Axial Flow Check Valve

Size Range

DN50 to DN600

Pressure Class

PN10 / Class 150 to PN420 / Class 420

Standards

API 6D, API 602, ASME B16.34, GB/T 12235, GB/T 21387, ASME B16.10, GB/T 12221, EN 558, API 598, GB/T 13927, JB/T 9092, GOST 9544, GB/T 12224, ASME B16.5, ASME B16.47, GB/T 9113, JB/T 79, HG/T 20592, EN 1092, GOST 33259, ASME B16.25, API 607 (Fire Safe)

End connection

ASME B16.5 flange · ASME B16.47 flange · GB/T 9113 flange · JB/T 79 flange · HG/T 20592 flange · EN 1092 flange · GOST 33259 flange · Butt weld ASME B16.25 · Butt weld GB/T 12224

Available sizes

Standard DN sizes covered by this product. Confirmed at quote.

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

Size

DN50 (2")DN65 (2 1/2")DN80 (3")DN100 (4")DN125 (5")DN150 (6")DN200 (8")DN250 (10")DN300 (12")DN350 (14")DN400 (16")DN450 (18")DN500 (20")DN600 (24")

Pressure

PN10PN16PN25PN40PN64PN100PN160PN250PN320PN400Class 150Class 300

End connection

ASME B16.5 flangeASME B16.47 flangeGB/T 9113 flangeJB/T 79 flangeHG/T 20592 flangeEN 1092 flangeGOST 33259 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

sealing surface

Hard Alloy

Features

• One-piece wing-type streamlined flow channel
• Low fluid resistance due to axial flow design
• Hard alloy sealing surface
• Flexible disc design
• Quick closing with small closing impact force
• Spool aligned with flow direction
• Actuated by spring or fluid pressure

Description

A check valve with an axial flow design in which the spool is aligned with the flow direction, reducing resistance loss. The spool is actuated by spring or fluid pressure for rapid opening and closing. Forward flow opens the spool; reverse flow causes quick closure to prevent backflow.

Available pressure classes

Pressure classes this product is rated to.