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), stand by pump (driven by 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, common header, and accessories.
Generally the pipeline network's pressure is between the low pressure P1 and the high pressure P2. When the pressure is lower than P1, the pressure maintaining pump will start automatically and not stop until the pressure rises gradually to P2.
Due to the pipeline network's leakage, its pressure will drop to P1 gradually, and then the pressure maintaining pump will start automatically again. With such a repeated process, the pipeline network's pressure is maintained between P1 and P2 all the time.
When the water consumption increases a lot and drops to the minimum pressure P3, the electric pump will start automatically and the pressure will rise to Pw. If the mains supply is power-off or the electric pump fails, the pressure will continue to drop from P3 to the ultimate pressure P4. Then the diesel pump set will start automatically, and the pressure will rise to Pw to meet the need for fire water supply.
1. Delivery
Delivery time will be on time as the contract. Usually, 35 working days for diesel engine pump, and 25 working days for bare shaft pump.
2. Warranty
12 months for the pump body, 3 months for the main working parts.
3. Package
We use plywood cases to pack our pumps, which are durable for ocean transport.
4. Quality Control
We test our pumps before delivery and follow up on working conditions every three months after the pump is put into use.
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Frequently Asked Questions
What components are included in the EDJ fire pump set?
The EDJ set includes a main electric motor pump, a standby diesel engine pump, a jockey pump, controllers, discharge valves, and a common header skid.
What international standards do these pumps comply with?
Our fire pump systems are designed to meet UL, FM, NFPA20, CE, and ISO standards for fire protection safety.
How does the system handle a power failure?
If the mains power is off or the electric pump fails, the system detects a pressure drop to the P4 level and automatically starts the diesel engine pump to maintain water supply.
What is the typical lead time for an order?
Standard delivery is approximately 35 working days for diesel engine sets and 25 working days for bare shaft pumps.
What materials are used for the pump construction?
The pump casings are typically made of durable Ductile Iron, and impellers are made of high-quality Bronze to ensure corrosion resistance and longevity.
Can the system be used for high-rise buildings?
Yes, with a maximum head capability of over 150m and high-pressure performance, it is ideal for building fire-fighting applications.
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