Single Disc Check Valve

Specifications

Confirmed at quote

Size Range: NPS2 to NPS12
Pressure Class: Class 150 / PN20 to Class 2500 / PN420
Standards: API 594, GB/T 12235, API 6D, GB/T 12221, GB/T 13927, ASME B16.34 (Pressure Temperature Rating), GB/T 12224 (Pressure Temperature Rating / Butt Weld), ASME B16.5 (Flange Standard), GB/T 9113 (Flange Standard), ASME B16.25 (Butt Weld Standard), API 607 (Fire Safe)
End connection: ASME B16.5 flange · GB/T 9113 flange · Butt weld ASME B16.25 · Butt weld GB/T 12224

Configure your variant(manually adjust box on the right if you require a different spec)

Pressure
End connection

Materials

All available material options per part. Click a pill to set it in the configurator.

body
disc surface

Features

Low-inertia swing-type disc design with fast response
Adjustable closing time
Hard alloy cladding on disc-to-seat contact surfaces for wear resistance
Spring-assisted closing option to prevent backflow
Compact overall structure
No restriction on installation orientation
Maximum working pressure Class 2500
Fluid dynamics design to reduce water hammer impact
Compliant with API 6D

Notes

etc. noted alongside material and operator options, implying additional variants available on request

Description

A swing-type single disc check valve with a body of high-strength alloy steel or stainless steel, designed for automatic unidirectional flow control. The valve disc seating surface is clad with hard alloy for wear resistance under high-pressure and high-speed conditions. An optimised fluid dynamics design reduces water hammer impact, and a spring-assisted closing option is available.