Valve Types for Specific Services

In case of specific services, choose of valve may be simplified by following established practice

Services Main Secondary
Gases Butterfly valves
Check valves
Diaphragm valves
Lubricated plug valves
Screw down stop valves
Pressure control valves
Pressure relief valves
Pressure reducing valves
Safety valves
Relief valves
Liquids - clear up to sludges and sewage Butterfly valves
Screw down stop valves
Gate valves
Lubricated plug valves
Diaphragm valves
Pinch valves

Slurries and liquids with solids Butterfly valves
Pinch valves
Gate valves
Screw down stop valves
Lubricated plug valves

Steam Butterfly valves
Gate valves
Screw down stop valves
Turbine valves
Check valves
Pressure control valves
Pre superheated valves
Safety and relief valves

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