All-rubber valves with dome or spherical shapes that open more easily in one direction than the other. They can be engineered to have two specific opening pressures based on their shape and thickness, and are generally found in a closed position.
VA3768View Data Sheet
|Outer Diameter (mm): 4.06||Outer Diameter (Inches): 0.160||Comments: Has two flutes for preloading||View Products|
The VA3768 design can be used for introducer applicators up to 9 French, f3mm. It can use two valves back-to-back (with a disc in between). Or, an additional disc can be added to provide sealing with guide wire or catheter in place.
VA4914View Data Sheet
|Outer Diameter (mm): 5.33||Outer Diameter (Inches): 0.210||Comments: Very Thin Membrane||View Product|
The VA4914 is designed as a general purpose vent valve or for use with catheters in the range from 2.5 to 3.3 mm in diameter.
VA5299View Data Sheet
|Outer Diameter (mm): 6.86||Outer Diameter (Inches): 0.270||Comments: Low Profile Design||View Product|
The VA5299 is designed for use with catheters 4.8 mm in diameter or as a vent valve.