Underwater Check Valves

Description: VALVE, CHECK, INHALATION AND EXHALATION FOR UNDERWATER BREATHING APPARATUS (SCUBA)

Description: DOUBLE CHECK BACKFLOW PERVENTER, 3/4 INCH SIZE, CAST BRONZE BODY, 175 PSI MAX WATER, 180 F MAX TEMP, 350 PSI MAX HYDROSTATIC TEST PRESSURE. FREE 2 YEAR RADWELL WARRANTY

• Back Flow Preventer Assembly: Yes
• Media Description: Water

Description: The Waterflex Check Valve is specifically designed for potable water and clean water applications with low suspended solids. The valves are NSF61 Certified for potable water applications. The Waterflex comprises a rod-guided ply-reinforced membrane and perforated disc. The

• Media Description: Water

Description: WATTS WATER TECHNOLOGIES , 0887180 , CHECK RUBBER PARTS , RK 009 RC2 3/4 INCH-1 INCH , O-RING REPAIR KIT, KIT CONSISTS OF: DISC, COVER O-RING AND SEAT O-RING. FREE 2 YEAR RADWELL WARRANTY

• Media Description: Water

Description: Suitable for air quality to ISO 8573.1 Class 4: dirt, water and oil High flow - up to 8.6 Cv Working pressure up to 188 psi / 13 bar working Allows free flow in one direction and provides positive checked flow in the reverse direction Wide selection of inlet and outlet connections available

• Flow (Cv): 8.6
• Media Description: Air, Water
• Pressure Rating: 188 psi

Description: 1-7 psi cracking pressure, radiation-stable Polycarbonate

• Agency / Standard: ISO
• Connection: Threaded, Tube Fitting
• Material of Construction: Other
• Media Description: Water, Potable Water

Description: 2-5 psi cracking pressure, radiation-stable Polycarbonate

• Agency / Standard: ISO
• Connection: Threaded, Tube Fitting
• Material of Construction: Other
• Media Description: Water, Potable Water

Description: Cost effective, space saving solution for the use of single or multiple valves. A wide variety of connector, electrical and mounting options are available to accommodate numerous applications. Convenient Line & 90° Connectors (both with LED) provide quick electrical connection when used in

• Connection: Threaded, Tube Fitting
• Flow (Cv): 0.4100
• Material of Construction: Brass / Bronze, Exotic Metal, Stainless Steel
• Media Description: Air, Compressed Air, Water

Description: adjustment of the amount of controlled flow passing through the valve. Flow enters port 1, travels through an orifice sized by the tapered stem and out port 2. The flow control features a by-pass check which allows rapid free flow out port 1. Pneumadyne offers a variety of

• Connection: Threaded
• Flow (Cv): 0.0900
• Material of Construction: Brass / Bronze, Exotic Metal, Stainless Steel
• Media Description: Air, Compressed Air, Water

Description: Series FPP (Plain) and FFF (Flanged) Check Valves are designed to permit free flow in one direction and to prevent return flow in the opposite direction. The unique design of the Ames "Spring-Swing" check valve enables it to function with an extremely high degree of

• Material of Construction: Steel
• Media Description: Water, Hot Water, Cold Water, Potable Water
• Media Temperature: 33 to 110 F
• Pressure Rating: 150 psi

Description: Product Description AMERICAN has incorporated significant and innovative design changes to help prolong service life for swing check valves in water and sewage service. Traditionally, swing check valves have been manufactured with bronze clapper arm shafts. Under severe

• Agency / Standard: ANSI, AWWA
• Material of Construction: Ductile Iron
• Media Description: Water
• Valve Size: 3 to 16 inch

Description: Series LF2000B Double Check Valve Assemblies prevent the backflow of contaminated water into the potable water supply. It consists of a Lead Free* cast silicon copper alloy body construction that is easy to maintain and service. Series LF2000B is ideal at referenced cross-connections

• Back Flow Preventer Assembly: Yes
• Material of Construction: Copper
• Media Description: Water, Hot Water, Cold Water, Potable Water
• Media Temperature: 33 to 140 F

Description: Series LF4000B Reduced Pressure Zone Assemblies are designed to protect potable water supplies in accordance with national plumbing codes and water authority requirements. This series can be used in a variety of installa­tions, including the prevention of health hazard cross connections in piping

