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Swagelok® products and services are delivered locally through a network of more than 200 authorized sales and service centers that support customers in 70 countries on six continents.
Safe Product Selection:
The complete catalog contents must be reviewed to ensure that the system designer and user make a safe product selection. When selecting products, the total system design must be considered to ensure safe, trouble-free performance. Function, material compatibility, adequate ratings, proper installation, operation, and maintenance are the responsibilities of the system designer and user.
Do not mix or interchange valve components with those of other manufacturers.
Home > Products > Valves


Diaphragm-Sealed Valves
Springless Diaphragm Valves for High Performance—DP Series
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
Working pressures up to 300 psig (20.6 bar), shutoff, bulk-gas distribution, and isolation service, cast, forged, and bar stock stainless steel body material.
Diaphragm Valves—DL and DS Series
Packless, all-metal containment; Working pressures from vacuum to 3500 psig (241 bar); Temperatures from –100 to 250°F (–73 to 121°C)
Ultrahigh-Purity Fluoropolymer Diaphragm Valves, DRP Series
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.
Radial Diaphragm Valve, DR Series
316L stainless steel and modified PTFE wetted parts, Variety of compact multivalve, multiport configurations, Choice of sanitary clamp and butt weld end connections.
High-Flow, Springless Diaphragm Valves—DF Series
316L VAR stainless steel body; Working pressures up to 300 psig (20.6 bar); 1/4, 3/8, and 1/2 in.; 10 and 12 mm end connections
Diaphragm Valves for Atomic Layer Deposition—Atomic Layer Deposition (ALD) Diaphragm Valves
Ultrahigh cycle life with high-speed actuation; Cv range from 0.27 to 0.62; Up to 392°F (200°C) capability with thermal actuators; 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

Swagelok® Valves

Instrumentation and Process Valves

Ball, Bellows-Sealed, Bleed and Purge, Check, Diaphragm-Sealed, Excess Flow, Manifold, Metering, Modulating, Needle Shutoff and Regulating, Plug, Relief, and Stream-Select Valves

  • Instrumentation and process valves and manifolds
  • Wide variety of end connections, including gaugeable Swagelok tube fittings
  • Broad working pressure and temperature ranges
  • Standard and special cleaning options available for high-purity and ultrahigh-purity service

Process and Instrumentation Ball Valves

Ball Valves

Swagelok® ball valves are available in a variety of standard materials and end connections. In addition, Swagelok offers ball valves manufactured or configured to the special needs of your applications.


Working Pressure
Flow Coefficient
Body Materials

End Connections
• Sizes

Up to 15 000 psig (1034 bar)
–65 to 850°F (–53 to 454°C)
Up to 130
Stainless steel, carbon steel,
brass, alloy 400, special alloys

1/16 to 2 in.; 3 to 25 mm



Swagelok® Bellows Valves for General and High-Purity Service

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

General Service

High-Purity Service

B series BN series
U series HB series
H and HK series
BM series metering
BY series switching

Check Valves

Check Valves

Swagelok offers a broad line of adjustable and fixed cracking pressure check valves to control back flow in general-service, high-purity, and sanitary applications.

  • Spring-and-poppet check valves—C, CA, CH, CP, and CPA series
  • Lift check valves—50 series
  • All-welded check valves—CW series
  • Ultrahigh-purity O-ring–free fluoropolymer check valves-CHP series
  • Disk, ball, and air blow check valves for sanitary applications


Diaphragm-Sealed Valves for High-Purity, Ultrahigh-Purity, and Biopharmaceutical Service

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

DL and DS series DP series DR series
LD series DF series DW series
ALD series
DRP series



Swagelok® Excess Flow Valves—XS Series

Excess Flow Valves

Swagelok excess flow valves stop uncontrolled release of system media if a downstream line ruptures. Flow through the bleed vent is less than 1 % of the flow rate in the trip range.


Working Pressure
Temperature Range
Body Material
O-Ring Material
End Connections
• Types

• Sizes

Up to 6000 psig (413 bar)
–10 to 400°F (–23 to 204°C)
316 stainless steel
Fluorocarbon FKM

Swagelok tube fitting, NPT, ISO, SAE/MS, VCR® metal gasket face seal, and VCO® O-ring face seal fittings
1/8, 1/4, 3/8, 1/2 in. and 6, 8, 10, 12 mm

Swagelok® Process and Instrument Manifolds

Process and Instrument Manifolds

Choose from a growing variety of manifold valves, monoflange assemblies, and related products for process piping and instrumentation applications.

  • Stainless steel, carbon steel, and duplex stainless steel materials
  • PTFE packing offers system versatility
  • Grafoil® packing extends temperature ratings
  • Compact assemblies—reduced size and weight
  • Minimized potential leak points
  • Easy installation and maintenance

Swagelok® Metering Valves—S, M, L, and 31 Series

Metering Valves

Swagelok offers several metering valves for low- and high-pressure service in 316 stainless steel and brass materials with flow coefficients from 0.004 to 0.16.

  • Low-pressure metering valves—S, M, and L series
  • High-pressure metering valves—31 series

Needle Valves, Shutoff and Regulating

Needle Valves, Shutoff and Regulating

Swagelok offers a broad line of needle shutoff and regulating valves to control flow in general- and severe-service applications.

  • Integral-bonnet and nonrotating-stem needle valves
  • Severe-service union-bonnet and instrumentation blowdown valves
  • Screwed-bonnet needle valves
  • General utility and forged-body needle valves
  • High-pressure needle valves
  • Gauge valves and rising plug valves
  • Compact gauge valves
  • Toggle valves
  • PFA needle valves
  • Compression valves for the sanitary industries



Swagelok® Plug Valves

Swagelok plug valves, available in metal and plastic versions, offer low-torque, quarter-turn operation in a simple, compact design that provides full flow and positive shutoff.

Relief Valves and Proportional Relief Valves

Swagelok offers proportional relief valves for general-industry applications and relief valves for use in the sanitary industries. We offer both high pressure relief valves and low pressure relief valves.


Swagelok® Stream-Select Valves

Stream-Select Valves

Swagelok offers compact, space-saving stream-select valves with modular construction that requires fewer tubing connections and features faster installation than conventional systems.

  • Stream selector system for process analyzer applications—SSV series
  • Stream-select, switching, and shutoff valve assemblies—TT2 and T2 series

Related Products

See Swagelok modular platform components information.

Valve Lockout Accessory

Valve Accessories and Spare Parts

The valve lockout accessory is available for a variety of ball, bellows, diaphragm, manifold, metering, needle, and plug valve handles. The lockout enables compliance with OSHA Lockout/Tagout, Standard 29 CFR Part 1910.147, Control of Hazardous Energy.

  • Bright safety orange color promotes high visibility. Other colors are available.
  • 10 in. (25 cm) plastic beaded chain secures lockout accessory to site when not in use.
  • Rugged polypropylene construction provides resistance to many chemicals and withstands temperatures from –20 to 300°F (–28 to 148°C).
  • Versatile design accommodates stems or handles from 3/8 to 4 1/4 in. (9.5 to 108 mm) in diameter and padlocks with up to 3/8 in. (9.5 mm) shackle diameter and 3/4 in. (19.0 mm) minimum straight shackle length.
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Swagelok® products and services are delivered locally through a network of more than 200 authorized sales and service centers that support customers in 70 countries on six continents.

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