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用于模块化气体系统的世伟洛克 DE 系列无弹簧隔膜阀

Swagelok® Springless Diaphragm Valves for Modular Gas Systems (DE Series)

DE series springless diaphragm valves for 1.125 in. C-seal or W-seal modular gas systems are easy to install, provide a visual indication of flow direction, and have a seat design that improves thermal stability.

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DE series springless diaphragm valves are easy to install due to the fixed orientation of the actuator to the body in both pneumatic and manual lockout actuation options.

The valve design includes a fully contained PFA seat for minimal particle generation, a weld isolation ring for enhanced diaphragm cycle life, and a fully swept flowpath in the body which minimizes entrapment areas and facilitates purging.


Working Pressure Vacuum to 125 psig (8.6 bar)
Burst Pressure >3200 psig (220 bar)
Actuation Pressure
Normally Closed 60 to 120 psig (4.1 to 8.2 bar)
Normally Open and Normally Closed with Manual Integral Lockout Override 60 to 90 psig (4.1 to 6.2 bar)
Temperature 14° to 150°F (–10° to 65°C)
Flow Coefficient 0.3
Body Materials 316L VIM-VAR stainless steel
Diaphragm Material Cobalt-based superalloy
End Connections
Type 1.125 in. modular surface mount (MSM)
Configurations 2-port and 3-port

DE Series Springless Diaphragm Valves Catalogs

Locate detailed product information, including materials of construction, pressure and temperature ratings, options, and accessories.

世伟洛克阀门流量系数 (C<sub>v</sub>) 计算器

The Right Valve Can Make All the Difference

Use our valve flow coefficient (Cv) calculator to chose a valve sized correctly for your needs.

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