• Back Flow Preventer Assembly: Yes
• Material of Construction: Copper
• Media Description: Water, Hot Water, Cold Water, Potable Water
• Media Temperature: 33 to 180 F

Description: The model WSSCV is an all stainless steel in-line check valve for steam, gas, or liquid service. It provides tight shut-off, minimizes water hammer and also stops recycling of pumps by preventing back flow of liquid. Used in the petrochemical, pulp and paper, textile and the food &

• Connection: Threaded, Socket Weld / Solder
• Flow (Cv): 39
• Material of Construction: Stainless Steel
• Media Description: Water, Gas, Steam, Other

Description: INLINE, ANGLE AND TOP ENTRY IRON YOKE CHECK VALVE Angle dual check valve Inlet: Lock nut Outlet: MUELLER 110™ Conductive Compression Connection for CTS O.D.* tubing.

• Agency / Standard: ANSI
• Connection: Compression Fitting
• Material of Construction: Cast Iron
• Media Description: Water, Potable Water

Description: Product Description AMERICAN has incorporated significant and innovative design changes to help prolong service life for swing check valves in water and sewage service. Traditionally, swing check valves have been manufactured with bronze clapper arm shafts. Under severe

• Agency / Standard: ANSI, AWWA
• Material of Construction: Ductile Iron
• Media Description: Water
• Valve Size: 3 to 16 inch

Description: The Zurn Wilkins 975XL Reduced Pressure Principle Backflow Preventer provides high hazard protection for non-potable water applications. The wye pattern, bronze body provides separate access to each check valve and the relief valve for servicing. To view all options, see the

• Back Flow Preventer Assembly: Yes
• Media Description: Water

Description: MUELLER CO. offers a full range of service line dual check valves. These valves are available in angle or in line styles and can be used on copper meter yokes, cast iron meter yokes, cast iron meter boxes or in custom meter installations. Dual check valves are used

• Media Description: Water, Potable Water
• Pressure Rating: 175 psi
• Valve Size: 1.5 to 2 inch
• Valve Type: Double Check Valves

Description: Program Angle shut-off valves Check valves Control valves with electric, pneumatic and hydraulic actuators Specially developed High-pressure valve (pulsation valve) PN 3200 with hydraulic actuator and electronic controller for use in low-density polyethylene

• Media Description: Air, Water, Gas

Description: The Zurn Wilkins 975XL2 Reduced Pressure Principle Backflow Preventer provides high hazard protection for potable water applications. The wye pattern, bronze body provides separate access to each check valve and the relief valve for servicing. To view all options, see the

• Back Flow Preventer Assembly: Yes
• Media Description: Water
• Valve Size: 2 inch

Description: The Series 3000BM1 Double Check Detector Assembly (DCDA) is specifically designed to protect against possible backpressure and backsiphonage conditions for non-health hazard (i.e., pollutant) application in accordance with Local Governing Water Utility Code. This device assembly is primarily

• Back Flow Preventer Assembly: Yes
• Material of Construction: Brass / Bronze
• Media Description: Water, Hot Water, Cold Water, Potable Water
• Media Temperature: 33 to 140 F

Description: The ZW5004CAP is a 2-1/2" Pressure-Tru® ZW5004 Pressure Reducing Floor Control Valve with angle body, FNPT connections, with capped bonnet, no handwheel assembly and is listed as a floor control valve, an indicating valve, and a check valve in automatic sprinkler

• Media Description: Water
• Valve Size: 2.5 inch

Description: Standard version The VPN valve is a 3A certified non-return valve which is used when backflow of the product in pipelines must be avoided. The valve which only consists of a few parts, is a cost-effective alternative to the DELTA RUF valve.

