At EMACO GLOBAL, we are committed to providing advanced fire protection technologies that safeguard human lives, industrial facilities, and critical infrastructure. Among our most innovative firefighting solutions is the High Expansion Foam Generator, a system specifically designed for total flooding applications that require large volumes of foam within a short time.

This foam generator is widely recognized as one of the most efficient tools for combating large-scale fire hazards in confined or semi-enclosed areas such as basements, tunnels, cable ducts, warehouses, chemical storage facilities, and underground mines. With its water turbine and aerofoil fan-driven design, the EMACO High Expansion Foam Generator combines precision engineering, robust construction, and operational reliability to deliver unmatched firefighting performance.

What is a High Expansion Foam Generator?

A high-expansion foam generator is a specialized firefighting device that produces vast amounts of high-expansion foam using a combination of water pressure, air, and foam concentrate. Unlike conventional foam systems that generate low- or medium-expansion foams, this advanced generator creates foam at expansion ratios ranging from 250:1 to 1000:1, depending on the model and configuration.

This high-expansion foam has a unique ability to rapidly fill large volumes of space, cutting off oxygen supply to the fire, cooling surfaces, and preventing the spread of toxic smoke and heat. It is ideally suited for total flooding applications where quick and complete coverage is essential to prevent catastrophic fire damage.

Working Principle of EMACO Foam Generator

The EMACO foam generator is powered by a water-driven turbine and an aerofoil fan that induces air into the foam solution. Here’s how it works:

1. Water Supply & Foam Concentrate: A pressurized water supply mixed with foam concentrate is delivered to the generator.
2. Turbine Activation: The water drives the turbine, which in turn powers the high-speed fan.
3. Air Induction: The fan draws in ambient air, mixing it with the foam solution.
4. Foam Generation: The mixture passes through a specially designed mesh or net, producing large volumes of high-expansion foam.
5. Foam Discharge: The foam is discharged into the protected space, quickly filling the area and suppressing fire by cooling and oxygen displacement.

Technical Specifications of EMACO High Expansion Foam Generator

At EMACO GLOBAL, our High Expansion Foam Generators are available in different models, each designed to meet specific industrial fire protection requirements. All models are engineered for durability, performance, and flexibility in demanding environments. They are portable in design, easy to deploy, and powered solely by water pressure, making them highly reliable even in emergency conditions.

The EN0317-100P model is a compact and fully portable version. It operates effectively at an inlet pressure of 3.5 to 7 bar and produces foam expansion ratios in the range of 250:1 to 800:1, making it suitable for moderate to large-scale fire protection needs.

For applications requiring higher capacity, the EN0317-300(FRP) model is available. Built with Fiber Reinforced Plastic (FRP) for excellent corrosion resistance, this version works with an inlet pressure between 4.0 and 10 bar and provides a total water flow of 180 to 227 liters per minute. It generates foam expansion ratios ranging from 425:1 to 1000:1, ensuring maximum efficiency in enclosed spaces such as tunnels, warehouses, and mines.

Another robust option is the EN0317-300P(SS) model, constructed from Stainless Steel for superior strength and durability. Like the FRP version, it operates with or without system induction at an inlet pressure of 4.0 to 10 bar and delivers a water flow rate of 180 to 227 liters per minute. Its foam expansion ratio falls between 400:1 and 960:1, offering strong performance in industrial environments where longevity and resistance to harsh conditions are essential.

Key Highlights:

• Models Available: EN0317-100P, EN0317-300(FRP), EN0317-300P(SS)
• Inlet Pressure Range: 3.5 to 10 bar, depending on model
• Water Flow Rate: 180–227 L/min for 300-series models
• Foam Expansion Ratios: From 250:1 up to 1000:1
• Material Options: Fiber Reinforced Plastic (FRP) and Stainless Steel (SS) for corrosion resistance and durability
• Portability: Designed for quick installation and ease of use in emergencies

Applications of High Expansion Foam Generator

The versatility of the EMACO High Expansion Foam Generator makes it a preferred choice across multiple industries.

1. Basements and Underground Mines

High expansion foam rapidly fills enclosed spaces, displacing toxic gases and suppressing fires in areas where conventional suppression systems are less effective.

2. Warehouses and Storage Facilities

In facilities storing flammable goods or hazardous chemicals, the foam generator provides rapid coverage to prevent fire escalation.

