Top Valve ISO1413/Nance

What pressure, flow and temperature is it rated for?

This valve is ANSI 600 rated with maximum operating pressure of 300°F / MOP B 16.4 (the listing shows both "1310 MOP B 16.4" and "MOP B 16.4" – confirm the correct pressure rating with the seller). Temperature range is -20°F to 1480°F. Flow capacity is not specified in the listing; globe valves in this 3"x3" size typically have Cv values between 50-80 depending on trim design, but request the specific Cv curve from the seller for accurate sizing.

What materials are the wetted parts?

Body is WCB (carbon steel), trim is 316 stainless steel, and seat material is Devlon. The listing does not specify gasket, packing, or other seal materials – request a full bill of materials from the seller if these details matter for your service compatibility.

What should I inspect before putting it into service?

Inspect the Devlon seat for cuts, compression set, or chemical degradation, and verify the 316SS trim shows no galling, erosion, or corrosion pitting. Check body and bonnet for cracks using liquid penetrant testing, confirm stem packing integrity with a low-pressure seat test, and verify the disk-to-seat alignment by stroking the valve through its full travel. Globe valves are prone to cavitation damage downstream of the seat; inspect the outlet end of the body for erosion if previous service involved high pressure drops or flashing conditions.