Resources › Restraint Selection Tool
Restraint selection tool.
Match the pipe and the joint to the SIGMA restraint that fits.
- Ductile iron, steel, PVC and PVCO pipe
- The pressure rating at your size
- Links to the product pages
Find the restraint for your joint.
Start with the pipe. Each result shows its pressure rating.
No restraint in this tool is rated for that combination. Try another class or size, or ask your regional team.
Find Your Regional TeamA restraint not listed here may still fit. Ask your regional team.
Every rating in this tool
| Restraint | Class | Sizes (in.) | Rating (psi) |
|---|---|---|---|
| Ductile iron: Mechanical joint fitting | |||
| ONE-LOK SLDE | 3 to 16 | 350 | |
| ONE-LOK SLDE | 18 to 64 | 250 | |
| ONE-LOK SLDE-X | 3 to 16 | 350 | |
| ONE-LOK SLDE-X | 18 to 64 | 250 | |
| ONE-LOK D-SLDE | 3 to 16 | 350 | |
| ONE-LOK D-SLDE | 18 to 48 | 250 | |
| ONE-LOK SSLD | 4 to 16 | 350 | |
| ONE-LOK SSLD | 18 to 36 | 250 | |
| ONE-LOK SSLD | 42 | 200 | |
| ONE-LOK SSLD | 48 | 175 | |
| ONE-LOK T-SLDE | 4 to 16 | 700 | |
| ONE-LOK T-SLDE | 18 to 24 | 400 | |
| ONE-LOK T-SLDE | 30 to 48 | 350 | |
| Ductile iron: Bell joint, pipe to pipe | |||
| ONE-LOK SLDEH | 3 to 16 | 350 | |
| ONE-LOK SLDEH | 18 to 48 | 250 | |
| ONE-LOK SSLDH | 4 to 8 | 350 | |
| ONE-LOK SSLDH | 10 to 16 | 300 | |
| ONE-LOK SSLDH | 18 to 36 | 250 | |
| ONE-LOK SSLDH | 42 | 200 | |
| PV-LOK PWP | 4 to 8 | 250 | |
| PV-LOK PWP | 10 to 12 | 200 | |
| Steel, Sch. 40 and heavier: Mechanical joint fitting | |||
| ONE-LOK SLDE | 4 to 12 | 350 | |
| Oversized pipe, Class C and D: Mechanical joint fitting | |||
| ONE-LOK SLDM | 4 to 14 | 250 | |
| ONE-LOK SLDM | 16 | 200 | |
| ONE-LOK SLDM | 20 | 150 | |
| PVC, C900 (CIOD): Mechanical joint fitting | |||
| ONE-LOK SLCE | DR14 | 4 to 24 | 305 |
| ONE-LOK SLCE | DR17 | 4 to 30 | 250 |
| ONE-LOK SLCE | DR18 | 4 to 36 | 235 |
| ONE-LOK SLCE | DR21 | 4 to 42 | 200 |
| ONE-LOK SLCE | DR25 | 4 to 60 | 165 |
| ONE-LOK SLCE | DR27.5 | 4 to 60 | 150 |
| ONE-LOK SLCE | DR32.5 | 14 to 60 | 125 |
| ONE-LOK SLCE | DR41 | 14 to 60 | 100 |
| ONE-LOK SLCE | DR51 | 18 to 60 | 80 |
| ONE-LOK SLCS | DR14 | 4 to 12 | 305 |
| ONE-LOK SLCS | DR17 | 4 to 12 | 250 |
| ONE-LOK SLCS | DR18 | 4 to 12 | 235 |
| ONE-LOK SLCS | DR21 | 4 to 12 | 200 |
| ONE-LOK SLCS | DR25 | 4 to 12 | 165 |
| ONE-LOK SLCS | DR27.5 | 4 to 12 | 150 |
| PV-LOK PWM | DR14 | 4 to 12 | 305 |
| PV-LOK PWM | DR14 | 14 to 16 | 305 |
| PV-LOK PWM | DR18 | 4 to 12 | 235 |
| PV-LOK PWM | DR18 | 14 to 24 | 235 |
| PV-LOK PWM | DR25 | 4 to 12 | 165 |
| PV-LOK PWM | DR25 | 14 to 36 | 165 |
| PV-LOK PWM | DR32.5 | 14 to 48 | 125 |
| PV-LOK PWM | DR41 | 14 to 48 | 100 |
| PV-LOK PWM | DR51 | 18 to 48 | 80 |
| PVC, C900 (CIOD): Bell joint, pipe to pipe | |||
| PV-LOK PWP | DR14 | 4 to 24 | 305 |
| PV-LOK PWP | DR17 | 4 to 30 | 250 |
| PV-LOK PWP | DR18 | 4 to 36 | 235 |
