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

Specifications

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

Specifications

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

Specifications

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

Specifications

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

Specifications

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

Specifications

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

Specifications

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.

Specifications

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

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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

Specifications

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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