U.S. Valve, LLC - Linthicum Heights, MD
Manufacturer, Custom Manufacturer
Specializing in the design & manufacturing of high performance check valves & ball valves that feature low pressure drop & the highest CV available. Full port, double disc check valves are intended to produce flow that is as close as possible to laminar resulting in longer life & lower maintenance. Customer connections include npt, flanged, wafer type, welded ends & grooved (Victaulic) ends. Three-piece valves allow for inspection & removal from a piping system with relative ease. Custom design valves from OEMs for specific applications.
www.usvalve.com

Check All Valve Manufacturing Co. - West Des Moines, IA
Manufacturer, Custom Manufacturer
ISO 9001:2008 certified manufacturer & designer of spring loaded silent check valves. Types of valves include flange, lined pipe, sanitary, union, straight sided & glass pipe insert, sanitary cartridge, low & high pressure, socket weld, connector, bushing, horizontal, vertical flanged, miniature & tubing valves. Materials include carbon & stainless steel, high & non-ferrous alloys & titanium & nickel alloys. Specifications of valves include 1.25 in. to 20 in. nominal dia., pressure up to 10,000 psig & -196 degrees C to +593 degrees C storage temperature. Suitable for chemical, petrochemical, pharmaceutical, food & dairy & OEM applications. CE certified.
Brand Names: Check-All
www.checkall.com/catalog.html

Check Valves Products
	Flange Insert Check Valve (Style - F1) Flange Insert Check Valve (Style - F6) Union Insert Check Valve More

The Specialty Mfg. Co. (SMC) - Saint Paul, MN
Manufacturer
ISO 9001:2008 certified manufacturer of inline check valves including high pressure check valves & low pressure check valves made of various materials: brass, stainless steel & plastics (PVC, polypropylene, PVDF, nylon) with Buna-N, ethylene propylene, fluoroelastomer & neoprene seals. Available in multiple configurations, sizes including 1/8 in. to 1 in. NPT, 1/16 in. to 1/2 in. hose barb, 1/4 & 3/8 flare connections. Available in various types including piston check valves, poppet check valves & ball type check valves. Applications include air, vacuum, water, gas, cryogenic, oxygen, refrigeration & Freon, beverage, car wash & pressure wash, industrial, construction equipment, agricultural, automotive aftermarket, medical, dental, cleaning equipment & chemical processing.
valves.specialtymfg.com/category/check-valv...

Check Valves Products
	490 SERIES BALL CHECK VALVE - 1/4" to 3/8" NPT 410 SERIES PISTON CHECK VALVE - 1/4" NPT, 1/4" BSPP, 5/16" BARB 427 SERIES POPPET CHECK VALVE - 1/8" to 1/4" NPT, 1/8" to 1/2" BARB, 1/8" to 1/4" JACO, 1/4" to 3/8" PUSH-TO-CONNECT, 3/8" BIB More

Premier Hydraulics Inc. - Farrell, PA
Custom Manufacturer
Custom manufacturer of check valves. Other types include regulating, shut off, cartridge and ecology valves. Custom manufacturing capabilities include milling, drilling, plating, brazing, welding, thread coating and screw machining.
www.premier-hydraulics.com/products.htm

Parker Hannifin Instrumentation Products Div. - Huntsville, AL
Manufacturer
Lean manufacturing capable ISO 9001:2000 certified manufacturer of check valves including metal seated check valves & fully welded check valves. Features include noise free operation & low sulfur high purity 316L stainless steel construction. Check valves range in body sizes from 1.24 in. to 2.89 in. & temperature ratings from minus 10 degrees F to 150 degrees F with working pressures & maximum back pressures up to 3000 psig.
www.parker.com/portal/site/PARKER/menuitem....

Check Valves Products
	Check Valves

The Lee Co. - Westbrook, CT
Manufacturer, Custom Manufacturer, Manufacturers' Rep
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.
www.theleeco.com/LEEWEB2.NSF/AeroStart!Open...

DFT Inc. - Exton, PA
Manufacturer, Custom Manufacturer
ISO 9001:2008 certified custom manufacturer of silent check valves for air & gas applications. Types of check valves include threaded, axial flow, nozzle check, wafer & flanged valves.Valves are made from various materials including carbon steel, stainless steel & cast iron. Valves are available in various models, piping configurations & temperatures with specifications including 1/4 in. to 24 in. line size & 450 psi to 6,000 psi cold working pressure. Features include springs, O-rings, guard cages, seats, discs, gaskets, bolts, bushings & stems. Meets ANSI standards.
Brand Names: ALC, DFT, DLC, PDC, SCV
catalog.dft-valves.com/category/in-line-che...

