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  1. Basic Dimension of National Standard (NPT) Pipe Threads : ASME B1.20.1

    Pipe Threads ___ ASME B1.20.1 (NPT/API) NPS Number of Threads Perinch Pitch of Thread Depth of Thread Truncation, max Pitch diameter at plane of hand-tight engagement Length from end of pipe …

  2. Pipe Fittings - Unified Alloys

    The weld out-let Thread Outlet - The outlet end is threaded to match the normal tapered pipe threads of the pipe or equipment being attached. The threaded outlet sizes are normally limited to small …

  3. Pipe Fitting Standards Clarified: Class 150 vs 150 Pound Fittings

    In North America, most fittings follow the National Pipe Thread (NPT) taper standard with sizes ranging from 1/8-inch to 4-inches NPT. Pressure classes measure the maximum pressure a fitting should …

  4. Pipe Ends: Explained - Unified Alloys

    Pipe Ends: Explained Ensuring your piping and the connections in your processing systems are compatible for safe, effective, long-lasting performance.

  5. Stainless Steel Pipe Chart - Unified Alloys

    Seamless and Welded Austenitic Stainless Steel Pipe Chart: ASTM A312 / ASME SA312 (Dimension, Weight & Burst Data) PIPE SIZE OD IN INCHES PIPE SCHEDULES 5S 5 10S 10 20 30 40S & STD...

  6. Flanges - Unified Alloys

    Pipe Flanges and Flange Fittings in sizes over 24" are to be referenced under ASME/ANSI B16.47. Flange Types Slip-on Flanges: The slip-on flange is the most common flange in which Unified Alloys …

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  8. Branch Connections: A Guide to Choosing and Using Olet Style ...

    Combining a self-reinforcing design with a range of different formats and sizes, olet style branch connections are an ideal alternative to reinforcement pads and standard pipe tees. Different designs …

  9. Flange Basics: Functions, Designs, and Other Considerations

    Threaded Flanges Also known as a screwed flange, this style has a thread inside the flange bore which fits with the matching male thread on the pipe or fitting. The threaded connection means you can …

  10. Class 3000 / 6000 Forged Fittings - Unified Alloys

    1. Dimension B is minimum length of perfect thread. The length of useful thread (B plus threads with fully formed roots and flat crests) shall not be less than L 2 (effective length of external thread) required …