Single Disc Check Valve

Datasheet

Specifications are indicative. Final specification is confirmed at quotation.

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

Class 150Class 300Class 600Class 900Class 1500Class 2500PN25PN40PN64PN100PN160PN250PN320PN400

End connection

ASME B16.5 flangeGB/T 9113 flangeButt weld ASME B16.25Butt weld GB/T 12224

Materials

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

body

Carbon steelStainless steelAlloy steel

disc surface

Hard alloy cladding

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.

Available pressure classes

Pressure classes this product is rated to.