2. Ultrahigh-Purity Fluoropolymer O-Ring-Free Check Valves

3. CHP Series Check Valves Small Platform
Available in ¼” and 3/8” and 6mm and 10mm
Dupont® Teflon® modified PTFE wetted parts
Meet SEMI® Standard F for UHP applications
Fine thread flare and Nippon Pillar® Super 300 end connections standard
Other end connections available
Low cracking and reseal pressure
Cracking pressure: 1.5 psi (0.10 bar)
Resealing pressure: 0.5 psi (0.04 bar)
Swagelok CHP series check valves are designed for wet-side UHP applications. They feature:
Dupont® Teflon® modified PTFE wetted parts
Meet SEMI® Standard F for UHP applications
Fine thread flare and Nippon Pillar® Super 300 end connections standard
Other end connections available
Low cracking and reseal pressure
Cracking pressure: 1 psi (0. 60 bar)
Resealing pressure: 0.5 psi (0.03 bar)

4. CHP Series Check Valves Medium Platform
Available in ½” and ¾” sizes
Teflon® wetted components
Meet SEMI® Standard F for UHP applications
Fine thread flare end connections
Other end connections available
Low cracking and reseal pressure
Cracking pressure: 0.9 psi (0.07 bar)
Resealing pressure: 0.5 psi (0.04 bar)
Swagelok CHP series check valves are designed for wet-side UHP applications. They feature:
Dupont® Teflon® modified PTFE wetted parts
Meet SEMI® Standard F for UHP applications
Fine thread flare and Nippon Pillar® Super 300 end connections standard
Other end connections available
Low cracking and reseal pressure
Cracking pressure: 1 psi (0. 60 bar)
Resealing pressure: 0.5 psi (0.03 bar)

5. Features