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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
- Media: Air, Chemical, Hydraulic Fluid, Water, Hot Water, Cold Water, Ground Water, Potable Water, Salt Water, Gas, Gasoline / Diesel Fuel, High Purity Gas, LP - Gas, Natural Gas, Sour Gas, Specialty / Corrosive Gases, Steam, Other
- Valve Size: 1 inch
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Supplier: Check-All Valve Mfg. Co.
Description: The Check-All Flanged & Drilled - PTFE Lined check valve is a one-piece body valve with ANSI/ASME flanged ends. The valve has a solid one-piece PTFE liner, which covers the flange faces out to the raised face diameter. All wetted surfaces are fluoropolymer (PTFE/FEP/PFA) including the
- Media: Air, Chemical, Hydraulic Fluid, Water, Hot Water, Cold Water, Ground Water, Potable Water, Salt Water, Gas, Gasoline / Diesel Fuel, High Purity Gas, LP - Gas, Natural Gas, Sour Gas, Specialty / Corrosive Gases, Steam, Other
- Valve Size: 1.5 inch
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Supplier: Check-All Valve Mfg. Co.
Description: Tri-Clamp® fittings, the Waukesha Cherry Burrell® Q-Clamp and S-Line fittings, and others with ID dimensions equal to the "F" dimension listed in the Sizes & Dimensions link below. The compact SCV design fits inside a single fitting, and requires no additional space in the
- Media: Air, Chemical, Water, Hot Water, Cold Water, Ground Water, Potable Water, Salt Water, Gas, Gasoline / Diesel Fuel, High Purity Gas, LP - Gas, Natural Gas, Sour Gas, Specialty / Corrosive Gases, Steam, Other
- Valve Size: 2.5 inch
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Supplier: Check-All Valve Mfg. Co.
Description: For over 35 years, the compact, fluoropolymer (PTFE/FEP/PFA), Sanitary Insert Valve has been used as the most economical solution to providing a check valve in a new or existing sanitary piping system. This valve style is designed to fit into grooved-end clamp-type fittings. Since the
- Media: Air, Chemical, Water, Hot Water, Cold Water, Ground Water, Potable Water, Salt Water, Gas, Gasoline / Diesel Fuel, High Purity Gas, LP - Gas, Natural Gas, Sour Gas, Specialty / Corrosive Gases, Steam, Other
- Valve Size: 1 inch
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Supplier: National Oilwell Varco
Description: marketplace and is commonly found on land rigs all over the world. NOV Float Valves prevent backflow downhole, and our extensive line of Plunger and Flapper Style Float Valves will satisfy any need in this area of flow control. For pressure monitoring from 0-10,000 PSI,
- Controlled Pressure Range: 0.0 to 10000 psi
- Media Description: Gas
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Description: incorporate a swing-type disc that allows flow in one direction while preventing backflow in the opposite direction. The “positive safety” aspect refers to additional safety mechanisms implemented in these valves. For example, some positive safety swing check
- Valve Size: 2 to 16 inch
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Backflow Preventers
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Check Valves
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Featured Products Top
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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. -
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tight shut-off and protects other equipment in the system from water hammer in liquid, gas or steam services. Stainless, Hastelloy C and Alloy 20 construction insures a long service life. DFT Inc., manufacturers of the broadest product offering of in-line, spring-assisted, and silent check (read more)
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The Cata-Dyne™ LH Line Heater prevents equipment freezing and possible hydrate formation during pressure reduction at natural gas regulating sites. The Cata-Dyne™ Line Heater heats the gas stream using infrared radiant heat transfer, eliminating the use of burners, glycol fluid and (read more)
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helping prevent accidents, mitigating risks, and ensuring the safety of workers and the public. “Safety is always our primary focus and concern," states Travis Lenander, CEO at CO2Meter. "With CO2Meter's market leading experience in the gas detection and the safety (read more)
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stay on top of the latest safety practices in the industry. With gas safety training and guidelines in place, partners can safeguard personnel, prevent gas accidents, comply with regulations, drive added revenue, enhance reputation, and uncover cost savings. It is a critical program that (read more)
Browse Gas Instruments Datasheets for CO2Meter.com -
Combination Air Release/Degassing Valve Series CARD — US Patent #10683946 Combination Air Release and Degassing Valve in a single unit. Also provides Vacuum Relief Valve function, which prevents pipeline vacuum in case of leaks or siphon. Connections from 1″ – 4″ in a (read more)
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than ball designs; does not deform under pressure and assures minimal emission of system liquid prior to sealing. Sizes from 1/2″ to 4″ in a wide range of materials and connection types. Series DGV United States Patent #7,481,238 B2. Unique float design opens as air or gas (read more)
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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)
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Protective gas prevents electrical flashover High voltage can result in an electric short circuit made through the air, even without direct contact. Gas-insulated switch panels prevent this undesired effect. Using vacuum pumps that are very often manufactured (read more)
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More Information Top
Indicates content that may require registration and/or purchase.
