
Major dairy processor
Resolving unstable steam control at a dairy
- Problem
- Under full steam demand from both evaporators the plant could not hold a stable temperature, and operators corrected the control settings by hand.
- Specified
- Positioner data showed one DN40 valve driving fully open at peak load. We specified DN50 bodies at Kvs 40 to give the duty the capacity it needed.
- Outcome
- The valves looked correctly specified on paper. Resizing them ended what the dairy called steam wobble.






