Designed for higher flow demands, the 687 Series features a maximum Cv of 12.5 with a flow diameter of 0.812". Like other valves in the poppet series, it uses a thin elastomer disc and poppet to maintain a positive seal at very low back pressure or vacuum. This series has a 1/3 psi cracking pressure comes with a black glass-filled polypropylene body, FKM seals, and 302 stainless steel springs. A robust choice for fluid and air systems requiring excellent throughput and versatility.
- Polypropylene
- FKM seals
- 302 SS spring
- High flow rate
- Seat area open diameter: 0.812"; Positive seal at very low back pressure or slight vacuum
- Check mechanism: Disc poppet
- Cracking pressure: 1/3 psi
- Maximum pressure: 125 psi
- Maximum temperature: 140°F
- Dimensions: 2.75" L x 1.75" W