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SPRING LOADED BACK PRESSURE VALVE
8
Planned maintenance
8.1
Maintenance considerations
Read and understand all instructions and operating procedures before performing
maintenance procedure, internal component inspection, or field requirement changes.
To ensure safe and accurate performance, only informed and trained personnel should
install, operate, repair and maintain this product.
Follow the recommendations below before servicing the control valve:
1. Label all parts or place parts in labeled containers during disassembly.
2. Do not use metal clamping devices in direct contact with any control valve part or
surface.
8.2
Tools required for mechanical components
Flange installation tools
Follow all best practice procedures when installing or removing flanges.
Control valve components
The control valve does not have pre-installation requirements. If installation is required for
maintenance purposes, use the following tools:
•
Socket wrench
•
Adjustable wrench
•
T-handle or extended Allen wrench
•
Arbor press (may be needed for 4- valves)
•
Retaining ring pliers
8.3
Disassemble/Assemble the control valve
Before removing the control valve from the system, the following precautions must be
taken:
The meter must be cleaned completely inside the housing components and stored/
shipped as it was received.
1. Label all parts or place parts in labeled containers during disassembly.
2. Do not use metal clamping devices in direct contact with any control valve part or
surface.
The control valve must be cleaned completely inside the housing components and stored/
shipped as it was received. Refer to Storage Preparations for cleaning instructions.
After the meter is shut down, refer to
Disassembly
for the detailed disassembly procedure.
User manual
Planned maintenance
DAN-20064957
August 2019
User manual
49
