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Relief valve

Index Relief valve

A relief valve or pressure relief valve (PRV) is a type of safety valve used to control or limit the pressure in a system; pressure might otherwise build up and create a process upset, instrument or equipment failure, or fire. [1]

79 relations: Air brake (road vehicle), Ascus, Balakovo Nuclear Power Plant, Best Friend of Charleston, Blowoff valve, Boiler, Boiler explosion, Boiling liquid expanding vapor explosion, Broken Homes, Chemical plant, Chernobyl disaster, Chlorine production, Clitoral pump, Coffee bean storage, Comité Européen de l'Industrie de la Robinetterie, Cryogenic storage dewar, Expansion ratio, Explosion protection, Explosion vent, Feedback, Flow control valve, Formosa Plastics propylene explosion, Fuse (hydraulic), Gas flare, Giant cicada, Glossary of firefighting equipment, Glossary of fuel cell terms, Glossary of mechanical engineering, Glossary of underwater diving terminology, High-integrity pressure protection system, Home inspection, Hydraulic machinery, Hydronics, Hymatic, Index of mechanical engineering articles, Insensitive munition, Laser safety, Leslie Controls, Lifeboat (shipboard), List of valves, Loss-of-coolant accident, Maximum allowable operating pressure, Metering pump, MythBusters (2010 season), National Board of Boiler and Pressure Vessel Inspectors, Nickel–cadmium battery, North West England, Oil burner, One Meridian Plaza, Pilot-operated relief valve, ..., Poppet valve, Pressure cooking, Pressure vessel, Process flow diagram, Project High Wire, PRV, Reduced pressure zone device, Refrigerated transport Dewar, Road debris, Rupture disc, Safety shutoff valve, Safety valve, Safety valve (disambiguation), Shell Haven, Snubber, Sorption pump, Space Shuttle external tank, Space Shuttle Solid Rocket Booster, Speed bump, Steam generator (nuclear power), Tank car, Texas City Refinery explosion, Thorpe tube flowmeter, Turbocharger, Ullage, Vacuum breaker, Vacuum flask, Valve, Water hammer. Expand index (29 more) »

Air brake (road vehicle)

An air brake or, more formally, a compressed air brake system, is a type of friction brake for vehicles in which compressed air pressing on a piston is used to apply the pressure to the brake pad needed to stop the vehicle.

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Ascus

An ascus (plural asci; from Greek ἀσκός 'skin bag') is the sexual spore-bearing cell produced in ascomycete fungi.

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Balakovo Nuclear Power Plant

Balakovo nuclear power station (Балаковская АЭС) is located in the city of Balakovo, Saratov Oblast, Russia, about 900 kilometers south-east of Moscow.

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Best Friend of Charleston

The Best Friend of Charleston was a steam-powered railroad locomotive.

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Blowoff valve

A blowoff valve (BOV), dump valve or compressor bypass valve (CBV) is a pressure release system present in most turbocharged engines.

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Boiler

A boiler is a closed vessel in which fluid (generally water) is heated.

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Boiler explosion

A boiler explosion is a catastrophic failure of a boiler.

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Boiling liquid expanding vapor explosion

A boiling liquid expanding vapor explosion (BLEVE) is an explosion caused by the rupture of a vessel containing a pressurized liquid that has reached temperatures above its boiling point.

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Broken Homes

Broken Homes is the fourth novel in the Rivers of London series by English author Ben Aaronovitch, published 2013 by Gollancz.

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Chemical plant

A chemical plant is an industrial process plant that manufactures (or otherwise processes) chemicals, usually on a large scale.

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Chernobyl disaster

The Chernobyl disaster, also referred to as the Chernobyl accident, was a catastrophic nuclear accident.

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Chlorine production

This article presents the industrial and laboratory methods to prepare elemental chlorine.

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Clitoral pump

A clitoral pump is a sex toy designed for women's pleasure that is applied to the clitoris or labia to create suction and increase blood flow to the genitals.

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Coffee bean storage

Coffee bean storage is a broad term describing the packaging and preservation of coffee beans throughout the process from harvesting to brewing.

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Comité Européen de l'Industrie de la Robinetterie

The Comité Européen de l'Industrie de la Robinetterie, mostly known as the CEIR or the European Association for the Taps and Valves Industry, is the European trade association for the taps and valves industry.

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Cryogenic storage dewar

A cryogenic storage dewar (named after James Dewar) is a specialised type of vacuum flask used for storing cryogens (such as liquid nitrogen or liquid helium), whose boiling points are much lower than room temperature.

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Expansion ratio

The expansion ratio of a liquefied and cryogenic substance is the volume of a given amount of that substance in liquid form compared to the volume of the same amount of substance in gaseous form, at room temperature and normal atmospheric pressure.

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Explosion protection

Explosion protection is used to protect all sorts of buildings and civil engineering infrastructure against internal and external explosions or deflagrations.

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Explosion vent

An explosion vent or rupture panel is a safety device to protect equipment or buildings against excessive internal, explosion-incurred pressures, by means of pressure relief.

