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Choked Flow vs. Critical Flow 2010-11-08
The difference between choked flow and critical flow.We discuss critical pressure and critical temperature related to fluid phase limits.
Overhaul needs on API6FA Valves 2010-11-08
In discussions with suppliers of valves (16" side monted on/of ball valve, type with trunnion mounted ball valve, direct action).
Guide line for ball diameter selection in BALL VALVE 2010-11-08
Fire shutoff valve(Ball valve),Is there any guidelines available for selection of ball diameter in ball valve?
crack appear on valve body after pressure test 2010-11-05
Processed a strict pressure test on a C.S ball valve with DN300,600#, during the test there's no leakage. While 6 months later on site customer find a crack with 20mm length.
Help with check ball design 2010-11-05
Spring seated check ball used in a low volume low flow (130 cubic in./min max) hydraulic device.
ASME B16.34 section 6.4 valve joints 2010-11-05
The calculation of Ag defined in ASME B16.34 sections 6.4.1 and 6.4.2 as it pertains to ball valves. Specifically, we are discussing section 6.4.2 and the bolts between the adapters and body.
Ball valve body joints 2010-11-05
Any acceptable for bolted body joints on ball valves per ASME B16.34? I note that some other standards state that coarse threads be used.
Maximum Allowable Operating Pressure 2010-11-05
What's a Maximum Allowable Operation Pressure for ball valves since I haven't find this parameter in API 6D and ASME B16.34.
