Diaphragm Check Valves

Diaphragm Check Valves

Plastic Diaphragm Check Valves feature Straight Shaft, Single Barb, Triple Barb, Miniature, Precision Molded, Acrylic and High Flow Check Valves. Several Diaphragm and Housing options are available.

Diaphragm Check Valves Options

  • CV Series - Straight Shaft Check Valves

    CV Series - Straight Shaft Check Valves

    These low-pressure straight shaft or port (non-barbed) plastic diaphragm check valves provide backflow protection for fluid, air, gas and vacuum flows in a very broad range of applications.

    Choose between nylon, polypropylene or PVDF (Kynar®) body materials. EPDM, fluorosilicone (FVMQ), silicone or Viton™ (FKM or FPM) diaphragm material options. 1/8” flexible tubing inner diameter (ID) connections.

    • Highly reliable performance
    • Can be installed in any position for maximum flexibility
    • Free-floating diaphragms respond to the slightest pressure change
    • Very rapid response times between free-flow and no-flow conditions
    • Designed to perform at high (automotive) industry standards but very economical
  • CV Series - Single Barb Check Valves

    CV Series - Single Barb Check Valves

    These low-pressure single barb hose barbed plastic diaphragm check valves provide backflow protection for fluid, air, gas and vacuum flows in a very broad range of applications.

    Choose between nylon, polypropylene or PVDF (Kynar®) body materials. EPDM, epichlorohydrine (ECO), fluorosilicone (FVMQ), or Viton™ (FKM or FPM) diaphragm material options. 3/16", 1/4", 5/16" or 3/8" flexible tubing inner diameter (ID) connections.

    • Highly reliable performance
    • Can be installed in any position for maximum flexibility
    • Free-floating diaphragms respond to the slightest pressure change
    • Very rapid response times between free-flow and no-flow conditions
    • Designed to perform at high (automotive) industry standards but very economical
  • CV Series - Triple Barb Check Valves

    CV Series - Triple Barb Check Valves

    These low-pressure triple barb hose barbed plastic diaphragm check valves provide backflow protection for fluid, air, gas and vacuum flows in a very broad range of applications.

    Choose between nylon or PVDF (Kynar®) body materials. Epichlorohydrin (ECO) or Viton™ (FKM or FPM) diaphragm material options. 3/8" flexible tubing inner diameter (ID) connections.

    • Highly reliable performance
    • Can be installed in any position for maximum flexibility
    • Free-floating diaphragms respond to the slightest pressure change
    • Very rapid response times between free-flow and no-flow conditions
    • Designed to perform at high (automotive) industry standards but very economical
  • C Series - Miniature Plastic Check Valves

    C Series - Miniature Plastic Check Valves

    • 1/16”, 1/8” Hose Barb and 10-32 Female threads available
    • Body materials include Polypropylene and Polysulfone
    • Miniature size Plastic Diaphragm Check Valves with low cracking pressures
  • CVN/CVP/CVK Series - Precision Molded Check Valves

    CVN/CVP/CVK Series - Precision Molded Check Valves

    • Inlet: 1/8" to 3/8" Hose Barb, 1/8" Male NPT
    • Outlet: 1/8" to 3/8" Hose Barb
    • Available with Silicone, Viton and Neoprene diaphragm
    • Body materials include Nylon, Polycarbonate, Kynar and Polypropylene
    • All parting lines on the critical sealing surfaces have been eliminated
    • After molding, check valves are assembled using a non-toxic technique without the use of foreign materials

    Performance Characteristics

    • Crack: 1/2 psi
    • Seal: 1.9 psi
    • Max Pressure: 50 psi
  • CVRT Series - High Flow Check Valves

    CVRT Series - High Flow Check Valves

    • 1/8” to 3/8” Hose Barb
    • Acrylic body with a silicone seal
  • LCVA Series - Luer Check Valves

    LCVA Series - Luer Check Valves

    • Male Luer Lock, Male Slip Luer and Female Luer Thread connections
    • Polycarbonate body with a silicone seal