The EDJ series is a packaged fire pump set, generally an automatic fire water supply system. It consists of a main pump (driven by an electrical motor), a standby pump (driven by a diesel engine), and a jockey pump. This model comes equipped with a separate controller or one that is attached to the skid. The package also contains discharge valves, a common header, and essential accessories.
Generally, the pipeline network's pressure is maintained between low pressure P1 and high pressure P2. When the pressure drops below P1, the pressure maintaining pump starts automatically and stops once pressure reaches P2.
If the pressure continues to drop to minimum pressure P3 due to high water consumption, the Electric Pump starts automatically. If the mains supply fails or the electric pump fails, the pressure will drop to P4, triggering the Diesel Pump set to start automatically. Both electric and diesel pumps are usually stopped manually after human judgment.
Frequently Asked Questions
Q1: What components are included in the EDJ fire pump set?
The set includes a main electric motor pump, a standby diesel engine pump, a jockey pump, a controller (separate or skid-attached), discharge valves, and a common header.
Q2: How does the system handle power failures?
If the main power is off or the electric pump fails, the diesel pump set will start automatically when the pressure drops to the ultimate threshold (P4) to ensure continuous water supply.
Q3: What is the typical lead time for an order?
Typically, diesel engine pumps require 35 working days, while bare shaft pumps take approximately 25 working days.
Q4: What certifications do your fire pumps hold?
Our fire pumps are designed to meet international standards including UL, FM, NFPA20, CE, and ISO.
Q5: How is the product protected during international shipping?
We use heavy-duty plywood cases specifically designed for ocean transport to ensure the pumps arrive in perfect condition.
Q6: Do you provide spare parts after the warranty period?
Yes, we maintain a stock of spare parts and can typically ship them within 1 to 2 weeks if required.
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