Different categories and characteristics of fire pumps and fire pump groups
Fire pumps used in different fields have different professional characteristics. For example, fire pumps in the ordinary sense are installed on professional fire engines or other special firefighting facilities for the purpose of conveying fire-fighting water and foam solutions. Pump. A non-powered fire pump, as its name implies, is a fire pump that does not have a power source. It uses a rotating impeller to transfer liquids.
Vehicle fire pumps and marine fire pumps are non-power fire pumps. The biggest difference between them is that the vehicle fire pump is installed on the chassis of the vehicle, while the marine fire pump is installed on the tools of the ship and other water operations. Fire pumps for engineering are the most common and are used in fire hydrant systems and foam fire extinguishing systems. Water supply fire pump is a fire pump that is specifically designed to provide fire water supply engineering. The Foam Night Fire Pump is a dedicated fire pump designed to deliver foam fire extinguishing agents. The deep well fire pump and submersible fire pump are dedicated fire pumps for deep well pump and submersible pump projects, respectively.
In addition, there is a fire pump unit with a power source. It is mainly composed of four main parts, a group of fire pumps, a power source that provides power for the fire pump group, a control cabinet that controls the fire pump group, and some other auxiliary devices. The fire pump group also has many categories with different professional characteristics. For example, an ordinary fire pump group consisting mainly of ordinary fire pumps, a water supply fire pump group consisting mainly of water supply fire pumps, a deep well fire pump group consisting of deep well fire pumps, and a submersible fire pump group consisting of submersible fire pumps, etc.
Galvanized Roller Shutter Door
Using advanced hot-dip galvanized material , precision roll forming production process, polyurethane foam that free of hydrofluorocarbon inside door, light weight, high strength, appearance nice. The doors have advantages of tamper anti-theft , noise isolation thermal insulation and corrosion resistance;the doors are widely used in shops, garages, houses, supermarkets, warehouses and industrial plants,etc.
Depending on the characteristics of the buildings,we can choose interior, exterior and intermediate three different installation ways, doors stay in the upper part of door after rolling up , this could save garage space, and also could keep the garage clean and beautiful by prevent the mud, rain and snow ,etc going into the garage.
Galvanized Roller Shutter Door,Standard Galvanized Roller Shutter Door,Automatic Galvanized Roller Shutter Door,Steel Roller Shutter Safe Door
Shenzhen Hongfa Automatic Door Co., Ltd. , https://www.hfautodoors.com