3. Cable Ducts and Tunnels

The foam penetrates narrow ducts and long tunnels, providing cooling and effective suppression while minimizing damage to critical infrastructure.

4. Power Plants and Transformer Rooms

Protects sensitive equipment from fire exposure while also offering smoke control and cooling.

5. Marine and Offshore Installations

Onboard ships and oil platforms, high expansion foam is essential for total flooding of machinery spaces and enclosed compartments exposed to hydrocarbon fire risks.

6. Chemical and Petrochemical Plants

Provides a reliable solution for containing volatile chemical fires, preventing escalation, and ensuring worker safety.

Advantages of EMACO High Expansion Foam Generator

• Rapid Fire Suppression: Produces large volumes of foam in seconds, covering extensive areas quickly.
• Smoke Control: Aids in rapid smoke extraction and provides positive pressure ventilation.
• Environmental Safety: Uses eco-friendly foam concentrates compatible with international fire codes.
• Corrosion Resistance: FRP and Stainless Steel models are built to withstand harsh and corrosive industrial environments.
• Energy Efficient: Operates using water pressure, eliminating the need for external power.
• Operational Reliability: Requires minimal maintenance and delivers consistent performance under demanding conditions.
• Flexible Deployment: Portable design allows quick installation in different locations without complex infrastructure.

Installation and Operation Guidelines

For optimal performance, EMACO recommends the following installation and operation practices for foam generators:

1. Proper Positioning: Install the generator at strategic points to allow uniform foam distribution across the protected volume.
2. Water Supply: Ensure a reliable and pressurized water supply (3.5–10 bar) for consistent foam output.
3. Foam Concentrate: Use EMACO-approved high-expansion foam concentrates for maximum efficiency.
4. Ventilation Considerations: Account for smoke extraction and pressure ventilation during system design.
5. Hydraulic Testing: Conduct routine hydraulic flow and pressure tests to confirm readiness.

Maintenance of Foam Generators

To ensure long service life and dependable performance, regular inspection and maintenance are essential:

• Quarterly Inspections: Check for corrosion, wear, and mechanical damage.
• Cleaning: Remove dirt, dust, and chemical deposits from fan blades and mesh screens.
• Testing: Perform system flow and foam expansion tests periodically.
• Replacement of Damaged Parts: Immediately replace worn or damaged components.
• Storage: Keep portable foam generators in clean, dry, and corrosion-free environments.

Why Choose EMACO GLOBAL for Foam Generators?

Choosing EMACO GLOBAL means partnering with a company committed to quality, innovation, and global fire safety standards. Here’s why clients worldwide trust us:

• Proven Engineering Expertise: Designed by fire safety specialists with decades of industry experience.
• Global Certifications: Manufactured to comply with NFPA, UL, and international firefighting standards.
• Versatility in Design: Multiple models tailored for varied industrial and commercial needs.
• Durability: Built with high-quality materials to withstand extreme environments.
• After-Sales Support: Dedicated technical support for installation, training, and spare parts.

Frequently Asked Questions (FAQs)

1. What is the foam expansion ratio of a High Expansion Foam Generator?
   Depending on the model, EMACO foam generators offer expansion ratios ranging from 250:1 to 1000:1, providing flexibility for different hazard levels.
2. Where is a High Expansion Foam Generator most commonly used?
   It is widely used in basements, tunnels, mines, warehouses, chemical storage areas, and marine environments where rapid space filling is required.
3. Does the foam generator require external power?
   No. It is powered by a water turbine and fan mechanisms, requiring only a pressurized water supply and foam concentrate.
4. How often should foam generators be maintained?
   Quarterly inspections are recommended, along with periodic performance tests to ensure system readiness.
5. Can the foam generator be customized?
   Yes. EMACO offers FRP and Stainless Steel options, along with variations in induction systems, to meet specific industrial requirements.

The EMACO High Expansion Foam Generator is a critical tool for industries where fire hazards pose significant risks to life and infrastructure. With its ability to deliver large volumes of foam in a short period, it provides unmatched protection in high-risk environments. Engineered with precision, built with durability, and backed by international standards, our foam generator ensures safety, reliability, and peace of mind.

At EMACO GLOBAL, we are committed to protecting your world with world-class fire safety solutions.