I have a submersible firewater pump (offshore) with a rated capacity of 1050 m3/hr@12barg. There is a pressure relief valve (PRV) located at the discharge header just before the check valve and the valve is sized based on NFPA 20.
As per my transient study, during pump start-up (pump is...
Hi guys,
currently im in the middle of selecting ARV for firewater system. I believe at high points a combination air valve shall be used.
can someone explain to me on how this combination air valve works? im confuse with the small orifice. is this small orifice will be used to discharge...
Hi all,
Im still new in designing firewater system on offshore platform.
regarding the ARV, may i know what is the typical type of air release valve for the submersible pump?
ive read some technical data from some manufacturers. there is an ARV with small orifice and some with large orifice...
Hi all,
Im doing the static hydraulic calculation for sprinkler firewater system on offshore platform.
I need to kill the flow/pressure that going into the sprinkler system (downstream of deluge valve) after deluge valve is opened. However the valve cannot kill the pressure/flow as required...
Hi all,
Currently for my transient surge analysis, my basis for the maximum allowable pressure during surge is 150% of the design pressure of the pipe. (im using Cu-Ni where design pressure is 18 bar). so my maximum limit for the surge pressure is 1.5 x 18 = 27 bar. This 150% value is actually...
Hi all,
Im currently doing a transient analysis pressure surge for firewater system. I have problem in sizing the right Air Release Valve at the highest point of the system.
Comparing 2 cases,
Case 1
when the deluge valve for the largest fire zone is opened, there are large amount of water...
