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SS-7X Stainless Steel Rigid Coupling Download PDF


The Model SS-7X Stainless Steel Rigid Coupling is a tongue and groove rigid coupling designed to provide a rigid joint for stainless steel pipe in size 10” through 24”.  The SS-7X is supplied standard in CF8 (304) and CF8M (316) with 304 and 316 bolts and nuts.  As an option this coupling can be supplied with small triangular teeth inside the key shoulder to prevent the pipe or component from rotating.

* The working pressure shown is based on roll-grooved Sch. 40S pipe.  For other pipe schedules, see the below table on page 2. 

† Allowable Axial Displacement and Angular Movement (deflection) figures are for roll grooved standard steel pipe. Values for cut grooved pipe will be double that of roll grooved. These values are maximums; for design and installation purposes these figures should be reduced by: 50% for ¾”/DN20 – 3½”/DN90; 25% for 4”/DN100 and larger to compensate for jobsite conditions. 

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