FAQ

1. Where does the valve you use in?
2. What kind of medium the valve come into contact with? Water, air, gasoline, lubricator or other?
3. What is your using temperature?
4. What is the opening pressure about the valve?
5. What is the approximate size of the valve? Such as diameter, ID and OD.
6. What is your annual quantity?

Item: Rubber check valve
Type: Duckbill
Material: Silicone
Hardness: 55±5 shoreA
Inner diameter: 7.3mm
Outer diameter: 11.56mm
Opening pressure: 0-1Kpa
Color: Red/Black/White/Clear
Sample: 2 pieces free samples