Selection
Date:2006-4-11 

TYPE AND SIZE – Select the best type of valve for the intended service (gate, check, etc.). Gate and globe valves are available with a selection of wedge or disc configurations for different services. Valves may be sized to match existing lines, but swing check and stop-check valves should also be sized according to flow conditions for maximum service life.
RATINGS – Valves must only be used in operating conditions within the appropriate ANSI pressure-temperature ratings for valve class rating and body/bonnet material (see Technical Data section).
TEMPERATURE LIMITATIONS – Only use valves within the temperature limitations of their construction. Temperature limitations of body/bonnet materials, trim, bolting, packing and gaskets must all be considered. Special construction for extended service temperatures are available on application.




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