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Check Valves Compact Harsh Chemical Resistant Poly Plastic Series 125 PSI

FPCHK685-8M8M-E3LB

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 The 685/687 series poppet check valve has a thin elastomer disc on a poppet, which seals against the seat.

Maximum operating pressure: 125psi

Maximum operating temperature: 140°F

Thread options:

  • Male 1/2" or 3/4 NPT in & out
  • Female 1/2" or 3/4 NPT in & out

Valve materials:

  • Extreme duty - white polypropylene body
    • Viton seal and Hastelloy spring for bleach, acid, and extreme duty chemical resistance
  • Standard duty - black polypropylene body
    • EPDM seal and stainless steel spring for standard duty chemical resistance ie: for water and soap lines.

Pressure flows in the direction of the seal, lifting the poppet up first. This check has a maximum operating pressure of 125 psi, making it ideal for air and fluid applications.

It features a compact design and light cracking pressure, allowing for a high flow rate despite low back pressure or slight vacuum.

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