• Media Description: Water, Powder / Solids

Description: The valve opens as soon as the pressure under the valve seat exceeds the counter pressure. When the pressure is balanced, the valve closes by spring action, which means that in case of a pressure increase, the valve closes on the spring side. Field of application All

• Media Description: Water, Powder / Solids
• Pressure Rating: 145 psi
• Valve Size: 1 to 4 inch

Description: operated valves • For vertical or horizontal installation; gravity operated horizontal installation only • Epoxy coated interior & exterior for corrosion resistance. • Choice of bronze or rubber faced disc • O-ring sealed stuffing box • 2" thru 12" sizes---200 psig (1400 kPa/14 barg) maximum

• Agency / Standard: ANSI, AWWA, NSF
• Connection: Bolt Flange
• Material of Construction: Cast Iron
• Media Description: Water, Potable Water

Description: Up to 3000psig (206bar) Up to 190? (375?) ss316, Brass DK-LOK OD1/8 - 1 inch Pipe thread 1/8 - 1 inch

• Agency / Standard: ASME
• Connection: Threaded
• Flow (Cv): 1.7
• Material of Construction: Brass / Bronze, PTFE - Teflon®, Rubber, Stainless Steel, Other

Description: Mounts horizontally or vertical, excellent solids handling, tight shut-off. Cast body and molded lining.

• Connection: Bolt Flange
• Material of Construction: Cast Iron
• Media Description: Water
• Media Temperature: -20 to 450 F

Description: The Zurn Wilkins 975XL2 Reduced Pressure Principle Backflow Preventer provides high hazard protection for potable water applications. The wye pattern, bronze body provides separate access to each check valve and the relief valve for servicing. To view all options, see the

• Back Flow Preventer Assembly: Yes
• Media Description: Water
• Valve Size: 1 inch

Description: Up to 6000 psig (413bar) Up to 204? (400?) ss316 O-ring seal blow-out proof design DK-LOK OD 1/8 - OD1 inch Pipe thread 1/8 - 1"

• Agency / Standard: ASME
• Connection: Compression Fitting
• Flow (Cv): 4.7
• Material of Construction: Brass / Bronze, PTFE - Teflon®, Rubber, Stainless Steel, Other

Description: Preferred Source for Water Distribution Products for more than 150 years... Since 1857, the Mueller name has been known for innovative Water Distribution Products of superior quality. We are North America's largest and only full-line supplier of potable Water Distribution Products. Our products are

• Connection: Threaded
• Media Description: Water, Potable Water
• Valve Size: 0.6250 to 2 inch
• Valve Type: Double Check Valves

Description: Black acetal copolymer with food grade nitrile rubber o-rings

• Connection: Tube Fitting
• Material of Construction: Acetal
• Media Description: Water, Potable Water
• Valve Size: 0.2362 to 0.4724 inch

Description: Features and Options: Guided Ball for troble free performance. Large open area for flow, results in lower pressure drops. Variety of Corrosion resistantplastic linings for excellent protection in wide range of service conditions. Lined ball with metal insert can be provided on request instead

• Connection: Bolt Flange
• Material of Construction: Ductile Iron, Other
• Media Description: Water
• Valve Size: 2 inch

Description: Swing and ball check valves. The ductile iron body, made in a modern design with soft sealing elements in an advanced rubber quality from AVK’s own rubber factory, will ensure an efficient shut-off whenever needed. Most of AVK’s products in the fire protection range hold

• Agency / Standard: DIN
• Media Description: Water, Cold Water, Potable Water
• Media Temperature: 158 F
• Valve Size: 2 to 3 inch

Description: Cast Iron Check Valves for use in commercial and industrial applications. Typical services include: hot and cold water, HVAC, steam, gas and other general utility services. 3% Nickel services the pulp and paper industry. 125 psi/8.6 bar saturated steam to 353°F/178°C, 200

• Agency / Standard: MSS
• Connection: Threaded, Bolt Flange, Socket Weld / Solder
• Material of Construction: Cast Iron
• Media Description: Water, Hot Water, Cold Water, Steam

Description: Up to 3000psig (206bar) Up to 190? (375?) ss316, Brass O-ring seal blow-out proof design Pipe thread 1/4 - 1/2 inch

• Agency / Standard: ASME
• Connection: Threaded
• Flow (Cv): 1.2
• Material of Construction: Brass / Bronze, PTFE - Teflon®, Rubber, Stainless Steel, Other

Description: WCV1, WCV2 and WCV3 wafer check valves are designed to be sandwiched between flanges.They are specifically designed for use on applications where there is a high proportion of particles in the liquid e.g. sewage, paper mills, sludges etc. The standard seating ring is EPDM.

