Friday, January 4, 2013

Re: [MW:16433] Hydraulic Test Pressure

Hydro static test pressure at Top = 1.3*P*Sa/S  [As per UG-99 (b) of ASME Sec. VIII, Div. I]
where, 
P = Design pressure (MAWP) at top, 
Sa = Allowable Stress at ambient Temp., 
S = Allowable Stress at design Temp.

So the Hydro static test pressure at Bottom = Test pressure at Top (1.3*P*Sa/S) + Static Head at bottom (ρgH)

where ρ = density of liquid (test medium)

Regards,
Ajay Pathak


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Thanks & Regards,

Ajay Pathak
Asst. Manager -PMG
Pressure Vessel Division

Jindal Steel & Power Limited
NH-06, G.E.Road, At/PO-Mandir Hasaud,
Raipur - 492101 (C.G.) India

T +91 771 3054683  M +91 9827478468

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On Fri, Jan 4, 2013 at 2:43 PM, Krishnnaa26 <krishna.bhpvteam@gmail.com> wrote:
If the test medium is not water (May be some oil Or Glycol mixed
water), what is the value of the Hydraulic Test Pressure is it still
1.3 / 1.5 times Design Pressure or some thing else?

Gopala Krishna

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