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Supplier: Beswick Engineering Co., Inc.
Description: The check valve permits free flow in one direction and no (checked) flow in the opposite direction. This valve is specified in many applications because of its very low cracking pressure (typically less than 0.5 psig), its excellent repeatability, and leak-tight operation. The
- Back Flow Preventer Assembly: Yes
- Connection: Threaded, Tube Fitting
- Flow (Cv): 0.0 to 0.0480
- Material of Construction: Brass / Bronze, Stainless Steel, Other
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Supplier: Check-All Valve Mfg. Co.
Description: The Check-All Flanged & Drilled check valve is a one-piece cast body valve with ANSI/ASME B16.5 Class 150 flanged ends. The HVFD series valve is used when higher flow rates and lower pressure drops are required. The valve is available in sizes 1 through 10
- Agency / Standard: ANSI, ASME, MSS, ISO
- Back Flow Preventer Assembly: Yes
- Connection: Bolt Flange
- Flow (Cv): 39.2
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Supplier: Check-All Valve Mfg. Co.
Description: The Lined Pipe Insert valve is designed to mate between two flanges on most lined pipe systems. It provides the simplest most economical way to install a check valve in a lined piping system. No gaskets are required, just spread the flanges, center the valve and bolt the
- Agency / Standard: ANSI, ASME, MSS, ISO
- Back Flow Preventer Assembly: Yes
- Connection: Bolt Flange
- Flow (Cv): 32 to 45.8
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Supplier: Check-All Valve Mfg. Co.
Description: The 3-A Sanitary Check Valve is an all 316/316L stainless steel check valve with a standard 32 Ra or better finish, (finer available) for use in new or existing sanitary systems. The 3SC design seals on the ID of sanitary ferrules with 3-A specified materials (standard is
- Agency / Standard: ISO
- Back Flow Preventer Assembly: Yes
- Connection: Clamp Flange
- Flow (Cv): 120
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Supplier: Check-All Valve Mfg. Co.
Description: The Tubing Check Valve-Flared is a three piece constructed valve with 37º flared ends which conform to J. I. C. and S. A. E. Hydraulic Standards. These valves are designed for maximum flow with minimal pressure drop. Available Materials: 316 Stainless Steel (SS) Brass
- Agency / Standard: ISO
- Back Flow Preventer Assembly: Yes
- Connection: Threaded, Tube Fitting
- Flow (Cv): 29
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Supplier: DFT Inc.
Description: The DFT® Model PDC® Silent Check Valve is specially designed for use on the discharge side of reciprocating air or gas compressors. It includes a pulse damping chamber to maintain the disc in the open position during the momentary reductions in flow associated with each cycle of a
- Agency / Standard: ANSI, API
- Connection: Bolt Flange
- Flow (Cv): 55 to 2300
- Material of Construction: Stainless Steel, Steel
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Supplier: DFT Inc.
Description: The DFT® Model DLC® is a corrosion resistant, dependable, versatile and economical spring assisted, in-line check valve for a wide range of applications. Whether the fluid is liquid, gas or steam, the DLC® provides tight shut-off and protects other equipment in the system from water
- Agency / Standard: ANSI, API
- Connection: Bolt Flange
- Flow (Cv): 7 to 180
- Material of Construction: Exotic Metal, Stainless Steel
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Supplier: DFT Inc.
Description: The DFT® Model SCV® is a corrosion resistant, dependable, versatile and economical spring-assisted, in-line check valve for a wide range of applications. Whether the fluid is liquid, gas or steam, the SCV® provides tight shut-off and protects other equipment in the system from water
- Agency / Standard: API
- Connection: Threaded, Butt Weld, Socket Weld / Solder
- Flow (Cv): 6 to 180
- Material of Construction: Stainless Steel
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Supplier: DFT Inc.
