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  • Users: JABoomer
  • Content: Threads
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  1. JABoomer

    ANSI Pipe Spec - Low Temperature Materials at Larger Diameters

    Hello, I am currently helping my company revise our ANSI pipe specs. What we are finding is that for normal-temp specs (both sweet and sour service), some companies have chosen to specify low-temp materials for larger diameters. For instance, B-spec will switch to low temp for 24 NPS, and...
  2. JABoomer

    Pressure De-Rating Dampeners

    Have a propane reinjection pump with suction stabilizer and discharge dampener. Stabilizer: design temperature 100F @ 740 psig Dampener: design temperature 100F @ 1480 psig It turns out the fluid stream could be as high as 115F. What codes are applicable to increase the design temperature by...
  3. JABoomer

    SW / Threaded Pipe

    Hi There, I am working on a separator package which has SW/Threaded pipe in some sections, as in threaded and socket welded connections on the same line. I am wondering if the threads are bored into the pipe in the fab shop or if the pipe must be bought threaded and then cut to length to fit...
  4. JABoomer

    Double Block and Bleed

    Hi Everyone, Question for you. What's more cost effective for a double block and bleed arrangement. Purchasing and installing a dedicated double block and bleed valve, or purchasing the separate components (two block valves and a drain valve) and fabricating the arrangement as part of your...
  5. JABoomer

    Socket Weld vs Threaded

    Hi, I am wondering what the pros and cons are for socket weld vs threaded connections for drain and vent branch connections (so sockolets vs threadolets) in an oil and gas application. Specifically I am working on a sweet separator package but I'm also wondering what effect sour service would...
  6. JABoomer

    3000# FS

    Have read some piping isometrics that state "3000# FS" fittings. I know it is referring to Class 3000 pressure rated fittings, but what exactly does the "FS" stand for?
  7. JABoomer

    Hydrotest Question

    Hi All, Can across a situation yesterday and I am still unclear on the details. Had a 150# piping system with a design pressure of 1770 kPA. Now that would make the minimum hydrotest pressure 2655 kPa. The Client actually had the hydrotest pressure set at 2948 kPa which I was fine with...
  8. JABoomer

    Chemical Injection Pump

    I need to source two small chemical injection pumps with very low flow rates (24 gal. / DAY). Where should I start the search - do any Vendors specialize in this area?
  9. JABoomer

    Valve Pressure Ratings

    Hello, I am wondering how the different valve pressure rating systems work and also how they relate to each other. I'm familiar with the standard ANSI pressure ratings: Class 150, 300, 600, and 900; but I believe there's also Class 125, 800, 1500, 2500. Is this correct (mostly is Class 800...

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