7mm Anti-Backflow Check Valve M7 for Silicone Hose
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Prices updated: 13 Oct 2026
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About this product
A 7 mm one-way check valve for silicone hose, made from fluorine rubber that resists ozone, oil, acid and alkali. It prevents backflow in liquid or gas lines, with a low opening pressure of 0.002 MPa and a reverse pressure rating of 0.7 MPa. Suited to DIY fluid-control and pumping projects.
Specifications
- Hose diameter
- 7 mm
- Material
- Fluorine rubber
- Opening pressure
- 0.002 MPa (0.02 kg water pressure)
- Reverse pressure rating
- 0.7 MPa (7 kg water pressure)
- Compatible hose type
- Silicone hose
- Fluids
- Corrosive liquids or gas
Frequently asked questions
Which hose size does this valve fit?
It is a 7 mm equal-diameter valve designed for silicone hose of that size. Measure your hose's inner diameter before purchase to make sure it matches.
Does the valve only allow flow in one direction?
Yes, it is a check valve that stops backflow. Install it so the flow passes in the permitted direction; the listing does not describe any arrow marking, so verify the orientation on the valve body.
