jockey pump discharge pressure

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  • Jockey Pump Requirements & Sizing - NFPA 20 - Fire ...

    2018-10-13 · Pressure of jockey pump shall be greater than the pressure of main fire pump by minimum of 10 psi to avoid false starting of main fire pump. For more information about setting of …

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  • Pressure Maintenance (Jockey) Pumps | Fire Protection ...

    1) The jockey pump stop point should equal the pump churn pressure plus the minimum static supply pressure. 2) The jockey pump start point should be at least 10 psi (0.68 bar) less than the jockey pump stop point. 3) The fire pump start point should be 5 psi (0.34 bar) less than the jockey pump start point.

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  • Jockey Pump Pressure - NFPA (fire) Code Issues - Eng

    2018-1-6 · We have witnessed the Pump tests. During the jockey pump test, its maximum pressure at 0 flow came out to be 172%. We have objected about this increase from limiting 140% to 172%. But the Fire Protection System designer says that he will install a pressure relief valve at the discharge of jockey pump and hence limit the 172% to 140%.

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  • Jockey Pumps - Water Pump Supply

    2017-10-14 · pressure on the fire protection system. A jockey pump should be sized to make-up the allowable leakage rate within 10 minutes or 3.8.L/min (Minimum of 1gpm whichever is larger.) Section A-5.24.5 (1) states that a jockey pump is usually required with automatically controlled pumps. These two sections give you the information to make the right choice.

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  • The Facts About Jockey Pumps | 2002-03-28 | PM

    2019-7-26 · mk3223 (Mechanical) 27 Jul 19 03:08 IMO, the PSV is needed if the maximum operating pressure is possibly exceed the system design pressure, i.e. 175 psig as mentioned. If the discharge pressure of the jacket pump is not to over it, the PSV may not be needed. And, you may confirm it with the Local AHJ for the final decision.

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  • The Jockey Pump, an Important Part of a Fire Pump System.

    2020-9-1 · Jockey pump keeps pressure in the system to prevent the main fire pump from operating to maintain system pressure. Jockey pumps are sized about 1% of flow to overcome small system leaks and typically sized for 10 PSI greater than the rated pressure of the main fire pump. Jockey pumps are not required to be UL Listed or FM Approved.

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  • Pressure relief on Jockey pump - NFPA (fire) Code

    2021-1-27 · 200 psi (13.8 bar), or 50 psi (3.4 bar) above the maximum discharge pressure, whichever is greater, at the fire pump discharge flange. Verification that the proper pressure rating for pipe and fittings is used in the installation is important. This value is set to ensure

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  • Pressure Maintenance (Jockey) Pumps | Fire Protection ...

    1) The jockey pump stop point should equal the pump churn pressure plus the minimum static supply pressure. 2) The jockey pump start point should be at least 10 psi (0.68 bar) less than the jockey pump stop point. 3) The fire pump start point should be 5 psi (0.34 bar) less than the jockey pump start point.

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  • High Pressure Jockey Pump For Fire Fighting

    High Pressure Jockey Pump For Fire Fighting System[CDLF 60Hz] • New vertical multistage centrifugal water pump • Impeller in AISI 304 • Shaft in AISI 304 • Suction and discharge port in AISI 304 • Good quality bearing, wear resistance mechanical seal Chat Now

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  • NPR280-Jockey Pump (Rev B) - National Foam

    2019-1-28 · The Foam Concentrate Jockey pump is used in In-Line Balanced Pressure (ILBP) Proportioning Systems to maintain pressure on the foam concentrate discharge line that supply remotely mounted ILBP modules. The pump is designed to maintain the foam concentrate pressure within preset limits and at the same time maintain foam concentrate volume in the ...

    Get Price
  • Jockey Pump Pressure - NFPA (fire) Code Issues - Eng

    2018-1-6 · During the jockey pump test, its maximum pressure at 0 flow came out to be 172%. We have objected about this increase from limiting 140% to 172%. But the Fire Protection System designer says that he will install a pressure relief valve at the discharge of jockey pump and hence limit the 172% to 140%. He says NFPA allows it for pressure ...

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  • What is a Jockey Pump? - ynspump.com

    Jockey pump is a kind of fire pump, with low capacity and high pressure, widely used to steady pressure for automatic sprinkler system and hydrant water supply system, to ensure the system water pressure is always in the state of pressure requirements, once sprinkler or hydrant water that can be discharged to meet the needs of flow and pressure ...

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  • Fire Pump Test at Discharge Header Versus Roof?

