Recently asked questions in Kochi mmd and Class 2 Numerical solutions

Search

08 April 2020

133.Mechanical Foam extinguisher

April 08, 2020 Posted by AK No comments

Capacity - 9 Ltr
Body - Welded steel, zinc coated with brass neck
Nozzle - Aluminium alloy
To prevent accidental discharge a swivel safety guard is provided which also when in position holds the spring loaded plunger valve ti open which vents the extinguisher thus prevents dribbling from the nozzle.

CONTENTS
Water - 8.25 Ltr
Liquid air foam concentrate in plastic bag - 0.85 Ltr
CO2 capsule - 0.074 Kg at 53 bar

The extinguisher contains an outer shell and a CO2 cartridge inside. The
Foam solution (a mixture of 97% Water and 3% Aqueous Film Forming Foam Solution) is
stored in the outer shell and discharged with pressure created by the piercing of CO2 cartridge.
The solution is carried upwards through the dip tube and is aerated at the discharge nozzle to
foam. The shell along with the containers is hydraulically tested before fitting.

Produces 72 Ltr foam
Jet 7 m
Duration 50 sec




  


0 comments:

Post a Comment