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What are Check Valves?
Check Valves are mechanical devices that permit fluid to flow through them in one direction only. The valve often uses a ball and spring that opens under a specified pressure but closes as the pressure decreases to prevent backflow.

Key specifications include valve type, port connections, valve size, minimum and maximum pressure ratings, media, and materials of construction.

Check valves are used on gas lines, for air service, with pumpsanywhere that fluid needs to move in a single direction.
 

Check Valves Suppliers

Displaying 1 to 25 out of 1,999 suppliers | Filter Results

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The Lee Company

Thomas Verified
ico-map Locations Manufacturer* $100 - 249.9 Mil 1948 1000+

Supplier of fluid control products for hydraulic & pneumatic systems in commercial & military aircraft, spacecraft, missiles, naval vessels, machine tools, down-hole oil tools, power generation equipment, race cars & other applications. Check valve products available include IMH insert models featuring compact design, metal to metal seating, ball guide, long term pressure tolerances up to 4000 PSID & operating temperature range of -50° F to +300° F. Other check valve products offer features such as forward or reverse flow as well as optional side exit & screens.

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Check All Valve Manufacturing Co.

Thomas Verified
ico-map West Des Moines, IA Manufacturer*, Custom Manufacturer $10 - 24.9 Mil 1959 10-49

ISO 9001:2015 certified. Manufacturer and designer of silent, spring loaded, poppet and inline check valves for elbows, tees, flow skewing devices and centrifugal pumps. Various types include bushing, butt or socket weld, connector, cartridge, tubing, low and high pressure and vacuum flange and wafer insert check valves. Made from alloy, alloy-20, alloy C-276, alloy-B, 316 stainless steel, carbon steel, brass, Monel®, titanium, PTFE and PVC. Comes with Aflas®, Buna-N, EPDM, Kalrez®, metal to metal, neoprene and Viton® seats. Flanged, threaded, sanitary, welded, tubing and lined pipe connection options are also available. Used as check or relief valves and vacuum breakers. Meets NACE standards. CE certified. Made in the USA.

Brands+

Check-All

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Manufacturer of non-return, pressure, cryogenic and inline check valves made from 316 stainless steel, bronze and brass. Available in 725 to 15,000 psi operating pressure. Features vary depending upon model, including poppets, forged body construction and spring assisted closures. Suitable for fill system, backflow preventer, test panel, dual fuel turbine, injection system, lubrication skid, transport, storage and water treatment applications. Serves the chemical, petrochemical, oil and gas, microelectronics, power, pulp and paper, research, pharmaceutical and mining industries.

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Lumaco

Thomas Verified
ico-map Hackensack, NJ Manufacturer*, Custom Manufacturer $1 - 4.9 Mil 1961 1-9

Manufacturer of spring loaded concentric check valves made from 316 stainless steel. Check valves are available in 0.5 in. to 4 in. sizes with 1/2 in. to 4 in. valve opening. Features include Viton® and EPDM seals, PTFE stems, stainless steel springs and heavy duty clamps.

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SVF Flow Controls

Thomas Verified
ico-map La Palma, CA Manufacturer*, Custom Manufacturer $10 - 24.9 Mil 1982 10-49

ISO 9001:2015 certified. Manufacturer of standard and custom forged, swing and flanged check valves for the refining and petrochemical industries. Made from stainless steel, carbon steel and ductile iron. Features vary depending upon model, including manually operated, EPDM seats, spring loaded double aluminum bronze discs, fusion bonded epoxy coatings, bolted bonnets, covers and reduced ports. Ductile iron check valves are suitable for vertical and horizontal pipeline installation. Meets ASTM, ANSI, API and ASME standards. RoHS and REACH compliant. FDA, FM and NSF approved. UL listed.

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Swagelok Company

Thomas Verified
ico-map Locations Manufacturer*, Distributor, Custom Manufacturer 1947 1000+

ISO 9001:2015 certified custom manufacturer of check valves made from aluminum, brass, carbon and stainless steel and alloys. Types of check valves include lift and poppet check valves. Valves are available in 6 mm to 12.5 mm sizes and with face seal glands and nuts, tube fittings, butt welds and stubs. ASME approved and METI/KHK and TUV certified.

Brands+

Kenmac, Swagelok, VCO

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O'Keefe Controls Co.

Thomas Verified
ico-map Monroe, CT Manufacturer* $1 - 4.9 Mil 1975 10-49

Manufacturer of in-line and miniature check valves made from brass, stainless steel, Buna-N, and Viton. Available with 0.031 in. orifice dia., 180 degrees F to 300 degrees F maximum temperature and 125 psig to 1,000 psig maximum operating pressure. Ball type check valves are suitable for controlling air, water, inert gas, light oil and liquid flow. Various features include metal construction, high pressure capability and optional O-ring body seals.

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RED-WHITE VALVE CORP.

