The test pressure is to be upto 2 times the maximum working pressure of the pump, but in no case less than 250 psi 1724 kpa to ensure no rupture or leakage through the castings at the test pressure. When starting a fire pump design, the most important item to consider is the water supply. How to calculate jockey pump capacity in fire fighting system. Cr vertical multistage centrifugal inline pumps grundfos. Pump sizing with pipeflo and flow of fluids both pipeflo and flow of fluids programs allow you to select and size a pump directly in the program. The jockey pump, an important part of a fire pump system. In this case low capacity and high pressure is needed. Anything over 20 gpm is getting excessive and approaches the flow capacity of some heads. Consulting specifying engineer power for fire pumps. If the underground piping leaks excessively, jockey pump sizing must be increased to the maximum permitted. Now, the range has been upgraded with a new, more robust generation of cr pumps cr 95, cr 125 and cr 155. It is designed to keep the pressure in the system elevated to a specific level when the system is not in use, so that the fire pump doesnt have to run all the time and the system doesnt go off randomly. Select impeller in exactly the same manner as for lineshaft type pump.
Also, remember that the election of the jockey depends of the longitude, size, type and leaks of the underground piping. The following key steps are performed when sizing a centrifugal pump. Jockey pumps are typically small multistage centrifugal pumps, and do not have to be listed or certified for fire system application. A jockey pump should be sized to make up the allowable leakage rate within 10 minutes or 3.
Apr 29, 2016 jockey pumps are small capacity pump which overrides main fire water pump electric motor and diesel. It is designed to keep the pressure in the system elevated to a specific level when the system is not in use, so that the fire pump doesnt have to run all the time and the system. Jockey pumps are typically small multistage centrifugal pumps, and do not have to. A jockey pump should be sized to make up the allowable leakage rate within. In this example we will use pipeflo, but the steps and calculations are the same in both programs. Fire pumps are normally purchased as a complete package that includes the following. A properly sized fire pump is critical to ensuring your fire sprinkler system will work appropriately and keep your building protected. Find a grundfos pump to replace old grundfos and competitor products. Find a suitable pump based on head, flow and design.
Standard for the installation of standpipes and hose systems says that the first standpipe requires 500 gpm and each additional standpipe requires 250 gpm, up to a. Pumps and pumping system bureau of energy efficiency 118 figure 6. Ac fire pump xylem applied water systems united states. To calculate pump gpm, two sizing methods are available, the standpipe method and the sprinkler area calculation. Chapter 4 fire pumps 89 program for individual systems suction piping shall be. Since the jockey pump is not required to be listed, the control valves and check valve are not required to be listed. Aug 29, 2016 a jockey pump, also known as a pressuremaintenance pump, is a small apparatus that works together with a fire pump as part of a fireprotection sprinkler system. The solution to this problem that works on paper is to install a pressure relief valve on the discharge pipe of the jockey pump. Jan 02, 2014 the national fire protection agency nfpa guidelines do not put much attention on jockey pump sizing. A jockey pump, also know as a pressure maintenance pump, maintains the pressure in the fire sprinkler system to avoid nonemergency starting of the main fire pump. Each pump is tested hydrostatically for not less than 5 minutes. The national fire protection agency nfpa guidelines do not put much attention on jockey pump sizing. For fire jockey applications desmi suggests a vertical multistage pump which can maintain a high pressure in the fire jockey tank and in the fire line, when water flow is not required.
The other is a low flow, high head jockey pump which keeps the system pressurized during normal nonfire conditions. Centrifugal pumps cloeoe order information example. About us blackmonk engineering is a professional, friendly, client focussed process engineering consultancy based on teesside at the heart of the uk process industry in north east england. Diameter refers to the opening diameter of the round outlet, where the water comes out. Mar 17, 2015 using the fire or jockey pump pump to top off the system at the fire pump s net churn and using a flow meter provides an idea of the maximum leak rate on new and existing installations for. An epumpflo profile can be used with any epumpflo pump selection application. A jockey pump, also known as a pressuremaintenance pump, is a small apparatus that works together with a fire pump as part of a fireprotection sprinkler system. Following is the most relevant text related to this, from nfpa 20. Dec 24, 2012 operating philosophy of a group of fire pump posted in industrial professionals. Drop pipe selection size of drop pipe is selected based on the capacity to be pumped.
Jockey pumps should be selected at a capacity at which to increase the system pressure to the required value in 10 minutes after sensing the leakage in. Jockey pumps in pump station design romtec utilities. Introduction to pumping stations for water supply systems. The control valves to and from the jockey pump shall be supervised butterfly. No other transfer switches are permitted in the generator feed to the fire pump. Jun 05, 2017 if youre referring to sizing the flow rate of a jockey pump as it relates to a normal leakage rate, generally we size the jockey pump flow rate to be 1% of the fire pump s rated gpm 1 gpm per 100 gpm of fire pump.
