Parker's CO Series check valves are designed for uni-directional flow control of critical fluids and gases in industries such as pharmaceutical,research and microelectronics.
Parker’s CO Series Check Valves are designed for high integrity, leak proof systems with uni-directional flow control of critical fluids and gases up to 6,000 PSI (414 BAR). These inline check valves are suitable for instrumentation applications requiring high integrity leak rates and re-sealing capabilities.
Markets:• Microelectronics• Research• Chemical Processing• PharmaceuticalFeatures/Benefits:• Seal integrity across the seat and to atmosphere is tested to 4 x 10-9 std atm-cc/sec (4 x 10-10 kPa – L/sec) for the CO4L with fluorocarbon rubber seals. All other sizes and seal materials are tested to 1 x 10-5 std tm-cc/sec (1 x 10-6 kPa – L/sec).• Special seat seal design provides a repeatable high integrity seal and accurate cracking pressures• 100% factory tested. Cracking pressures include:• 1/3, 1, 5, 10, 25, 50, 75, and 100 psi.• Valves are available with male and female NPT, CPI™, A-LOK®, UltraSeal, male and female VacuSeal, and Tube Adapter ends• Heat code traceability• Color coded identification labels indicate seal materialApplications:• Fill systems• Back Flow Preventers