Check Valves Products
	Sanitary Check Valves Threaded Check Valves Wafer Check Valves More

Crispin-Multiplex Mfg. Co. - Berwick, PA
Manufacturer
Manufacturer of check valves. Check valves include foot, globe, rubber flapper, swing, tilting, surge & wafer valves.
Brand Names: Crispin
www.crispinvalve.com/valvelegend.htm

Kepner Products Co. - Villa Park, IL
Manufacturer, Custom Manufacturer
Custom manufacturer of check valves made from brass, stainless steel & aluminum. Types of check valves include inline, cartridge, ball & split flange check valves. Relief, shuttle, lock & pilot valves are also available. Check valves are available in various sizes, end connections & flow rates with minus 184 degrees C to plus 232 degrees C temperature & maximum pressure rating up to 6,000 psi.
Brand Names: Kepner
www.kepner.com/product.htm

Check Valves Products
	Check Valves Input Part Number If Known Relief Check Valves (crack 5-150 PSI)

DK-LOK U.S.A. - Locations
Manufacturer
ISO 9001:2008 & ISO 14001:2004 certified. Manufacturer of check valves including ball type check valves. Types include poppet, one piece, adjustable & high pressure check valves. Meets OHSMS 18001, ASME & API standards.
Brand Names: D-Pro
catalog.dklokusa.com/category/check-valves

Check Valves Products
	V33 Series Poppet Check Valves VA33 Series Adjustable Check Valves VH36 Series High Pressure Check Valves More

Industrial Specialties Mfg, Inc. - Englewood, CO
Distributor, Manufacturer
ISO 9001:2008 Certified manufacturer & distributor of valves including plastic check valves, plastic push-in check valves & metal check valves. Plastic barbed & threaded check valves include duck bill, diaphragm, spring loaded & ball valves. Push-in valves include elbows, straight & tee valves. Metal barbed & threaded check valves include piston, poppet & high pressure check valves rated to 3000 psi.
industrialspec.com/checkvalves.html

Check Valves Products
	C Series - Miniature Plastic Check Valves CVS Series - Hi-Strength Check Valve CVT Series - Duckbill Check Valve More

Bonomi North America, Inc. - Rock Hill, SC
Manufacturer, Custom Manufacturer
Manufacturer of corrosion resistant in-line check valves. In-line check in. sizes & 200 psi W.O.G pressure, 1/2 psi low cracking pressure & plus 10 degrees to 250 degrees F temperature range. Features include corrosion resistant, press system & patented disc guide. Materials used include brass, polyetherimide, ethylene propylene diene monomer, acrylonitrile butadiene rubber (NBR) & stainless steel. Meets NSF 61 standards & UL listed.
www.bonominorthamerica.com/ita/elenco_prodo...

Generant - Butler, NJ
Distributor, Manufacturer, Custom Manufacturer
ISO 9001:2000 certified custom manufacturer of check stop valves. Check valves are in various types including adjustable, disc, inline, one piece, & poppet check valves. Specifications of check valves include nominal crack pressure ranging from 1 psi to 15 psi, maximum operating pressure up to 300 degrees F, & temperature rating ranging from minus 320 degrees F to plus 450 degrees F. Features of check valves include guided poppet with floating O-ring configuration & brass, carbon steel & stainless steel materials. Check valves are suitable for cryogenic system applications. ASTM & RoHs compliant.
Brand Names: Bi-Lok
www.generant.com/cv.shtml

Georg Fischer Piping Systems - Tustin, CA
Manufacturer
Six sigma capable ISO 9001 & ISO 14001 certified manufacturer & distributor of standard & custom plastic control check valves including ball type & Y type check valves. Types such as manual, actuated & pressure regulating valves are available. Types of pressure regulating valves include pressure retaining valves, pressure reducing valves & pressure relief valves. Actuated valves such as electric, pneumatic & solenoid valves are available.
Brand Names: PROGEF, Sygef
ecat.georgfischer.com/mediacockpit/servlet/...

Check Valves Products
	PVC Type 360 Standard CPVC More

Red Valve Co./Tideflex Technologies - Carnegie, PA
Manufacturer
Manufacturer of check valves. Types include in line check valves & rubber check valves. Inline check valves include housed inline, insertable inline, & specialty inline. Rubber check valves such as outfall check valves, inline check valves, & specialty check valves available. Check valves seal & close drop tight around debris with less than 1 psi of back pressure. Does not warp & freeze & does not require outside energy for operation.
www.redvalve.com/rv/index.php?/content/sect...

