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  1. Valveusa

    100% radiography requirement on 150# Cast steel butterfly valve

    Is there are any new guide line about API Q1 and ISO 9001:2008 Quality Management Systems .
  2. Valveusa

    Self-Contained Hydraulic Emergency Shutdown Systems actuator Spring

    We are working on HIPPS 3" CL 2500 Self-Contained Hydraulic Emergency Shutdown Systems gate valve . The ESD control panel include two HP and LP Hydraulic Pressure switch. Fail close time <3 sec and displacement 3.5" . My question is how to calculate the actuator SPRING for quick action...
  3. Valveusa

    Digital Differential Pressure Gauge pressure chart recorder API Standerd

    Is there any API stranded Digital Differential Pressure Gauge pressure chart recorder.
  4. Valveusa

    repair work on 8&quot; CL 1500 bolted bonnet Globe valve

    Hi . I am doing some repair work on 8" CL 1500 bolted bonnet Globe valve. The sealing surface HF seat ring and disk 410SS. The sealing surface( Cup type) height is about 1/2". lapped with 180 grit size .It failing pressure at 1000 psi. What option we should take: Use hemmer type...
  5. Valveusa

    Testing valves materials in the foundry/ forging process

    Hi, What type of test sample pieces of valve material we ask to the valve foundry /forging shop as valve Manufacturer?Thanks AL[ponder]
  6. Valveusa

    Gate Valve trim Material

    Hi, If anybody could clarify F-WDC , This is what I got on a 10" CL 1500 gate valves description . thanks AL[ponder]
  7. Valveusa

    Plug Valve Torque Calculation

    Need torque calculation for 20" Full bore class 600 plug valve operating pressure 600 psi . If there are any standard formula for this ?
  8. Valveusa

    347 H Valve Material ?

    What is the difference 347H - 347 Valve body material?
  9. Valveusa

    API 624 Fugitive emission testing

    Have you seen API 624 copy ? I have read the draft copy only . Where acceptance criteria are subject to agreement between the end user or when superseded by local ordinance .
  10. Valveusa

    API 624 Fugitive emission testing

    If any body knows what is max fugitive emission (PPM level ) as per API 624 AL
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