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Level control valve
Choke type
DCV-C/E100
Choke size & rating
1″ ASME Class 1.500
Actuation
Pneumatic Modulating
Existing problem
A: Short meantime between failure due to erosion
B: Leakage over stem
C: Low seat tightness
Causes of problem
A: Contaminants in fluid
B: Low quality stem sealing
C: Leakage over seat due to “wrong” design & material choice
Solutions
A: Dux seats are given the design and material choice less sensible for erosion
B: Triple seal bonnet design
C: Seat tightness equal to Class VI of IEC 60534-4
Results
Most of the existing valves are replaced by Dux due to client contentment
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