Clippard Instrument Laboratory, Inc.    Cincinnati, OH 45239
Apr 04, 2012 Featuring poppet design, JPC Series works as standard check valve, but can be opened with air pilot signal to permit free flow in normally checked position. Units are constructed of ENP brass, anodized aluminum, and stainless steel with Buna-N seals. With temperature range of 32-230°F, valves operate with air, water, or oil as medium. Auxiliary port facilitates plumbing, while side port rotates for ease of positioning.

Flomatic Valves Div., The Danfoss Group    Glens Falls, NY 12801
Mar 15, 2012 Designed for use with variable-frequency drive (VFD) control submersible pumps, Model 80DI VFD check valve minimizes flow losses and hydraulic shocks in pumping system. Standard epoxy coated (NSF® approved powder) ductile iron body supports deep set pumps, and stainless steel guided poppet system ensures valve automatically adjusts noiselessly between flow rates. Valve seat radius allows self-cleaning, one point swiping action by radius-edged, custom molded, rubber seal disc.

Plymovent Corp    Cranbury, NJ 08512
Nov 16, 2011 Designed to occupy minimal floor space, in-line SparkShield design ensures almost 100% efficiency in removal of sparks and other potential hazards that may cause fire while also extending lifespan of filter cartridges. Inspection hatches can be placed around unit, making it possible to look inside ductwork to check whether cleaning is necessary. Duct clamps facilitate installation, dismantling, servicing, and maintenance of divisible body.

Asahi/America, Inc.    Malden, MA 02148.
Nov 07, 2011 Installed on discharge side of pumps, 10 and 12 in. PVC wafer check valves prevent back-flow flooding. Body, disc, and stopper assembly machined from solid PVC plate stock, which is chemical resistant and conforms to ASTM D1784 Cell Classification 12454A. Products operate at up to 90 psi and 120°F and conform to ISO 5752 face-to-face dimensions. Lack of bolt pattern lets one valve style accommodate ANSI/DIN/JIS mating flange dimensions.

Spirax Sarco, Inc.    Blythewood, SC 29016
Aug 18, 2011 Designed to meet EN and ASME standards, Lift Check Valves include Models LCV3, LCV4, LCV6, and LCV7 in cast iron, carbon steel, stainless steel, and SG iron, respectively. Valves utilize replaceable clamp-in-place seat that enables in-line maintenance. Fabricated for horizontal pipeline installations, valves prevent reverse flow in pipelines carrying most types of liquids, steam, and gas. Units also prevent pressure surges associated with hydraulic forces such as water hammer.

Bionomic Industries Inc.    Mahwah, NJ 07430
Jun 16, 2011 Replacing manometer liquid seal legs on scrubber and vessel sumps, ScrubSeal(TM) Valves act as check valves to allow drainage of scrubber sump liquid through overflow line while maintaining required vessel vacuum during normal non-flow conditions. Products can be installed in vertical or horizontal pipes from ¾-4 in. to meet overflow rates from fractional to 500+ gpm. Valve body choices include corrosion-resistant PP or CPVC, depending upon size, with EPDM internal elements.

ITT Corporation    White Plains, NY 10604
Jun 07, 2011 Available in 1, 1¼, 1½, and 2 in. sizes, 3DV Triple Duty® Valve incorporates calibrated balance valve, shut-off valve, and spring loaded check valve that prevents gravity circulation and backflow. Choice of MNPT threaded or rotatable flange inlet connection allows close mounting of valve to pump discharge or downstream from pump. Constructed of materials that resist harsh operating pressures and high temperatures, valve meets ASHRAE 90.1 requirements for energy efficient operation.

Lee Products Ltd    Buckinghamshire SL9 9QE  United Kingdom
May 03, 2011 Available in 5 sizes from .125-.500 in. diameter with MP35N poppet and seat, High-Pressure Check Valves are constructed from corrosion-resistant materials that are compliant with NACE MR0175/ISO 15156 standards. Units are designed for checked direction pressures up to 15,000 psid, and are available in free flow forward and free flow reverse directions, with cracking pressures of 5±3 and 1+0.5 psid. Free flow Lohm rates range from 400 down to 15 Lohms.

Tideflex Technologies    Carnegie, PA 15106
Feb 24, 2011 Suited for use in outfalls, stormwater, and CSO/SSO applications, CheckMate® valve has all-rubber unibody design that eliminates backflow from oceans, rivers, and interceptors. Elastomer fabric-reinforced design lends to maintenance-free performance, while unibody construction eliminates catch points. Available in 4-72 in. sizes, valve is built to suit site and flow needs and can open to near full pipe diameter to maximize flow capacity of outfall.

