API 650 - Air leak test on Bottom Sump, Manhole reinforcing and Nozzle reinforcing
API 650 - Air leak test on Bottom Sump, Manhole reinforcing and Nozzle reinforcing
(OP)
Hi,
I had a doubt on my QC department that created a procedure of air leak test with below requirement:
Pressure: 1 bar
Holding time: 5 min
Additional: Soap solution
Can anybody here help me to clarify this requirement, Besides that I can't find any requirement on the 1 bar pressure with holding time of 5min in API 650.
Thank
Marvin
I had a doubt on my QC department that created a procedure of air leak test with below requirement:
Pressure: 1 bar
Holding time: 5 min
Additional: Soap solution
Can anybody here help me to clarify this requirement, Besides that I can't find any requirement on the 1 bar pressure with holding time of 5min in API 650.
Thank
Marvin





RE: API 650 - Air leak test on Bottom Sump, Manhole reinforcing and Nozzle reinforcing
Cheers,
gr2vessels
RE: API 650 - Air leak test on Bottom Sump, Manhole reinforcing and Nozzle reinforcing
After fabrication is completed but before the tank is filled with test water, the reinforcing plates shall be tested by the Manufacturer by applying up to 100 kPa (15 lbf/in.2) gauge pneumatic pressure between the tank shell and the reinforcement plate on each opening using the telltale hole specified in 5.7.5.1. While each space is subjected to such pressure, a soap film, linseed oil, or another material suitable for the detection of leaks shall be applied to all attachment welding around the reinforcement, both inside and outside the tank.