Description: The DSV® is an in-line spring-assisted check valve designed to prevent flow reversal in industries with strict cleanliness codes. To accommodate various piping arrangements, the DSV® is available as a "Vertical" or "Horizontal" valve. The Horizontal valve is for
- Agency / Standard: ANSI
- Connection: Clamp Flange
- Flow (Cv): 2.4 to 109
- Material of Construction: Stainless Steel
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Supplier: Beswick Engineering Co., Inc.
Description: valve insensitive to vibration preventing inadvertent changes to the setting. The flow control valve is rated to 200 psi maximum pressure and has a poppet check valve to permit free return flow.
- Connection: Threaded
- Flow (Cv): 0.0 to 0.0680
- Material of Construction: Brass / Bronze, Stainless Steel, Other
- Media Description: Air, Compressed Air, Water, Hot Water, Cold Water, Potable Water, Wastewater, Gas, Gasoline / Diesel Fuel, High Purity Gas, LP - Gas, Natural Gas, Hydraulic Fluid, Other
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Supplier: Beswick Engineering Co., Inc.
Description: The fixed orifice flow control valve is designed with a factory pre-set orifice. Rotation of the knurled sleeve will not change the orifice setting. Ideal for applications where improper adjustment of a flow setting could damage the machine or process. Fluid is metered in one direction, a
- Connection: Threaded
- Flow (Cv): 3.50E-4 to 0.0190
- Material of Construction: Brass / Bronze, Stainless Steel, Other
- Media Description: Air, Compressed Air, Hot Water, Cold Water, Potable Water, Wastewater, Gas, Gasoline / Diesel Fuel, High Purity Gas, LP - Gas, Natural Gas, Hydraulic Fluid, Steam, Other
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Supplier: Beswick Engineering Co., Inc.
Description: The Beswick CKVA is a poppet style check valve with adjustable cracking pressure. The cracking pressure can be adjusted from 1 psig to 40 psig. This valve requires back pressure to be applied before the cracking pressure resets to your original set point.
- Connection: Threaded
- Material of Construction: Brass / Bronze, Stainless Steel, Other
- Media Description: Air, Compressed Air, Water, Hot Water, Cold Water, Potable Water, Wastewater, Gas, Gasoline / Diesel Fuel, High Purity Gas, LP - Gas, Natural Gas, Hydraulic Fluid, Steam, Other
- Pressure Rating: 0.0 to 250 psi
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Supplier: Mueller Steam Specialty
Description: Designed for liquids and gases where flow reversal can cause surge and water hammer. Used extensively in pump suction and discharge applications.
- Connection: Bolt Flange
- Material of Construction: Other
- Media Description: Air, Water, Hot Water, Cold Water, Potable Water, Salt Water, Wastewater, Gas, Gasoline / Diesel Fuel, High Purity Gas, LP - Gas, Natural Gas, Sour Gas, Specialty / Corrosive Gases, Hydraulic Fluid
- Media Temperature: Up to 100 F
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Supplier: Mueller Steam Specialty
Description: Designed for liquids and gases where flow reversal can cause surge and water hammer. Used extensively in pump suction and discharge applications.
- Connection: Bolt Flange
- Material of Construction: Brass / Bronze
- Media Description: Air, Water, Hot Water, Cold Water, Potable Water, Salt Water, Wastewater, Gas, Gasoline / Diesel Fuel, High Purity Gas, LP - Gas, Natural Gas, Sour Gas, Specialty / Corrosive Gases, Hydraulic Fluid
- Media Temperature: Up to 150 F
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Supplier: Mueller Steam Specialty
Description: Designed for liquids and gases where flow reversal can cause surge and water hammer. Elastomer seats provide bubble-tight shutoff.
- Agency / Standard: ANSI, API
- Connection: Bolt Flange
- Material of Construction: Cast Iron
- Media Description: Air, Compressed Air, Water, Hot Water, Cold Water, Potable Water, Salt Water, Wastewater, Gas, Gasoline / Diesel Fuel, High Purity Gas, LP - Gas, Natural Gas, Sour Gas, Specialty / Corrosive Gases, Hydraulic Fluid
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Supplier: Mueller Steam Specialty
Description: Designed for liquids and gases where flow reversal can cause surge and water hammer. Elastomer seats provide bubble-tight shutoff.
