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Spring Check Valves

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  • Parker Hannifin Corp.

    Parker Hannifin produces copper, spring check valves used in refrigeration and air conditioning systems to maintain flow in only one direction. Spring check valves are available in connections of 3/8 ID inches to 1-1/8 ID inches, and are used with dryers or stainers, compressors, or in system lines to redirect flow to another circuit.

  • C.I. Thornburg Co., Inc.

    C.I. Thornburg designs and manufactures spring check valves with maximum working pressures of 150 psig or 175 psig, and test pressure of 300 psig or 350 psig. Available in sizes ranging from 2-1/2" to 24", these spring check valves feature flanged ends with bronze or rubber disc facings.

  • Pneuline Supply Inc.

    Pneuline Supply Inc. distributes plastic ball and metal ball spring check valves. The plastic spring check valves are available in 1/8 barb to 3/8, and 1/8 NPT to 1/4. The standard 326 ball and spring check valves feature .187 flow through with a maximum 2500 psi and 1 psi crack pressure.

  • Check-All Valve

    Check All Valve manufactures spring check valves that feature temperature ratings of -75F to 550F, -20F to 400F, -320F to 400 F, -320F to 700F, and -320F to 1000F. The valves feature maximum pressure of 1500 psi and stainless steel, Hastelloy, Monel, Inconel, and titanium bodies.

  • General Air Products, Inc.

    General Air Products manufactures stainless steel spring check valves for the pressure washer, compressed air, fire protection, automotive, specialty gas, fluid power, and pneumatic industries. The various spring check valves feature set pressure ranges of 75 psi to 250 psi, 50 psi to 350 psi, 25 psi to 300 psi. Maximum temperatures include 250F and 350F.

  • The Specialty Mfg. Co. (SMC)

    The Specialty Mfg. Co. manufactures 1 psi stainless spring and ball check valves that feature gray PVC construction. The valves feature a spring material for chemical resistance applications, and are available as nylon, PVDF, and glass filled.

  • Jaeco Fluid Systems, Inc.

    Jaeco Fluid Systems manufactures spring-loaded 2 psi or 10 psi ball check valves. These spring check valves are available in 1/4" to 1" IPS sizes, feature all stainless steel construction, pressures up to 2,500 psi, and temperatures ranging from -15F to 650F. The valves are usable on metering pumps and usable as injection line check valves.

  • Sanitary Process Components, Inc.

    Sanitary Process Components manufactures spring disc-type check valves for sanitary clean service applications in the pharmaceutical and bio-pharmaceutical industries. The spring check valves can be mounted vertically or horizontally, and feature high temperature and pressure resistance. The valves also feature 316L stainless steel construction and O-ring seal design that minimizes bacteria traps.

  • Velan

    Velan Inc. manufactures dual plate check valves that feature a high torsion spring, which is designed for potentially severe applications and ensures the valve closes quickly. These spring valves are available in sizes from 2" to 60", with pressure rating of ASME Class 150-2500. Standard connections include wafer, lug, flanged, butt weld, and hub.

  • MSC Industrial Supply Co.

    MSC Industrial Supply Co. distributes spring check valves manufactured by Conbraco, Control Devices, F.C. Kingston, Ham-let, Legend Valve, Legris, Little Giant, NIBCO, Parker, Plast-O-Matic, Sharpe, SMC, Strataflo, and Watts.

  • Circle Valve Technologies Inc.

    Circle Valve Technologies, Inc. is a distributor of valve products from a variety of manufacturers. Available products include the 200 series spring check valves brass, aluminium, carbon steel or stainless steel construction, as well as maximum operating pressure up to 3000 psig, zero leak design, large flow capacity and operating temperatures up to 550ºF.