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UserGuide-A-Deringer 2018
© 2020 Watts
Relief Valve Installation
Please follow these instructions to properly install the relief valve to the main body:
For Deringer Models 40/40X/40G/40GX/50/50X/50G/50GX
FLOW
1. Before installing the
relief valve, make sure
the O-Ring is in the
groove on the top of the
relief valve. Apply a small
coating of lubricant to
O-Ring.
2. Mount the relief valve
to the relief valve port on
the bottom side of the
main valve body.
3. Use a 9/16” wrench
to attach the two relief
valve mounting bolts.
Tighten both bolts.
4. Use an adjustable
wrench to connect the
relief valve sensing line
to the sensing line body
coupler.
For additional detailed maintenance and repair instructions,
including videos, visit BackflowDirect.com/downloads.html