- Agency / Standard: ANSI, API
- Connection: Bolt Flange
- Material of Construction: Brass / Bronze, Ductile Iron, Stainless Steel, Other
- Media Description: Air, Water, Hot Water, Cold Water, Potable Water, Salt Water, Wastewater, Gas, Gasoline / Diesel Fuel, High Purity Gas, LP - Gas, Natural Gas, Sour Gas, Specialty / Corrosive Gases, Hydraulic Fluid
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Supplier: Xiamen Landee Industries Co., Ltd.
Description: Swing Check Valve with Cast Iron, Ductile Iron, Aluminum Bronze, and Stainless Steel Materials Model Number:LD 016-WCK4 Key Specifications/Speci al Features: Working pressure: PN10, PN16, 125LBS Body materials: cast iron, ductile iron, aluminum
- Agency / Standard: ANSI, API, DIN
- Connection: Bolt Flange, Butt Weld
- Material of Construction: Aluminum, Brass / Bronze, Cast Iron, Ductile Iron, Stainless Steel, Steel
- Media Description: Water, Hot Water, Cold Water, Potable Water, Salt Water, Wastewater, Gas, Gasoline / Diesel Fuel, LP - Gas, Natural Gas, Sour Gas
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Supplier: Xiamen Landee Industries Co., Ltd.
Description: API, ANSI, BS, DIN-Standard Wafer Check Valves. Model Number: LD 016-WCK Key Specifications/Speci al Features: Manufacturing standards: API, ANSI, BS, DIN Sizes range: from 1" diameter to 24" diameter (DN25mm - DN600mm) Pressure: from ANSI
- Agency / Standard: ANSI, API, DIN
- Connection: Bolt Flange, Butt Weld
- Material of Construction: Stainless Steel, Steel, Other
- Media Description: Water, Hot Water, Cold Water, Potable Water, Salt Water, Wastewater, Gas, Gasoline / Diesel Fuel, LP - Gas, Natural Gas, Sour Gas
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Supplier: Xiamen Landee Industries Co., Ltd.
Description: Key Specifications/Speci al Features: Working pressure: PN10; PN16 Body materials: cast iron, ductile iron, aluminum bronze, stainless steel and carbon steel Applicable temperature: from -40 to +230 degrees C Size range: from 2 to 40 inches diameter (DN25 to DN1000mm) Face to face according to
- Agency / Standard: ANSI, API, DIN
- Connection: Bolt Flange, Butt Weld
- Material of Construction: Aluminum, Brass / Bronze, Cast Iron, Ductile Iron, Stainless Steel, Steel, Other
- Media Description: Water, Hot Water, Cold Water, Potable Water, Salt Water, Wastewater, Gas, Gasoline / Diesel Fuel, LP - Gas, Natural Gas, Sour Gas
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Supplier: Xiamen Landee Industries Co., Ltd.
Description: Swing Check Valves, Pressure from ANSI Class 150 to 2500 (PN1.6-42MPa). Model Number:LD-003-CK2 Key Specifications/Speci al Features: Pressure: from ANSI class 150 to 2500 (PN1.6-42MPa) Manufacturing standards: API, ANSI, BS, DIN, JIS Size
- Agency / Standard: ANSI, API, DIN
- Connection: Bolt Flange, Butt Weld
- Material of Construction: Aluminum, Brass / Bronze, Cast Iron, Ductile Iron, Stainless Steel, Steel, Other
- Media Description: Water, Hot Water, Cold Water, Potable Water, Salt Water, Wastewater, Gas, Gasoline / Diesel Fuel, LP - Gas, Natural Gas, Sour Gas
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Supplier: AVK International A/S
Description: Swing Check Valves. Flanged Non Return Valve to EN12266. Cast Iron or Ductile Iron with or without Stainless Steel internals. Sizes range from DN150 to DN300.
