PRESSURE TEST ON BOILERS

[falco]

Hey there, Just on equestion, When performing pressure test on a water tube steam boiler, is there any recomendation about the rate pressure should be increased until reached the test pressure I mean how many Psi we must increase per minute untiel we reach the pressure requeired?
best regards!

 

[metengr]

No, none that I am aware of.

 

[ApC2Kp]

falco,
Agree with metengr that there is not minimum rate required for pressure increase per minute for a boiler test. If the pressure does not seem to increase quickly, while pumping into boiler at a good flow, then there could probably be air that has not been vented from the boiler. Maximum pressure increase rates would follow from safe practices. Pressure increase by stages, 25%-50%, would allow time for catching gross leaks. Putting full BFW pressure suddenly on filled boiler might pop pressure relief valves.

 

[robsalv]

Break the pressure increase into stages say 25% 50% 75% 90% 100% - and hold for a short time at preceding stages to check for pressure drop.

Cheers
Rob