The Severn Instrument Co. LTD

What pressure, flow and temperature is it rated for?

This valve is rated for 250 PSIG at 100°F with a maximum allowable differential pressure of 250 PSIG. The flow coefficient (Cv) is 1200, which indicates the flow capacity through the 1" valve at a given pressure drop. Note that the temperature rating is quite low for industrial service; confirm with the seller whether this represents actual service limits or a placeholder value, as most stainless control valves handle significantly higher temperatures.

What materials are the wetted parts?

The body is stainless steel and the trim is stainless steel with Kel-F (polychlorotrifluoroethylene). All wetted components in contact with process fluid would typically be these materials in this configuration, though specific seat, stem, and plug details are not provided.

What should I inspect before putting it into service?

Inspect the Kel-F trim for cracking, cold flow deformation, or wear, as PCTFE can degrade with age and thermal cycling. Check the actuator for smooth 750° travel, verify the fail-closed function operates correctly, examine all seals and packing for deterioration, and bench test for seat leakage at your operating differential pressure. Confirm the on/off signal interface matches your control system and that all internal components move freely without binding, particularly after storage.