Description
These 687 series check valves can be used for a wide range of air and fluid applications.
- Polypropylene
- FKM seals
- Hastelloy spring
- High flow rate
- Seat area open diameter: 0.438″
- Positive seal at very low back pressure or slight vacuum
- Cracking pressure: 1/3 psi
- Check mechanism: Disc poppet
- Maximum pressure: 125 psi
- Maximum temperature: 140°F
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