• The 685/687 series polypropylene check valve operates in any position, horizontal or vertical.
  • Standard cracking pressure less than 1psi with a maximum operating pressure of 125psi and a maximum operating temperature of 140 °F.
  • Buna-N seals standard, ethylene propylene or fluroelastomer seals available.
  • Easily disassembled for repair or replacement of seals.
  • Stainless steel spring, with guided propylene poppet.Hastelloy springs available. Black polypropylene is standard. Please specify white polypropylene if needed.

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End Connection Size 2

Seals

Spring

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FP685-8F8F-B N/A N/A N/A N/A $19.07 Add To Cart
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FP685-8F8F-E N/A N/A N/A N/A $19.07 Add To Cart
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FP685-8F8F-F N/A N/A N/A N/A $20.07 Add To Cart
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FPCHK685-8F8F-AF,DP,1/3# N/A 1/2 Female NPT N/A 1/2 Female NPT N/A AFLAS® N/A 1/3 psi - 302 Stainless (Disc Poppet) $10.64 Add To Cart
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FPCHK685-8F8F-AF,DP,1/3#,HAST N/A 1/2 Female NPT N/A 1/2 Female NPT N/A AFLAS® N/A 1/3 psi - Hastelloy (Disc Poppet) $10.64 Add To Cart
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FPCHK685-8F8F-AF,NO SPRING N/A 1/2 Female NPT N/A 1/2 Female NPT N/A AFLAS® N/A No Spring $10.64 Add To Cart
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FPCHK685-8F8F-AF,OP N/A 1/2 Female NPT N/A 1/2 Female NPT N/A AFLAS® N/A 1 psi - 302 Stainless (O-Ring Poppet) $10.64 Add To Cart
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FPCHK685-8F8F-AF,OP,12#,HAST N/A 1/2 Female NPT N/A 1/2 Female NPT N/A AFLAS® N/A 12 psi - Hastelloy (O-Ring Poppet) $10.64 Add To Cart
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FPCHK685-8F8F-AF,OP,3# N/A 1/2 Female NPT N/A 1/2 Female NPT N/A AFLAS® N/A 3 psi - 302 Stainless (O-Ring Poppet) $10.64 Add To Cart
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FPCHK685-8F8F-AF,OP,3#,HAST N/A 1/2 Female NPT N/A 1/2 Female NPT N/A AFLAS® N/A 3 psi - Hastelloy (O-Ring Poppet) $10.64 Add To Cart
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FPCHK685-8F8F-AF,OP,7# N/A 1/2 Female NPT N/A 1/2 Female NPT N/A AFLAS® N/A 7 psi - 302 Stainless (O-Ring Poppet) $10.64 Add To Cart
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FPCHK685-8F8F-AF,OP,7#,HAST N/A 1/2 Female NPT N/A 1/2 Female NPT N/A AFLAS® N/A 7 psi - Hastelloy (O-Ring Poppet) $10.64 Add To Cart
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FPCHK685-8F8F-AF,OP,HAST N/A 1/2 Female NPT N/A 1/2 Female NPT N/A AFLAS® N/A 1 psi - Hastelloy (O-Ring Poppet) $10.64 Add To Cart
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FPCHK685-8F8F-B,DP,1/3#,HAST N/A 1/2 Female NPT N/A 1/2 Female NPT N/A Buna-N N/A 1/3 psi - Hastelloy (Disc Poppet) $10.64 Add To Cart
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FPCHK685-8F8F-B,NO SPRING N/A 1/2 Female NPT N/A 1/2 Female NPT N/A Buna-N N/A No Spring $10.64 Add To Cart
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FPCHK685-8F8F-B,OP N/A 1/2 Female NPT N/A 1/2 Female NPT N/A Buna-N N/A 1 psi - 302 Stainless (O-Ring Poppet) $10.64 Add To Cart
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FPCHK685-8F8F-B,OP,12#,HAST N/A 1/2 Female NPT N/A 1/2 Female NPT N/A Buna-N N/A 12 psi - Hastelloy (O-Ring Poppet) $10.64 Add To Cart
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FPCHK685-8F8F-B,OP,3# N/A 1/2 Female NPT N/A 1/2 Female NPT N/A Buna-N N/A 3 psi - 302 Stainless (O-Ring Poppet) $10.64 Add To Cart
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FPCHK685-8F8F-B,OP,3#,HAST N/A 1/2 Female NPT N/A 1/2 Female NPT N/A Buna-N N/A 3 psi - Hastelloy (O-Ring Poppet) $10.64 Add To Cart
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FPCHK685-8F8F-B,OP,7# N/A 1/2 Female NPT N/A 1/2 Female NPT N/A Buna-N N/A 7 psi - 302 Stainless (O-Ring Poppet) $10.64 Add To Cart
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FPCHK685-8F8F-B,OP,7#,HAST N/A 1/2 Female NPT N/A 1/2 Female NPT N/A Buna-N N/A 7 psi - Hastelloy (O-Ring Poppet) $10.64 Add To Cart
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FPCHK685-8F8F-B,OP,HAST N/A 1/2 Female NPT N/A 1/2 Female NPT N/A Buna-N N/A 1 psi - Hastelloy (O-Ring Poppet) $10.64 Add To Cart
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FPCHK685-8F8F-E,DP,1/3# N/A 1/2 Female NPT N/A 1/2 Female NPT N/A EPDM N/A 1/3 psi - 302 Stainless (Disc Poppet) $10.64 Add To Cart
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FPCHK685-8F8F-E,DP,1/3#,HAST N/A 1/2 Female NPT N/A 1/2 Female NPT N/A EPDM N/A 1/3 psi - Hastelloy (Disc Poppet) $10.64 Add To Cart
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FPCHK685-8F8F-E,NO SPRING N/A 1/2 Female NPT N/A 1/2 Female NPT N/A EPDM N/A No Spring $10.64 Add To Cart
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