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  1. Pipingeng100

    flange bolt tightening torque

    what is the pipe material? Pressure on the line?
  2. Pipingeng100

    How to connect flanges drilled with EN-1092-1 & another with ASME B16.5 drilling (20")

    Thanks for your reply. Its on the blower discharge end. (BS EN 1092-1 PN10) drilling & the ordered is 20" SS flange drilled to ASME B16.5 150#. No. of holes are same. Thank you.
  3. Pipingeng100

    How to connect flanges drilled with EN-1092-1 & another with ASME B16.5 drilling (20")

    Is there any way to rectify these?
  4. Pipingeng100

    How to connect flanges drilled with EN-1092-1 & another with ASME B16.5 drilling (20")

    Dear all, Can you please clarify, how to connect the ASME flanges (ASME B16.5 150#) & EN-1092-1 PN10 ASME B16.5 : PCD- 635mm whereas in EN-1092-1 PCD- 620mm Bolt holes Dia: 26mm EN1092-1 PN10 Bolt holes Dia: 32mm ASME B16.5 Please resolve this matter.
  5. Pipingeng100

    GRE pipe

    Hi, The Pipe weight varies depend on your specification/appln provided to vendor. The thickness varies depend on your Pressure & temperature. Hence the Pipe weight changes accordingly. It might be GRE, GRP, GRV etc, only the resin typ will change for the Pipe manufacturing. Also, there is...
  6. Pipingeng100

    Hardfacing

    There are many Hard facing materials available depend on service application. Tungsten carbide is the hardest one. Stellite-6 is commonly used HF material along with SS 316 in valve trims. Also, HF would be used in High Pressure appln only.
  7. Pipingeng100

    Dual Plate Check Valve Standard. API 6D vs API 594

    API 6D generally talks about the Pipeline valves. It covers only the face to face dimension in the standard. And the Body wall thickness shall be ASME B16.34. API 594 specifically designed for Dual Plate Check Valves and it is commonly used in all kind of engineering industries. It covers the...
  8. Pipingeng100

    Zinc plate for Bolts and nuts exposed

    If it is under NACE Requirement, then I guess it is a highly corrosive environment. If it is not, why you are referring NACE MR0175. (Off-shore). It is not recommended for Nude Bolts and Nuts. It should be coated/plated by Zinc-Ni plated or according to your specs.
  9. Pipingeng100

    Double Block and Bleed

    Dear All, In Both Cases, the cost would be the same probably. But, As said by Littleinch, the selection of DBB is purely depend upon the space provision and piping spec. In other view, if we put DBB Twin type, how it will be done when it come for Maintenance or Shut down. You have to replace...
  10. Pipingeng100

    Pipe Cladding Inner and Outer Surfaces

    Dear All, I want to know about Pipe Cladding inside and outside surfaces of the Pipe. Kindly correct me if I am wrong. Inside Coating of the Pipe (Fluoro Poylmer) requirement depend on the flowing corrosive fluid. Outside Coating (Pipes are bundled with certain substances & over it by...

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