Spirax Sarco, Inc.    Blythewood, SC 29016
Feb 09, 2011 Model CVS10 Sanitary Check Valve protects equipment from pressure surges associated with hydraulic forces such as waterhammer. Stainless steel valve includes full traceability of wetted materials throughout valve as well as .507 psi opening pressure. Available in ½-2 in. sizes with sanitary-clamp connections, it is manufactured to ASME BPE standards and is offered with metal seat for clean and pure steam/condensate applications.

Red Valve Company Inc    Carnegie PA 15106
May 04, 2010 Debris, corrosion, and fail resistant Tideflex® CheckMate(TM) inline check valve is suited for backflow prevention and mitigation of odors. Custom-engineered designed unit eliminates backflow from oceans, rivers, and interceptors, and targets outfalls, stormwater, CSO, and SSO applications.

Tideflex Technologies    Carnegie, PA 15106
Oct 29, 2009 Constructed entirely of rubber, with enhanced sealing to improve headloss across valve, TF-1 Curved Bill Tideflex® Check Valve is immune to rust, corrosion, and weathering. It can also handle long-term water weight and maintain structural integrity. Vertical angle of spine enables valve to withstand cantilever effect when water is flowing through it.

Groth Corp.    Stafford, TX 77477
May 22, 2009 Designed to protect liquid storage tanks containing vapors with MESG equal to or greater than 0.025 in., Groth Model 7758A flame/detonation arrester comes in Carbon Steel, Stainless Steel or Hastelloy® C. Product can also be used to protect against unstable detonations, deflagrations, short time burn and endurance burn (with temperature sensor) for NEC group C and D vapors (IEC explosion groups IIB3, IIB2, IIB1 and IIA).

Conval, Inc.    Somers, CT 06071
Dec 19, 2008 Clampseal® Stop, Check, and Stop Check Valves are offered with ASME pressure classes up to 4500 and butt weld or socket weld connections. Standard materials include A105, F22, F91, F316, F347, Inconel and Monel, with custom materials and special service variations, such as fire-safe and cryogenic, available. Other features include cartridge-replaceable packing chamber, graphite packing system with single one-piece gland, and pressure seal bonnet.

Dwyer Instruments, Inc.    Michigan City, IN 46361
Dec 10, 2008 Incorporating soft seat for bubble-tight shutoff, Series BICV is spring-loaded for rapid reseating at high and low temperatures. Smooth flow profile minimizes head loss and accumulation of debris. Featuring 0.5 psi cracking pressure, valves come in 11 different connection sizes ranging from ¼-4 in. and are suited for use with variety of service mediums including compatible oils, gases, fuels, and hydrocarbons.

Apollo Valves    Matthews, NC 28105
Nov 13, 2008 Suited for irrigation system applications, PVB 4A Series pressure vacuum breakers are built around self-contained captured spring check module. They incorporate standard freeze protection feature and stainless steel shutoff handles. With corrosion resistant all-bronze body, units offer maximum working pressure of 175 psi, and operating temperature range of 33-140°F.

Apollo Valves    Matthews, NC 28105
Sep 30, 2008 With modular check valve design, RP 4A Series reduced pressure principle backflow preventers can fit in tight spaces and under small enclosures. They have 4 top-mounted test cocks and 2 removable captured spring check modules which are independently accessible from top and can be replaced or disassembled for ease of maintenance. Featuring corrosion resistant all-bronze body, units offer maximum working pressure of 175 psi and operating temperature range of 33-140°F.

Conbraco Industries, Inc.    Matthews, NC 28106 0247
Sep 04, 2008 Constructed with stainless steel handles and all-bronze body, DC 4A Series is corrosion-resistant for extended service life and employs captured spring check modules that allows for compact design that fits in standard meter boxes or under small enclosures. Valves include 2 self-contained check modules, independently accessible from top and removable for maintenance, as well as top-mounted test cocks that promote serviceability. Max working pressure of 175 psi.

Conbraco Industries, Inc.    Matthews, NC 28106 0247
Aug 07, 2008 Including double check valves (DC), reduced pressure zone valves (RP), and pressure vacuum breakers (PVBs), Apollo® 4A Series backflow preventers feature interchangeable check valve modules, simplifying repair operations. With corrosion resistant all-bronze body and top-mounted test cocks, compact units are available in sizes of ¾ to 2 in., and offer maximum working pressure of 175 psi and operating temperature range of 33-140°F.

Lee Company, The    Westbrook, CT 06498 0424
Aug 05, 2008 Power Generation Chek® Valves are field serviceable, allowing users to disassemble and service valves using rebuild kit. Featuring low leakage and high flow, units are suited for use in purge air, water injection, and liquid fuel applications. Available with or without removable, washable Hi-Bar® Safety Screen, valves can be designed according to specific customer requirements.