Master valve definition

Master valve means a large valve located on the wellhead and used to control the flow of oil or gas from a well.
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Master valve means a remote control valve located after the backflow prevention device that controls the flow of water to the irrigation system mainline.
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Master valve means automatic valve installed at the irrigation supply point which controls water flow into the irrigation system. When this valve is closed water will not be supplied to the irrigation system.
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Examples of Master valve in a sentence

  • Engineering design: Design of well and wellhead.2. Civil works: Construction of roads, drilling platforms, water supply, cuttings handling etc.3. Wellhead procurement: Master valve, operating valve, side valves, fittings, pipes etc.4. Wellhead installation: Mechanical works, drilling cellar, borehole shed, silencer etc.

  • The MASTER option of the MACHINE SETUP menu allows you to define how the Master valve signal works.

  • Choose from the following options:Activate Master= All outputsUp outputs DisabledBy default, the MASTER option is set to “All Outputs”, which means the Master valve output is activated whenever the AutoGlideXR system activates any of its control outputs.

  • Master valve shall be of size, type and manufacturer as indicated on the Drawings.

  • The extension wire carries only 24 Watt power.• The number of leads in the extension wire must be at least that of the number of valves intended for operation plus two more: one for the Master- valve and one for a common wire.

  • Select “Disabled” if the Master output is not needed.Select “All Outputs” to have the Master valve output activated whenever the RiteHeight system activates any of its control outputs.

  • Master valve selections: 2 Normally Closed Valves or Normally Open Valves with programmable delay from 0 to 600 seconds.

  • SPECIFICATION: VAT-16, VAT-32, & PGMR VAT-16Operating Voltage: 120VAC, 60Hz or 240VAC, 50HzTransmitter Power: 4 WattsStations: 16 plus master valve (expandable to 32 stations, using VAT-32 expansion module)*Operation: Master valve, plus up to 16 stations in any combination, and with a time delayed pump actuating relay’s contactsActuating Voltage: 9 to 30vots AC/DC Range: 5+ miles (8+ km).

  • The MASTER valve option determines how the Master valve output signal works.

  • Master valve has a wheel which is used to locally shut down valve.


More Definitions of Master valve

Master valve. Assembly: Install where indicated on the drawings. Isolation Gate Valve Assembly: Flush Cap Assembly: Install at the end of each drip irrigation lateral pipe as shown on the installation details.
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Master valve means an automatic control valve located inline of the mainline and upstream of the rest of an irrigation system’s automatic control valves.
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Related to Master valve

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  • X-ray high-voltage generator means a device which transforms electrical energy from the potential supplied by the x-ray control to the tube operating potential. The device may also include means for transforming alternating current to direct current, filament transformers for the x-ray tube(s), high-voltage switches, electrical protective devices, and other appropriate elements.

  • energy from renewable sources or ‘renewable energy’ means energy from renewable non-fossil sources, namely wind, solar (solar thermal and solar photovoltaic) and geothermal energy, ambient energy, tide, wave and other ocean energy, hydropower, biomass, landfill gas, sewage treatment plant gas, and biogas;

  • Energy Use Intensity (EUI means the kBTUs (1,000 British Thermal Units) used per square foot of gross floor area.

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  • Co-generation means the sequential production of electricity

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  • Asynchronous store and forward means the transmission of a patient's medical information from an originating site to the health care provider for telehealth at a distant site without the presence of the patient.

  • Standard Methods for the Examination of Water and Wastewater means the most recent edition of Standard Methods for the Examination of Water and Wastewater published jointly by the American Public Health Association, the American Waterworks Association and the Water Environment Federation;

  • Energy storage system means a system which stores energy and releases it in the same form as was input.

  • Translucent means a substance that allows light to pass through, but does not allow an object or person to be seen through the substance.

  • Synchronous interaction means a real-time interaction between a patient and a health care provider for telehealth located at a distant site.

  • Electric generation service means the provision of retail

  • Electric utility steam generating unit means any steam electric generating unit that is constructed for the purpose of supplying more than one-third of its potential electric output capacity and more than 25 MW electrical output to any utility power distribution system for sale. Any steam supplied to a steam distribution system for the purpose of providing steam to a steam-electric generator that would produce electrical energy for sale is also considered in determining the electrical energy output capacity of the affected facility.

  • User seal check or "fit check" means an action conducted by the respirator user to determine if the respirator is properly seated to the face. Examples include negative pressure check, positive pressure check, irritant smoke check, or isoamyl acetate check.

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  • Data Use Agreement means the agreement incorporated into the Contract to facilitate creation, receipt, maintenance, use, disclosure or access to Confidential Information.

  • Data Processing Equipment means any equipment, computer hardware, or computer software (and the lease or licensing agreements related thereto) other than Personal Computers, owned or leased by the Failed Bank at Bank Closing, which is, was, or could have been used by the Failed Bank in connection with data processing activities.

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  • Non-Retail Behind The Meter Generation means Behind the Meter Generation that is used by municipal electric systems, electric cooperatives, or electric distribution companies to serve load.