4
MDX PRESSURE TESTING
HYDROSTATIC FITTING:
The hydrostatic port inside
the MDX Sump is equivalent to a 2" Threaded Female
Adapter and a 2" Slip Fitting Outside the MDX Sump. For
non-hydrostatic installations, install the 2" plug provided.
This port is for the purpose of a hydrostat only. If a
hydrostat is not used, plug this port. Do not install any
suction equipment (pump) to this port!
HYDROSTAT PLUMBING WARNING
Pressure Test-READ BEFORE INSTALLATION:
New Style Test Plug
The new style 2 1/2” pressure test plugs (005-
252-1611-00) use an o-ring to make the seal.
Wrap once withTeflon tape to prevent plastic
threads from binding. Insert plug into threaded
socket.
Set plug wrench on lug and tighten by hand until
snug. Apply handle to wrench and turn. Over
tightening may cause parts to break.
N
NO
OT
TE
E::
If have a sump withiut the o-ring groove
around the socket, proceed with one of the
alternate methods below to make the seal.
Old Style Test Plug
1.
Use four wraps of Teflon tape. Insert plug into
threaded socket. Set plug wrench on lug and
tighten by hand until snug. Apply handle to wrench
and turn 1.5 to 2 turns. Do not under or over
tighten plug.
OR USE ALTERNATE METHOD
If using silicone sealant, install plug a day before
using. Remove Teflon tape. Apply silicone liberally to
threads of plug. Insert plug into threaded socket.
Tighten by hand until snug. Do not over tighten
plug. Allow silicone to set for 24 hours before
putting under pressure.
2.
Install a pressure stack to both lines at a location
away from the MDX Debris Removal System Sump.
3.
Pressure should remain on the system through
construction until interior cleanup.
With Pressure Plugs
2” HYDROSTATIC PLUG
2 1/2” PLUGS (QUANTITY=2)
Notice:
Release pressure on the system before removing plugs.
