Foam hydrant box

1 overview

Foam hydrant box is a new type of low
expansion foam fixed fire extinguishing device.It can spray low-expansion air
foam to extinguish class B fires caused by petroleum products, and class A
fires caused by general solid materials such as wood and textiles;Or simply
spray pressurized water to extinguish class A fires

Product standard: GB 20031-2005 general
technical conditions for foam extinguishing systems and components.

2 application scope

It is usually used in tunnels, underground
garages, gas stations, power plants and other places suitable for self-rescue,
as well as places not suitable for the installation of large fixed fire equipment.

3 of

It is mainly composed of box body, fire
hose reel, foam liquid (water forming film) box, proportioning mixer, foam gun,
fire button and pipe fittings.

4 working principle

The pressure water flow provided by the
special fire fighting pipe network or other equipment passes through the
proportioner, in which it mixes with the foam liquid inhaled in a certain
proportion to form the foam mixture;Then it is sprayed out by the foam gun to
form a low-expansion foam covering the combustor to extinguish the fire.