| PV-LOK PWP | DR21 | 4 to 42 | 200 |
| PV-LOK PWP | DR25 | 4 to 48 | 165 |
| PV-LOK PWP | DR27.5 | 4 to 48 | 150 |
| PV-LOK PWP | DR32.5 | 14 to 48 | 125 |
| PV-LOK PWP | DR41 | 14 to 48 | 100 |
| PV-LOK PWP | DR51 | 18 to 48 | 80 |
| ONE-LOK SLCEH | DR14 | 4 to 12 | 305 |
| ONE-LOK SLCEH | DR18 | 4 to 12 | 235 |
| ONE-LOK SLCEH | DR25 | 4 to 12 | 165 |
| PVC, IPS: Mechanical joint fitting | |||
| ONE-LOK SLCE | SDR17 | 3 to 12 | 250 |
| ONE-LOK SLCE | SDR21 | 3 to 12 | 200 |
| ONE-LOK SLCE | SDR26 | 3 to 12 | 160 |
| ONE-LOK SLCE | SDR32.5 | 3 to 12 | 125 |
| ONE-LOK SLCE | SDR41 | 3 to 12 | 100 |
| ONE-LOK SLCS | SDR17 | 3 to 12 | 250 |
| ONE-LOK SLCS | SDR21 | 3 to 12 | 200 |
| ONE-LOK SLCS | SDR26 | 3 to 12 | 160 |
| ONE-LOK SLCS | SDR32.5 | 3 to 12 | 125 |
| ONE-LOK SLCS | SDR41 | 3 to 12 | 100 |
| PV-LOK PVM | SDR17 | 2 to 12 | 250 |
| PV-LOK PVM | SDR21 | 2 to 12 | 200 |
| PV-LOK PVM | SDR26 | 2 to 12 | 160 |
| PVC, IPS: Bell joint, pipe to pipe | |||
| PV-LOK PVP | SDR17 | 2 to 12 | 250 |
| PV-LOK PVP | SDR21 | 2 to 12 | 200 |
| PV-LOK PVP | SDR26 | 2 to 12 | 160 |
| PVCO, C909: Mechanical joint fitting | |||
| ONE-LOK SLCE | 165 psi class | 4 to 30 | 165 |
| ONE-LOK SLCE | 235 psi class | 4 to 30 | 235 |
| ONE-LOK SLCS | 165 psi class | 4 to 12 | 165 |
| ONE-LOK SLCS | 235 psi class | 4 to 12 | 235 |
| PV-LOK PWM | 165 psi class | 4 to 30 | 165 |
| PV-LOK PWM | 235 psi class | 4 to 30 | 235 |
| PVCO, C909: Bell joint, pipe to pipe | |||
| PV-LOK PWP | 165 psi class | 4 to 30 | 165 |
| PV-LOK PWP | 235 psi class | 4 to 30 | 235 |
- Check the current submittal against your spec.
- ONE-LOK SSLD on Ductile iron: Not for plain end fittings, per its spec sheet.
- ONE-LOK SSLDH on Ductile iron: Not for plain end fittings, per its spec sheet.
- ONE-LOK SLDE on Steel, Sch. 40 and heavier: Needs a transition gasket on steel pipe.
- ONE-LOK SLCE on PVC, IPS: Needs a transition gasket on IPS pipe, per its catalog.
- ONE-LOK SLCS on PVC, IPS: Needs a transition gasket on IPS pipe, per its catalog.
- ONE-LOK SLCS on PVCO, C909: Its catalog names one brand of C909 pipe. Check the catalog before you specify.
- Ductile iron: Check each restraint's catalog for pipe class limits.
- Oversized pipe, Class C and D: Class A and B outside diameters are not in this tool yet.
- Oversized pipe, Class C and D: Cast iron pipe with Class A and B outside diameters takes the standard ONE-LOK SLDE. Ask your regional team for the rating.
- PVC, C900 (CIOD): Push-on fittings and PVC fittings are not in this tool yet.
- PVC, C900 (CIOD): Also not in this tool yet, among others: PV-LOK PWM on DR21 pipe, and PV-LOK PWPF, PWH, PTP, PTM and PTPF.
- PVC, IPS: Not in this tool yet, among others: PV-LOK PVPF-S.
- HDPE pipe is not in this tool yet.
Need the length to restrain?
The Pipe Restraint Calculator works out the length of pipe requiring restraint at each fitting.