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Diaphragm Check Valves and Floating Disc

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.

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Cracking Pressure

≤ 0.8" H2O (2)

≤ 10" H20 (1)

≤ 8 mbar (15)

Floating N/A (1)

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

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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Polysulfone Floating Disc Check Valves

Polysulfone Floating Disc Check Valves

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Multiple options available

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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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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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 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, 1/8" Barb to Female Luer Lock, ABS Body with Polystyrene & Silicone Disc

ISO 80369-7 Check Valve, 1/8" Barb to Female Luer Lock, ABS Body with Polystyrene & Silicone Disc

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ABS Bodied Filtered Check Valve, Silicone Disc, 2.4mm (3/32") ID Tube to Male Luer Lock, Cracking Pressure ≤ 8 mbar

ABS Bodied Filtered Check Valve, Silicone Disc, 2.4mm (3/32") ID Tube to Male Luer Lock, Cracking Pressure ≤ 8 mbar

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