Production introduction
foinbo® Balanced Pressure Foam Proportioning Systems are high-reliability fire suppression solutions designed to deliver consistent foam-water mixtures for Class A, B, and liquid fuel fires in industrial, petrochemical, and commercial facilities. Built with dual independent electric and diesel drive systems, these units ensure uninterrupted operation even during power outages or emergency scenarios. Featuring a balanced pressure proportioning mechanism, they inject foam concentrate from atmospheric storage tanks into the main water line at a precise 3~3.9% mixing ratio, regardless of fluctuations in water flow or pressure. Available in models ranging from PHP32 to PHP250, with DN100 to DN300 inlet/outlet connections, these systems support mixed liquid flow rates from 8~250 L/S at a working pressure of 1.2 MPa, making them suitable for both small-scale and large-scale fire suppression applications.
The core advantage of these systems lies in their balanced pressure technology and dual-power redundancy. When a fire occurs, the foam pump delivers concentrate to a balancing valve, which automatically adjusts to match the water line pressure, ensuring a stable mixing ratio without manual intervention. The parallel electric and diesel drive systems provide seamless backup: if the electric motor fails or power is lost, the diesel engine takes over immediately, maintaining foam supply to downstream devices such as foam generators, foam guns, and foam monitors. This design eliminates downtime and ensures the system remains operational in all conditions, from routine power failures to complex industrial emergencies. The modular construction also simplifies installation and maintenance, with clear access to key components for inspection and servicing.
Products Parameters
| Model | Inlet/Outlet Diameter | Working Pressure (MPa) | Rated Foam Solution Flow (L/S) | Foam Solution Flow Range (L/S) | Proportioning Ratio (%) |
|---|---|---|---|---|---|
| PHP32 | DN100 | 1.2 | 32 | 8~32 | 3~3.9 |
| PHP48 | DN150 | 1.2 | 48 | 8~48 | 3~3.9 |
| PHP66 | DN150 | 1.2 | 66 | 8~66 | 3~3.9 |
| PHP80 | DN200 | 1.2 | 80 | 8~80 | 3~3.9 |
| PHP100 | DN200 | 1.2 | 100 | 8~100 | 3~3.9 |
| PHP120 | DN200 | 1.2 | 120 | 8~120 | 3~3.9 |
| PHP135 | DN200 | 1.2 | 135 | 8~135 | 3~3.9 |
| PHP160 | DN200 | 1.2 | 160 | 8~160 | 3~3.9 |
| PHP200 | DN250 | 1.2 | 200 | 8~200 | 3~3.9 |
| PHP250 | DN300 | 1.2 | 250 | 8~250 | 3~3.9 |
Application Scenarios Detail
- Petrochemical & Refinery Facilities: These systems provide reliable foam suppression for oil tanks, processing units, and storage yards. The dual-power design ensures operation during power outages, while the balanced proportioning delivers consistent foam mixtures for flammable liquid fires.
- Industrial Warehouses & Logistics Centers: For large storage facilities with high fire risks, the systems support multiple foam devices simultaneously, covering large areas with stable foam supply and mixing ratios.
- Airports & Transportation Hubs: In aircraft hangars and fuel storage areas, the diesel backup system ensures foam supply even during power failures, protecting high-value assets from liquid fuel fires.
Products Description
FAQ
Q: How does the balanced pressure proportioning mechanism ensure a consistent mixing ratio?
A: The balancing valve automatically matches foam concentrate pressure to the water line pressure, maintaining a stable 3~3.9% mixing ratio regardless of water flow fluctuations.
Q: What happens if the electric motor fails during operation?
A: The integrated diesel engine backup system activates automatically, taking over foam pump operation to ensure continuous foam supply to downstream devices.
Q: What flow rate ranges are available for these systems?
A: Models range from PHP32 to PHP250, supporting mixed liquid flow rates from 8~32 L/S to 8~250 L/S, with corresponding DN100 to DN300 connections.
Q: Can these systems be used with different types of foam concentrates?
A: Yes, they are compatible with standard aqueous film-forming foam (AFFF) and alcohol-resistant (AR-AFFF) concentrates for various liquid fuel fire applications.
Q: What maintenance is required for the dual-power systems?
A: Routine checks include testing the electric motor and diesel engine, inspecting the balancing valve, and verifying foam concentrate levels to ensure reliable operation.