• 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

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FPCHK687-12F12F-F,NO SPRING N/A 3/4 Female NPT N/A 3/4 Female NPT N/A Viton® N/A No Spring $23.40 Add To Cart
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FPCHK687-12F12F-F,OP N/A 3/4 Female NPT N/A 3/4 Female NPT N/A Viton® N/A 1psi - 302 Stnls O-Rng Poppet $23.40 Add To Cart
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FPCHK687-12F12F-F,OP,3#,HAST N/A 3/4 Female NPT N/A 3/4 Female NPT N/A Viton® N/A 3psi - Hstly O-Rng Poppet $23.40 Add To Cart
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FPCHK687-12F12F-F,OP,7# N/A 3/4 Female NPT N/A 3/4 Female NPT N/A Viton® N/A 7psi - 302 Stnls O-Rng Poppet $23.40 Add To Cart
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FPCHK687-12F12F-F,OP,HAST N/A 3/4 Female NPT N/A 3/4 Female NPT N/A Viton® N/A 1psi - Hstly O-Ring Poppet $23.40 Add To Cart
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WFPCHK685-8M8M-F,DP,1/3# N/A 1/2 Male NPT N/A 1/2 Male NPT N/A Viton® N/A 1/3 psi - 302 Stainless (Disc Poppet) $18.36 Add To Cart
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WFPCHK685-8M8M-F,DP,1/3#,HAST N/A 1/2 Male NPT N/A 1/2 Male NPT N/A Viton® N/A 1/3 psi - Hastelloy (Disc Poppet) $18.36 Add To Cart
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WFPCHK685-8M8M-F,NO SPRING N/A 1/2 Male NPT N/A 1/2 Male NPT N/A Viton® N/A No Spring $18.36 Add To Cart
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WFPCHK685-8M8M-F,OP N/A 1/2 Male NPT N/A 1/2 Male NPT N/A Viton® N/A 1 psi - 302 Stainless (O-Ring Poppet) $18.36 Add To Cart
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WFPCHK685-8M8M-F,OP,12#,HAST N/A 1/2 Male NPT N/A 1/2 Male NPT N/A Viton® N/A 12 psi - Hastelloy (O-Ring Poppet) $18.36 Add To Cart
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WFPCHK685-8M8M-F,OP,3# N/A 1/2 Male NPT N/A 1/2 Male NPT N/A Viton® N/A 3 psi - 302 Stainless (O-Ring Poppet) $18.36 Add To Cart
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WFPCHK685-8M8M-F,OP,3#,HAST N/A 1/2 Male NPT N/A 1/2 Male NPT N/A Viton® N/A 3 psi - Hastelloy (O-Ring Poppet) $18.36 Add To Cart
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WFPCHK685-8M8M-F,OP,7# N/A 1/2 Male NPT N/A 1/2 Male NPT N/A Viton® N/A 7 psi - 302 Stainless (O-Ring Poppet) $18.36 Add To Cart
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WFPCHK685-8M8M-F,OP,7#,HAST N/A 1/2 Male NPT N/A 1/2 Male NPT N/A Viton® N/A 7 psi - Hastelloy (O-Ring Poppet) $18.36 Add To Cart
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WFPCHK685-8M8M-F,OP,HAST N/A 1/2 Male NPT N/A 1/2 Male NPT N/A Viton® N/A 1 psi - Hastelloy (O-Ring Poppet) $18.36 Add To Cart
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WFPCHK685-8M8F-F,DP,1/3# N/A 1/2 Male NPT N/A 1/2 Female NPT N/A Viton® N/A 1/3 psi - 302 Stainless (Disc Poppet) $18.36 Add To Cart
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WFPCHK685-8M8F-F,DP,1/3#,HAST N/A 1/2 Male NPT N/A 1/2 Female NPT N/A Viton® N/A 1/3 psi - Hastelloy (Disc Poppet) $18.36 Add To Cart
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WFPCHK685-8M8F-F,NO SPRING N/A 1/2 Male NPT N/A 1/2 Female NPT N/A Viton® N/A No Spring $18.36 Add To Cart
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WFPCHK685-8M8F-F,OP N/A 1/2 Male NPT N/A 1/2 Female NPT N/A Viton® N/A 1 psi - 302 Stainless (O-Ring Poppet) $18.36 Add To Cart
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WFPCHK685-8M8F-F,OP,12#,HAST N/A 1/2 Male NPT N/A 1/2 Female NPT N/A Viton® N/A 12 psi - Hastelloy (O-Ring Poppet) $18.36 Add To Cart
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WFPCHK685-8M8F-F,OP,3# N/A 1/2 Male NPT N/A 1/2 Female NPT N/A Viton® N/A 3 psi - 302 Stainless (O-Ring Poppet) $18.36 Add To Cart
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WFPCHK685-8M8F-F,OP,3#,HAST N/A 1/2 Male NPT N/A 1/2 Female NPT N/A Viton® N/A 3 psi - Hastelloy (O-Ring Poppet) $18.36 Add To Cart
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WFPCHK685-8M8F-F,OP,7# N/A 1/2 Male NPT N/A 1/2 Female NPT N/A Viton® N/A 7 psi - 302 Stainless (O-Ring Poppet) $18.36 Add To Cart
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WFPCHK685-8M8F-F,OP,7#,HAST N/A 1/2 Male NPT N/A 1/2 Female NPT N/A Viton® N/A 7 psi - Hastelloy (O-Ring Poppet) $18.36 Add To Cart
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WFPCHK685-8M8F-F,OP,HAST N/A 1/2 Male NPT N/A 1/2 Female NPT N/A Viton® N/A 1 psi - Hastelloy (O-Ring Poppet) $18.36 Add To Cart
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