Page 8 - Parker - Process control product selection guide

Valves

Check Valves

C Series (Catalog 4135-CV)
• Resilient, custom molded, • Cracking Pressures: 1 ⁄3, 1, 5, 10, 25,
seat design 50, 75 and 100 psi (.023, .069, .345,
• Back stopped poppet to minimize .69, 1.72, 3.45, 5.17, 6.9 bar)
spring stress • Port connections include male
™
and female NPT, CPI , A-LOK ,
®
UltraSeal , VacuSeal , BSP,
™
™
SAE and Seal-Lok ®
CO Series (Catalog 4135-CV)
• Suitable for applications requiring • Cracking Pressures: 1 ⁄3, 1, 5, 10, 25,
high integrity leak rates and 50, 75 and 100 psi (.023, .069, .345,
re-sealing capabilities .69, 1.72, 3.45, 5.17, 6.9 bar)
• Seal integrity to 4 x 10 std. • Available with highly fluorinated
-9
atm-cc/sec fluorocarbon rubber
• Back stopped poppet to minimize • Only check valve with published
spring stress helium leak rate

CB Series (Catalog 4135-CV)
• Reduces maintenance while • Rugged ball design for demanding
improving performance requirements applications
on dual fuel turbines
• For high temperatures with highly
• Cracking Pressures: 1, 5, 10, 25, viscous medias
50, 75, 100 and 120 psi (.023, .069,
.345, .69, 1.72, 3.45, 5.17, 6.9,
8.27 bar)

MPC Series (Catalogs 4234 and 4135-CV)
™
• Variety of elastomeric poppet seals • MPI , cone & thread and female
NPT connections available
• 5 psi (.345 bar) cracking pressure
• For pressures up to 20,000 psi
(1,379 bar)

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