Reduced Pressure Backflow Preventer definition

Reduced Pressure Backflow Preventer means an assembly of two independently acting soft seated approved checkvalves, together with an independent differential pressure relief valve located between the checkvalves. The unit shall contain properly located test cocks and resilient sealed shutoff valves at each end of the assembly. To be approved these assemblies must be accessible for inspection and testing and be installed in an aboveground location with no part of the assembly being subject to submersion.
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Reduced Pressure Backflow Preventer means a device containing within its structure a minimum of two independently acting approved check valves, together with an automatically operating pressure differential relief valve located between the two check valves.
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Reduced Pressure Backflow Preventer means a testable Backflow Preventer that consists of two independently-acting, spring-loaded check valves separated by a spring-loaded differential pressure relief valve, two shutoff valves and four test cocks. A Reduced Pressure Backflow Preventer is typically used to provide protection against a Backflow from Severe Cross Connection Hazards.
Sample 1

Examples of Reduced Pressure Backflow Preventer in a sentence

  • Reduced Pressure Backflow Preventer – Non-residential, multi-family, or residential with three or more units.

  • Property owners who appeal to the District to change classification from a classification other than agricultural (AS, AT, CA, CB) will be required to install a Reduced Pressure Backflow Preventer at the property owners expense.

  • Only a Reduced Pressure Backflow Preventer or an approved air gap (complete separation from public water supply) may be used for protection.

  • In the event an Indenture Event of Default not arising from a Lease Event of Default shall occur and be continuing, the Owner Trustee may act under the foregoing provisions of this Section 9.02 without the concurrence of the Owner Participant; and the Owner Participant hereby appoints the Owner Trustee its agent and attorney-in-fact to act for it under the foregoing provisions of this Section 9.02 in such contingency.

  • Reduced Pressure Backflow Preventer means an assembly consisting of two (2) independently operating approved check valves with an automatically operating differential relief valve located between the check valves.

  • Ms. Berry presented a quote from Pettit and Pettit for cost and installation of a Reduced Pressure Backflow Preventer for the Prosecuting Attorney’s office in the amount of $2,500.00.

  • AG- Air Gap AVB- Atmospheric Vacuum BreakerRPBP- Reduced Pressure Backflow Preventer PVB- Pressure Vacuum BreakerDCVA- Double Check Valve Assembly BPIAV- Backflow Preventer with Intermediate Atmospheric Vent Acceptable Types of Backflow Preventers Types of Hazard on Premises22.22(9)(d)1.

  • Reduced Pressure Backflow Preventer shall be a Febco 860 or 880 Reduced Pressure Assembly, or approved equal.

  • DESCRIPTION REQ'D Required RO Revised Ordinances, City and County of Honolulu RP Reduced Pressure Backflow Preventer SE Screwed End SJ Slip Joint SP Special Provision SQ Square SS Stainless Steel STD Standard STL Steel T & B Top & Bottom THK Thick TV Top Vertical TYP Typical UBC Uniform Building Code UL Underwriters’ Laboratories, Inc.

  • Air GapRPBP - Reduced Pressure Backflow Preventer DCVA - Double Check Valve AssemblyAVB - Atmospheric Vacuum Breaker PVB Pressure Vacuum BreakerBPIAV - Backflow Preventer with Intermediate Atmospheric Vent Types of Hazard on PremisesAcceptable Types of Backflow Preventers Comments*AGRPBPDCVAAVBPVBBPIAV1.


More Definitions of Reduced Pressure Backflow Preventer

Reduced Pressure Backflow Preventer means an assembly consisting of two (2) independently operating approved check valves with an automatically operating differential relief valve located between the check valves. Tightly closing shut-off valves are located on each end of the check valves, and properly located test cocks are positioned for the testing of the check valves and the relief valve. This device is approved for High Hazard category cross connections, and may never be installed in a location or manner which will subject the device to possible flooding or allow the relief valve to become submerged under water.
Sample 1
Reduced Pressure Backflow Preventer means an assembly of two independently acting approved check valves together with a hydraulically operating mechanically independent pressure relief valve located between the check valves and at the same time below the first check valve. The unit shall include properly located resilient seating test cocks and tightly closing resilient seating shut-off valves at each end of the assembly. The entire assembly shall meet the design and performance specifications as determined by a laboratory and a field evaluation program resulting in an approval by a recognized testing agency for backflow prevention assemblies. The assembly shall operate to prevention assemblies. The assembly shall operate to maintain the pressure in the zone between the two check valves at an acceptable level less than the pressure on the public water supply side of the assembly. At cessation of a normal flow the pressure between the two check valves shall be less than the pressure on the public water supply side of the device. In case of leakage either of the check valves, the differential relief valve shall operate to maintain the reduced pressure in the zone between the check valves by discharging to the atmosphere. To be approved, these assemblies must be readily accessible for in-line testing and maintenance and be installed in a location where no part of the assembly will be submerged.
Sample 1