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Feedback

Feedback occurs when outputs of a system are routed back as inputs as part of a chain of cause-and-effect that forms a circuit or loop.

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Flow control valve

A flow control valve regulates the flow or pressure of a fluid.

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Formosa Plastics propylene explosion

The Formosa Plastics Propylene Explosion was a propylene release and explosion that occurred on October 6, 2005, in the Olefins II Unit at the Formosa Plastics plant in Point Comfort, Texas, United States.

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Fuse (hydraulic)

In hydraulic systems, a fuse (or velocity fuse) is a component which prevents the sudden loss of hydraulic fluid pressure.

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Gas flare

A gas flare, alternatively known as a flare stack, is a gas combustion device used in industrial plants such as petroleum refineries, chemical plants, natural gas processing plants as well as at oil or gas production sites having oil wells, gas wells, offshore oil and gas rigs and landfills.

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Giant cicada

The Giant cicada (Quesada gigas), also known as the chichara grande, coyoyo, or coyuyo, is a species of large cicada native to North, Central, and South America.

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Glossary of firefighting equipment

This is a glossary of firefighting equipment.

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Glossary of fuel cell terms

The Glossary of fuel cell terms lists the definitions of many terms used within the fuel cell industry.

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Glossary of mechanical engineering

Most of the terms listed in Wikipedia glossaries are already defined and explained within Wikipedia itself.

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Glossary of underwater diving terminology

This is a glossary of technical terms, jargon, diver slang and acronyms used in underwater diving.

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High-integrity pressure protection system

A high-integrity pressure protection system (HIPPS) is a type of safety instrumented system (SIS) designed to prevent over-pressurization of a plant, such as a chemical plant or oil refinery.

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Home inspection

A home inspection is a limited, non-invasive examination of the condition of a home, often in connection with the sale of that home.

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Hydraulic machinery

Hydraulic machines are machinery and tools that use liquid fluid power to do simple work.

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Hydronics

Hydronics is the use of a liquid heat-transfer medium in heating and cooling systems.

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Hymatic

Hymatic, also known as Hymatic Engineering, are a British manufacturer of heat exchangers, fluid control technology and cryogenic systems as part of an aircraft's environmental control system (ECS), headquartered in Worcestershire.

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Index of mechanical engineering articles

This is an alphabetical list of articles pertaining specifically to mechanical engineering.

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Insensitive munition

Insensitive munitions are munitions that are designed to withstand stimuli representative of severe but credible accidents.

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Laser safety

Laser safety is the safe design, use and implementation of lasers to minimize the risk of laser accidents, especially those involving eye injuries.

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Leslie Controls

Leslie Controls, Inc., part of the Thermal Fluid Division of Circor International Inc., is a manufacturer of industrial water heaters, control systems and regulators headquartered in Tampa, Florida.

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Lifeboat (shipboard)

A lifeboat is a small, rigid or inflatable boat carried for emergency evacuation in the event of a disaster aboard a ship.

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List of valves

Valves are quite diverse and may be classified into a number types.

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Loss-of-coolant accident

A loss-of-coolant accident (LOCA) is a mode of failure for a nuclear reactor; if not managed effectively, the results of a LOCA could result in reactor core damage.

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Maximum allowable operating pressure

Maximum allowable operating pressure or MAOP refers to the wall strength of a pressurized cylinder such as a pipeline or storage tank and how much pressure the walls may safely hold in normal operation.

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Metering pump

A metering pump moves a precise volume of liquid in a specified time period providing an accurate volumetric flow rate.

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MythBusters (2010 season)

The cast of the television series MythBusters perform experiments to verify or debunk urban legends, old wives' tales, and the like.

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National Board of Boiler and Pressure Vessel Inspectors

The National Board of Boiler and Pressure Vessel Inspectors is composed of chief boiler and pressure vessel inspectors representing states, cities, and provinces enforcing pressure equipment laws and regulations.

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Nickel–cadmium battery

The nickel–cadmium battery (NiCd battery or NiCad battery) is a type of rechargeable battery using nickel oxide hydroxide and metallic cadmium as electrodes.

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North West England

North West England, one of nine official regions of England, consists of the five counties of Cheshire, Cumbria, Greater Manchester, Lancashire and Merseyside.

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Oil burner

An oil burner is a heating device which burns #1, #2 and #6 heating oils, diesel fuel or other similar fuels.

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One Meridian Plaza

One Meridian Plaza was a 38-story high-rise office building in Philadelphia, Pennsylvania, United States.

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Pilot-operated relief valve

070111 hydraulicspneumatics.com no opening until 90% of full pressure --> Like other pressure relief valves (PRV), pilot operated relief valves (PORV) are used for emergency relief during overpressure events (e.g., a tank gets too hot and the expanding fluid increases the pressure to dangerous levels).

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Poppet valve

A poppet valve (also called mushroom valve) is a valve typically used to control the timing and quantity of gas or vapour flow into an engine.