- Agency / Standard: DIN
- Connection: Bolt Flange
- Material of Construction: Cast Iron, Ductile Iron
- Media Description: Gas, LP - Gas, Natural Gas
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Supplier: NIBCO INC.
Description: Bronze Check Valves for use in commercial and industrial applications. Typical services include; hot and cold water, HVAC, steam, compressed air, gas and other general utility services. 125 psi/8.6 bar saturated steam to 353°F/178°C, 200 psi/13.8 bar non-shock cold working
- Agency / Standard: MSS, NSF
- Connection: Threaded, Socket Weld / Solder
- Material of Construction: Brass / Bronze
- Media Description: Water, Hot Water, Cold Water, Gas, LP - Gas, Natural Gas, Steam
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Supplier: Flomatic Valves
Description: DUAL CHECK with ATMOSPHERIC VENT - Continuous pressure backflow preventer with an intermediate atmospheric vent, with double union ends. Complies with ASSE 1012, not for potable water. For reference use only. Please check Flomatic's website for the latest valve product
- Back Flow Preventer Assembly: Yes
- Media Temperature: 210 F
- Pressure Rating: 175 psi
- Valve Size: 0.7500 inch
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Supplier: FEBCO
Description: MasterSeries® backflow prevention assemblies aren't just Lead Free. We also redesigned the check and relief valves for superior performance.
- Agency / Standard: NSF
- Back Flow Preventer Assembly: Yes
- Connection: Bolt Flange
- Material of Construction: Ductile Iron
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Supplier: Radwell International
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
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Supplier: Ames Fire & Waterworks
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
- Back Flow Preventer Assembly: Yes
- Material of Construction: Copper
- Media Description: Water, Hot Water, Cold Water, Potable Water
- Media Temperature: 33 to 140 F
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Supplier: Zurn Industries LLC
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
- Back Flow Preventer Assembly: Yes
- Media Description: Water
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Supplier: Red Valve Company, Inc.
Description: A Revolutionary Design for Backflow Prevention. Tideflex Duckbill Check Valves have low headloss and achieve the tightest possible seal for backflow operations, particularly at low flow rates. The flexibility of the Tideflex Check Valve allows the
- Back Flow Preventer Assembly: Yes
- Connection: Bolt Flange
- Material of Construction: Rubber
- Media Description: Water
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Supplier: General Pipe Cleaners
Description: Flood-Guard™ operates like a check valve to seal off water back-up caused by overloaded sewers. Water flows normally through the drain until the sewer begins to back up. Then the Flood-Guard™ float rises to seal off the drain opening until the water recedes. A screwdriver and a
- Back Flow Preventer Assembly: Yes
- Connection: Tube Fitting
- Material of Construction: Rubber, Stainless Steel
- Media Description: Water, Cold Water, Wastewater
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Introducing the Tideflex® Duckbill Check Valve – the gold standard in backflow prevention. With an unrivaled reputation, Tideflex® Duckbill Check Valves boast a low cracking pressure, effectively eliminating standing water while maintaining minimal head loss (read more)
Browse Check Valves Datasheets for DeZURIK, Inc. -
Introducing the CheckMate UltraFlex® In-Line Check Valve, leading the industry in reliability and backflow prevention. Red Valve is excited to announce an updated video showcasing this premier product. The CheckMate UltraFlex® video highlights its heavy (read more)
Browse Check Valves Datasheets for DeZURIK, Inc. -
O'Keefe Controls Co. Tamperproof Checked Orifices are a unique style of flow control consisting of an integral check valve and a fixed precision orifice incorporated into a single fitting. This efficient construction allows metered flow in one (read more)
Browse Flow Orifices and Flow Restrictors Datasheets for O'Keefe Controls Co. -
, offering reliable protection against backflow while enabling smooth and efficient fluid flow. Learn More in Our Semiconductor Check Valves Blog Post (read more)
Browse Check Valves Datasheets for DFT Inc. -
Parker’s CK1 check valves provide safe and effective backflow prevention for a variety of refrigeration applications. The gravity closing feature makes these valves ideal for systems that use a VFD or compressor unloading feature to reduce capacity as they can tolerate load (read more)
