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Company cases about Installation Checklist to Avoid Pitfalls for Multi-Parameter Flow Transmitters（4）

Installation Checklist to Avoid Pitfalls for Multi-Parameter Flow Transmitters（4）

2026-05-24

Pit 4: The status of the drain valve and balance valve has not been confirmed
During debugging, it is often necessary to open the drain valve, balance valve, and three valve group.
But the most common problem on site is:
After debugging, the valve status has not been restored.
Result:
Differential pressure signal is bypassed;
Abnormal display of transmitter;
Flow at full range, zeroing or frequent alarms.
Suggestion:
Before operation, it is necessary to confirm:
Positive pressure valve: open;
Negative pressure valve: open;
Balance valve: closed;
Discharge valve: closed;
The pressure pipe has no leakage.
This step is simple, but many on-site issues arise here.

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Company cases about Installation Checklist to Avoid Pitfalls for Multi-Parameter Flow Transmitters（4）

Installation Checklist to Avoid Pitfalls for Multi-Parameter Flow Transmitters（4）