JCM Industrial Fitting Typical Specifications 01 12 2024

Product Specification

JCM Restrainers for pipe sizes 14” and larger JCM 610 Sur-Grip Fitting Restrainer JCM 611 Sur-Grip Fitting Restrainer

JCM 621 Sur-Grip Bell Joint and Fused Join Restrainer Restrainers for C-905 PVC and HDPE pipe 14" and larger shall be provided by mechanical means separate from the mechanical joint gasket sealing gland. The restrainer shall be a split, two piece configuration with a serrated inside surface and provide a wide supportive contact around the full circumference of the pipe. Restrainer body shall be manufactured from steel per ASTM A516 Grade 70, ASTM A36 or equal and be fusion epoxy coated on all surfaces except the serrations. Width and serrations per inch shall be as listed. The restrainer fasteners shall be per ASTM A242, A193 B5, B7. Restrainers shall have a pressure rating equal to that of PVC and HDPE pipe on which it is used and be capable of withstanding a minimum test pressure of 2 times the pressure rating. Restrainers shall be JCM Industries Sur-Grip or equal.

Nominal Size 14", 16", 18”

Restraint Width

Serrations per inch

5 7

6 6 6

20", 24”



This typical specification, provided by JCM Industries, is a proposed guideline for use by specifying agencies to ensure significant design and material features of this product are included within the agencies’ individual specifications.


Effective 04.25.14

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