High Capacity 4000 GPM 6-11 Bar Skid Mounted Fire Pump System with Double Suction Pump for Global B2B Procurement

Customization:	Available
Max.Head:	6-11 Bar
Max.Capacity:	4000 Gpm

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Basic Information

Model NO.

250-470(I)

Driving Type

Diesel

Material

Cast Iron

Structure

Single-stage Pump

Power

Diesel

Type

Fire Pump

Media

Water

Theory

Centrifugal Pump

Certification

CCCF

Speed

1500rpm

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Product Description

EDJ Packaged Fire Pump System
Consists of a main electric pump (driven by electric motor), standby diesel pump (driven by diesel engine), and a multistage jockey pump. Pumps are assembled with both discharge and suction manifolds, wired to the control system and mounted on a common steel base. The product has a compact design and small footprint, saving space in the pump room. After simply connecting the water and power supplies on site, the unit is immediately operational.

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Model Identification

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Key Advantages

Dual-Power Drive System

Equipped with both diesel engine and electric motor drives, ensuring reliable operation even during power outages. Automatic or manual switch between power sources for uninterrupted firefighting.

Easy Installation

Plug-and-play unit. After connecting water and power on-site, it's immediately operational. No material loss due to on-site assembly.

NFPA20 Compliance

Complies with NFPA20 standards for fire protection systems. Fully performance tested at ISO9001 certified facility prior to shipment.

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Product Parameters

Item No.	FLOW Q		HEAD H	SPEED	Motor Driven		Diesel Driven
Item No.	US.GPM	m3/h	Bar	RPM	Model	HP	Model	HP
1	1000	227	7	3000	100-260(I)	100	100-260(I)	125
2	1250	284	8	3000	100-320(I)	150	100-320(I)	150
3	1500	341	9	3000	125-300(I)A	220	125-300(I)A	233
4	2000	455	10	1500	150-570(I)	270	150-570(I)	320
5	3000	682	12	1500	200-670	544	200-670	550
6	4000	909	11	1500	250-580	544	250-580	687

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Working Principle

The packaged system includes diesel pump, electric pump, jockey pump, manifolds, and control sensors.

Jockey Pump: Maintains pipeline pressure between P1 and P2 set points. It handles minor leakages to minimize main pump cycling.
Electric Pump: Starts automatically if pressure drops to P3 when water consumption exceeds jockey pump capacity.
Diesel Pump: Starts automatically if the pressure continues to drop to P4 (due to power failure or electric pump failure).

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Accessories & Spare Parts

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Working Conditions

Motor Operation

√ Altitude: ≤1000m
√ Temperature: +5℃~+40℃
√ Relative Humidity: ≤90%

Diesel Operation

√ Temperature: +5℃~+40℃
√ Humidity: ≤90%
√ Longitudinal Inclination: <10°

*Note: Power should be adjusted if altitude exceeds 1000m or temperatures exceed normal range based on manufacturer data.

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Frequently Asked Questions

What components are included in the EDJ fire pump system?

The system includes a main electric motor pump, a standby diesel engine pump, a multistage jockey pump, discharge/suction manifolds, and an integrated control system.

Does this fire pump system comply with international standards?

Yes, the system is designed to comply with NFPA20 standards for fire protection systems, covering rated points, flow points, and power requirements.

How does the automatic switch function during a fire emergency?

The jockey pump maintains base pressure. If pressure drops, the electric pump starts. If power fails or pressure continues to drop, the diesel pump starts automatically to ensure water supply.

Is the system difficult to install on-site?

Not at all. The system is skid-mounted and pre-wired. Once on-site, you simply need to connect the water supply and power supply to make it operational.

What are the environmental limits for optimal performance?

Optimal performance is achieved at altitudes below 1000m, temperatures between +5℃ to +40℃, and relative humidity below 90%. Performance adjustments are needed beyond these limits.

What materials are used for the pump construction?

Standard materials include high-quality cast iron for the pump structure, with impellers available in bronze, brass, or stainless steel depending on requirements.