    2021-3-31 · The static pressure on the system should be higher than the flowing pressure of the system. You mentioned the jockey pump gauge is showing 100psi on the system, yet the pump is rated for 124psi. The jockey pump stop setting should be set to 124psi + the minimum suction pressure of city water supply (See NFPA 20, 2016 A14.2.6(4)(a)).

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  • User’s Manual - Pump Manufacturing

    2017-2-3 · Lag pump stops after the lag stop pressure is achieved and the flow rate is lower than the flow start setting for the off-delay time period. When all lag pumps are stopped, the jockey pump will restart and if the pressure is still being maintained, the pump will shut down after the off -time delay.

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  • Fairbanks Nijhuis Fire Pumps Brochure - Pentair

    2020-9-1 · Jockey Pump Controller: Starts the jockey pump across the line by sensing the system pressure via a sensing line from the system side of the check valve. This sensing line must be independent of the main fire pump controller sensing line. Controller is sized per the jockey pump motor horsepower and voltage. Jockey pump controllers are UL Listed ...

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  • Vertical Centrifugal Pumps

    2008-12-8 · 1- Plad VLS type pump 2- Multi-stage centrifugal jockey pump 3- Suction header with SDR-35 adapter 4- Butterfly valves 5- Silent check valves 6- Discharge header 7- Pressure relief valve 8- Air release valve 9- Strainer with automatic backwash 10- Control panel 11- Junction box 12- Dehumidifier 13- Heater 14- Sump pump 15- Lighting

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  • jockey pump - Pump engineering - Eng-Tips

    2010-4-20 · 1. In a standby mode, the jockey pump should operate continuously(24hr/day) because if the jockey pump stops the system pressure will drop simultaneously to atmospheric pressure because the water is considered incompressible and none of the hydraulic accumulator fitted in the system. 2.

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  • NPR280-Jockey Pump (Rev B) - National Foam

    2019-1-28 · The Foam Concentrate Jockey pump is used in In-Line Balanced Pressure (ILBP) Proportioning Systems to maintain pressure on the foam concentrate discharge line that supply remotely mounted ILBP modules. The pump is designed to maintain the foam concentrate pressure within preset limits and at the same time maintain foam concentrate volume in the ...

    Get Price
  • In Line Balanced Pressure Systems - National Foam

    Jockey Pump The Foam Concentrate Jockey Pump is used in ILBP Proportioning Systems to maintain pressure on the foam concentrate discharge line that supplies the remotely installed ILBP module(s). The jockey pump provides compliance with NFPA to insure the integrity of the foam concentrate piping with regard to piping installed underground or ...

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  • QUICK RESPONSE Fire Pumps - Jockey Pump.doc -

    2011-2-24 · A jockey pump, also know as a pressure maintenance pump, maintains the pressure in the fire sprinkler system to avoid non-emergency starting of the main fire pump. This keeps the main fire pump from short cycling, which shortens its life span. The jockey pump is designed to start before

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  • Jockey Pump Req'd for Wet Supply to Dry Valve?

    2020-4-9 · A jockey pump is a high pressure low capcity (flow) pump. ... check valve in the jockey pump discharge pipe spaced as far apart as practical to help stop the short cycle issues mentioned. Helps keep the water hammer off the mercoid or transducer switch in the jockey pump controller. Reply ...

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  • jockey pump - Pump engineering - Eng-Tips

    2010-4-20 · 1. In a standby mode, the jockey pump should operate continuously(24hr/day) because if the jockey pump stops the system pressure will drop simultaneously to atmospheric pressure because the water is considered incompressible and none of the hydraulic accumulator fitted in the system. 2.

    Get Price
  • User’s Manual - Pump Manufacturing

    2017-2-3 · Lag pump stops after the lag stop pressure is achieved and the flow rate is lower than the flow start setting for the off-delay time period. When all lag pumps are stopped, the jockey pump will restart and if the pressure is still being maintained, the pump will shut down after the off -time delay.

    Get Price
  • General Information Typical Pressure Sensing Line ...

