Water & Industrial Restraining Solutions

Smith-Blair Joint Restraints provide a quick and easy way to restrain hydrants, values, pipe, bells and fittings used in water and wastewater systems. We stringently test all our products to provide levels of strength, durability and efficiency that meet or exceeds suggested industry standards. Next time you need the industry's best for a restraining application, specify Smith-Blair.

Water & Industrial Application and Selection GuideLiterature Request

Cam-Lock™ Joint Restraints

Smith-Blair Cam-Lock Joint Restraints save labor by providing superior restraint with fewer wedges and install on IPS size PVC without modifications. The Cam-Lock's lower bolt torque and wider wedges reduce pipe stress. Cam-Lock Features include color-coded nuts and wedges, epoxy coating, visible wedge engagement and longer T-bolts. Available in sizes 3" through 24".

111 Cam-Lock Joint Restraint - For restraining pipe ends on MJ fittings

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120 Cam-Lock Joint Restraint - For restraining pipe ends on MJ fittings

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Bell-Lock™ Joint Restraints

Smith-Blair Bell-Lock Joint Restraints provide a quick and efficent means of restraining hydrants, valves, pipe bells and fittings used in water and wastewater systems. Bell-Lock features include recessed shoulders for single wrench installation, compatible with standard MJ and some push-on style fittings. Available in sizes 4" through 12".

115 MJ-Lock Joint Restraint - For restraining pipe ends to mechanical joint valves, fittings, or hydrants

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136 Bell-Lock Joint Restraint - For restraining pipe bells, hydrants, valves and fittings

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165 Bell-Lock Joint Restraint - For restraining pipe bells, hydrants, valves and fittings

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Pipe-Lock™ Joint Restraint Couplings

Smith-Blair Pipe-Lock Joint Restraint Couplings are fabricated steel sleeve restraint couplings that can be used to connect and restrain plain end pipe to plain end pipe.

471 Pipe-Lock, Straight, DI X DI - For connecting plain end D.I. to plain end D.I.

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472 Pipe-Lock, Straight, PVC x PVC - For connecting plain end PVC to plain end PVC

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473 Pipe-Lock, Straight, PVC x DI - For connecting plain end D.I. to plain end PVC

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474 Pipe-Lock, Reducing, DI X DI - For connecting plain end D.I. to plain end D.I.

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475 Pipe-Lock, Reducing, PVC x PVC - For connecting plain end PVC to plain end PVC

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476 Pipe-Lock, Reducing, PVC x DI - For connecting plain end PVC to plain end D.I.

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477 Pipe-Lock, Reducing, Sleeve Only - For joining plain-end pipe ends of different outside diameters

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477 Pipe-Lock, Straight, Sleeve Only - For joining plain-end pipe ends

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Flange-Lock™ Flange Coupling Adapters

Smith-Blair Flange-Lock Joint Restraints restrain plain end pipe to plain end pipe and can join IPS PVC or ductile iron OD PVC to ductile iron or carbon steel.

911 Flange Lock, Flange Coupling Adapter - For connecting & Restraining Flanged to plain end pipe

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920 Flange Lock, Flange Coupling Adapter - For connecting & Restraining Flanged to plain end pipe

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923 Flange Lock, Flange Coupling Adapter - For weldment only - Straight and Reducing

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AWWA M-11 Style Harness Assembly

Smith-Blair Harness Assemblies should be used where calculations show the forces resulting from a lateral connection, change in direction of the pipeline, unstable soil, thermal expansion/contraction or other service conditions could cause the pipe to move out of the coupling.

AWWA M11 Harness Assembly - For restraining steel pipe joints

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Anchor Studs

Smith-Blair Anchor Studs are designed as an alternative coupling method to harness assemblies for applications where moderate longitudinal stresses are encountered.

Anchor Studs - For restraining steel pipe joints

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EZ-W Restraint Couplings

Smith-Blair EZ-W Restraint Couplings for water service are designed with push on gaskets and engineered to simplify installation, restrain the pipe joint and ensure a tight seal. EZ-W Couplings can be used to connect IPS PE to steel pipes 1" through 12" diameters and ductile iron to IPS PE, PVC or steel pipe, 3", 4", 6", 8" and 12".

Maxi-Grip EZ-W - For restraining coupling for PE, Ductile, PVC, and Steel Pipe-DIP sizes 3", 4", 6", 8" and 12"; IPS 1" thru 12"

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Maxi-Grip EZ-W Restrained Flanged Coupling Adapter - For restraining and connecting most types of flange fitting to IPS and DIPS

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Restraint Plates, Tie Rods and Nuts

907 Restraint Plates, Tie Rods and Nuts - For restraining flange to flange pipe.

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