Single fire pumps are a type of equipment designed specifically for firefighting systems and are made of stainless steel. Based on the centrifugal principle, single fire pumps use a motor to drive the impeller to rotate at high speed, generating strong water flow pressure, quickly delivering water to the fire scene to achieve rapid fire extinguishing.

Why Choose an Explosion-Proof Fire Pump for Hazardous Environments?

In environments where flammable gases, vapors, or dust are present, safety isn't just important-it's critical. Whether in petrochemical plants, oil depots, or chemical warehouses, fire protection systems must be designed to prevent ignition of any kind. That's where explosion-proof fire pumps come into play. But what makes them essential in these high-risk zones?

What Is an Explosion-Proof Fire Pump?

An explosion-proof fire pump is a specialized firefighting unit equipped with an EX-rated motor, designed to contain any sparks or heat within the motor housing. Unlike standard pumps, these units are built to operate safely in ATEX or IECEx-certified hazardous locations without triggering ignition.

Key Benefits of EX Fire Pumps

Enhanced Safety: Prevents ignition of flammable gases or vapors, reducing risk in explosive atmospheres.
Compliance with International Standards: Meets stringent certifications for hazardous area operation (ATEX, IECEx, GB3836).
Durable Construction: Available in stainless steel or cast iron to resist corrosion and prolong pump life in demanding environments.
Efficient Impeller Design: Uses closed or semi-open impellers for optimal flow and head performance.

Common Applications

Chemical storage plants and refineries
Offshore oil and gas platforms
Gas filling stations and fuel depots
Paint manufacturing and solvent plants
Flammable material warehouses

Why Impeller Type Matters in Hazardous Areas

The impeller is the heart of the pump. In explosion-risk zones, closed impellers are typically used due to their high efficiency and ability to handle clean liquids. However, semi-open impellers may be suitable for applications where small particles are present. Choosing the right impeller helps ensure steady pressure, minimal vibration, and safe fluid transfer during emergencies.

Explosion-Proof Motor: What to Look For

The motor should comply with national or international EX standards. Our single fire pump units use YE3 series explosion-proof motors with the following features:

Power range: 0.75–110 kW
Efficiency rating: 70% – 85%
Voltage compatibility: 380V / 415V / 220V, 50Hz
High-temperature resistance and sealed structure

Recommended Model

Our Single Fire Pump with Explosion-Proof Motor is engineered for maximum reliability and safety. It features a rugged pump casing, customizable impeller options, and a certified EX motor to meet your site's exact requirements.

Looking for a Safe Fire Pump Solution?

If your facility handles flammable or combustible materials, don't risk using a standard motor. Choose a certified explosion-proof pump that's built to protect both your assets and your personnel.

Contact us today to get a customized quote or learn more about explosion-proof pump applications.

Phone & WhatsApp: +86-18705703682
Email: sales@pumpsinstruments.net

Product Advantages

1.Strong Performance
The impeller of single fire pumps is made of high-strength stainless steel with a tensile strength of over 500MPa, a rated flow of 8.4m³/h to 260m³/h, a maximum head of 126m, a stable motor speed, and a rated voltage of 380V, which can effectively respond to fire conditions.

2.Precise Adaptation
The inlet and outlet pipe sizes of single fire pumps are 50mm to 200mm, and the pump body and motor use high-precision couplings (coaxiality error within 0.1mm), matching power 2.2KW to 11KW, which is suitable for the layout of various fire protection facilities.

3.Durable
The shell of single fire pumps is high-quality cast aluminum (hardness above 90HB), and the mechanical seal components are made of wear-resistant materials (friction coefficient of about 0.1). The wear of the main components is about 3% after 8000 hours of operation.

NO	model numbers	Rated flow rate	Rated head	piping	Matching power	rotation speed	rated voltage
NO	model numbers	m3/h	m	mm	KW	r/min	V
1	QY8.4-40-2.2	8.4	40	50	2.2	2860	380
2	QY15-26-2.2	15	26	50
3	QY25-17-2.2	25	17	63
4	QY40-12-2.2	40	12	76
5	QY65-7-2.2	65	7	100
6	QY100-4.5-2.2	100	4.5	150
7	QY15-36-3	15	36	50	3
8	QY25-26-3	25	26	63
9	QY40-16-3	40	16	76
10	QY65-10-3	65	10	100
11	QY100-6-3	100	6	150
12	QY160-4-3	160	4	150
13	QY260-3.5-4	260	3.5	200	4
14	QY200-4.5-4	200	4.5	150
15	QY65-14-4	65	14	100
16	QY40-21-4	40	21	76
17	QY25-32-4	25	32	63
18	QY25-38/2-4	25	38	63
19	QY12.5-50-4	12.5	50	50
20	QY12.5-72/4-4	12.5	72	50
21	QY25-45/3-5.5	25	45	63	5.5
22	QY10-78/3-5.5	10	78	50
23	QY200-8-5.5	200	8	150
24	QY260-6-5.5	260	6	200
25	QY65-18-5.5	65	18	100
26	QY40-28-5.5	40	28	76
27	QY25-40-5.5	25	40	63
28	QY18-64/3-5.5	18	64	63
29	QY65-28-7.5	65	28	100	7.5
30	QY40-38-7.5	40	38	76
31	QY25-50-7.5	25	50	63
32	QY200-10-7.5	200	10	150
33	QY10-100/4-7.5	10	110	50
34	QY260-8-7.5	260	8	200
35	QY18-126/6-11	18	126	63	11
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Single Fire Pumps

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