Thomas Verified
ico-map Lake Forest, CA Manufacturer* $10 - 24.9 Mil 1971 10-49

Manufacturer of in-line, swing and dual plate check valves made from stainless steel, cast iron, bronze and brass. Available in 1/4 to 12 in. sizes. Features vary depending upon model, including spring loaded, wye patterns, plastic and low lead brass discs, PTFE gaskets, horizontal T patterns, PTFE seats, threaded end connections, bolted covers and wafer style body. Serves the plumbing, commercial and HVAC industries.

Brands+

Red-White Valve

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ASC Engineered Solutions

Thomas Verified
ico-map Locations Manufacturer* 1800 1000+

Manufacturer of check valves made from ductile iron and cast iron. Features vary depending upon model, including nitrile seats, bronze discs, seal rings, malleable iron plugs, closure bolts, EPDM disc coatings and grooved ends. Used on sprinkler and standpipe systems. Serves the energy, power, oil, gas, food, beverage, wastewater and mining industries.

Brands+

ABZ, FPPI, Gruvlok, Kennedy, SCI, SPF / Anvil, Sharpe

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Thermoplastic Valves, Inc.

Thomas Verified
ico-map Emmaus, PA Manufacturers' Rep*, Manufacturer $1 - 4.9 Mil 1986 1-9

Manufacturer of low pressure ball check valves made from thermoplastic, ethylene, fiberglass, polyvinyl chloride, polypropylene and stainless steel materials. Available in 1 to 10 in. size and 42 to 150 psi working pressure. Suitable for water applications. Serves the mining, fertilization, transportation, irrigation, oil, pharmaceutical and other industries.

Brands+

TVI

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Air Logic

Thomas Verified
ico-map Racine, WI Manufacturer* 1975 50-99

ISO 9001:2015 certified. Manufacturer of check valves for instrumentation application. Materials used are polypropylene, silicone, Celcon® and polysulfone. Comes with barbs for 1/16 in., 1/8 in. and 0.170 in. I.D. tubing. Specifications 75 psi maximum supply pressure and 5 micron filtration. Operating temperature ranges from 40 to 120 degrees F. Plastic needle and flow control valves are also available.

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PR Valves, LLC

Thomas Verified
ico-map South Houston, TX Distributor* $1 - 4.9 Mil 2002 1-9

Stocking distributor of check valves available in forged steel, cast steel, chrome molly, stainless steel, Monel®, Hastelloy® B & C, cast iron, ductile iron, bronze, brass & PVC. Electric, hydraulic & pneumatic actuations. Modifications include flange ups, conversions, coatings, hydro testing, packing changes & trim changes.

Brands+

Cameron, Contromatics, Edwards, Flowtek, Hancock, Kitz, Orbit, Smith, WKM, Walworth

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DFT Inc.

Thomas Verified
ico-map Locations Manufacturer*

Manufacturer of custom and standard in-line silent check valves. Types include vacuum breaker, sanitary, wafer, restrictor, flanged, wafer, and threaded check valves. Designed to prevent fluid system issues such as reverse flow and water hammer. Various features are available, including dual guided stems, soft seats for bubble-tight shutoff, and a pulse-damping design. Suitable for horizontal and vertical installations in liquid, gas, and steam applications. Available in various sizes. Designed to open at approximately 0.5 psi differential pressure and fully open at 1.0 psi differential pressure. Industries served include building, chemical, gas, mining, petroleum, power, pulp and paper, textiles, municipal, and water treatment. Meet NACE standards. One year warranty.

Brands+

ALC, BNT, Basic-Check, DFT, DLC, DSV, Excalibur, FBC, GLC, SCV, SCV-R, TLW, WLC, Y-Calibur

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Plast-O-Matic Valves, Inc.

Thomas Verified
ico-map Cedar Grove, NJ Manufacturer* $10 - 24.9 Mil 1967 50-99

Manufacturer of standard & custom check valves including diaphragm operated, self-sealing & normally-closed valves, encapsulated spring design valves & compact design low cracking pressure valves. Features include maximum working pressure of 150 psi at 77 degrees F & no internal metal parts. Services include product innovation, engineering, precision manufacturing, pressure, flow & corrosion-resistant plastic piping, quality testing & technical assistance. RoHS compliant.

Brands+

True Blue

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Circle Valve Technologies Inc.

Thomas Verified
ico-map Harleysville, PA Distributor* $1 - 4.9 Mil 1986 10-49

Distributor of valves. Check valves, solenoid valves, ball valves, cryogenic valves, relief valves, needle valves, plug valves, actuated valves, diaphragm valves, pressure regulators. Markets served include industrial gas, chemical, medical, power, marine, oil & gas processing.

Brands+

3B Filters, Aerodyne, Atkomatic, Circle Seal, Contromatics, Duravalve, Go, Gyrolok, Headline, Hoke, Jefferson Electric, K.F. Industries, Keane Controls, Para Plate, Rockwood Swendeman, Tomco, Ward

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Caylor Industrial Sales, Inc.

Thomas Verified
ico-map Dalton, GA Distributor* $10 - 24.9 Mil 1980 10-49

Distributor of check valves including horizontal swing bronze and bronze check valves. Horizontal swing bronze valves are available in 6.35 mm to 76.2 mm sizes with threaded ends. Bronze check valves are available with screw caps, integral seats and Y-pattern swing type discs. Horizontal swing bronze valves meet MSS SP-80 standards. Stock items available. JIT and 24/7 delivery.

