4 Inch Fire Water Monitor

The core features of the 4-inch fire monitor are "large flow rate through wide caliber, versatility for multiple scenarios, and flexible operation to ensure personnel safety." With its efficient firefighting capability, durable structural design, and broad adaptability, it has become the "main equipment" in industrial firefighting systems for tackling large-scale fires.

● Interface Type：Flange connection (mainstream)
● Working Pressure (MPa)：0.6 - 1.6
● Flow Rate (L/min)：2000 - 5000
● Main Body Material：Aluminum alloy / Stainless steel
● Sealing Material：
—Static seal: Nitrile rubber
—Dynamic seal: Fluororubber
● Rotation Mode：Horizontal rotation
● OEM Service：Accepted
● Delivery Terms：FOB, CFR, CIF, EXW
● Payment Mode：T/T, L/C, PayPal, Western Union

Product category:

Fixed fire monitor

Enterprise Atlas:

Email:

linhaifeng117@gmail.com

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Product Details

Product Formation

The 4-inch fire monitor is a large-caliber, high-flow fixed/mobile firefighting jet device primarily used for long-distance, large-scale fire suppression or high-temperature zone cooling in industrial and civilian scenarios. Its core feature is the 4-inch (approximately 100mm) large-caliber water inlet interface, capable of delivering substantial water flow or foam mixture to meet high-intensity firefighting demands.

The 4-inch fire monitor is a type of firefighting equipment (Fire Monitor) that controls or extinguishes fires and isolates heat radiation by projecting high-pressure water streams or foam. The "4-inch" designation refers to the nominal diameter of its inlet (approximately 101.6mm), distinguishing it from smaller models like 2.5-inch (65mm) or 3-inch (80mm). Designed for high flow rate, long-range projection, and extensive coverage, it is particularly suited for high-efficiency firefighting scenarios in petrochemical plants, warehouses, power facilities, airports, ports, and similar settings.

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Other Classifed Products：

Fire Hose Categories, Fire Sprinkler System, Fire Protection Valve , Fire Hose Reel&Cabinet , Fire Foam Equipment，Fire Nozzle and Fire Monitor , Fire Hydrant , UL/FM Fire Fighting Equipment , Brass Valve Categories , Fire Extinguisher Series .

Product Features

The 4-inch fire monitor features large caliber, high flow rate, and strong coverage as its core advantages. It is specifically designed for industrial-grade high-intensity fire fighting, with the following characteristics:

Extra-large caliber design: The inlet has a nominal diameter of 4 inches (DN100, approximately 101.6mm), far exceeding conventional water cannons with 2.5 inches (65mm) or 3 inches (80mm), capable of delivering a massive water flow of 2000-5000L/min (under pressure), instantly forming a high-intensity water curtain or water column.
Long-range coverage: In direct stream mode, the horizontal range reaches 60-80 meters (under 1.0MPa pressure). Although the spray mode reduces the range to 30-50 meters, the atomized particles cover an area 3-5 times larger, enabling rapid cooling of large-scale thermal radiation zones (such as tank fires or chemical installations).
Comparative advantages: Under the same pressure, the flow rate is about 40%-60% higher than that of 3-inch water cannons, with a range extended by 20-30 meters, making it particularly suitable for quickly suppressing large-scale fires involving oil, chemicals, or stacked materials.
DC/Spray One-Touch Switching: By rotating the nozzle or replacing the spray tip, switch between a solid stream (high penetration, ideal for long-range firefighting against solid or deep-seated fires) and a spray pattern (wide coverage, rapid heat absorption, suitable for cooling liquid fires or isolating electrical fires) without changing equipment.
Water-Foam Dual Compatibility: Some models feature an integrated foam proportioner, allowing direct connection to a foam tank to discharge film-forming or alcohol-resistant foam, effectively tackling polar fires like oil or alcohol (scenarios where water alone is ineffective).
High-strength main structure: The cannon body is made of aluminum alloy (lightweight) or 304/316L stainless steel (corrosion-resistant) through casting/welding, capable of withstanding high-pressure water flow impact up to 1.6MPa, resistant to deformation and fatigue.

Product Parameter

Parameter Category	Detailed Description
Interface Type	Flange connection (mainstream)
Working Pressure (MPa)	0.6 - 1.6
Flow Rate (L/min)	2000 - 5000
Main Body Material	Gun body: Aluminum alloy / Stainless steel
Sealing Material	Static seal: Nitrile rubber
Sealing Material	Dynamic seal: Fluororubber
Rotation Mode	Horizontal rotation
Operating Temperature Range	-20℃~+55℃ (For low - temperature, optional electric heat tracing device is required; -40℃~+55℃ optional insulation layer can be installed)
Storage Temperature Range	-40℃~+70℃ (Avoid direct sunlight, humidity ≤ 85%RH)

Instructions For Use

FAQ

Q: Can you accept sample order?

A: Yes, we accept samples with little and reasonable charge.But need customer pay sample fees and transport fees first.

Q: What is your payment terms?
A: Payment supports T/T, L/C, etc.

Q: How can l get my order?
A: We will send you the goods by UPS,DHL,FedEx,Oversea Shipment or other forwarder, all with tracking number.

Q: Why choose us?
A： With over 15 years of experience in the fire protection industry, our company has professional technical personnel and many well-known partners in the domestic market. We offer favorable prices and guarantee quality, having passed multiple certifications!

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With more than 15 years of experience serving clients, we have developed extensive expertise and in-depth industry knowledge, enabling us to deliver reliable and effective solutions tailored to your requirements.
We provide professional technical support and customized service offerings. Our committed technical team is available to assist you with product consultation, installation guidance, and comprehensive after-sales support whenever necessary.
At Sheng Feng Fire, our professionals are dedicated to helping you select the most suitable products based on your specific needs.
Please do not hesitate to contact us for further information！