【product manual】

J21H, J21W PN25 PN40 male thread cut-off valve: manual, male thread connection form, straight-through structure, seat sealing surface material is stainless steel, working pressure 2.5 ~ 4.0 MPa, nominal size DN6 ~ DN20, body material is carbon steel (J21H), stainless steel (J21W), suitable for water, steam, oil (J21H) and weak corrosive, corrosive (J21W) medium pipeline.

J21H, J21W PN25 PN40 external thread cut-off valve, the pipeline connected with the valve body with external thread union type, also known as external thread needle valve, external thread needle valve, electrical, electrical, mechanical and electrical equipment engineering, One of the most used valves in the project. Because of its easy installation, reasonable manufacturing, economic simple, so extensive use in power engineering and other pipelines.