Australian Pipeline Valve - Installation, Operation and Maintenance Manual
14
API6D THROUGH CONDUIT EXPANDING GATE VALVE - AP400-405 SERIES
7 . 0 V A LV E A S S E M B LY
The sample drawing labelled Diagram 1 is used as a reference, however, refer to actual as-built drawing
as the Bill of Material varies according to size, class and trim.
7.1 VALVE LUBRICATION
For components that need to be lubricated use grease IP Bimol Grease or similar.
7.2 GEARBOX MOUNTING TO VALVE
a- Assemble the gear support with the valve.
b- Insert the actuator/gear on the support with the valve.
c- Screw and tighten the studs/nuts actuator.
7.3 PRESSURE TEST
a- Move the gate in the half position.
b- Pressurise the valve body. The body hydrostatic test should be performed at a pressure 1.5 times the
maximum rating pressure in accordance with API6D.
c- With the gate in the fully open or closed position the maximum seat hydrostatic test pressure should be
performed at a pressure 1.1 times the maximum pressure rating in accordance with API6D. In addition a
low pressure pneumatic test of 700KPA should be performed in accordance with API6D. Seats should be
tested bi-directionally.
8 . 0 O P E R AT I O N & M A I N T E N A N C E
Nominal Pressure
(Class)
Test Pressure at Normal Temperature (PSI)
Hydrostatic Shell Test
Hydrostatic Seat Test
High/Low Pressure
Back Seat
Gas Seat Test
CL150
450
325
325/80
80
CL150
1125
825
825/80
80
CL150
2225
1650
1650/80
80
CL150
3350
2450
2450/80
80
CL150
5575
4075
4075/80
80
CL150
9275
6800
6800/80
80
The valve is only intended to block or allow flow through the pipeline. The valve
should only be used in either fully open or fully closed position. Do not use this
valve to regulate flow by partially opening or partially closing the valve. The valve
should not stay in a semi-open or semi-closed state for more than two minutes.