• Agency / Standard: ISO
• Connection: Clamp Flange
• Material of Construction: Stainless Steel
• Media Description: Air, Water, Steam

Description: Features & Benefits Check valves permit flow in one direction only and close automatically if flow reverses. Entirely automatic in action, depending upon pressure and velocity of flow within the line to perform their functions of opening and closing

• Material of Construction: Cast Iron
• Media Description: Water
• Valve Type: Swing Check Valves

Description: The DCV3 and DCV3LT disc check valves are of the wafer pattern designed to be sandwiched between flanges. They are suitable for use on a wide range of fluids for applications in process lines, hot water systems, steam and condensate systems etc. Face-to-face dimensions conform to EN

• Connection: Clamp Flange
• Material of Construction: Stainless Steel
• Media Description: Air, Water, Gas, Steam
• Media Temperature: -76 to 752 F

Description: Features & Benefits Lift Check Valves should only be used in horizontal pipe runs The Crane D116 check valve if of the lift check variety

• Material of Construction: Brass / Bronze
• Media Description: Water
• Valve Type: Lift Check Valves

Description: The LCV3, LCV4, LCV6 and LCV7 lift check valves are designed in accordance with EN 12516 and ASME B16.34 to prevent reverse flow in the installations. The design of these valves allows them to be easily serviced without removing the valve from the pipeline.

• Material of Construction: Steel
• Media Description: Water
• Media Temperature: 14 to 752 F
• Pressure Rating: 741 psi

Description: Features & Benefits Check valves permit flow in one direction only and close automatically if flow reverses, depending upon pressure and velocity of flow to perform the functions of the opening and closing EPDM rubber seat to facilitate quiet operation and

• Material of Construction: Ductile Iron
• Media Description: Water

Description: Features & Benefits Check valves permit flow in one direction only and close automatically if flow reverses. Entirely automatic in action, depending upon pressure and velocity of flow within the line to perform their functions of opening and closing The Crane D142 bronze check

• Material of Construction: Brass / Bronze
• Media Description: Water
• Valve Type: Swing Check Valves

Description: The DCV10 (cast stainless steel) and DCV10C (zinc plated cast carbon steel) are wafer pattern disc check valves that have been designed to be sandwiched between flanges for use with pumps and general cycling applications. They are suitable for use on a wide range of fluids for

• Connection: Clamp Flange
• Material of Construction: Steel
• Media Description: Air, Water, Gas, Steam
• Media Temperature: 14 to 752 F

Description: Check Valve, Female Luer Lock Inlet, Male Luer Lock Outlet with Cap - 65140

• Material of Construction: Polyethylene (PE), Other
• Media Description: Air, Water
• Pressure Rating: 0.1740 psi

Description: Qosina offers an extensive line of Check Valves, available in a variety of styles that are in stock and ready for immediate delivery. Qosina part #80057 is in-line and features a 0.130 inch OD tubing port on each end and has a low, 0.112 psi cracking pressure which determines when the

• Material of Construction: Other
• Media Description: Air, Water
• Pressure Rating: 0.1120 psi
• Valve Type: Duckbill Valves

Description: design. Ball detents, with approximately 15 pounds breakaway force, retain the valve selector handle in the selected position (WATER, PURGE or VENT). An included check valve should be installed in the return line downstream from the Return manifold to prevent backflow to the

• Material of Construction: Aluminum
• Media Description: Water, Cold Water
• Pressure Rating: 150 psi
• Valve Size: 2 inch

Description: Lead Free* Brass Maxi-Flo Check Valves feature a Lead Free* cast copper silicon alloy body with NPT female threaded connections. These silent check valves have a low pressure drop and can be installed in a horizontal or vertical position. Maximum Pressure: 400psi (27.6

• Material of Construction: Copper
• Media Description: Water
• Valve Size: 0.2500 to 2 inch

Description: Qosina offers an extensive line of Check Valves, available in a variety of styles that are in stock and ready for immediate delivery. Qosina part #80084 features a female luer lock inlet and male luer lock outlet. This in-line valve has a low, 0.112 psi cracking pressure which

• Material of Construction: Other
• Media Description: Air, Water
• Pressure Rating: 0.1120 psi
• Valve Type: Duckbill Valves