Parker Check Valves are designed for uni-directional flow control of fluids and gases in industries such as chemical processing,oil and gas production,pharmaceutical,power, and utilities.
Check Valves
> C Series
• Resilient, custom molded, seat design
• Port connections include male and female
NPT, CPI™, A-LOK® , UltraSeal™,
VacuSeal™, BSP, SAE and Seal-Lok®
​
• Back stopped poppet to minimize spring
stress
• Cracking Pressures: 1⁄3, 1, 5, 10, 25, 50,
75 and 100 psi (.023, .069, .345, .69, 1.72,
3.45, 5.17, 6.9 bar)
> CO Series
• Suitable for applications requiring high
integrity leak rates and re-sealing
capabilities
• Seal integrity to 4 x 10-9 std. atm-cc/sec
• Back stopped poppet to minimize spring
stress
• Cracking Pressures: 1⁄3, 1, 5, 10, 25, 50,
75 and 100 psi (.023, .069, .345, .69, 1.72,
3.45, 5.17, 6.9 bar)
• Available with highly fluorinated
fluorocarbon rubber
• Only check valve with published helium l
eak rate
> CB Series
• Reduces maintenance while improving
performance requirements on dual fuel
turbines
• Rugged ball design for demanding
applications
• For high temperatures with highly viscous
medias
• Cracking Pressures: 1, 5, 10, 25, 50, 75,
100 and 120 psi (.023, .069, .345, .69, 1.72,
3.45, 5.17, 6.9, 8.27 bar)
> MPC Series
• Variety of elastomeric poppet seals
• 5 psi (.345 bar) cracking pressure
• MPI™, cone & thread and female NPT
connections available
• For pressures up to 20,000 psi (1,379 bar)
> MPCB Series
• Metal to metal seat for use in applications
that cannot accept fluorocarbon rubber
• 5 psi (.345 bar) cracking pressure
• MPI™, cone & thread and female NPT
connections available
• For pressures up to 20,000 psi (1379 bar)
> LC Series
• For extreme temperature applications
• The gravity assisted poppet uses reverse
flow to achieve a seal to within 99.9% of
forward flow
