2007年7月30日 · In older editions of the B31.3 Code, a diagram was included that showed (within the plant boundaries of process plants) the intended jurisdictions of various ASME B31 Pressure Piping Codes. That digram showed that B31.8 "right-of-ways" sometimes crossed through the boundaries of B31.3 plants and when that occurred ALL the piping within the B31 ...

2007年1月18日 · ASME B31.3 calculation for Hydrostatic Pressure Test can be limited follows: (c) if the test pressure as defined above would produce a nominal pressure stress or longitudinal stress in excess of the yield strength at test temperature or a pressure more than 1.5 times the component rating at test temperature, the test pressure may be reduced to

2010年11月7日 · Hi all, (a) Category D Fluid Service: a fluid service in which all the following apply: (1) the fluid handled is nonflammable, nontoxic, and not damaging to human tissues as defined in para. 300.2 (2) the design gage pressure does not exceed 1035 kPa (150 psi) (3) the design temperature is from...

2003年7月31日 · Subject: ASME B31.3-1993 Edition, Chapter VI Inspection, Examination, and Testing Date Issued: November 21, 1994 File: B31-94-o59 Question (1): In accordance with ASME B31.3-1993 Edition, Addenda a, if a weld has not penetrated to the inside comer of the root face on one side of the joint and the remainder of the

2009年10月27日 · Question (2): In accordance with ASME B31.3-.1996 Edition, para. 335. 1.1 (c), do the requirements apply to all pipe sizes and pressure rating classes? Reply (2): Yes. This will still be applicable to your situation. If your nozzle or extrusion is 400 mm long you are allowed max 2 mm of misalignment vertically and/or horizontally.

2015年7月27日 · Please clarify my understanding, that per B31.3- 2014, PWHT is required for all thicknesses per table 331.1.1, while there is exemptions per Table 331.1.3 i.e. for P1 material having thickness greater than 1" PWHT is not required if preheated to 95 C (multiple layer welds t>5mm) and PWHT is required for all thickness lower than 1" for P1 materials.

2009年5月29日 · According to B31.3 paragraph 319.3.1(a), the value of this sum (the "peak to peak stress RANGE") must be less than the value of the Code maximum allowable displacement stress RANGE s calculated in accordance with B31.3 paragraph 302.3.5(d). The equation from see B31.3 paragraph 302.3.5(d) is of the form: Sa f * ((1.25 * Sc) + (0.25 * Sh)

2024年1月17日 · Our customer has questioned this but to me we have followed the code and can refer to ASME B31.3 para 341.3.4 (f) If any of the defective items are repaired or replaced, re-examined, and a defect is again detected in the repaired or replaced item, continued progressive sampling in accordance with (a), (c), and (e) is not required based on the ...

2003年3月11日 · Greetings all I am hoping to get some opinions on a B31.3 piping compliance issue for some existing piping. I have a bunch of 2” and smaller threaded 304 stainless steel piping. The piping is a maze of short runs with a lot of fittings and valves. The piping does dual service, part of the time...

2009年12月4日 · I have not found any definition in B31.3, but in the gas code dents are defined in B31.8 Section 841.243 as follows, (c) All dents that affect the curvature of the pipe at the longitudinal weld or any circumferential weld shall