Safety Valves

KSV40 ASME Code Soft Seat Safety Valve

The Kingston Model KSV40 ASME Code Low Profile Soft Seat Safety Valve is an ASME Code Certified, precision machined valve, designed to API 527 Seat Tightness Standard. Compact in size yet providing high flow capacities, the Kingston Model KSV40 ASME Code Low Profile Safety Valve has been designed with the small air system in mind. All Brass construction and a resilient silicone disc provides a bubble-tight seal below re-seating pressure. Bodies are stamped with both the UV and NB symbols. Set Pressure Range: 20 - 300 psi (5 psi increments only).

Vent to Atmosphere


1", 1 1/4"

Pressure Range

20 – 300 PSI


Brass, Stainless Steel

Seat Type

Soft Seat


EPDM Disc, FKM (Fluroelastomer) Disc, O₂ Cleaning, Steam, Thread Sealant


Canadian Registration Number (CRN), National Board/ASME Section XIII


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