Powerful Diesel Engine Fire Fighting Pump Set Fire Protection Emergency Water Supply

Product Overview

The EDJ series is a complete set of fire pump units, typically forming an automatic fire water supply system. This system comprises the following core components:

• Main pump: driven by an efficient electric motor
• Standby pump: equipped with diesel engine drive
• Pipeline pressure compensating pump: used to maintain the pressure of the pipeline network
• control system

Two controller configuration schemes are provided:

1. Standalone controller
   • Flexible installation
   • Easy to maintain
2. Integrated controller
   • Installed on skid-mounted equipment
   • Small space occupation

Equipment Accessories

The complete equipment set includes the following accessories:

• discharge valve
• Common manifold
• pressure gauge
• flow meter
• Various types of connecting flanges

Working Principle

Basic operating mechanism

The system monitors the pressure of the pipeline network in real-time through pressure sensors to maintain the pressure within a set range. The specific workflow is as follows:

1. Normal operating state
   • The pressure of the pipeline network is maintained between P1 (low pressure) and P2 (high pressure)
   • The pressure maintenance pump automatically starts and stops according to pressure changes
2. Pressure drop treatment
   • When the pressure drops to P1, the pressure maintenance pump automatically starts
   • After the pressure rises back to P2, the pressure maintenance pump automatically stops
3. High-flow demand response
   • When the pressure further decreases to P3 (the lowest pressure):
   • Automatic start of electric pump
   • The pressure rebounds to Pw (water supply pressure)
   • Meet the demand for fire-fighting water
4. Response to power failure
   • In the event of a main power supply interruption or electric pump malfunction:
   • The pressure continues to decrease until reaching P4 (ultimate pressure)
   • Automatic start of diesel pump
   • The pressure rebounds to Pw
   • Restoration of fire water supply