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.
Request More InformationDE 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.
Specifications
| 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.
Features: 1.125 in. C-seal and W-seal designs; Available in two- and three-port configurations; Compact pneumatic and manual actuators; Pneumatic actuator indicator ball: red for normally closed, green for normally open; Fixed orientation of actuator to body for consistency of installation; Corner chamfers on outlet side of body for visual indication of flow direction
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