Brands+

Apollo, Brass Craft, Bray, Cash Acme, Conbraco, Hammond, Kitz, Siemens, Spence, Watson McDaniel, Watts

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Guenther Supply, Inc.

Thomas Verified
ico-map Fond Du Lac, WI Distributor*, Service Company $10 - 24.9 Mil 1946 10-49

Distributor of wafer silent, pivot, industrial swing, diaphragm, butterfly, in-line adjustable spring, utility swing, Y-pattern and ball check valves. 316 stainless steel, bronze, carbon steel, forged steel, cast iron, ductile iron, polypropylene, PVC and CPVC materials used. Various features include PTFE seats/seals, pressed, flanged, threaded and soldered ends, welded seats with renewable seat rings, bolted and threaded bonnets. 24 hour emergency services available.

Brands+

Apollo, Bonney Forge, Mueller Steam Specialty

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WEH Technologies Inc.

Thomas Verified
ico-map Katy, TX Manufacturer*, Custom Manufacturer $5 - 9.9 Mil 1973 200-499

Manufacturer of standard and custom check valves made from stainless steel, galvanized steel, steel and brass. Available in various configurations. Comes with double ferrule fittings, NPT, UNF or metric threads, flanges, hose, internal/external threads, pipes and press-in fittings. Features vary depending upon model, including integrated multifunctional systems, pneumatic actuation, corrosion, wear, stress and tear resistance, hose connections, pipe ends, cartridge styles and metal-to-metal sealing systems. Serves the mechanical engineering and construction, chemical, pharmaceutical, food, material handling and medical industries. CE certified.

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United P & H Supply Co.

Thomas Verified
ico-map Milwaukee, WI Distributor* $10 - 24.9 Mil 1922 10-49

Distributor of check valves including stainless steel check valves. Spring-loaded and air blow check valves are available. Services include valve automation, vendor managed inventory, direct order entry and EDI. Industries served include biotech, industrial machinery, food and beverage, fabricated metals, printing, pulp and paper, primary metals, shipbuilding, utilities, commercial construction, healthcare facilities, municipalities and institutions. Kanban services are available.

Brands+

Alfa Laval, Dixon Sanitary, FloLok, Hammond, Milwaukee, Mueller, Newco, Nibco, Sharpe, Spears, Spirax Sarco, Vogt, Watts

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Allied Supply Company, Inc.

Thomas Verified
ico-map Huntsville, AL Distributor* $1 - 4.9 Mil 1963 10-49

Distributor of ball, butterfly, gate, globe and check valves. Industrial, marine and petrochemical industries served. Made in USA.

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BDI

Thomas Verified
ico-map Locations Distributor* $250 Mil. and over 1935 1000+

Distributor of valves including brass, electroless nickel plated brass, stainless steel, plastic & other materials. Types of valves include: ball, check, foot, hydraulic, butterfly, relief, safety, solenoid, toggle, push button, needle, & plug.

Brands+

Apollo, Argo-Hytos, Bray, Coilhose, Danfoss, Dixon, Dwyer, Flowtrend, HYDAC, Midland, Nachi, Parker, ROSS, SMC, Spirax Sarco, Swagelok, Zinga

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Ellsworth Adhesives

Thomas Verified
ico-map Locations Distributor* $100 - 249.9 Mil 1974 1000+

Distributor of check valves for using glue gun nozzles. Available in 0.16 in orifice size.

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Motion Industries, Inc.

ico-map Locations Distributor* $250 Mil. and over 1946 1000+

Distributor of valves made from bronze, carbon steel, aluminum, steel, brass, stainless steel and EPDM materials. Types include duckbill, easy lube, spring, ball cone, pneumatic, pilot and hydraulic valves. Check, lubrication metered and non-metered, speed and flow control, butterfly, globe, throttle, ball, cartridge and direct acting valves are also available. Serves the automotive, chemical, food, beverage, pulp, paper, lumber, wood, cement, iron, steel, rubber, plastic, oil and gas extraction industries.

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Dunham Rubber & Belting Corp.

Thomas Verified
ico-map Locations Distributor*, Manufacturer, Custom Manufacturer 1965 50-99

Manufacturer and distributor of standard and custom forged steel, 316 stainless steel and brass check valves. Types include air blow, domestic swing, spring, Y-ball and flow control check valves. Available in 1/2 in. to 4 in. sizes with 145 psi to 1,975 psi pressure. Features vary depending upon models and include special angled plunger design to prevent even low pressure leak-through, female threaded ends, bolted bonnets, pressurize lines design to clean out product or cleaning solutions.

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NewAge Industries, Inc.

Thomas Verified
ico-map Southampton, PA Manufacturer*, Distributor $25 - 49.9 Mil 1954 100-199

Supplier of check valves. Polypropylene with barb fitting style. For chemicals, water & air. Application assistance also available.