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The 8” Groove Coupler Kit is used to join the grooved end of the Deringer or Magnum Shut Off Valve to a grooved pipe connection. Flexible couplings are intended to accommodate controlled movement at the joint.

A flexible coupling allows the expansion, contraction or deflection from center-line within limits established by the coupling interface with the pipe. Couplings are cast of Ductile Iron meeting ASTM A536 Grade 65-45-12 (tensile-yield-elongation).

The 8" Groove Coupler Kit includes:
  • 8" Groove Coupler
  • Closure Bolts
  • Sealing Gasket

Note: This kit is for the 8" Deringer or Magnum Shut Off Valves only.



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Groove Coupler Kit

  • Nominal Size: 8"
  • Pipe OD: 8.625"
  • Maximum Working Pressure: 500psi
  • Dimension Depth - Length: 9.92" x 12.44" x 2.36"
  • Flange Bolts: 2
  • Bolt/Nut Size: 5/8" x 3 1/8"
8in Backflow Preventer Groove Coupler



Low Flow Poppet Action

Product  Warranty

This printable document provides information for the Backflow Direct one year warranty for Deringer and Magnum backflow preventers.

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