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Proper valve call out 2010-11-23
Field sketches that instead of showing the standard call out for valves (i.e. 150# etc) what I'm getting; for example, 275WP or 275WOP and 275WOG. What is up with WOP and WOG?
Pressure reduction without loss of flow 2010-11-23
A closed loop chilled water system that runs at a differential pressure of 30 psi.
High Temperature Ball Valve 2010-11-23
3 way diverter, 1/4" Max pressure 10 Bar,Temperature: 500 Degree Celcius.
Ball valve pressure rating 2010-11-23
The ball valve 1 in size SS316 as 150# rating. On the valve body 5000psi rating is embossed.Are the two pressure equivalent?
Corrosion Allowance and Elastomers 2010-11-22
Is a CS body valve with 10mm corrosion allowance readily available for all pressure classes or if they need to be specially manufacturered? Or is the 10m corrosion allowance OTT (over the top)
Steam Trap Needed for Shutting Off Steam Line 2010-11-22
A line which we want to shut off the steam to has no steam trap on it. The line runs into a sump, where it just flows out of the pipe. The valve is by the main steam header.
Relief Valve response to Pulsation from Positive Displacement Pump 2010-11-22
A relief valve set for 1250 psi on a system with a positive displacement pump (2500 rpm) sees pressure spikes of 1275 psi every 1.5 seconds. However, the RV does not lift.
Sour gas valve sources 2010-11-22
1 ¼” ball valve and possibly 2 each of a 3” ball valve or gate valve that have metal seats and meets NACE MR0175 SPECIFICATION FOR SOUR GAS SERVICE.