    2014-5-8 · between the pump discharge flange and the discharge control valve, as appropriate. A.10.5.2.1 Installation of the pressure-sensing line between the discharge check valve and the control valve is necessary to facilitate isolation of the jockey pump controller (and sensing line) for maintenance without having to drain the entire system (See figure

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  • AURORA COMPLETE PUMP SOLUTIONS - Pentair

    2019-5-30 · • Aurora Jockey Pump • UL Listed Jockey Pump Controller • Pressure Sensing Lines Complete per NfPA 20 • Listed OS & Y Gate & Butterfly Valves with Tamper Switches • Suction and Discharge Pressure Gauges • Automatic Casing Air release Valve Casing Pressure relief Valve (Electric Packages) Hose Header with Valves, Caps & Chains

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  • DIESEL FIRE PUMP INSPECTION CHECKLIST

    2018-4-11 · Promptly correct any deficiencies found. The jockey pump stop point should equal the pump churn pressure plus the minimum sta tic supply pressure. The jockey pump start point should be at l east 0.68-bar (10-psi) less than the jockey pump stop point. The fire pump start point should be 0.34-bar (5-psi) less than the jockey pump start point.

    Get Price
  • Vertical Centrifugal Pumps

    2008-12-8 · 1- Plad VLS type pump 2- Multi-stage centrifugal jockey pump 3- Suction header with SDR-35 adapter 4- Butterfly valves 5- Silent check valves 6- Discharge header 7- Pressure relief valve 8- Air release valve 9- Strainer with automatic backwash 10- Control panel 11- Junction box 12- Dehumidifier 13- Heater 14- Sump pump 15- Lighting

    Get Price
  • NPR280-Jockey Pump (Rev B) - National Foam

    2019-1-28 · The Foam Concentrate Jockey pump is used in In-Line Balanced Pressure (ILBP) Proportioning Systems to maintain pressure on the foam concentrate discharge line that supply remotely mounted ILBP modules. The pump is designed to maintain the foam concentrate pressure within preset limits and at the same time maintain foam concentrate volume in the ...

    Get Price
  • User’s Manual - Pump Manufacturing

    2017-2-3 · Lag pump stops after the lag stop pressure is achieved and the flow rate is lower than the flow start setting for the off-delay time period. When all lag pumps are stopped, the jockey pump will restart and if the pressure is still being maintained, the pump will shut down after the off -time delay.

    Get Price
  • General Information Typical Pressure Sensing Line ...

    2014-5-8 · between the pump discharge flange and the discharge control valve, as appropriate. A.10.5.2.1 Installation of the pressure-sensing line between the discharge check valve and the control valve is necessary to facilitate isolation of the jockey pump controller (and sensing line) for maintenance without having to drain the entire system (See figure

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  • Pump Head vs Discharge Pressure (Easy explanation

    2017-8-10 · The pressure at the discharge of the pump, however, will be higher for the heavier solution. That’s why we would not be able to do simply looking at a pressure gauge and figure out what is pump’s discharge head ability is. Hopefully this post reveal some light on the difference between head and pressure.

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  • Pump Quest: shut off pressure, minimum flow and

    2012-1-6 · Jockey pump had a pressure-switch control set at 15.4 bar whereas main pump rating was 12 bar. These pressure-settings seem to be unduly high. Pressure-switch setting of 12.5 bar for the jockey pump should be good enough and at that pressure the jockey pump would be safely away from safe minimum flow. Then shaft-failures would not happen.

    Get Price
  • Vertical Centrifugal Pumps

    2008-12-8 · 1- Plad VLS type pump 2- Multi-stage centrifugal jockey pump 3- Suction header with SDR-35 adapter 4- Butterfly valves 5- Silent check valves 6- Discharge header 7- Pressure relief valve 8- Air release valve 9- Strainer with automatic backwash 10- Control panel 11- Junction box 12- Dehumidifier 13- Heater 14- Sump pump 15- Lighting

    Get Price
  • FAIRBANKS NIJHUIS PACKAGED FIRE PUMP SYSTEMS

    2013-7-22 · www.FairbanksNijhuis.com 3 PACKAGED FIRE PUMP SSTEMS Pump Features A. Fairbanks Nijhuis Fire Pump B. Motor C. Control Panel (Fire Pump) D. Test Loop E. Multi-stage Jockey Pump F. Control Panel (Jockey Pump) G. OS and Y Gate Valve H. Swing Check Valve I. Flow Meter J. Suction Pressure Gauge K. Discharge Pressure Gauge L. TCoupling (Guard Not Shown) M. Relief Valve (Jockey Pump …

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  • DIESEL FIRE PUMP INSPECTION CHECKLIST

    2018-4-11 · Promptly correct any deficiencies found. The jockey pump stop point should equal the pump churn pressure plus the minimum sta tic supply pressure. The jockey pump start point should be at l east 0.68-bar (10-psi) less than the jockey pump stop point. The fire pump start point should be 0.34-bar (5-psi) less than the jockey pump start point.