PR Valves, LLC - South Houston, TX
Distributor, Custom Manufacturer, Service Company
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.
Brand Names: CAMERON, Contromatics, Edwards Signaling, Flowtek, Hancock, Kitz, Orbit, Smith, WKM, Walworth
www.prvalves.com/valves.html

O'Keefe Controls Co. - Trumbull, CT
Manufacturer, Custom Manufacturer
Custom manufacturer of check valves made from brass, 303 stainless steel, Buna-N® & Viton®. Specifications of check valves include 0.031 in. orifice dia., 180 degrees F to 300 degrees F maximum temperature & 125 psig to 1,000 psig maximum operating pressure. Check valves are suitable for controlling air, water, inert gas, light oil & liquid flow.
www.okcc.com/PDF/Eco-line%20CkVlv%20.pdf

Delta Pacific Valve Mfg. Co. - Hauppauge, NY
Distributor, Manufacturer
Manufacturer & distributor of valve products for the petrochemical, refinery & oilfield industries. Valve products available include check types in a variety of styles such as full & reduced opening swing, dual plate wafer, metal seated, resilient seated, tilting disc, left, piston & silent check valves. Other valve products available include gate, globe, float, ball, & butterfly models.
Brand Names: DPV
www.deltapacificvalve.com/products/check.ht...

Parker/Snap-tite - Union City, PA
Manufacturer
Directional control valves to 10,000 psi, manual & solenoid operated, as well as flow control, relief & check valves.
www.snap-titequickdisconnects.com/products/...

Check Valves Products
	Check Valves

Plast-O-Matic Valves, Inc. - Cedar Grove, NJ
Manufacturer, Custom Manufacturer
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.
Brand Names: True Blue
www.plastomatic.com/check_valves.html

Aqua Environment Co., Inc. - Stinson Beach, CA
Manufacturer
Manufacturer of check valves made from Viton®, aluminum, brass & stainless steel. Specifications of check valves include 6,000 psi rated pressures, 6,000 psi back pressures, 3 psi to 8 psi opening pressures, 0.55 Cv flow capacities, 1/2 in. male NPT inlet ports, 1/2 in. female NPT outlet ports & 1.37 in. dia. hex & 2.55 in. lengths. Check valves are used between compressors & separators to prevent leak down via compressor valves & rings, filling station control & logic & control in cascade filling systems.
valvesandregulators.aquaenvironment.com/cat...

Check Valves Products
	684 High Flow Check Valve 955 Check Valves

Top Line Process Equipment Co. - Bradford, PA
Distributor, Manufacturer, Custom Manufacturer
Manufacturer of check valves including check sanitary stainless steel valves. Operating temperatures include minus 30 degrees F & 225 degrees F. Operating pressure include 150 psi & capacities include 4000 cubic ft. per hour. Types include concentric disc check valves, air blow check valves & ball check valves. Features include stainless steel springs, clamp end connections, remote or manual control & Buna or VIton® walls. Check valves meet 3A standards.
Brand Names: Top-Flo
www.abccorporate.com/index.php?src=director...

Service Pipe & Supply, Inc. - Indianapolis, IN
Distributor
Women-owned distributor of check valves, compressor valves, corrosion resistant valves, flow valves, & safety valves. Other products include actuators, air vents, back pressure valves, backflow preventors, expansion tanks & booster pumps. Markets include hose, valve & coupling industry.
Brand Names: Anvil, Durabla, Hammond Valve, Hayward, Plast-O-Matic, Spears
www.servicepipe.com/products.php

Velan Inc. - SAINT-LAURENT, QC
Manufacturer, Custom Manufacturer
Lean manufacturing & Six Sigma capable & ISO 9001, ISO 9001:2000, ISO 9000:2001 & ISO 9001:2008 certified. Worldwide manufacturer of standard & custom check valves. Types of check valves include swing check valves, cryogenic swing check valves, flanged swing check valves, socket weld/threaded check valves, bolted cover piston check valves, pressure seal piston check valves, pressure seal swing check valves, pressure seal tilting disc check valves, pressure seal Y-pattern piston check valves, dual-plate check valves & Y-pattern piston check valves.
Brand Names: Proquip, Rama, Velan
www.velan.com/velan/en/products/#cat16

Wager, Robert H. Co., Inc - Rural Hall, NC
Distributor, Manufacturer
Manufacturer of check valves. Types of valves include vertical vent check valves, inverted vent check valves, semicircular valves, horizontal vent valves, in-line valves, air check valves, sewer vent check valves, mushroom check valves & sewer vertical vent check valves.
www.wagerusa.com/index.html