slurry PSV
slurry PSV
(OP)
Hi,
what kind of PSV is applicable to slurry discharge?
-solid suspension in liquid water with KOH
-total Solid 35000 mg/L
-Density: 1400 kg/m3
what kind of PSV is applicable to slurry discharge?
-solid suspension in liquid water with KOH
-total Solid 35000 mg/L
-Density: 1400 kg/m3





RE: slurry PSV
Perhaps a rupture disc is more appropriate, combined with some other controls to eliminate any operational overpressure cases.
RE: slurry PSV
If your slurry is hazardious you will be guided down the route of a bursting disc and relief valve. (For KOH that would probably be approprate).
alternatively if this is on a positive displacement pump you may choose for a high integrity (or hard wired) local trip on the pump discharge rather than a relief valve - i've seen this done many times.
RE: slurry PSV
My first question can the pump discharge be blocked? If instrumentation is workable a quick risk accessment can determine if SIL is required.