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Diaphragm Check Valves and Floating Disc

These types check valves are almost always normally closed. Diaphragm Check Valve types rely upon a formed elastomer shape sealing against a surface in the flow path with enough stiction to overcome any backflow pressure that may exist in the system. The membrane shifts within the housing as the forward pressure increases until it is greater than the backflow pressure. When this differential occurs the diaphragm either compresses or bends to allow the valve to open and the media to flow around the diaphragm and out through the outlet.

Self Sealing Check Valves - Available in Various Materials and Sizes
Self Sealing Check Valves - Available in Various Materials and Sizes
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Multiple options available
Diaphragm Check Valves, Natural Polypropylene/Viton, Various Sizes Available
Diaphragm Check Valves, Natural Polypropylene/Viton, Various Sizes Available
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Multiple options available
1/8-27 NPT Male Thread x Barb Diaphragm Check Valves, Natural Polypropylene/Viton, Various Sizes Available
1/8-27 NPT Male Thread x Barb Diaphragm Check Valves, Natural Polypropylene/Viton, Various Sizes Available
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Multiple options available
Female/Male Diaphragm Check Valves, Natural Polycarbonate/Silicone, Various Connections Available
Female/Male Diaphragm Check Valves, Natural Polycarbonate/Silicone, Various Connections Available
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Multiple options available
Luer Lock/Bond-In Check Valves - Transparent/MABS Body with Silicone Disc
Luer Lock/Bond-In Check Valves - Transparent/MABS Body with Silicone Disc
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Multiple options available
High Flow Acrylic Check Valves-Silicone Diaphragm
High Flow Acrylic Check Valves-Silicone Diaphragm
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Multiple options available
Polysulfone Floating Disc Check Valves
Polysulfone Floating Disc Check Valves
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Multiple options available
Polypropylene Check Valve, 1/16" Straight Ports, Cracking Pressure < 0.8" H2O (Red Symbol)
Polypropylene Check Valve, 1/16" Straight Ports, Cracking Pressure < 0.8" H2O (Red Symbol)
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Clear Polypropylene Catheter Bodied Check Valve, Luer Syringe Port to 8.6mm (0.339") OD Barbed Stem for 6.4mm (1/4") ID Tube
Clear Polypropylene Catheter Bodied Check Valve, Luer Syringe Port to 8.6mm (0.339") OD Barbed Stem for 6.4mm (1/4") ID Tube
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Animal Free Polypropylene Bodied Check Valve, Silicone Seal, Various Sizes Available
Animal Free Polypropylene Bodied Check Valve, Silicone Seal, Various Sizes Available
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Multiple options available
Kynar Bodied Diaphragm Check Valve, Various Sizes Available
Kynar Bodied Diaphragm Check Valve, Various Sizes Available
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Multiple options available
Nylon Check Valve, Fluorosilicone Seal, 3/8" (9.5mm) ID Tube, Cracking Pressure <0.1 psi
Nylon Check Valve, Fluorosilicone Seal, 3/8" (9.5mm) ID Tube, Cracking Pressure <0.1 psi
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Nylon Body, Fluorosilicone Diaphragm, 1/4" (6.4mm) Barbed Check Valve, 0.020, Cracking Pressure <0.1 psi
Nylon Body, Fluorosilicone Diaphragm, 1/4" (6.4mm) Barbed Check Valve, 0.020, Cracking Pressure <0.1 psi
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Polycarbonate Bodied Disc Style Check Valve, Silicone Seal Disc, 3.3mm (0.130") OD Stem
Polycarbonate Bodied Disc Style Check Valve, Silicone Seal Disc, 3.3mm (0.130") OD Stem
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Polypropylene Bodied Check Valve, Viton Diaphragm, 3.2mm (1/8") ID Tube, Cracking Pressure 0.5 psi
Polypropylene Bodied Check Valve, Viton Diaphragm, 3.2mm (1/8") ID Tube, Cracking Pressure 0.5 psi
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Nylon Bodied Check Valve, EPDM Diaphragm, 6.4mm (1/4") ID Tube, Cracking Pressure 0.5 psi
Nylon Bodied Check Valve, EPDM Diaphragm, 6.4mm (1/4") ID Tube, Cracking Pressure 0.5 psi
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Polystyrene Bodied Check Valve, Silicone Disc, 1/8" (3.2mm) ID Tube (x2), ABS Housing, Cracking Pressure ≤ 8 mbar
Polystyrene Bodied Check Valve, Silicone Disc, 1/8" (3.2mm) ID Tube (x2), ABS Housing, Cracking Pressure ≤ 8 mbar
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Polystyrene Bodied Check Valve, Silicone Disc, 3/32" (2.4mm) ID Tube (x2), ABS Housing, Cracking Pressure ≤ 8 mbar
Polystyrene Bodied Check Valve, Silicone Disc, 3/32" (2.4mm) ID Tube (x2), ABS Housing, Cracking Pressure ≤ 8 mbar
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ISO 80369-7 Check Valve, 3/32" Barb to Female Luer Lock, ABS Body with Polystyrene & Silicone Disc
ISO 80369-7 Check Valve, 3/32" Barb to Female Luer Lock, ABS Body with Polystyrene & Silicone Disc
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ISO 80369-7 Check Valve, 1/16" Barb to Female Luer Lock, ABS Body with Polystyrene & Silicone Disc
ISO 80369-7 Check Valve, 1/16" Barb to Female Luer Lock, ABS Body with Polystyrene & Silicone Disc
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