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Pressure cooking

Pressure cooking is the process of cooking food, using water or other cooking liquid, in a sealed vessel known as a pressure cooker.

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Pressure vessel

A pressure vessel is a container designed to hold gases or liquids at a pressure substantially different from the ambient pressure.

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Process flow diagram

A process flow diagram (PFD) is a diagram commonly used in chemical and process engineering to indicate the general flow of plant processes and equipment.

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Project High Wire

Project High Wire was a United States Air Force modernization programme for selected North American Aviation F-100Cs, Ds and Fs Super Sabre that were still in active inventory.

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PRV

PRV may refer to.

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Reduced pressure zone device

A reduced pressure zone device (RPZD, RPZ, or RPZ valve) is a type of backflow prevention device used to protect water supplies from contamination.

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Refrigerated transport Dewar

A refrigerated transport Dewar is a refrigerated transport vessel with an insulated Dewar flask (vacuum) design to carry cryogenic liquid.

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Road debris

Road debris, a form of road hazard, is debris on or off a road.

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Rupture disc

A rupture disc, also known as a pressure safety disc, burst disc, bursting disc, or burst diaphragm, is a non-reclosing pressure relief device that, in most uses, protects a pressure vessel, equipment or system from overpressurization or potentially damaging vacuum conditions.

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Safety shutoff valve

When this type of valve is tripped, the flow is quickly stopped and an indicator disc tells the operator that the electrical circuit has been opened by a failure somewhere in the system.

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Safety valve

A safety valve is a valve that acts as a fail-safe.

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Safety valve (disambiguation)

A safety valve is a mechanism for the release of a substance from a pressurized vessel when the pressure or temperature exceeds preset limits.

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Shell Haven

Shell Haven was a port on the north bank of the Thames Estuary at the eastern end of Thurrock, Essex, England and then an oil refinery.

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Snubber

A snubber is a device used to suppress ("snub") a phenomenon such as voltage transients in electrical systems, pressure transients in fluid systems (caused by for example water hammer) or excess force or rapid movement in mechanical systems.

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Sorption pump

The sorption pump is a vacuum pump that creates a vacuum by adsorbing molecules on a very porous material like molecular sieve which is cooled by a cryogen, typically liquid nitrogen.

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Space Shuttle external tank

A Space Shuttle external tank (ET) was the component of the Space Shuttle launch vehicle that contained the liquid hydrogen fuel and liquid oxygen oxidizer.

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Space Shuttle Solid Rocket Booster

The Space Shuttle Solid Rocket Boosters (SRBs) were the first solid fuel motors to be used for primary propulsion on a vehicle used for human spaceflight and provided the majority of the Space Shuttle's thrust during the first two minutes of flight.

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Speed bump

For other uses, see Speed bump (disambiguation). For the speed changes in cinematography, see Speed ramping. Speed bumps (or speed breakers) are the common name for a family of traffic calming devices that use vertical deflection to slow motor-vehicle traffic in order to improve safety conditions.

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Steam generator (nuclear power)

Steam generators are heat exchangers used to convert water into steam from heat produced in a nuclear reactor core.

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Tank car

A tank car (International Union of Railways (UIC): tank wagon) is a type of railroad car (UIC: railway car) or rolling stock designed to transport liquid and gaseous commodities.

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Texas City Refinery explosion

The Texas City Refinery explosion occurred on March 23, 2005, when a hydrocarbon vapor cloud was ignited and violently exploded at the ISOM isomerization process unit at BP's Texas City refinery in Texas City, Texas, killing 15 workers, injuring more than 180 others and severely damaging the refinery.

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Thorpe tube flowmeter

A Thorpe tube flowmeter is an instrument used to directly measure the flow rate of a gas in medical instruments.

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Turbocharger

A turbocharger, or colloquially turbo, is a turbine-driven forced induction device that increases an internal combustion engine's efficiency and power output by forcing extra air into the combustion chamber.

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Ullage

Ullage or headspace is the unfilled space in a container, particularly with a liquid.

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Vacuum breaker

A vacuum breaker is an attachment commonly placed on a bibcock valve or toilet or urinal flush valve, that prevents water from being siphoned backward into the public drinking water system.

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Vacuum flask

A vacuum flask (also known as a Dewar flask, Dewar bottle or thermos) is an insulating storage vessel that greatly lengthens the time over which its contents remain hotter or cooler than the flask's surroundings.

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Valve

A valve is a device that regulates, directs or controls the flow of a fluid (gases, liquids, fluidized solids, or slurries) by opening, closing, or partially obstructing various passageways.

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Water hammer

Water hammer (or, more generally, fluid hammer, also called hydraulic shock) is a pressure surge or wave caused when a fluid, usually a liquid but sometimes also a gas, in motion is forced to stop or change direction suddenly, a momentum change.

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Redirects here:

Pressure Operated Relief Valve, Pressure Relief Valve, Pressure release valve, Pressure relief valve, Pressure-relief device, Pressure-relief valve, Relief valves, Vacuum relief valve.

References

[1] https://en.wikipedia.org/wiki/Relief_valve

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