National standard cast steel lift check valve

DN：DN15~300

Class：PN16~100

Stand：GB/T12235

High temperature and high pressure self sealing check valve

DN：DN15~300

Class：PN16~100

Stand：GB/T12235

Wafer forged steel check valve

DN：NPS2"~24"

Class：Class150

Stand：GB/T12235

Tilting disc check valve

DN：DN100~800

Class：PN10~25

Stand：GB/T12235

Axial flow check valve

DN：DN100~800

Class：PN10~25

Stand：GB/T12235

Butterfly type slow closing check valve

DN：DN100~800

Class：PN10~25

Stand：GB/T12235

Low temperature check valve

DN：NPS1/2"~12" (DN15~300)

Class：Class150~600

Stand：API 6D

Low temperature check valve

DN：NPS1/2"~12" (DN15~300)

Class：Class150~600

Stand：API 6D

Swing check valve

DN：DN50~500、NPS2"~20"

Class：PN16~250、Class150~2500

Stand：API 6D

Swing check valve

DN：DN50~500、NPS2"~20"

Class：PN16~250、Class150~2500

Stand：API 6D

Fluorine lined check valve

DN：DN15~400

Class：PN10~16

Stand：GB/T 12236

Fluorine lined check valve

DN：DN15~400

Class：PN10~16

Stand：GB/T 12236

Fluorine lined check valve

DN：DN15~400

Class：PN10~16

Stand：GB/T 12235

Fluorine lined check valve

DN：DN15~400

Class：PN10~16

Stand：GB/T 12235

Axial flow check valve

DN：NPS1/2"~48"

Class：Class150~2500

Stand：GB/12234、ASME B16.34、API600

Swing check valve

DN：NPS1/2"~48"

Class：Class150~2500

Stand：GB/12234、ASME B16.34、API600

Lift check valve

DN：NPS1/2"~48"

Class：Class150~2500

Stand：GB/12234、ASME B16.34、API600

Socket weld check valve

DN：NPS1/2"~48"

Class：Class150~2500

Stand：GB/12234、ASME B16.34、API600

Double clip lift check valve

DN：NPS1/2"~48"

Class：Class150~2500

Stand：GB/12234、ASME B16.34、API600

Double pinch swing check valve

DN：NPS1/2"~48"

Class：Class150~2500

Stand：GB/12234、ASME B16.34、API600

Wafer check valve

Stand：

Internal threaded swing check valve

Stand：

Female threaded check valve

Stand：

Three-piece female threaded check valve

Stand：

Titling disc check valve

Stand：

Hammer weighted slow-closing type hydraulic

Stand：

Fluorine lined double flap check valve

Stand：

Fluorine lining butt type check valve

Stand：

Fluorine lined visual ball check valve

Stand：

Fluorine lined ball check valve

Stand：