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Hydrogen mitigation Gas Characterization System: System design description
The sample exhaust backflow preventer (SV-*19) is installed in the sample gas return line downstream of the pump.
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States > Illinois > State > Regulations > Title 35 - Environmental Protection > Subtitle C - Water Pollution > Chapter II - Environmental Protection Agency > [...
In - line backflow preventers are not acceptable. .... f) Chlorine Gas Supply .
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States > Florida > State > Administrative Weekly > 2007 > [2007 FL Register 518] 05/18/2007
…including fittings, valves, and meters); establishing or implementing a cross-connection control program (including installing, repairing/replacing, or testing backflow preventers ); testing and maintaining water … water mains or service lines ; operating or exercising isolation … performing water quality measurements in water distribution systems; collecting … public water system and excludes work on fire protection systems; irrigation systems; or gas , oil, or steam…
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States > Illinois > State > Regulations > Title 77 - Public Health > Chapter I - Department of Public Health > Subchapter r - Water and Sewage > [77 Ill. Adm. ...
The water supply line to the chlorine injector shall be equipped with an electric shut-off valve interlocked with the pump and shall be equipped with a suitable backflow preventer . .... F) Gas chlorinators shall be repaired and operated only in accordance with the manufacturer's directions.
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Hazard Evaluation for a Salt Well Centrifugal Pump Design Using Service Water for Lubrication and Cooling
aerosols to atmosphere from SS? pump pit due to flammable gas deflagration in pit. .... Mistransfer into SWP causes tank waste to backtlow through the coolant line , backflow preventer failed .
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Hazard Evaluation for the Saltwell Chempump and a Saltwell Centrifugal Pump Design using Service Water for Lubrication and Cooling
Release of toxic or radioactive aerosols to atmosphere from ruptured transfer line due to flammable gas deflagration in transfer line . .... Release of waste to soil surface from pump pit caused by freezing and rupture of backflow preventer or coolant line .
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Standard-C hydrogen monitoring system, system design description
Located between the filters and where the sample gas line enters the enclosure is a sample inlet back- flow preventer (BFP-*-1-1) used to prevent the back flow of gas into the tank. .... Althoughno ignition sources are known to exist in the sampling system, the back-flow preventer (BFP) has…
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States > Florida > State > Regulations > Division 62 - Departmental‚ Department of Environmental Protection > [FAC 62-602] Chapter 602 - Water or Domesti...
…including fittings, valves, and meters); establishing or implementing a cross-connection control program (including installing, repairing/replacing, or testing backflow preventers ); testing and maintaining water … water mains or service lines ; operating or exercising isolation … performing water quality measurements in water distribution systems; collecting … public water system and excludes work on fire protection systems; irrigation systems; or gas , oil, or steam…
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States > Florida > State > Proposed Regulations > 2007 Documents > May 18, 2007 > [2007 FL Proposed fl-20070518-0035-0003495] 62-602 - Water Distribution Syste...
…including fittings, valves, and meters); establishing or implementing a cross-connection control program (including installing, repairing/replacing, or testing backflow preventers ); testing and maintaining water … water mains or service lines ; operating or exercising isolation … performing water quality measurements in water distribution systems; collecting … public water system and excludes work on fire protection systems; irrigation systems; or gas , oil, or steam…
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The Vanderbilt University nanoscale science and engineering fabrication laboratory
New non-potable cold and hot water lines were installed in the adjacent mechanical room and dedicated to the project, split via a backflow preventer . .... The clean rooms make use of localized gas delivery .