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TOPIC: TEST VENT FOR SMALL BORE PIPING

7 years 2 weeks ago #8242

  • mcfly123
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Do we need test vents for 2" and below piping?

Re: TEST VENT FOR SMALL BORE PIPING 7 years 2 weeks ago #6669

  • Flowr8
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I'm not sure what you mean by a test vent. If you're referring to hydro-test vents and drains, then the answer is yes.

Re: TEST VENT FOR SMALL BORE PIPING 7 years 2 weeks ago #6670

  • Jop
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I agree 100% with flowr8.
Do it once and Do it Right

Re: TEST VENT FOR SMALL BORE PIPING 6 years 10 months ago #6725

  • Er.piping
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I would like to add one thing, If the lines are carrying service fluids (ie.fluids used for pressure test) then high point vents are not provided.

Re: TEST VENT FOR SMALL BORE PIPING 6 years 10 months ago #6728

  • Jop
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Er-piping,
I think you might be referring to piping services ASME B31.3 calls Category "D" Service. However there is a condition on this. The Client must agree.
With Client Approval these would include:
- Plant Air
- Instrument Air
- Plant Water
- Domestic Drinking Water
- Nitrogen

For these, you perform a "Commodity Test". You just fill the system with the intended service and inspect for leaks
Do it once and Do it Right

Re: TEST VENT FOR SMALL BORE PIPING 6 years 10 months ago #6726

  • Er.piping
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Yes Jop i was referring to Category D fluids, thanks for elaboration.
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