3/4" FNPT x 3/4" FNPT Series 687 Polypropylene Check Valve with FKM Seals, 1/3 PSI Cracking Pressure & Hastelloy Spring

Save $3.00

Sale price$21.99 Regular price$24.99


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

Item Information

Item Number: 22657
Manufacturer: SMC
Manufacturer Part #: 6870490
Country of Origin: USA

Tech Specs

Material: Polypropylene
Seal: FKM
Connection: FNPT x FNPT
Size: 3/4"
Weight: 0.11 lbs

You may also like

Recently viewed