Valves • Check Valves

Check valves are used for automatically limiting fluid flow in a piping system to a single direction

There are many different types of check valves available from the manufacturers below. You'll find product information on Teflon, PVC and pump check valves;  from companies such as TRW Mission, Flowtech and Wheatley; constructed for different applications, such as heat pump, sump pump or  air pump check valves; you'll also find check valve specifications for miniature, gas and float ball check valves.

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  • Parker Hannifin Corp.

    Parker manufactures and offers five series' of check valves. The CF Series feature pressure ratings of 3000 PSIG (207 Bar). The C Series are available in six sizes with port sizes from 1/8 inch up to one inch. Their CB Series check valves offer pressure ratings of 3000 PSIG (207 Bar) to 6000 PSIG (414 Bar), and inlet sizes of 1/16" to 3/4". The CO Series are designed for demanding leak integrity applications.

  • Kepner Products

    Check and relief check valves are offered in inline, cartridge, ball and split flange types. These are spring-operated poppet, with optional relief settings to allow free flow in only one direction and prevent backflow. They also feature zero leak (bubble-tight) seals at low and high pressures.

  • Simtech USA

    Simtech is a provider thermoplastic check valves. Their true union ball check valves are round machined with a tumbled ball. Internal splines minimize pressure drops. Simtech's wafer types are chemical resistant and compact for ease of installation. Their horizontal swing designs are designed for wastewater treatment, agricultural irrigation and chemical plant applications.

  • DFT Inc.

    DFT manufactures in-line check valves in four different styles; threaded, wafer, flanged and sanitary. The Basic threaded valve is an all-purpose, spring-assisted, in-line configuration. The Restrictor threaded check valve is used for applications that require higher cracking pressures to open it. The ALC Wafer type is an in-line, spring assisted, single guided "wafer" design to prevent "water hammer" and "reverse" flow.

  • C.I. Thornburg Co., Inc.

    C.I. Thornburg serves the municipal water and wastewater industry in all of West Virginia, Kentucky, Tennessee and the southern part of Ohio. They offer swing type gravity operated check valves in sizes from 2 1/2" through 24". Thornburg also offers swing type lever and weight types with the same basic features. Both styles come with either FL. x FL. ends or M.J. x M.J. ends. Swing type spring and lever check valves are available with either adjustable weight or adjustable spring tension to control opening and closing of the clapper.

  • The Specialty Mfg. Co. (SMC)

    SMC manufactures a variety of plastic, brass and stainless steel check valves designed in ball, poppet and foot styles. Plastic types incorporate multiple configurations, sizes, materials and cracking pressures and feature pipe thread (NPT), hose barb, push-to-connect and JACO end configurations. Brass and stainless steel check valves feature piston, poppet and ball styles with pipe thread (NPT), hose barb and flare end configurations in pressure ranges to 3000 psi.

  • U.S. Plastic Corp.

    US Plastic Corp distributes a variety of check valves with spherical or ball shaped closure members. Materials include PVDF, CPVC, polypropylene and PVC. Brands also include Asahi, Cepex, Hayward, Nibco, and more. Types include Asahi PVDF, Cepex ball and economy wafer, Hayward CPVC/polypropylene/PVC true union ball, Hayward swing, mini, Nibco chemtrol true union ball, PVC true union ball, SMC PVC, and sump pump swing check valves.

  • Check-All Valve

    Can design and manufacture their check valves for almost any application. Their flange insert configurations provide the simplest most economical way to install check valves in a piping system. Wafer insert types are designed to fit between two mating ANSI flanges. Sanitary cartridge types are made of 316 stainless steel for use in new or existing sanitary systems. Their Universal low pressure configuration is a one piece body machined from bar stock and is designed for minimum pressure drop.

  • Generant

    Generant manufactures a broad offering of check valves, whether your application requires ultra low cracking pressures or MAWP’s of up to 10,000 Psig. Standard products offer pressure ratings for brass to 3,000 Psi, and stainless to 4,500 Psi MAWP. Poppet types come in brass and stainless steel up to 3000 Psi MAWP. One piece check valves come with many standard seal materials and crack pressures. Adjustable styles are field adjustable or factory preset with pressure ratings to 3000 Psi MAWP.

