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: Umbrella
Material: FKM/ FluoroSilicone
Hardness: 55±5 shoreA
Inner diameter: 4.42mm
Outer diameter: 11.74mm
Opening pressure: 2-4Kpa
Color: Red/Black/White/Clear
Sample: 2 pieces free samples