Fire pump calculations

NFPA 20 Diesel+Electric+Jockey+Controller Packaged Fire pump Introduction XBC series Diesel engine fire-fighting pump is a new-style fire fighting equipment, which is developed upon the fitted fire fighting pumps (single stage single suction type, singlestage dualsuction type and sectional multistage type), can be divided into several series. The equipment has a wide range of pressure and temperature and can be used for almost every occasion necessary for fire fighting purpose.The diesel engine fitted with the equipment is an excellent product domestic or imported, features good starting performance, strong overload capacity, compact structure, easy maintenance and use and high degree of automation. XBD Series Electricity Fuel Centrifugal Fire Fighting Water Pump is the new middle and low pressure fire fighting product, which researched by our company according to the latest standard(GB 6425-1998) of fire fighting pump in our country, its motor and fire pump is connected directly, which simplified the middle transmitting structure, and strengthen operation's stability. Its building area is less 30% than common horizontal fire pump, the shaft seal adopts hard alloy mechanical seal without leakage, its inlet and outlet can be installed at any position and any direction like valve, its noise is low, maintenance is convenient, shake is little and so on. XBD series include four structural types to meet the different requirements of users, including vertical single-stage fire pump, vertical multistage fire pump, horizontal single-stage fire pump and horizontal multistage fire pump. Name Electric or diesel engine driven centrifugal fire fighting water pump Pumped medium Water or other liquid Fire pump flow 1.5~1550m3/h Fire pump head 16~380m Inlet & Outlet diameter DN25~600mm Fire Pump material Cast iron/Stainless steel Speed 980~3500rpm Diesel / motor power 0.75~580kW Diesel cylinder numbers 1/2/4/6/8 Straing method 12/24V battery starter for diesel engine Motor Electric 110~525V Medium temperature -15~+120ºC 1.Electric pump: kinds of end suction pump, split case pump, multistage pump.made of cast iron, stainless steel. Impeller can be bronze. 5.5-710 kw 0.3-1.2 mpa 10-420 l/s (150-6600GPM 2.Diesel pump: Flow is the same with electric pump. It connects the pump set with High elastic coupling or universal joint.It also includes water tank, oil tank, fans, control screen etc. 7.0-810 kw 0.3-1.2 mpa 10-420 l/s (150-6600GPM) 3.Jockey pump: horizontal or vertical, small flow, head is higher than electric or diesel pump 4.Control panel: control the pumps automatically with overload, overcurrent protection 5.Accessories: check valve, gate valve, pressure tank (0.6mpa, 1.0mpa, 1.6mpa) Pressure gauge, pressure sensors, import and export common pipe, soft joints, flanges and common base.

500GPM 750GPM 1000GPM 8BAR Fire Fighting Pump Set Introdution Fire pump system is made of Electric Pump + Diesel Engine Pump+Jockey Pump+Accessories Operation: 1 Duty(electric pump ) + 1 stand by(diesel engine ) + 1 Jockey Capacity: 100GPM, 150GPM, 200GPM, 300GPM, 400GPM, 500GPM, 750GPM, 1000GPM, 1250GPM...GPM with Pressure 4Bar, 5bar, 6Bar, 10Bar, 15Bar... Bar. Application:Equipment for warehouses, docks, airports, petrochemical, power plants, liquefied gas, textiles, ships, oil tankers and other occasions of a fire service. Working Conditions :Altitude ≤ 1000m; Ambient temperature: +5 °C ~ +40 °C; Relative humidity: Features 1)Safe and reliable 2)Easy installation 3)Easy to operation 4)International standard 5)Use foreign advanced technology EDJ Fire Fighting Pump System's Components A brief introduction of EDJ Fire Pump System's components Diesel Engine Fire Pump Have the standard of National Fire Protection Association Standard NFPA20 "centrifugal fire pump installation" and other standards. The diesel engine fire pump is equipped with the characters of good and strong overload capacity, compact structure, easy to maintain and high degree of automation. Altitude ≤ 1000m; Ambient temperature: +5 °C ~ +40 °C; Relative humidity: ≤ 90% Electric Fire Pump Apply to fire protection system, pressurized water pipes, industrial and urban water supply and drainage, water pressure high-rise building, long-distancewater, heating, bathrooms, boilers and well-being of the water cycle, pressurized water and air-conditioning cooling systems and other equipment supporting occasions. Flow: 1~300L/s; Head: 0.15~1.6MPa; Power: 0.75~160/6P kW; Speed: 960~2900r/min; Working Pressure: ≤1.6MPa; Medium Temperature: ≤90°c; Material: HT200 (Bronze ally impeller) Jockey Pump The combination of advanced international

Etc.Sizing a Fire PumpA fire pump must be designed properly to handle the most demanding fire sprinkler system. Incorrectly sized fire pumps can result in several problems like:Improper system function.Undeveloped spray patterns from sprinklers.Insufficient pressure to hose valves.Too much pressure, causing components to burst and break open while operating.Hence, the first step of fire pump sizing is to identify the most demanding system. The standpipe is the most demanding system in most commercial buildings. The standpipe system design and the fire pump flow rate requirements are given in NFPA 14.Next, the required pressure must be calculated. Pressure requirement can be calculated as (Demand at the top + static losses+ pipe friction losses – source water pressure). Other requirements are the size of the room where the fire pump will be installed.If the sprinkler load is the most demanding then the fire pump must be designed based on the hydraulic demand of the sprinkler system.Once the above parameters are known, a fire pump can be selected. NFPA Fire Protection Handbook provides enough guidelines for selecting the required fire pump.Characteristics of a Fire PumpThe main characteristic feature that a fire pump should have are listed below:Pump internals must be made from non-corrosive materials.The pump selection must be based on the required NPSH value, flow, and head demand to avoid cavitation.All fire pumps must have adequate power reserves.Join us on Telegram