http://www.plastomatic.com/ckm-vs-ballcheck.wmv

    Series CKM Check Valves are molded of Type 1, Grade 1, PVC (Polyvinyl Chloride), Glass-filled Polypropylene, Corzan® CPVC, and Kynar® PVDF in sizes 1/2", 3/4" and 1". A machined version, Series CK is available in PTFE in sizes 3/4" and 1". Diaphragms are of EPDM or FKM (Viton®). Threaded connections are standard on all models. Socket end connectors are available on all Series CKM models.
    • Design: Self-sealing - they are not dependent on gravity, mounting position or reverse flow, a significant improvement over ball check valves.
    • Silent Operation: No internal sliding or loose parts to slam or vibrate, chattering is eliminated!
    • Dependability: Leak-free sealing protects against the potential hazards created by reverse flow of corrosive liquids such as acids, caustics and chlorine solutions.
    • Repetitive Long Term Sealing: Diaphragm automatically positions itself against seat in the identical location. Superior to ball check valves which often leak at lower pressures.
    • Convenience: Union nut on Series CKM simplifies valve inspection/removal with minimum piping breakdown.
    • Minimal Cracking Pressure: Diaphragm begins to open at approximately 1.0 to 1.5 PSI.
    • Cost Efficient: Designed to improve system performance and competitively priced.
    • Great Selection: Molded valves available in Geon® PVC, Kynar® PVDF, glass-filled Polypropylene, and now Corzan® CPVC. Series CK available in PTFE.
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Item #

Pipe Size

End Connections

Body Material

Seals

Price

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N/A 1/2 inches N/A Socket N/A PVC N/A Viton $71.59 Add To Cart
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N/A 1/2 inches N/A Socket N/A PVC N/A EPDM $65.99 Add To Cart
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N/A 3/4 inches N/A Socket N/A PVC N/A Viton $83.95 Add To Cart
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N/A 3/4 inches N/A Socket N/A PVC N/A EPDM $78.33 Add To Cart
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N/A 1 inches N/A Socket N/A PVC N/A Viton $100.71 Add To Cart
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N/A 1 inches N/A Socket N/A PVC N/A EPDM $95.10 Add To Cart
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N/A 1/2 inches N/A Socket N/A CPVC N/A Viton $111.89 Add To Cart
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N/A 1/2 inches N/A Socket N/A CPVC N/A EPDM $106.28 Add To Cart
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N/A 3/4 inches N/A Socket N/A CPVC N/A Viton $145.12 Add To Cart
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N/A 3/4 inches N/A Socket N/A CPVC N/A EPDM $125.32 Add To Cart
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N/A 1 inches N/A Socket N/A CPVC N/A Viton $151.03 Add To Cart
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N/A 1 inches N/A Socket N/A CPVC N/A EPDM $145.46 Add To Cart
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N/A 1/2 inches N/A Socket N/A GPP N/A Viton $121.94 Add To Cart
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N/A 1/2 inches N/A Socket N/A GPP N/A EPDM $116.37 Add To Cart
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N/A 3/4 inches N/A Socket N/A GPP N/A Viton $142.13 Add To Cart
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N/A 3/4 inches N/A Socket N/A GPP N/A EPDM $135.37 Add To Cart
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N/A 1 inches N/A Socket N/A GPP N/A Viton $162.23 Add To Cart
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N/A 1 inches N/A Socket N/A GPP N/A EPDM $156.65 Add To Cart
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N/A 1/2 inches N/A Socket N/A PVDF N/A Viton $166.71 Add To Cart
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N/A 1/2 inches N/A Socket N/A PVDF N/A EPDM $161.11 Add To Cart
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N/A 3/4 inches N/A Socket N/A PVDF N/A Viton $201.38 Add To Cart
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N/A 3/4 inches N/A Socket N/A PVDF N/A EPDM $195.80 Add To Cart
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N/A 1 inches N/A Socket N/A PVDF N/A Viton $233.81 Add To Cart
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N/A 1 inches N/A Socket N/A PVDF N/A EPDM $228.26 Add To Cart
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N/A 3/4 inches N/A Socket N/A PTFE N/A Viton $419.55 Add To Cart
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