Browse Pressure Relief Valves Datasheets for Parker Sporlan Division -
existing device like a valve, manifold, vessel wall or some other fitting, and so effectively prevent backflow over a long, trouble-free operating life. To address the variety of industrial applications for these devices, O'Keefe Controls Co. manufactures Threaded Insert Check Valves in both (read more)
Browse Check Valves Datasheets for O'Keefe Controls Co. -
Check valves are simple components used in a fluid management system that permit the flow of fluid in one direction while preventing backflow in the other. But without proper application and installation, even the most high-quality components can’t perform properly. Download this (read more)
Browse Check Valves Datasheets for DFT Inc. -
– Uses a ball as the check mechanism to prevent backflow. Ball Valve – A valve with a spherical closure element that rotates to open or close the flow path. Butterfly Valve – A (read more)
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Quiet Protection for Critical Cooling. DFT ALC® Axial Flow Check Valves delivers low pressure drop, silent operation, and reliability for mission-critical cooling system applications. Cooling systems in continuous-duty applications require dependable uptime (read more)
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Alternative Fuels: Emissions, Economics, and Performance
… and vapor connections are protected by positive shut-off valves located as close to the tank as possible in combination with excess flow valves (or a backflow check valve for inlet connections) installed … … prevent the escape of LPG in event of a …
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Synthesis of Fructooligosaccharides from Aspergillus niger Commercial Inulinase Immobilized in Montmorillonite Pretreated in Pressurized Propane and LPG
… by Kuhn et al. [25], which consists basically of a solvent (propane or LPG ) reservoir, two thermostatic … All lines of the experimental setup consisted of 1/16 in. OD tubing of stainless steel (HIP), and between the pump and solvent reservoir, a check (one-way) valve (HIP 15-41AF1-T … … to avoid pressurization solvent backflow to the head of …
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States > Pennsylvania > State > Regulations > Title 67 - Transportation > Article VII - Vehicle Characteristics > Subpart A - Vehicle Code Provisions > Part I ...
A hydrostatic relief valve with a pressure setting not lower than 350 psi nor higher than 500 psi shall be installed between the backflow check valves and the fuel cutoff valve to the carburetor and between two positive liquid shut-off points … An LPG fuel supply container shall be permanently marked as follows: .
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California Code of Regulations (CCR) - Title 13 - Motor Vehicles - Division 2 - Department of the California Highway Patrol - Chapter 4 - Special Equipment (Ex...
A hydrostatic relief valve with a pressure setting not lower than 350lb/in nor higher than 500lb/in shall be installed between the backflow check valves and the gaseous fuel cutoff valve to the carburetor. Each LPG fuel supply container shall be permanently marked as follows: .
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States > California > State > Regulations > Title 13 - Motor Vehicles > Division 2 - Department of the California Highway Patrol > [13 CCR division 2, chapter ...
A hydrostatic relief valve with a pressure setting not lower than 350 psi nor higher than 500 psi shall be installed between the backflow check valves and the gaseous fuel cutoff valve to the carburetor. Each LPG fuel supply container shall be permanently marked as follows: .
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States > West Virginia > State > Regulations > Title 126 - Board of Education > [126 WVCSR 89] 089 - West Virginia Minimum Requirements for Design and Equipmen...
The fueling systems shall be equipped with a backflow check valve that will prevent the return flow of propane fuel. B. Engine compartment labels to include LPG warning and instructions to mechanics including the following: .
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Federal Register > Monday, July 22, 1996 > [61 FR 37849] Miscellaneous Changes to General Industry and Construction Standards; Proposed Paperwork Collection, C...
Paragraphs (b)(15)(v)-(vii) of §1910.110 contain requirements for the location of backflow check valves , excess-flow valves, and shutoff valves on tank cars and transport trucks. Paragraphs (c)(2)(ii)-(iv) of §1910.110 contain specifications for the marking of LPG cylinders.