Working principle of semi-solid foam fire extinguishing device:
When the PY semi-fixed (portable) foam fire extinguishing device is extinguishing a fire, the pipe thread interfaces at both ends of the pipeline proportional mixer are connected to the fire hose and connected to the pressure water source. When there is water with a pressure of not less than 0.6MPa and a high pressure When flowing through the nozzle of the proportional mixer at a speed, due to the diffusion effect of the lateral movement of the jet particles, a vacuum (negative pressure) is formed in the chamber of the proportional mixer, so the foam liquid in the foam liquid storage tank passes through the suction under the action of atmospheric pressure. The liquid pipe enters the mixer and mixes with pressure water, finally reaching a certain proportion of mixed liquid. When a mixture with a certain pressure flows to the spray gun, a certain amount of air will be sucked in due to the performance of the spray gun. Let the foam mixture foam. Thus achieving the effect of foam fire extinguishing.
Product Description
The composition of semi-fixed (portable) foam fire extinguishing device:
PY semi-fixed (portable) foam fire extinguishing device is also called a foam truck and a cart-type foam fire extinguishing device. It is mainly composed of a foam liquid storage tank, a spray gun, a proportional mixer, a water belt, and a cart chassis; it is a new type of mobile Foam fire extinguishing device is quick, easy to operate and highly reliable. Used to extinguish Class A, B, and C non-water-soluble liquid fires. It is widely used in municipal residential areas, factories and mines, oil depots, chemical industry departments, heat treatment workshops, gas stations and other places.
Technical parameters of PY series semi-fixed (portable) foam fire extinguishing device produced by Shandong Dongyue Hoisting and Fire Fighting Equipment Manufacturing Co., Ltd.
1: Rated inlet pressure of proportional mixer: 0.6-0.8Mpa
2: Rated flow rate of foam mixture: 8 or 4L/s
3: Mixing ratio: 3 or 6%
4: Import and export: KY65 internal buckle pipe tooth interface
5: Foam liquid capacity: according to user requirements, generally 200L, 300L, 400L, 500L, 700L
The specific models of PY series products are: PY4-200 (mixing ratio 3%), PY4-300 (mixing ratio 3%), PY4-400 (mixing ratio 3%), PY4-500 (mixing ratio 3%), PY8-300 (mixing ratio 3% or 6%), PY8-400 (mixing ratio 3% or 6%), PY8-500 (mixing ratio 3% or 6%), PY8-700 (mixing ratio 3% or 6%).
6: Recommended configuration: 2 fire hoses (type 65*20M long), 1 PQ foam gun.
Certifications
Audited Supplier 
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