Our diaphragm-sealed valves are available in a wide variety of sizes, materials, and configurations to fill your needs for high-purity and ultrahigh-purity applications.

Diaphragm-sealed valves:

• Have long cycle life and provide effective shutoff
• Have actuator options including manual, pneumatic, and locking
• Are offered in a wide variety of sizes, materials, and configurations

Diaphragm-Sealed Valves (DL and DS Series)

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DL series and DS series diaphragm valves offer packless, all metal containment for high-purity and ultrahigh-purity applications.

DL Series Features

• DL series diaphragm valves require just one-quarter turn of the handle to actuate the valve from fully open to closed
• Position indicator ring provides visual confirmation that the valve is fully open or closed
• Splined handle and actuator prevent handle slippage and assure positive valve actuation

DS Series Features

• DS series diaphragm valves require approximately one and one-half turns to operate from fully open to closed

Bulk Gas Diaphragm Valve (LD Series)

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With flow coefficients up to 13 and a variety of body materials and configurations, LD series bulk gas diaphragm valves can support a wide range of ultrahigh-purity shutoff, bulk-gas distribution, and isolation applications.

Features

• Shutoff, bulk-gas distribution, and isolation service
• 1/4 to 1 in. and 12 to 25 mm end connections
• No springs or threads in wetted areas enable cleaner operation
• Contoured flow passages allow high flow
• Tied diaphragm design provides positive stem retraction

Springless Diaphragm Valves for High Performance (DP Series)

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With 316L VIM-VAR construction, DP series diaphragm-sealed valves are suitable for a variety of ultrahigh-purity applications.

Features

• Suitable for ultrahigh-purity applications
• 316L VIM-VAR stainless steel body
• Low-pressure and high-pressure models
• VCR®, tube butt weld, and modular surface-mount end connections
• Manual or pneumatic actuation

High-Flow, Springless Diaphragm Valves (DF Series)

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DF series diaphragm valves are designed for a wide range of ultrahigh-purity, high-flow applications, with a flow coefficient of 0.62 and available with high-flow end connections.

Features

• 316L VAR stainless steel body
• No springs or threads in wetted areas improves cleanliness
• 316L VAR stainless steel body
• Fully swept flow path enhances purging and gas replacement
• Minimal PCTFE volume minimizes gas adsorption and desorption
• Fully contained seat insert increases cycle life

Diaphragm Valves for Atomic Layer Disposition (ALD Series)

Swagelok's ALD diaphragm valves, fulfill your applications needs with an ultrahigh cycle life and high-speed actuation. The ALD series features thermal actuators, position sensors, and solenoids for optimal performance in atomic layer deposition applications.

Features

• Ultrahigh cycle life with high-speed actuation
• Electronic actuator position-sensing option
• Suitable for ultrahigh-purity applications with 316L VIM-VAR stainless steel body
• VCR®, tube butt weld, and modular surface-mount end connections

Diaphragm Valves, Ultrahigh-Purity Fluoropolymer (DRP Series)

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Meeting SEMI Standard F57-0301 for UHP chemical distribution systems and equipment, the DRP series' ultrahigh-purity diaphragm enhanced design helps minimize entrapment areas and extend diaphragm life.

Features

• Pneumatic and quarter-turn manual 2-way and 3-way models; pneumatic and manual models with adjustable flow and bypass features
• Modified PTFE wetted parts and polypropylene actuator
• Meet SEMI Standard F57-0301 for ultrahigh-purity system components
• Fine thread flare and Nippon Pillar® Super 300 end connections standard; Flowell, space saver, and other end connections available
• Custom manifolds and subassemblies available

Thermal-Immersion Diaphragm Valves

Features

• Swagelok® thermal-immersion diaphragm valves offer high-speed actuation
• Offered in both pneumatically actuated and manual models
• Manual actuation with a lock-out handle
• Fully contained high-purity grade PFA seat
• Fully swept flow path
• Variety of 1/4 and 3/8 in. end connections

Radial Diaphragm Valves (DR Series)

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The DR series radial diaphragm valve offers a cleaner, more compact way to manage sterile flow streams for many applications: media preparation, fermentation, harvest, separation, refining, purification, CIP, and SIP systems. The single-body biopharm valve design can be manufactured in a wide range of configurations to include multiple valves and multiple ports, and point-of-use valves.

Features

• 316L stainless steel and modified PTFE wetted parts
• Variety of compact multivalve, multiport configurations
• Choice of sanitary clamp and butt weld end connections
• Choice of pneumatic or manual actuators in plastic or aluminum
• Five sizes from 1/2 to 2 in.

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

Catalog
DE series springless diaphragm valves are available with a variety of actuation options for ease of integration into your 1.125 in. C-seal or W-seal modular gas system.

Features

• 1.125 in. C-seal and W-seal designs
• Available in two- and three-port configurations
• Compact pneumatic and manual actuators
• Fixed orientation of actuator to body for consistency of installation
• Corner chamfers on outlet side of body for visual indication of flow direction

CAD Files and Sales Drawings

Choose from more than 1 million Swagelok CAD templates and sales drawings in multi-lingual formats CAD templates are available in a variety of 2D or 3D file formats. Sales drawings are available in .pdf format. Search based on product names or part numbers.

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