BenThayer
Chemical
- Jan 9, 2004
- 218
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We are having trouble with a pilot operated valve in steam service. It appears that we do not have adequate pressure on the system to pressure up the dome section of the valve.
Has anyone had trouble with turn-down of operating pressure in pilot operated valves? Set-point is for 100 psig but it is sometimes seeing vacuum service when heating the tank contents to 175-200°F.
We are having trouble with a pilot operated valve in steam service. It appears that we do not have adequate pressure on the system to pressure up the dome section of the valve.
Has anyone had trouble with turn-down of operating pressure in pilot operated valves? Set-point is for 100 psig but it is sometimes seeing vacuum service when heating the tank contents to 175-200°F.