Pipe Restraint Products | SIGMA Corporation

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. We stock products in 2-64 inch size ranges.

Ductile Iron Pipe Restraint

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ONE-LOK™ D-SLDE Wedge Restraint (Domestic) 859.21 KB

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ONE-LOK™ SLDE Wedge Restraint 1.92 MB

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ONE-LOK™ SLDEH Wedge Restraint Bell Harness 921.22 KB

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ONE-LOK™ SLDM Wedge Restraint For Oversized Cast Iron Pipe 1.04 MB

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ONE-LOK™ SSLD Split Wedge Restraint For Existing Pipe 1.18 MB

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ONE-LOK™ SSLDH Split Wedge Restraint Bell Harness For Existing Pipe 1.16 MB

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ONE-LOK™ T-SLDE Tandem Restraint for High Pressure Ductile Iron Pipe 1.18 MB

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PV-LOK™ PWP Serration Lock Bell Restraint 1.09 MB

PVC Pipe Restraint

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ONE-LOK™ D-SLCE Wedge Restraint (Domestic) 2.77 MB

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ONE-LOK™ SLC Wedge Restraint 1,020.87 KB

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ONE-LOK™ SLCE Wedge Restraint 2.63 MB

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ONE-LOK™ SLCEH Wedge Restraint Bell Harness 2.45 MB

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PV-LOK™ PVM Serration Lock Restraint For Ductile Iron Fittings (IPS OD) 2.02 MB

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PV-LOK™ PVP Serration Lock Bell Restraint (IPS OD) 1.99 MB

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PV-LOK™ PVPF Serration Lock Restraint For PVC Pressure Fittings (IPS OD) 1.95 MB

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PV-LOK™ PWH for Bell Joint Harness for PVC Pipe 2.19 MB

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PV-LOK™ PWM Serration Lock Restraint For Ductile Iron Fittings (CIOD) 2.52 MB

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PV-LOK™ PWP Serration Lock Bell Restraint (CIOD) 2.64 MB

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PV-LOK™ PWPF Serration Lock Restraint For PVC Pressure Fittings (CIOD) 3.00 MB

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PV-LOK™ Series D-PWP for Bell Joint Restraint (Domestic) 1.56 MB

Additional Restraint Applications

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CORRSAFE™ Improved Coating For Exterior Corrosion Protection 2.10 MB

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PV-LOK Series PS Pipe Stop for PVC Pipe 379.33 KB

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Restraint Product For High Density Polyethylene Pipe (HDPE) 1.70 MB

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Restraint Products For C909 PVCO Pipe 609.50 KB

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SIGMAFLANGE™ Restrained Oversized Flange Adapter Sleeve 2.19 MB

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SIGMAFLANGE™ Universal Joint for Flanged Fittings, Flanged Pipes & Valves 909.87 KB

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ZIP FLANGE™ Set Screw Adapter Flange For Ductile Iron and Steel Pipe 2.54 MB