PY Series Trolley-Type Foam Fire Extinguishing Device PY4/500-PY8/700 Fire Hydrant and Fire Monitor Manufacturer Quality Assurance Complete Inspection Reports Full Range of Models Low Prices Technical Parameters Comprehensive Images

Working Principle: When fire extinguishing is required, connect the foam nozzle and proportioner with a fire hose. The inlet end of the proportioner is connected to the fire hose and supplied with pressurized water. When the pressurized water flows through the proportioner’s nozzle at high speed, a negative pressure is created inside the proportioner chamber. The foam concentrate in the storage tank is drawn into the proportioner through the suction pipe under atmospheric pressure, mixing with the pressurized water at a predetermined ratio to form a foam solution. When the pressurized foam solution passes through the foam nozzle, it draws in air, causing the foam solution to expand and form foam, which is then sprayed to cover the surface of the burning liquid and extinguish the fire. 

PY Series Trolley-Type Foam Fire Extinguishing Device PY4/500-PY8/700 Application Scope: Suitable for extinguishing general Class B fires, such as oil products and grease fires, as well as Class A fires. However, it cannot extinguish water-soluble flammable and combustible liquid fires in Class B, such as alcohols, esters, ethers, ketones, etc. It is also not suitable for electrical equipment fires or Class C and Class D fires.

Our company is a manufacturer specializing in the production and sales of firefighting equipment, fire protection facilities, and firefighting devices.
Main products include: fire monitors, foam monitors, electrically controlled fire monitors, SP40AZK fully-equipped fire monitors, SP60AZK freeze-resistant fire monitors, mobile fire monitors, impact-resistant pressure-regulating fire hydrants, quick pressure-regulating fire hydrants, pressure-type foam proportioning systems, mobile foam fire extinguishing devices, air foam generators, MPS foam hydrants, and more.
With 20 years of experience in producing firefighting products, our above-ground and underground fire hydrants have achieved high quality and high standards over the past decade. All finished fire hydrants undergo strict quality inspections!! We welcome friends from all industries to visit our company for guidance, discussions, and business cooperation. Recognize excellence! Your patronage is welcome!