Products Description
overview
The mechanically pumped proportioning mixer represents the latest addition to the series of balanced-pressure proportioning mixers.
It primarily consists of a water turbine, a coupling, a foam concentrate pump, a strainer, a safety valve, control valves, piping, and various accessories. The water turbine and the foam concentrate pump are interconnected via a coupling and mounted on a common base, facilitating convenient integrated handling and installation.
Key Component
Typical system includes:
Foam concentrate storage tank
Foam concentrate pump
Pressure balancing (back-pressure) valve
Ratio controller / proportioner
Piping and control valves
Products Parameters
| Model | Inelt/Outlet Size | Working Pressurre | Flow Rate | Foam Ratio |
|
PHP32
|
DN100
|
0.6-1.6 Mpa | 8-32 L/S | 3-3.9% |
|
PHP48
|
DN150
|
8-48 L/S | ||
|
PHP66
|
8-66 L/S | |||
|
PHP80
|
DN200
|
8-80 L/S | ||
|
PHP100
|
8-100 L/S | |||
|
PHP120
|
8-120 L/S | |||
|
PHP135
|
8-135 L/S | |||
|
PHP160
|
8-160 L/S | |||
|
PHP200
|
DN250
|
8-200 L/S | ||
|
PHP250
|
DN300
|
8-250 L/S | ||
|
PHP300
|
8-300 L/S |
FAQ
Q: What is a Balanced Pressure Foam Proportioning System?
Balanced Pressure Foam Proportioning System is a firefighting system that mixes foam concentrate with water at a precise ratio by maintaining equal pressure between the foam concentrate and the water supply. This ensures accurate and consistent foam generation regardless of flow rate changes.
Q: How does the system work?
The system operates by:
Using a foam pump or bladder tank to supply foam concentrate
Maintaining equal pressure on both foam concentrate and water lines
Injecting foam concentrate into the water stream through a proportioner
Delivering a pre-mixed foam solution to discharge devices like monitors or sprinklers
Q: What are the main components?
Typical components include:
Foam concentrate storage tank (bladder tank or atmospheric tank)
Foam pump (in pump-based systems)
Pressure regulating valve
Foam proportioner (ratio controller)
Water supply system
Control valves and piping
Q: What types of balanced pressure systems are available?
There are mainly two types:
Bladder Tank Balanced Pressure System
Pump Balanced Pressure System
Both ensure accurate proportioning but differ in how foam concentrate is delivered.
Q: What is the typical foam proportioning ratio?
Common ratios include:
1%
3%
6%
The ratio depends on the type of foam concentrate and fire hazard.