Check valves
Check valves are used to ensure that liquid or gas flows in one direction only and prevent unwanted backflow in sensitive systems. In medical technology, check valves are used in infusion, drainage, irrigation and laboratory equipment, among others, where safe and controlled flow direction is essential.
Check valves and one-way valves are available in several designs with connections such as Luer cap, hose nipple and glue connection. The range includes low cracking pressure models and anti-siphon valves that reduce the risk of accidental flow in medical and industrial flow systems.
Made from USP Class VI medical grade materials, the valves offer high chemical resistance, low contamination risk and reliable performance in demanding applications.
Our Subcategories:
Acro pinch valves
Shut-off valves
Check valves
Metering valves
Electronic pressure regulator
16+
GEA aseptic globe valves
GEA control tops
GEA hygienic double seat valves / Mixproof valves
GEA hygienic globe valves
GEA hygienic butterfly valves
ITT hygienic diaphragm valves
Keofitt sampling valves
Pinch valves
LoTo for hygienic and aseptic valves
Solenoid valves
Media isolation valves
Miniature valves
Pilot valves for pneumatic applications
Proportional valves
Sensor valves
Special valves
Amount of products: 12
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Check valvesSpring-loaded ball check valves
Art.nr: N/ASpring-loaded ball check valves prevent flow in one direction and allow flow in the opposite direction. Check valves can also be called one-way valves or non-return valves. The valves are equipped with swivel couplings and a combination of ball and spring that open when the pressure difference exceeds the spring force. The pressure difference required for the valve to open is called the opening pressure. Air Logic spring-loaded ball check valves can be configured with different couplings, O-rings and opening pressures.Air Logic12 variaties -
Check valvesNormally closed check valves
Art.nr: N/ANormally closed check valves prevent flow in one direction and allow flow in the opposite direction. Check valves can also be referred to as one-way valves or non-return valves. In the normally closed version, a combination of spring and disk is used which opens when the pressure difference exceeds the spring force. The pressure difference required for the valve to open is called the opening pressure. Air Logic normally closed check valves combine the advantages of a soft silicone valve seat and a hard floating disk, providing good sealing and high pressure ratings at back pressure.Air Logic12 variaties -
Check valvesThreaded check valves with floating disc
Art.nr: N/AThreaded floating disk check valves prevent flow in one direction and allow flow in the opposite direction. Check valves can also be called one-way valves or non-return valves. In this design, a disk changes position inside the valve body depending on the direction of flow of the medium. In the forward direction, the medium can flow around the disk. In reverse flow, the disk is pressed against the valve seat and stops the flow. These check valves combine the advantages of a soft silicone valve seat and a hard floating disk, providing good sealing and high pressure ratings at back pressure.Air Logic7 variaties -
Check valvesMiniature check valves with floating disc
Art.nr: N/AMiniature check valves prevent flow in one direction and allow flow in the opposite direction. Check valves can also be called one-way valves or non-return valves. Floating disk check valves have a disk that changes position inside the valve body depending on the direction of flow of the medium. In the forward direction, the medium can flow around the disk. In reverse flow, the disk is pressed against the valve seat and stops the flow.Air Logic7 variaties -
Check valvesUmbrella check valves
Art.nr: N/AUmbrella check valves are Air Logic's robust solution for inline mounted check valves with low opening pressures. The plastic valve bodies with preloaded elastomer umbrellas are designed for custom opening pressures below 2 psi, with standard options at 0.75 psi and below. In the forward direction, pressure lifts the umbrella and automatically opens the valve to allow flow through the circuit. In reverse flow, the umbrella is pressed against the valve seat and prevents flow from passing. Air Logic's umbrella check valve is suitable for a wide range of OEM devices and applications, including medical devices, analytical instruments, life science, consumer products and small engines.Air Logic30 variaties -
Check valvesDouble check valve
Art.nr: N/ADouble check valve is a compact valve for controlled flow direction and to prevent unwanted backflow in medical tubing and Luer systems. The dual valve function provides extra safety in applications where backflow needs to be restricted. Available with hose pocket or Luer female with chimney port. A variant is also available with rotating Luer Lock outlet. Made of radiation stable polycarbonate. Suitable for medical, laboratory and fluid handling applications.Nordson Medical4 variaties -
Check valvesCheck valve, 200 series hose nipple, 80369-7 compatible Luer
Art.nr: N/ACheck Valve with 200 Series Hose Nipple and 80369-7 Compatible Luer is a compact valve for controlled flow direction and to prevent unwanted backflow between hose and Luer connection. The silicone diaphragm provides reliable operation at low opening pressure. Fits 3/32" (2.4 mm) or 1/8" (3.2 mm) inner diameter hose and has female Luer with threaded connection. Made of white SAN and transparent MABS. Suitable for medical, laboratory and fluid handling applications.Nordson Medical2 variaties -
Check valvesCheck valve, 80369-7 compatible Luer
Art.nr: N/ACheck valve with 80369-7 compatible Luer is a compact valve for controlled flow direction and to prevent unwanted backflow in Luer and hose systems. The silicone diaphragm provides reliable operation at low opening pressure. Available with male Luer Lock, female Luer Lock, 200 series hose nipple or hose connector for 3/32" (2.4 mm), 1/8" (3.2 mm) or 0.118" (3.0 mm) inner diameter hose. Made of MABS, SAN or clear polycarbonate with silicone membrane. Some variants are supplied with a protective cap in natural LDPE. Suitable for medical, laboratory and fluid handling applications.Nordson Medical8 variaties -
Check valvesCheck valve, 200 series hose nipples
Art.nr: N/AThe 200 series hose nipple check valve is a compact valve for controlled flow direction and to prevent unwanted backflow in hose systems. The silicone diaphragm provides reliable operation at low opening pressure. Fits 3/32″ (2.4 mm) or 1/8″ (3.2 mm) inner diameter hose, with straight or reducing connection combinations. Made of white and transparent MABS with silicone membrane. Suitable for medical, laboratory and fluid handling applications.Nordson Medical4 variaties -
Check valvesCheck valve, autoclavable
Art.nr: N/AAutoclavable check valve is a compact valve for controlled flow direction and to prevent unwanted backflow in hose systems. The silicone diaphragm provides reliable operation at low opening pressure. Fits hose with inner diameter 0.122″ (3.1 mm) and outer diameter 0.165″ (4.2 mm), with socket connection at both ends. Made of blue and transparent polycarbonate with silicone membrane. Suitable for medical, laboratory and fluid handling applications where autoclaving is required.Nordson Medical1 variaty -
Check valvesHigh flow check valve
Art.nr: N/AHigh flow check valve for one-way flow in high capacity hose systems. The valve has a pocket-to-pocket connection for hose with an outer diameter of 8.8 mm and is designed for low opening pressure and high flow with water. It is made of clear MABS and has specified leakage and pressure resistance. Connection: 8.8 mm OD hose pocket to 8.8 mm OD hose pocket Opening pressure: < 0,29 psig Flöde: > 1000 ml/min with water at 100 mbar Leakage resistance: < 0.5 ml/h at flow rate of 1 ml/h Pressure resistance: 14.5 psi Material: Clear MABSNordson Medical1 variaty -
Check valvesCheck valve, 80369-7 compatible Luer
Art.nr: N/ACheck valve, 80369-7 compatible Luer, designed for controlled one-way flow in medical tubing systems. The variants are available with female or male locking Luer connection and pocket for tubing in different outer diameters. The valves have defined opening pressure, high back pressure resistance and are made of transparent medical plastic materials with silicone diaphragms.Nordson Medical7 variaties
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