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  1. tomconway

    Valve material - A350-LF2

    OK cowboy You can read valvit and bj45 replies. you call it? Do we allow Bar stock forged material to be machined to produce a Flanged Ball valve. WHICH PART OF THE CODE ARE YOU GOING TO IGNORE
  2. tomconway

    Valve material - A350-LF2

    Thank you Valvit and bj45 for confirming that the code is not clear on this subject as we have heard both these interpretation previously. My own view is that while is may possible be in accordance with the code it is certainly not in accordance with the spirit of the code. I will continue to...
  3. tomconway

    Valve material - A350-LF2

    I agree with reverman that this maybe a loop hole and will insist on valves with forged bodies. As a ASME member working in the UK OIL and GAS offshore maintenance and modifications sector there is always pressure to accept alternatives that reduce the delivery times. I need to produce...
  4. tomconway

    Valve material - A350-LF2

    Can you use the code Temperature / pressure limits for valves manufactured from the above material if the valves are actually machined out of a solid forged bar? This case is a 4"NB 1500# flanged valve. My valve supplier state that it is acceptable?
  5. tomconway

    Insulation gasket for flanged joints

    Is there a method to define the use (or other wise) of Insulation gasket sets on flange bolts to combat corrosion, when making a flange joint with flanges manufactured from different metals. Regards
  6. tomconway

    Thermal Gradient

    How do I quantifly the allowable difference in temperature between the bottom of a 16"NB sch 10s st/stl pipe and the Top? I am using a small flow of LNG to keep the line cool but do not want to use too much product by cooling down the pipe by more than is required. I intend to use a 3D analysis...

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