Fire Pump

Introduction

A fire pump is an integral component of total fire protection system . A fire protection system at a facility may include automatic sprinkler system standpipes, hose stations , and/ or fire hydrants.
The purpose of a fire pump is to provide or enhance the water supply pressure from public mains, suction tanks, gravity / elevated tanks, lakes, and other bodies of water .

A fire pump

is an integral component of total fire protection system . A fire protection system at a facility may include automatic sprinkler system standpipes, hose stations ,and/ or fire hydrants .The pump , driver , controller and auxiliary equipment should be UL listed (under writers laboratories) and FM Approved (factory mutual) to ensure that the equipment has been thoroughly examined and appropriately tested for fire pump installations. NFPA 20, standard for the installation of centrifugal fire pumps require the use of listed equipment, or approved equipment, or both. The two most common types of fire pumps are the horizontal – shaft centrifugal pump and the vertical – shaft turbine pump.

Jockey pumps

maintain pressure in the underground , compensate for leakage , and reduce the number of times the fire pump starts . jockey pumps are not needed on all fire pump installation, however , they are usually found were there is an extensive underground piping system . they are equipped with gauges, control valves, and a check valve.

Listed and Approved

The pump , driver , controller and auxiliary equipment should be UL listed (underwriters laboratories)and / or FM Approved (factory mutual) to ensure that the equipment has been thoroughly examined and appropriately tasted for fire pump installations.
NFPA 20 , standard for the installation of centrifugal fire pumps require the use of listed equipment , or approved equipment , or both . under the tasting and listening approval system , the manufacturer is responsible for providing a listed or approval is a listed or approved pump that will perform satisfactorily when installed in conformance with NFPA 20 individual responsible for installing the pump and auxiliary equipment must also follow the provisions of NFPA 20.

Types and Characteristics

The two most common types of fire pumps are the horizontal –shaft centrifugal pump and the vertical – shaft turbine pump. The horizontal shaft centrifugal pump is one in which the pressure is developed by impelling water outward from a center of rotation . the impeller is mounted on horizontal shaft . the vertical shaft centrifugal pump is similar , but the impeller is mounted on a vertical shaft.

2013.5.29_10.52.2_9989-1

2014-Phone-445

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