Description
These 685 series check valves can be used for a wide range of air and fluid applications.
- Polypropylene
- Buna-N Seals
- 302 SS Spring
- High flow rate
- Seal area open diameter: .0438″
- Positive seal at very low back pressure or slight vacuum
- Cracking Pressure: 1/3 psi
- Check mechanism: Disc poppet
- Max pressure: 125 psi
- Max temp: 140°F