 | 2,7 |
| Group 8 | 57,2-76,1 | 3,2 |
| Group 9 | 88,9-102 | 4,0 |
Heavy series
| Staple type | Pipe dimension (mm) | Distance - L (m) |
|---|---|---|
| Group 1 | 6-20 | 1,0 |
| Group 2 | 20-30 | 1,5 |
| Group 3 | 30-45 | 2,2 |
| Group 4 | 38-50 | 2,2 |
| Group 4 | 53-70 | 3,0 |
| Group 5 | 65-73 | 3,0 |
| Group 5 | 80-90 | 3,5 |
| Group 6 | 100-121 | 4,5 |
| Group 7 | 133-168 | 5,0 |
| Group 8 | 168-219 | 6,0 |
| Group 9 | 166-220 | 6,7 |
Tightening torque and maximum load in the direction of the pipe
All tightening torques and loads in the direction of the pipe apply to pipe clamps that have been tested with steel pipe ST 35.4 with cover plate type "PS" and hexagonal bolt UNI 5737.
Sliding starts when the value “P” is reached.
Pipe clamps standard series
| Polypropylene | Self-extinguishing polyamide | Aluminium | |||||
|---|---|---|---|---|---|---|---|
| Type | Bolt | Tightening torque (Nm) | Maximum load directly on pipe. P (kN) | Tightening torque (Nm) | Maximum load directly on pipe. P (kN) | Tightening torque (Nm) | Maximum load directly on pipe. P (kN) |
| C1 | M6 | 8 | 0,7 | 10 | 0,7 | 12 | 3,6 |
| C2 | M6 | 8 | 1,2 | 10 | 0,9 | 12 | 4,3 |
| C3 | M6 | 8 | 1,5 | 10 | 1,0 | 12 | 4,4 |
| C4 | M6 | 8 | 1,7 | 10 | 1,8 | 12 | 4,8 |
| C5 | M6 | 8 | 1,8 | 10 | 1,9 | 12 | 5,2 |
| C6 | M6 | 8 | 2,0 | 10 | 2,1 | 12 | 7,5 |
| C7 | M6 | 8 | 2,2 | 10 | 2,8 | 12 | 9,0 |
| C8 | M6 | 8 | 2,3 | 10 | 2,5 | ||
| C9 | M6 | 8 | 2,4 | 10 | 2,5 | ||
Pipe clamps heavy series
| Polypropylene | Self-extinguishing polyamide | Aluminium | |||||
|---|---|---|---|---|---|---|---|
| Type | Bolt | Tightening torque (Nm) | Maximum load directly on pipe. P (kN) | Tightening torque (Nm) | Maximum load directly on pipe. P (kN) | Tightening torque (Nm) | Maximum load directly on pipe. P (kN) |
| CP1 | M10 | 13 | 1,8 | 21 | 4,5 | 32 | 13,0 |
| CP2 | M10 | 13 | 3,0 | 21 | 4,7 | 32 | 16,0 |
| CP3 | M10 | 15 | 3,5 | 25 | 5,2 | 37 | 16,5 |
| CP4 | M12 | 30 | 8,5 | 40 | 9,5 | 55 | 30,5 |
| CP5 | M16 | 46 | 11,5 | 56 | 27,0 | 125 | 36,4 |
| CP6 | M20 | 80 | 15,0 | 155 | 25,0 | 225 | 71,7 |
| CP7 | M20 | 100 | 30,0 | 185 | 34,0 | 235 | 62,5 |
| CP8 | M30 | 190 | 41,0 | 360 | 50,0 | 500 | 86,7 |
| CP9 | M30 | 210 | 125,0 | 380 | 130,0 | 500 | 190,5 |
Pipe clamp double clamp
| Polypropylene | Self-extinguishing polyamide | ||||
|---|---|---|---|---|---|
| Type | Bolt | Tightening torque (Nm) | Maximum load directly on pipe. P (kN) | Tightening torque (Nm) | Maximum load directly on pipe. P (kN) |
| CF1 | M6 | 6 | 1,1 | 6 | 1,1 |
| CF2 | M8 | 13 | 2,5 | 13 | 2,5 |
| CF3 | M8 | 13 | 2,1 | 13 | 2,1 |
| CF4 | M8 | 13 | 2,9 | 13 | 3,1 |
| CF5 | M8 | 9 | 2,2 | 9 | 2,7 |
Pipe clamp body
| Mechanical properties | Test method | Copolymer Polypropylene “PP”. High resilience and yield strength 3060MN5 | Polyamide “PA” Fiberglass reinforced and self-extinguishing AG5 FR PH2 0160 Black | Aluminum alloy EN AB-ALSi11Cu2(Fe) |
|---|---|---|---|---|
| Bending strength | DIN 53452 | 43 N/mm2 | 230 N/mm2 | 70 N/mm2 |
| Impact strength | DIN 53453 | 11 KJ/m2 | 40 KJ/m2 | - |
