JH 2"–24" Safety Check Valve – Class 150 to 2500, Automatic Pressure Response

The JH Safety Check Valve is a protective valve solution engineered for installation at wellheads and critical oil and gas pipeline points. Designed to respond to sudden surges or drops in pressure, this valve automatically closes to protect downstream equipment from overpressure, backflow, or vacuum conditions. It supports bidirectional flow and is activated by a mechanical deadlock release mechanism that functions as a pressure-driven actuator. The valve’s rugged design conforms to international pressure standards, providing long-term safety and performance in high-pressure environments. Its role as a pressure-safety fail-safe makes it essential in upstream and midstream oil & gas systems and industrial flow networks requiring automated pressure-responsive shutoff.

Specifications:
– Valve Type: Safety Check Valve
– Size Range: NPS 2" to 24" (DN50 to DN600)
– Pressure Class: CL150 to CL2500 / PN16 to PN420
– Design Standards: ASME B16.34, GB/T 12224
– Flow Direction: Bidirectional
– Operating Mechanism: Mechanical deadlock release (pressure-responsive)
– Installation Location: Wellheads, oil & gas transmission pipelines
– Closure Function: Automatic shut-off on sudden pressure rise or drop
– Protection Function: Prevents overpressure damage, vacuum collapse, or reverse flow
– Applications: Oil & gas production and transportation, petrochemical safety systems, process lines requiring automatic isolation