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
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