7.5 SECOND ADAPTOR ASSEMBLY
a- Assemble the second adaptor part no. 03 into the body lateral opening.
b- Screw studs part no. 19 and tighten the nuts part no. 19a (ensure they are pregreased as per 6.9).
7.6 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.
7.7 PRESSURE TEST
a- Move the ball 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 ball in the fully open or closed position the maximum seat hydrostatic test pressure should be
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
8.1 OPERATION INSTRUCTION
a- Hand wheel and gear operated ball valve have to be fully opened and closed to check the valve is
correctly operating.
b- In the case of automated valves, the instructions from the actuator’s manufacturer shall be supplied
separately. In this case, automated valves shall be operated with the required energy source (electric,
pneumatic, hydraulic) to check correct functioning.
c- Do not change any settings such as position stops or speed or torque governing devices.
d- Ball valves are provided with:
• Thrust and radial PTFE/steel bearing;
• Contact surface between ball and seats is anti-wearing and self lubricating. Hence no lubrication and
maintenance activity should be required. However, since the valves normally operate with industrial
fluids and gases which could have a range of impurities, a preventative maintenance program is
required as part of your plant management procedures.
Australian Pipeline Valve - Installation, Operation and Maintenance Manual
16
SIDE ENTRY 3P TRUNNION BALL VALVES API6D STANDARD - BVF100 SERIES
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.
