Kimray 325 FMT PB PO-D

What pressure, flow and temperature is it rated for?

This valve has a maximum working pressure of 250 psig and a flow coefficient (Cv) range of 11.1 to 43.8, with a flow characteristic Cf of 0.79. The listing does not specify temperature ratings; ask the seller for the minimum and maximum temperature limits for the body and trim materials.

What gases is it compatible with, and has it been oxygen cleaned?

The listing indicates this valve is suitable for both liquid and gas process fluids but does not specify which gases or provide previous service history. The listing does not state whether oxygen cleaning has been performed. Control valves intended for oxygen service require special cleaning and material specifications; confirm with the seller if oxygen compatibility is needed for your application.

What materials are the wetted parts?

The body is constructed from cast ductile iron with a 2.25" linear trim, but the listing does not specify the trim material, seat material, or seal materials. NACE MR0175 compliance is listed as an option available, which typically involves upgraded metallurgy for sour service. Ask the seller for a complete bill of materials including trim, seat, and elastomer specifications.

What should I inspect before putting it into service?

Verify the Class VI shutoff rating by performing a seat leakage test per API 598 or FCI 70-2 standards, as trim wear is common on used control valves. Inspect the actuator diaphragm and spring for fatigue or damage, confirm smooth stem travel across the full stroke, and verify the crack open and full open pressures match the listed 10 psig and 35 psig specifications. Check all flange faces and gasket surfaces for damage, and confirm the body has no cracks or erosion, particularly downstream of the seat where cavitation or flashing may have occurred in the previous application.