Parker’s instrumentation’s check valves are designed for uni-directional flow control of fluids and gases in industries such as chemical processing, oil and gas production and transmission. Within this range is a the F9 High Purity Check Valve, Hi Check valve and the C and CO Series check valves.
F9 High Purity Check Valve
Veriflo Division’s F9 Series Check Valve is an all welded high purity check valve, featuring a patented asymmetric spring design for a consistently quiet operation. The F9 Series Check Valve offers high Cv (up to Cv = 0.90) in a small footprint to conserve much needed panel space.
Two seal materials achieve compatibility with all semiconductor gases, reducing inventory requirements. These high purity valves are Class 100 clean room assembled and packaged, and VeriClean™ 316L Stainless Steel enhances electropolishing and corrosion resistance. An electropolished (EP) version for Ultra High Purity applications is also available.
Hi Check Valve
These high performance check valves offer two options for cold working pressure ratings of Class 2500 and Class 4500, with an opening pressure of 10 psi max. By offering a true two-piece design, body leakage paths are kept to a minimum.
With the added opportunity to select integral compression ends, it is possible to eliminate the use of taper threads and thread sealant. This avoids system contamination, reduces potential leakage paths, weight, space and installation costs.
CO Series Check Valves
Parker’s CO Series of uni-directional flow control valves are suitable for the control of fluids and gases in industries such as chemical processing, oil and gas production and transmission, pharmaceutical, pulp and paper, power and utilities. The CO Series Check Valve is particularly suitable for applications requiring high integrity leak rates and re-sealing capabilities.
C Series Check Valves
The Parker C Series is designed for uni-directional flow control of fluids and gases in industries such as chemical processing, oil and gas production and transmission, pharmaceutical, pulp and paper, power and utilities. They feature a resilient, custom moulded, blow-out resistant seat design.
A back stopped poppet minimises spring stress, while rigorous factory testing is carried out for both crack and reseat. Cracking pressures include: 1/3, 1, 5, 10, 25, 50, 75, and 100 psi. Port connections include male and female NPT, CPI™, A-LOK®, UltraSeal, VacuSeal, BSP, SAE and Seal-Lok®. Plus, they feature heat code traceability.