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closed and open center valves 2010-11-19
closed and open center valvesI have a hydraulic valve with a valve spool in it..It is open center, which means that in the neutral position, the oil will flow from the "IN" port into the valve and the
Approval Standard for Copper Butterfly Valves 2010-11-19
Looking for an approval standard for copper butterfly valves.
1000F temperature limit on flanged valves per ASME B16.34 2010-11-18
Why there is 1000 F temperature limit on ASME B16.34 for flanged end-connections, but ASME B16.5 does not have 1000F temperature limitation.
DOT Rule 54, fire Test Requirements for Mains 2010-11-18
DOT Rule 54 has been replaced by another standard, our certificate is out of date and Lloyds have stated they don't regonise it!, even though they issued our original certificate.
Characteristics for triple offset butterfly valve 2010-11-18
Is it suppose to be Equal percentage?Offset butterfly valves address butterfly valve seat and stability issues.
How to reduce the centerline butterfly valve torque 2010-11-18
The friction force at the EPDM liner/disc interface results in higher torque. How to reduce the torque?
Bi-directional high performance butterfly valve 2010-11-18
Many/Most bidirectional high-performance butterfly valves can act for dead-end service, if you mean end-of-pipe service.
Valve Trim Design / Material Selection 2010-11-17
Suggest a good source to guide in the design of a gas control valve trim (plug and seat) set? I must comply with NACE MR0175.
