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High performance type for butterfly valve 2010-11-02
What is the high performance type for butterfly valve?A high performance butterfly valve is normally a triple or occasionally double eccentric butterfly valve .
Cast Iron Body 2010-11-02
We have a butterfly valve with 6" 2500# Flanges. A working pressure of 3080 psig, a differential pres of 700 psi.
Valve stem rating 2010-11-02
We have a butterfly valve with 6" 2500# Flanges. A working pressure of 3080 psig, a differential pres of 700 psi
Tight Shut-Off (TSO) as per API508 2010-11-01
API 508 defines leakage rate for "TSO".My question:1. What is the leakage rate defined for "TSO" class as per API508 / ISO 5208, Any one has this standard please let me know.
Use of Viton with hot water or steam service 2010-11-01
Viton is often used as elastomeric seat in butterfly valves. Viton is know to be restistant to 'difficult' chemical media.Viton is often used as elastomeric seat in butterfly valves.
Amine Regenerator vertical thermosyphon reboiler not flowing properly 2010-11-01
Have a thermosyphon reboiler on our amine regenerator that has not been flowing properly since turn around.
Length of Studs 2010-11-01
What ASME Standard(s) call out the length of a stud? I recollect that somewhere a non-pressure retaining stud is measured end-to-end
Butterfly valve disc material for slurry service 2010-11-01
We are using butterfly valves to throttle limestone and calcium sulphate slurry flow in 4" and 6" pipes, not the ideal application for this type of valves I realize.
