Non Return Valves
Our non-return valves protect tubing and vacuum systems from backflow when pressure falls in the system. Sealing system eliminates backflow, helping to prevent upstream contamination or damage. These valves are compatible with a wide range of systems, all with different specific levels when dealing with the three main pressure values: cracking pressure, maximum pressure, and back pressure created. Durable steel or plastics are used in all designs, creating a quality product that will remain independent for years with no need for replacement.
Avantor® Hichrom PEEKsil™, Back Pressure Regulator
Supplier: HICHROM
Avantor® Hichrom, Back pressure regulator, Pressure: 5,17 bar
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Non-return valves, SP Bel-Art
Supplier: Bel-Art Products, a Part of SP
PP valve, translucent with neoprene valve disk. Stops reverse flow of liquid when pressure is interrupted.
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Non return valves
Supplier: BURKLE
Translucent PP retaining valves with embossed directional arrow or printed in black. With tapered ends. Various uses.
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Back pressure regulators, Upchurch Scientific®
Supplier: UPCHURCH SCIENTIFIC
Back pressure regulator assemblies are designed to create incremental back pressures ranging from 5 to 1000 psi (0,3 to 69 bar). These biocompatible and stainless steel back pressure regulator assemblies are available complete with a replaceable, factory pre-set cartridge (except the 5 and 20 psi (0,3 to 1,4 bar versions).
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Vacuum check valve and positive connector, Nalgene®
Supplier: Thermo Fisher Scientific
These vacuum check valves with positive connector are designed to prevent back pressure with aspirator-type vacuum pumps.
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Non-return valve
Supplier: BRAND
HDPE, transparent. Prevents backflow. With FKM valve disc not suitable for pressure applications.