The Ham-Let® H-800 1-piece ball valve series is designed for general service and instrumentation panels. The 1-piece ball valve design enables low and high working pressure and accommodates a wide temperature range with high life cycle.
The 1-piece ball valve body design reduces possibility of shell leakage. The valves offer tight shutoff, long-life service and low operating torque.
Testing:
- The H-800 1-piece ball valve design has been tested for Burst and Proof.
- Standard testing for each H-800 valve includes testing with nitrogen at 1000 psig.
- Each valve is tested for leakage through the shell, packing and ball seats.
- Maximum allowable leakage across the seat is 0.1 std cc/min.
Packing Adjustment:
- Due to the varied service applications of the ball valve, packing adjustment may occasionally
be necessary.
- Packing is factory adjusted to 1000 psig service. Initial packing adjustment is recommended after installation and prior to start-up.
- Please find more information on H-500 under Installation Instructions.
Ham-Let® 1-piece ball valves are designed for fully open or fully closed operation only.
After a period of non-operation, valve’s braking torque may rise.