Australian Pipeline Valve - Installation, Operation and Maintenance Manual
8
API6D THROUGH CONDUIT EXPANDING GATE VALVE - AP400-405 SERIES
f- APV’s preference is that through conduit gate valves be installed in the vertical direction. The horizontal
orientation is acceptable as shown below.
g- During commissioning and pipeline flushing, the valve must remain in the full-OPEN position to prevent
damage to the internal parts. Impurities and foreign debris entering the valve body may cause damage
to sealing surfaces resulting in malfunction.
Install the gate valve with the gate segments in the OPEN POSITION. The preferred
pressure side of the valve MUST BE INSTALLED TO THE UPSTREAM PIPE as shown
below.
Note
It may be necessary to adequately support valve actuation in order to protect the
valve and/or actuator from improper weight distribution and excess stress. To
ensure actuation mounting and supports are adequate during operation, please
contact APV before mounting and installation.
Thermal Relief Assembly
MUST vent to the
UPSTREAM side of the valve.
DOWNSTREAM
PREFERRED FLOW
DIRECTION UPSTREAM
CORRECT
CORRECT
INCORRECT
CORRECT
CORRECT
INCORRECT
CORRECT
CORRECT
INCORRECT
