Pipe Restraint Products

SIGMA offers a wide range of both domestic and imported restraint products in PVC and ductile iron pipes. Our extensive product line includes ONE-LOK, PV-LOK, harness restraint, and we stock restraints in 2-48 inch size ranges.

Ductile Iron Pipe Restraint

ONE-LOK™ SLDE Wedge Restraint

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ONE-LOK™ D-SLDE Wedge Restraint (Domestic)

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ONE-LOK™ SSLD Split Wedge Restraint For Existing Pipe

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ONE-LOK™ SLDM Wedge Restraint For Oversized Cast Iron Pipe

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ONE-LOK™ SLDEH Wedge Restraint Bell Harness

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ONE-LOK™ SSLDH Split Wedge Restraint Bell Harness For Existing Pipe

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PV-LOK™ PWP Serration Lock Bell Restraint

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PVC Pipe Restraint

PV-LOK™ PWH for Bell Joint Harness for PVC Pipe

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ONE-LOK™ SLCE Wedge Restraint

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ONE-LOK™ D-SLCE Wedge Restraint (Domestic)

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ONE-LOK™ SLCEH Wedge Restraint Bell Harness

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PV-LOK™ PWM Serration Lock Restraint For Ductile Iron Fittings (CIOD)

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PV-LOK™ PWP Serration Lock Bell Restraint (CIOD)

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PV-LOK™ PWPF Serration Lock Restraint For PVC Pressure Fittings (CIOD)

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PV-LOK™ PVM Serration Lock Restraint For Ductile Iron Fittings (IPS OD)

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PV-LOK™ PVP Serration Lock Bell Restraint (IPS OD)

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PV-LOK™ PVPF Serration Lock Restraint For PVC Pressure Fittings (IPS OD)

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Additional Restraint Applications

SIGMAFLANGE™ Restrained Oversized Flange Adapter Sleeve

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Restraint Product For High Density Polyethylene Pipe (HDPE)

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Restraint Products For C909 PVCO Pipe

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CORRSAFE™ Improved Coating For Exterior Corrosion Protection

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ZIP FLANGE™ Set Screw Adapter Flange For Ductile Iron and Steel Pipe

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