Duckbill Check Valves
Precision-molded, one-piece elastomeric valves designed to provide forward flow rates at low pressures and are non-position sensitive.
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 | VA3120View Data Sheet | Outer Diameter (mm): 2.41 | Outer Diameter (Inches): 0.095 | Comments: Miniature, Compact | View Product | ||||||||||||||||||||||||||||||||||||||||||
VA3120The VA3120 design is a very compact duckbill that provides a simple check valve in a small space. Relatively large flange for easy mounting but with short length. Not recommended for high flow applications.
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 | VA3272View Data Sheet | Outer Diameter (mm): 3.02 | Outer Diameter (Inches): 0.119 | Comments: High Back Pressure, Miniature | View Products | ||||||||||||||||||||||||||||||||||||||||||
VA3272The VA3272 design is recommended when a very small check valve is needed and relatively low flow for its size. Curved lip design will withstand very high reverse pressures.
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 | VA3426View Data Sheet | Outer Diameter (mm): 4.01 | Outer Diameter (Inches): 0.158 | Comments: High Back Pressure, Compact | View Product | ||||||||||||||||||||||||||||||||||||||||||
VA3426The VA3426 design is a small and compact valve. Low leakage and high reverse pressure duckbill. Somewhat restricted flow for its size.
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 | VA3582View Data Sheet | Outer Diameter (mm): 4.06 | Outer Diameter (Inches): 0.160 | Comments: Standard Smaller Size | View Products | ||||||||||||||||||||||||||||||||||||||||||
VA3582The VA3582 design is a general purpose, small sized duckbill. Good flow and leakage. Available in a wide range of materials for use in air, fuels, motor oils, water, and medical applications.
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 | VA6898View Data Sheet | Outer Diameter (mm): 4.17 | Outer Diameter (Inches): 0.164 | Comments: Miniature,Low Leakage | View Products | ||||||||||||||||||||||||||||||||||||||||||
VA6898The VA6898 design is a compact, general purpose duckbill. Normally open valve. Valve in VMQ is also available in a plastic housing as part number VL1300-217.
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 | VA3893View Data Sheet | Outer Diameter (mm): 4.19 | Outer Diameter (Inches): 0.165 | Comments: Oval Shape | View Product | ||||||||||||||||||||||||||||||||||||||||||
VA3893The VA3893 specially designed duckbill has a preload to ensure low leakage at low reverse pressures. This preload significantly reduces forward flow as the preload must be overcome to open the valve in the forward direction. Contact Vernay for special mounting instructions.
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 | VA4838View Data Sheet | Outer Diameter (mm): 6.35 | Outer Diameter (Inches): 0.250 | Comments: Low Cracking Pressure | View Products | ||||||||||||||||||||||||||||||||||||||||||
VA4838The VA4838 design is a high flow duckbill used in medical applications. Available in a plastic housing with a variety of different fitments as the VL1300-200 series of parts.
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 | VA3562View Data Sheet | Outer Diameter (mm): 6.45 | Outer Diameter (Inches): 0.254 | Comments: Low Cracking Pressure | View Products | ||||||||||||||||||||||||||||||||||||||||||
VA3562The VA3562 design is a general purpose medical duckbill. High flow and low leakage valve designed for relatively low pressures such as IV drip assemblies.
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 | VA3640View Data Sheet | Outer Diameter (mm): 7.65 | Outer Diameter (Inches): 0.301 | Comments: Standard Moderate Flow | View Products | ||||||||||||||||||||||||||||||||||||||||||
VA3640The VA3640 design is a general-purpose normally open check valve. Very high flow (low pressure drop) for its size. Typical uses are medical equipment and fuel systems.
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 | VA3469View Data Sheet | Outer Diameter (mm): 7.75 | Outer Diameter (Inches): 0.305 | Comments: Oval Shape | View Product | ||||||||||||||||||||||||||||||||||||||||||
VA3469The VA3469 specially designed duckbill has a preload to ensure low leakage at low reverse pressures. This preload significantly reduces forward flow as the preload must be overcome to open the valve in the forward direction. Contact Vernay for special mounting instructions.
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 | VA3677View Data Sheet | Outer Diameter (mm): 8.51 | Outer Diameter (Inches): 0.335 | Comments: High Back Pressure | View Products | ||||||||||||||||||||||||||||||||||||||||||
VA3677The VA3677 design has high reverse pressure with some compromise on flow for its size. Typical uses are in automotive fuel and medical applications.
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 | VA4394View Data Sheet | Outer Diameter (mm): 9.53 | Outer Diameter (Inches): 0.375 | Comments: Cross Slit | View Product | ||||||||||||||||||||||||||||||||||||||||||
VA4394The VA4394 design is a medical check valve and can be used as a catheter introducer seal. Four flutes provide low insertion force while compromisng the reverse leakage somewhat due to the need for all four portions to come together and seal when reverse pressure is applied.
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 | VA4295View Data Sheet | Outer Diameter (mm): 10.11 | Outer Diameter (Inches): 0.398 | Comments: High Back Pressure | View Product | ||||||||||||||||||||||||||||||||||||||||||
VA4295The VA4295 design is a high reverse pressure duckbill with some compromise on flow for its size. Typical uses are in automotive fuel and medical applications.
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 | VA6908View Data Sheet | Outer Diameter (mm): 11.96 | Outer Diameter (Inches): 0.471 | Comments: Snap-In Design | View Product | ||||||||||||||||||||||||||||||||||||||||||
VA6908The VA6908 design is a snap-in, high flow (low pressure loss) check valve. The VMQ material is suitable for medical applications.
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 | VA3512View Data Sheet | Outer Diameter (mm): 16.00 | Outer Diameter (Inches): 0.630 | Comments: Standard High Flow | View Products | ||||||||||||||||||||||||||||||||||||||||||
VA3512The VA3512 design is a large, conventional duckbill. Recommended for applications where high flow, relatively low valve pressure drop, and reverse leakage at low reverse pressures are not an issue. An example application would be as the inlet and outlet for a reciprocating pump.
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