Significant benefits over alternative solutions

Certa-Lok™ offers significant benefits over alternative solutions

Certa-Lok™ restrained joint PVC pipe systems are uniquely designed to offer significant cost, performance, safety and environmental advantages over competing joint options and materials. The inherent simplicity, outstanding strength and immediate serviceability of the Certa-Lok joint, coupled with the unique characteristics of PVC pipe, deliver powerful advantages that apply to a wide variety of user needs.

Simple, fast installation – far less time and effort
Can be pushed as well as pulled – flexible and reliable
Tool-free assembly – no solvents or special butt-fusion equipment needed
Maintains watertight seal even after multiple assembly/disassembly cycles – a sustainable alternative to constantly buying replacement pipe joints
Extremely resistant to harsh environments, acids and most chemicals – corrosion resistance
Excellent impact and tensile strength – better performance plus the additional benefits of thinner pipe

Certa-Lok is made in the United States and trusted around the world.

How is Certa-Lok™ assembled?

The Certa-Lok system consists of three critical elements:

Precision, machine-cut grooves in the spigot and bell end of the pipe (or the coupling)
Elastomeric O-ring that provides a watertight pressure system seal
One or more flexible nylon splines that form a circumferential lock in the joint when inserted

Assembling Certa-Lok is a simple three-step process:

Clean both sides of the pipe to be joined and apply a light coating of lube to the O-ring.

Insert the spigot end of the pipe into the integral bell end of the next pipe (or alternatively, into one end of a coupling).

Insert the spline into the open hole on the side of the pipe and push it in as far as it will go.

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Certa-Lok Restrained Joint PVC Pipe and Fittings