    Get Price
  • PRESSURE SETTINGS FOR FIRE PUMP CONTROLLERS |

    1992-5-1 · Selecting the pressure points for pump cut-in and cut-out is dependdent on the features of each individual pump assembly or system. Factors influencing the selection are maximum and minimum pump ...

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  • Inspection, Testing and Maintenance of fire pump

    2015-9-28 · Jockey pump is a low-flow, high-pressure pump It is designed to maintain a constant pressure on the system, accounting for minor pressure fluctuations. NFPA 20 suggests that the jockey pump be sized 1% of pump flow at 10 psi over pump rated pressure. Jockey Pump 19.

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  • China Fire Fighting Equipment with Jockey Pump -

    1 Jockey pump) and is fabricated from mild steel and epoxy powder coated to red color. The standard Fire Pump set will be complete with pressure switches, pressure gauge, suction & discharge manifolds with gate valves & non-return valves, flexible connectors, battery set for diesel engine etc. All are mounted on a strong common bas frame of mild

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  • NPE Series Fire Pump Set | Fire pumps Dubai

    This package consists of 2 electric motor driven fire pumps, (one is duty and another one is standby), jockey pump, pressure vessel, suction and discharge manifold, discharge pressure gauge, pressure switches, common controller for manual or auto operation …

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  • Pump Quest: shut off pressure, minimum flow and

    2012-1-6 · Jockey pump had a pressure-switch control set at 15.4 bar whereas main pump rating was 12 bar. These pressure-settings seem to be unduly high. Pressure-switch setting of 12.5 bar for the jockey pump should be good enough and at that pressure the jockey pump would be safely away from safe minimum flow. Then shaft-failures would not happen.

    Get Price
  • General Information Typical Pressure Sensing Line ...

    2014-5-8 · between the pump discharge flange and the discharge control valve, as appropriate. A.10.5.2.1 Installation of the pressure-sensing line between the discharge check valve and the control valve is necessary to facilitate isolation of the jockey pump controller (and sensing line) for maintenance without having to drain the entire system (See figure

    Get Price
  • User’s Manual - Pump Manufacturing

    2017-2-3 · Lag pump stops after the lag stop pressure is achieved and the flow rate is lower than the flow start setting for the off-delay time period. When all lag pumps are stopped, the jockey pump will restart and if the pressure is still being maintained, the pump will shut down after the off -time delay.

    Get Price
  • FAIRBANKS NIJHUIS PACKAGED FIRE PUMP SYSTEMS

    2013-7-22 · www.FairbanksNijhuis.com 3 PACKAGED FIRE PUMP SSTEMS Pump Features A. Fairbanks Nijhuis Fire Pump B. Motor C. Control Panel (Fire Pump) D. Test Loop E. Multi-stage Jockey Pump F. Control Panel (Jockey Pump) G. OS and Y Gate Valve H. Swing Check Valve I. Flow Meter J. Suction Pressure Gauge K. Discharge Pressure Gauge L. TCoupling (Guard Not Shown) M. Relief Valve (Jockey Pump …

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  • Monthly Electric Fire Pump Report - getmaintainx.com

    2021-5-3 · Explain all “No” responses and corrective actions taken: (Ex: 8. Pump packing leaking too much – repaired 5/1)

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  • The City of Oklahoma City Fire Department

    2015-12-9 · Inspect the fire pump, driver, piping, jockey pump and the controller to ensure compliance with the adopted codes and plan design. Survey the site of the pump test to determine how the pump discharge will drain or be disposed of. The discharge from the smallest fire pump can approach 750 GPM and contain rocks and debris. If

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  • DIESEL FIRE PUMP INSPECTION CHECKLIST

    2018-4-11 · Promptly correct any deficiencies found. The jockey pump stop point should equal the pump churn pressure plus the minimum sta tic supply pressure. The jockey pump start point should be at l east 0.68-bar (10-psi) less than the jockey pump stop point. The fire pump start point should be 0.34-bar (5-psi) less than the jockey pump start point.

    Get Price
  • Testing & Commissioning Of Fire Pumps – Method

    In case of any pressure drop in line due to hose reel, fire hose, sprinkler opening or any small leak in the lines, if the pressure reaches to the cut-in pressure point for the jockey pump it will start automatically and stop automatically at cut-off pressure. If the jockey pump couldn’t maintain the pressure in the system and pressure …

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