Introduction to pumping stations for water supply systems course no. One is the main fire pump which delivers large volumes of water to the fire standpipe system in case of fire. The pump guide will then show you all the metering pumps that match your criteria. Fire pump overview fire pump unit defined a fire pump is a device that provides the required water flow and pressure for a fire protection system. Jockey pump controller line terminals l1,l2,l3,gnd maximum motor horsepower wire size copper only torque motor terminals t1,t2,t3,gnd maximum motor horsepower wire size copper only torque wire size ground copper only wire size ground copper only 200208v 7. The jockey pump jp or pressure maintenance pumps pmp as. In a fully sprinklered structure with standpipes, nfpa 14 2010. Jockey pump or pressure maintenance pump is a small apparatus that works in conjuction with a fire pump as part of a fireprotection sprinkler. If you are utilizing the city water supply as the primary source for the pump, you need to make sure that an accurate city water test is used. Maintenance jockey foam concentrate pumps are not standard with the viking foampak, but can be ordered as a separate option. Hello, please, i need your comment about the operating philosophy of a group of fire pump. Protectors are preset for hallmark industries pumps, and.
The database contains all solenoiddriven metering pumps, motordriven metering pumps, process metering pumps and peristaltic pumps from prominent. Use our online pump sizing program to choose the most suitable jet or submersible well pump offered. The fire pump unit itself consists of a pump, a drive, a driver coupling connecting the two, and a base plate. A jockey pump is an important component of fire fighting system. Fire fighting how to calculate fire pump electrical driven pump diesel driven pump and jockey pump capacity in fire fighting system. Standard for the installation of stationary pumps for fire protection. Standard for the installation of stationary pumps for fire. A jockey pump, or a pressuremaintenance pump, is a small apparatus that works together with a fire pump as part of a fireprotection sprinkler system.
Descriptionfiretrol fta500 jockey pump controllers are intended for use with. The transfer of power must take place in the fire pump room. This pump has the ability to exceed rated system pressures and burst pipes. System options include test headers, flow loops, city bypass loops, jockey pumps, an array of controllers and much, much more. Jockey pumps multistage booster pumps absolute water pumps. Pvm1 pvmx1 pvm33 pvmx33 pvm64 pvmx64 pvm15 pvmx15 pvm5 pvmx5 pvm20 pvmx20 pvm45 pvmx45 pvm90 pvmx90 pvm120 pvmx120 pvm150 pvmx150 pvm10 pvmx10 pvm3 pvmx3 pvm x 60 hz the attached aurora pvm multistage pump pages include a new pump nomenclature and set of part numbers which will allow you to order pumps with a preconfigured set of product. We have been trading since 2006 but have previously gained over 12 years of experience in the process industries with companies such as ici, dupont and invista. This keeps the main fire pump from short cycling, which shortens its life span. Impeller trim diameter is designated by the last three digits of the model description impeller trim pump size dis.
One advantage these pumps have over comparably sized trash models is their low initial cost. The jockey pump shall be installed in accordance with nfpa 20. The pump shall be hydrostatically tested at a pressure of not less than one and onehalf times the. When designing or installing electrical power supplies for fire pumps and their accessories, you must apply special rules as listed in nfpa 70, the national electrical code nec, and the standard for centrifugal fire pumps cfp nfpa 20.
Fire sprinkler system pumps used in one or twofamily dwellings. With revenues of 25 billion in fy2016, our 144,000 employees serve customers in. Nov 12, 20 jockey pumps in pump stations are small, typically low horsepower, pumps that operate regularly to handle nuisance flows in a system designed for larger peak pumping rates. A jockey pump should be sized to make up the allowable leakage rate within 10 minutes or 1 gpm 3. Approvalsfiretrol jockey pump controllers are listed by underwriters laboratories, inc. The grundfos cr vertical, multistage, centrifugal inline pump family works for water supply, water treatment and almost any industrial solution including those for highpressure, hot, dangerous, flammable and aggressive liquids. If you have not created an epumpflo profile, you will be prompted to. Welcome to the internets premier pump selection service. Designing electrical systems for fire pumps since fire pumps are considered life safety equipment, they must be reliable. Company overviews goulds pumps itt goulds pumps is among the most widely recognized and respected brands in the global pump industry, serving customers in the oil and gas, mining, power generation, chemical, pulp and. Before we answer the quetion, itd better to understand what jockey pump is and what the function in fire fighting sytem. There shall be provided a pressureactuated switch having independent high and low calibrated adjustments in the controller circuit. Flow rates range from 50 to 1500 gpm with pressures up to 160 psi.
