JCM Industrial Fitting Typical Specifications 01 12 2024

Product Specification

JCM 471 Fabricated Plain Outlet Tapping Sleeve – Carbon Steel Tapping Sleeves shall be the high strength type having a wide body, made of a minimum material strength of ASTM A516 Grade 70, ASTM A36 or equal. , which conforms to and reinforces the pipe. The sleeve shall have as a minimum 7/8" wide gasket of Nitrile Butadiene Rubber (NBR, Buna-N) per ASTM D2000 with hydromechancial activated lip, captured in a recessed groove around the outlet; 3/4" corrosion resistant alloy bolts (ASTM A242, A193 B5, B7) and nuts (per A563) or equal. Tapping Sleeve shall be furnished with corrosion resistant shop coat paint primer. For outlet sizes 14" and larger, the gasket groove must be consistently positioned about throat of tapping waterway. Inside diameter of the gasket groove must be set back a minimum of 1" from the waterway to allow dispersal of forces generated by gasket compression. Gasket grooves machined in a circle and formed to an elliptical shape will not be an accepted equal.

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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