Related to Reduced Pressure Backflow Preventer

  • Backflow preventer means a device or means to prevent backflow.

  • Backflow prevention device means a safety device used to prevent pollution or contamination of the water supply due to the reverse flow of water from the irrigation system.

  • low voltage means the set of nominal voltage levels that are used for the distribution of electricity and whose upper limit is generally accepted to be an a.c. voltage of 1000V ( or a d.c. voltage of 1500 V). [SANS 1019]

  • Operational Acceptance Tests means the tests specified in the Technical Requirements and Agreed Project Plan to be carried out to ascertain whether the System, or a specified Sub system, is able to attain the functional and performance requirements specified in the Technical Requirements and Agreed Project Plan, in accordance with the provisions of GCC Clause 27.2 (Operational Acceptance Test).

  • Backflow Prevention Assembly means any mechanical assembly installed at a water service line or at a plumbing fixture to prevent a backflow contamination event, provided that the mechanical assembly is appropriate for the identified contaminant at the cross connection and is an in-line field-testable assembly.

  • Single Phase Aerosol Air Freshener means an aerosol air freshener with the liquid contents in a single homogeneous phase and which does not require that the product container be shaken before use.

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  • Generator Forced Outage means an immediate reduction in output or capacity or removal from service, in whole or in part, of a generating unit by reason of an Emergency or threatened Emergency, unanticipated failure, or other cause beyond the control of the owner or operator of the facility, as specified in the relevant portions of the PJM Manuals. A reduction in output or removal from service of a generating unit in response to changes in market conditions shall not constitute a Generator Forced Outage.

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  • Operating pressure means the pressure at which the parts of an irrigation system are designed by the manufacturer to operate.

  • Generator Planned Outage means the scheduled removal from service, in whole or in part, of a generating unit for inspection, maintenance or repair with the approval of the Office of the Interconnection in accordance with the PJM Manuals.

  • Small quantity generator means a generator who generates less than 1000 kg of hazardous waste in a calendar month.

  • Double Phase Aerosol Air Freshener means an aerosol air freshener with the liquid contents in two or more distinct phases that requires the product container be shaken before use to mix the phases, producing an emulsion.

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  • Interconnector means equipment used to link the electricity system of the State to electricity systems outside of the State;

  • Wind Turbine means a mechanical/electrical system that converts the kinetic energy of blowing wind into mechanical or electric power.

  • Bulk gasoline plant means a gasoline storage and distribution facility with an average daily throughput of 20,000 gallons (76,000 liters) of gasoline or less on a 30-day rolling average.

  • Suction outlet means the opening or fitting through which the water under negative pressure is drawn from the pool or spa.

  • wind turbine generator or “WTG” means a structure comprising a tower, rotor with three blades connected at the hub, nacelle and ancillary electrical and other equipment which may include J-tube(s), transition piece, access and rest platforms, access ladders, boat access systems, corrosion protection systems, fenders and maintenance equipment, helicopter landing facilities and other associated equipment, fixed to a foundation;

  • Generation Interconnection Feasibility Study means a study conducted by the Transmission Provider (in coordination with the affected Transmission Owner(s)) in accordance with Tariff, Part IV, section 36.2.

  • port townsite means the townsite to be established pursuant to this Agreement near the harbour;

  • Hydraulic lift tank means a tank holding hydraulic fluid for a closed-loop mechanical system that uses compressed air or hydraulic fluid to operate lifts, elevators, and other similar devices.

  • generating plant means the generating facility described in Schedule 1 as amended from time to time;

  • Air-purifying respirator means a respirator with an air-purifying filter, cartridge, or canister that removes specific air contaminants by passing ambient air through the air-purifying element.