Swagelok® Ultrahigh-Purity Polymer Check Valves (CHP Series)
Swagelok CHP series UHP fluoropolymer check valves provide low cracking and reseal pressures, and their wetted components meet SEMI Standard F57-0301 for ultrahigh-purity system components.
Request More InformationOur CHP series UHP fluoropolymer O-ring-free poppet check valves are designed to maximize flow while reducing pressure drop, eliminate no-flow areas, and provide excellent leak integrity during thermal cycling.
- The O-ring-free design of the poppet ensures clean operation, and its contoured shape reduces turbulence and minimizes pressure drop
- A shell seal with a tongue-and-groove design provides excellent leak integrity during thermal cycling and high-pressure applications
- A spring composed of noncontaminating PFA material allows valve installation in any orientation. A positive stop prevents the spring from compressing to a solid height, allowing flow to sweep around spring coils to reduce entrapment.
- In medium body sizes, the retainer is designed to maximize flow and reduce pressure drop. In small body sizes, the retainer’s open-cage design ensures poppet alignment and eliminates no-flow areas.
These valves can be installed in any orientation and are available with fine thread flare and Nippon Pillar® Super 300 end connections.
Specifications
| Working Pressures | Up to 80 psig (5.5 bar) |
| Media Temperature | 50 to 185°F (10 to 85°C) |
| Body Material | |
| Small Body | Modified PTFE |
| Medium Body | PFA |
| Cracking Pressure | |
| Small Body | Less than 1.5 psig (0.11 bar) |
| Medium Body | Less than 0.9 psig (0.07 bar) |
| Reseal Pressure | Up to 0.5 psig (0.04 bar) |
| Flow Coefficient | Up to 4.1 |
| End Connections | |
| Type | Fine thread flare, Nippon Pillar® Super 300 |
| Size | Small body: 1/4 and 3/8 in.; 6 and 10 mm Medium body: 1/2 and 3/4 in. |
CHP Series Ultrahigh-Purity Polymer Check Valves Catalogs
Locate detailed product information, including materials of construction, pressure and temperature ratings, options, and accessories.
Features: Modified PTFE wetted components meet SEMI Standard F57-0301 for ultrahigh-purity system components; Fine thread flare and Nippon Pillar® Super 300 end connections; Low cracking and reseal pressure
Calculate Flow Rate for the Right Valve Selection
Use our valve flow coefficient (Cv) calculator to chose a valve sized correctly for your needs.
Use the ToolSwagelok Resources Curated for You
How to Select the Right Valves for Your Industrial Fluid System
Learn how to apply the practical STAMPED method to select the valves most suited to your industrial fluid or sampling system design applications.
Minimize the Costs of Fugitive Emissions with Low-E Valves
Fugitive emissions are a growing concern in the chemical and petroleum refining industry. Certified low-emissions (Low-E) valves can protect your facility and bottom line. Learn what they are, how they are tested, and how they can help you in this post.
How Shenyang Blower Works Group Improved Safety and Reliability
Learn how Swagelok Shanghai has helped Shenyang Blower Works Group Corporation achieve consistency, reliability, and cost savings for its customers while improving its own safety and production efficiency.
How to Improve Your Maintenance Program with Valve and Hose Tags
Read what two Swagelok specialists have to say about how a robust tagging system for hoses and valves throughout your industrial fluid systems can help you simplify maintenance and minimize system downtime.