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C306 Reducing Coupling Download PDF



The Model C306 Reducing Coupling allows direct reduction on a piping run and eliminates the need for a concentric reducer and couplings.  The epoxy coated ductile iron coupling housings help to eliminate galvanic local cell and stray current problems.  The specially designed rubber gasket prevents the smaller pipe from telescoping into the larger pipe during vertical installation.   

Applicable copper tubing:

  1. ASTM B-88 Type K, Type L, and Type M Seamless copper water tube.
  2. ASTM B306 Copper Drainage Tuber (DWV).

*Working pressure is for connection with roll-grooved Type K copper tubing.

Notes / Options: Couplings with rubber gaskets are likely to function as an insulator.  Where electrical continuity is required, the Shurjoint Model 96 Continuity Clip will restore electrical continuity to the system.  The continuity clip satisfies IEE Wiring Regulations.

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