This allows the pump station to handle a very wide range of flow rates without increasing the wear on the large horsepower pumps. There shall be no pressure snubber or restrictive orifice employed within the pressure switch. Lower horsepower engines are utilized that are smaller in size and more fuelefficient. In order to use this service you must create an epumpflo profile. Calculate the volumetric flow rate, volume, time, diameter and speed of a pump. The pump manufacturer, armstrong pumps, recommends, as a rule of thumb, to size the jockey for about 1 % of the rated flow of the main fire water pump. The jockey pump is not as mundane as many engineers, contractors, and installers would. Calculating the size of jockey pump for an underground distribution. Size the primary ocpd to carry indefinitely the sum of the lockedrotor current of the fire pump and pressure. Fire fighting how to calculate fire pump and jockey pump. The overcurrent devices may be set as normally required by the code nec table 450. Browse by product family, pump design or application area. Installation and operation instructions peerless pump. It is important to choose the appropriate pump for your application based on performance and electrical requirements.
Except for no test header requirement, a jockey pump has the same basic components as the main fire pump. The pressostat connected to the jockey pump 1 should be set to. The jockey being a tap off of the fp service is common, i cannot recall a jockey. Hence a jockey pump is an important part of the fire pumps control system. Common size ratings of midship split driveline pumps available include. With 100 years of experience, aurora provides consistent, quality manufacturing and performance. Select ac fire pump is here to help make specific pump selections and give easy access to technical product data, performance curves, dimensional drawings, operational and maintenance manuals all in one easy to use tool. Generally a pump with % 3 of rated capacity min 1 gpm, % 110 of rated pressure. A jockey pump is a small pump connected to a fire sprinkler system to maintain pressure in the sprinkler pipes. Jockey pump is set such that it starts at low pressure in header and stop at high pressure to maintain the desire pressure in the network. A jockey pump is sized for a flow less than the flow to one sprinkler in order to ensure a system pressure drop. All jockey pump valves to be located as required per nfpa 20. If youre referring to sizing the flow rate of a jockey pump as it relates to a normal leakage rate, generally we size the jockey pump flow rate to be 1% of the fire pumps rated gpm 1 gpm per 100 gpm of fire pump.
Here you can calculate, how much water or something else a pump can handle theoretically. Pump sizes are determined by their flow capacity in gallons per minute gpm. Feb 17, 2015 fire fighting pump room with fire pump, jockey pump and diesel pump installation details in hindi duration. The jockey pump is not as mundane as many engineers, contractors, and installers would have you believe. To prevent these false starts and maintain the fire pumps life expectancy, small pressure maintenance or jockey pumps like the one pictured are installed to maintain a relatively constant pressure on the fire protection system. The supply or feeder conductors from the generator to the fire pump controller must be sized to carry 125% of the total fire pump motor, pressure maintenance motor and 100% of the associated equipment. If a transformer supplies an electric fire pump motor, size it at least 125% of the sum of the fire pump and pressure maintenance pump s motor loads, and 100% of the ampere rating of the fire pump s accessory equipment 695. Mar 28, 2002 of greater concern is the ability of a positive displacement regenerative turbine pump to generate very high pressure if left running. The pump shall be hydrostatically tested and run tested prior to shipment. Pump controller is a smart protector, for 230v deep well pump with builtin control box internal capacitor. Absolute water pumps jockey pumps are top of the line, always guaranteed to support any anti prevention methods you use. Pumps with a size of 3000 gpm or more are often referred to as industrial pumps. Fire pump sizing the estimated performance of the fire pump between 100% and 150% of rated flow can be calculated using the following formula.
In order to correctly size a pump for an application we must have a working knowledge of the following factors. Positive displacement pumps are those in which energy is imparted to the liquid in a fixed displacement volume, such as a casing or a cylinder, by the rotary motion of gears. Submersible pumps frequently require smaller drop pipe than do line shaft pumps since the full area of the pipe is used to deliver water to the surface. Automatic fire pump systems normally utilize two pumps. Operating philosophy of a group of fire pump industrial. View online or download flowserve pump user instructions. Schneider electric is the global specialist in energy management and automation. Standards for sizing and selection of fire pumps are governed by nfpa 20. This is to ensure that if a firesprinkler is activated, there will be a pressure drop, which will be sensed by the fire pumps automatic controller, which will cause the fire pump to start. Peerless pump company indianapolis, in 462077026 horizontal split case fire pumps electric motor or diesel engine driven section 1520 page 1. Aurora is a reknowned supplier of pumps and pump systems used in a variety of commercial, fire suppression, hvac, industrial, marine, oil and gas and municipalwater treatment markets and applications throughout the world.
405 876 902 199 1602 169 1222 1201 1621 1056 359 1353 762 364 840 818 930 1281 1675 270 536 1046 657 1455 1408 78 464 510 767 97 629 1214 26 1023 313 1231