  • Nibco

    Nibco manufactures bronze, cast iron and ductile iron check valves. Bronze types feature horizontal swing, inline lift and bolted bonnet configurations with pressure ratings ranging from 125 PSI/8.6 Bar to 300 PSI/20.7 Bar. There are nearly 10 models to choose from. Typical services include hot and cold water, HVAC, steam, compressed air and gas. There are also nearly 10 models of cast iron check valves available with pressure ratings from 125 PSI/8.6 Bar to 250 PSI/17.2 Bar.

  • Mueller Steam Specialty

    Mueller Steam Specialty is a check valve manufacturer offering cast iron, bronze, cast carbon steel, cast stainless steel and cast bronze styles. Types include wafer, globe, silent and NPT. Mueller also offers specialty products like Chexter pivot check valves in aluminum bronze, carbon steel, stainless steel, cast iron and rf carbon steel.

  • Vaccon Co., Inc.

    Vaccon is a manufacturer of the VCV Series of vacuum check valves designed for vacuum applications that require high flow and low cracking pressure. Maximum vacuum flow, with zero flow restriction, ranges from 4.0 SCFM (113 lpm) to 30.0 SCFM (849 lpm), depending on which model you choose. Cracking pressures range from 4.0 mbar to 10.7 mbar. All vacuum products are made of anodized aluminum body material. Vacuum check valves seal and hold vacuum for clamping, pick and place and vessel evacuation applications, and offer high flow capacity for rapid evacuation.

  • Industrial Specialties Mfg.

    Industrial Specialties is a manufacturer and distributor of miniature pneumatic, vacuum and fluid circuitry components. Available products include a variety of check valves constructed of metal or plastic. Plastic styles include duckbill, spring-loaded, push in and diaphragm designs. Metal check valve products are offered in ball, piston and poppet configurations.

  • Smith Valve

    Smith valve is a manufacturer of piston, ball and swing check valves. End connections and pressure classes from 150 through 2500 are available in all types. Choose from body materials of A105, LF2, F11, F5, F22, F9,  316/316L,  304/304L, 316H, 304H, 317/317L, 321, 347, 347H, F51,  F44,  F20,  I825,  I600, and M400. Smith's Class 800 threaded and socketweld check valves include bolted cap piston, spring piston, ball, spring ball and swing types.

  • Williams E. Williams Valve Corp

    Williams manufactures swing check valves for industrial and commercial applications. Their cast steel swing configurations feature a seal-welded seat and bosses for taps and bypass. Options include alternate trims, NACE MR-01-75 and pressure seal design. Their stainless steel swing check valves feature teflon or graphite packing and gaskets with options like API 600 heavy wall and soft seats.

  • Metraflex

    Metraflex offers a variety of check valve types. Globe style silent configurations eliminate water hammer with silent operation. Features include a center guided single disc, and bronze to bronze seating with special stainless steel spring control. Pressure/temperature ratings range from 150-200 PSI at 150 degrees. Wafer style silent check valves offer the same features and are rated to both 125 lb. to 250 lb. flange class.

  • Georg Fischer Piping Systems

    Georg Fischer offers check valves in multiple configurations, including angle seat, ball, gate, and needle types. Angle seat check valves feature PN 10 nominal pressure and PVC and ABS materials. Ball styles are self closing and self cleaning, and come in various materials and end connections. Gate types are PVC wafer designs with vertical or horizontal mounting.

  • GA Industries, Inc.

    GA Industries manufactures engineered check valves that can be used in rigorous applications. They offer benefits such as non-slam operation, surge reduction, low headloss and operational adjustability. Their cushioned swing check valve is a counter-weighted to close before flow reversal, without slam, bang, hammer and shock. Their tilting disc type uses an offset pivot disc design that counter-acts the disc's tendency to be slammed shut by reversing water.

  • Cole Industrial

    Cole Industrial maintains a line of standard swing check valves in an assortment of body, disc, and seating materials. Products includes swing, wafer, cone, ball and in-line disc check valves. Cole Industrial supplies Newco, Conbraco, Sure Flow, and Mueller products.

  • Superior Valve Co.

    Superior provides check valves of carbon/stainless steel, cast bronze, ductile iron, carbon steel, and stainless steel materials. Wafer types have a short pattern style. Silent types have a in-line and threaded style. Single disc configurations are in a swing and wafer style. Dual disc styles feature a wafer design.