| Compression (pressure) ironing | ASTM D 695 | 12000 N/mm2 | 160 N/mm2 | HB 500 nice a 600 N/mm2 |
| Modulus strength | DIN 53452 | 1400 N/mm2 | 9000 N/mm2 | 68000 nice a 78000 N/mm2 |
| Stretch limit | DIN 53455 | 35 N/mm2 | 160 N/mm2 | 170 nice a 220 N/mm2 |
Pipe clamp body
| Thermal properties | Test method | Copolymer Polypropylene “PP”. High resilience and yield strength 3060MN5 | Polyamide “PA” Fiberglass reinforced and self-extinguishing AG5 FR PH2 0160 Black | Aluminum alloy EN AB-ALSi11Cu2(Fe) |
|---|---|---|---|---|
| Flammability | UL 94 | HB | V0 | |
| Recommended min/max temperature | -30° +90°C | -40° + 120°C | Upp till +400°C- |
Pipe clamp body
| Electrical properties | Test method | Copolymer Polypropylene “PP”. High resilience and yield strength 3060MN5 | Polyamide “PA” Fiberglass reinforced and self-extinguishing AG5 FR PH2 0160 Black | Aluminum alloy EN AB-ALSi11Cu2(Fe) |
|---|---|---|---|---|
| Own resistance | DIN 53482 | 1018 Ohm x cm | 1015 Ohm x cm |
Pipe clamp body
| Chemical properties | Test method | Copolymer Polypropylene “PP”. High resilience and yield strength 3060MN5 | Polyamide “PA” Fiberglass reinforced and self-extinguishing AG5 FR PH2 0160 Black | Aluminum alloy EN AB-ALSi11Cu2(Fe) |
|---|---|---|---|---|
| Weak acid - alkaline solution | Limited resistance | Good resistance | ||
| Gasoline - mineral oils | Good resistance | Good resistance | ||
| Alcohol - other oils - sea water | Good resistance | Good resistance |
Metal components
| Material type | Standard | yield strength Rm N/mm2 | Hardness |
|---|---|---|---|
| Aluminum alloy EN AB-AISi11Cu2(Fe) | EN AB - 46100 | 265-295 | 80 HBS |
| Steel Fairy 360 (S235JR) | UNI EN - 10025 | 360-510 | |
| Steel Fairy Fe 430B | UNI EN - 10025 | 330 | |
| Steel Fairy P11 | UNI EN 10111 | 360-390 | 70 HRB |
| Steel AVP (11 SMn Pb 37) | UNI EN 10227-3 | 380-700 | 179 HB |
| Stainless steel AISI 316 L (X2CrNiMo17-12-2) | UNI EN 10227-3UNI EN 10088-2 | 530-680 | |
| Zamak | UNI EN 3718 |
Used materials
| Product | Material | Item type |
|---|---|---|
| Staple | Copolymer Polypropylene “PP” High resilience and yield strength | |
| Polyamide “PA” Fiberglass reinforced and self-extinguishing | The standard series - “CF”-the series - “S”-series and the Heavy series | |
| Aluminum alloy EN AB-AISi11Cu2(Fe) | The standard series - The heavy series | |
| Steel FE 430 B | Super heavy series | |
| Bushings and O-rings | Rubber compound no NBR 70 | Art. AG - BG |
| Plates and accessories | Stainless steel AISI 316L | Specified products |
| Steel Fairy 360 | Species. BB | |
| Steel Fairy 430B | Art. P CP -PS CP - CDPS CP - CDP CP - PB CP - PA - PAM - CL - CM - CP - CQ/L/M/P | |
| Steel Fairy P11 | Art. P - PL - PS - PB - PD - PM - PM..1P - PM..2P - PCF - PSCF - PBCF - PMCF - PP - PPM - BBP | |
| Steel AVP | Species. VA - B - DF P | |
| Zamak | Species. DF M06 - DF M08 | |
| Surface treatment | All metal components are electrolytically galvanized. Fairy ZN 8 c (white) Fe ZN 8 c 2C (yellow). Only the "BB" carrier rail is "SENDIZIMIR" galvanised. | |