Swagelok^® Springless Diaphragm Valves for Modular Gas Systems

DE series springless diaphragm valves for 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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Swagelok DE Series springless diaphragm valves are engineered to ensure easy installation, reliable performance, and superior purity in modular ultrahigh-purity gas delivery systems.

Key Features:

Valve body is made from 316L VIM-VAR stainless steel, ensuring high corrosion resistance and maintaining ultrahigh-purity standards
Designed for seamless integration into with 1.125 in. C-seal or W-seal modular gas systems
Fully contained PFA seat enhances purity by preventing contamination and offers improved thermal stability in critical applications
Available in both two-port and three-port configurations to meet various system requirements
Pneumatic and manual actuation options are available, offering flexibility in operation while maintaining a compact footprint
The actuator is fixed in orientation relative to the valve body, ensuring consistent installation and minimizing the potential for alignment errors
Corner chamfers on the valve body’s outlet side provide a clear visual indication of the flow direction, aiding in installation and system setup

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

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Springless Diaphragm Valves Catalogs

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Springless Diaphragm Valves 1.125 in for Modular Gas Systems, DE Series

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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