In-line Check Valves

Bio-Chem Valve has developed non-metallic, self-sealing in-line check valves for handling low volume, low flow transfers. The inert Bio-Chek(tm) in-line check valves are available in the UK and Europe from Omnifit. They prevent unintended liquid back-flow in high purity, low pressure fluid transfer applications and feature an even flow path that reduces passage complications. The zero-maintenance valves are available in an inlet or outlet configuration and applications include syringe pump systems, vacuum systems and other low-flow processes. Unlike a spring-actuated check valve that can impede or restrict the flow path, the Bio-Chek(tm) in-line check valves' flow paths are less tortuous and minimise shear and turbulence. The valves connect to a standard 1/4 – 28 port and fitting, and provide a flow rate equivalent to a 0.76 mm orifice, a cracking pressure less than 0.24 bar (3.5 psi), and checks against back-flow pressure to 6.89 bar (100 psi).