Working Principle of Fire Hydrant
Home » Structure and Working Principle of Fire Hydrant

Structure and Working Principle of Fire Hydrant

Fire hydrant, also known as outdoor fire hydrant, trụ cứu hỏa this is a type of pole used to install on the road surface, along the sidewalk, the purpose is to collect water, suck up water to serve the fire protection industry to develop Extinguishing the fire, the fire is quick and convenient. Fire hydrants have a variety of sizes DN65 – DN100, types of 3 doors and 2 doors, and are fitted with flanges, connecting as joints with pipes…

In the fire protection system, fire hydrants are always an indispensable product. This product is quite diverse in types but the most commonly used is still the 3-door fire hydrant. This product possesses many outstanding advantages over other fire hydrant products.

Structure of 3 Doors Fire Pillars

It is not difficult for us to see 3-door fire hydrant products on the street in densely populated areas, sidewalks, or markets. Usually we will only see the floating pillar on the road surface. But in fact, the structure of this product also has an underground pillar below the road surface.

The most popular 3-door fire hydrant is Fuxeon 3-door fire hydrant from China.

First, about the structure of the floating part of the 3-door fire hydrant, chếch thép according to the design standards, this pillar is made up of 6 different parts. That is: protective cover, threaded silver, cylinder body, vane, drain hole, valve, etc. Each part takes on a different role and function to ensure the product works efficiently in cases of fire incidents.

For 3-door fire hydrant products, the protective cover will be installed according to 3 pipe body branches to perform the function of protecting the pole body when not in use and flexibly disassembled when it is necessary to connect to the water pipeline. serving fire fighting activities.

In that case, the underground part of the 3-door fire hydrant is considered a very important part of the structure, directly affecting the ability to conduct reserve water to the cylinder body. The underground pillar is made up of 5 main parts, including: the valve arm to open the underground cylinder valve, the throat valve, the throat connection, the column body, the connector to connect to the underground pillar. The correct standard installation of this pillar plays an important role to conduct the source water for the best fire fighting activities.

Upper body fire hydrant

Standards for Installation of 3-Door Fire Pillars

The 3-door fire hydrant product belongs to the fire fighting system, this is not a civil product but a product installed by competent authorities in fire prevention and fighting activities. Therefore, the installation of this type of pillar also needs to be ensured according to the standards.

For installation standards of 3-door fire hydrants, it must comply with TCVN 6379: 1998 and be approved by the fire prevention and fighting agency. There are many standards for the installation of fire hydrants in terms of the technical requirements of each part. For example: the diameter of the stagnant water discharge hole of the water cylinder body is not less than 8mm or the outer thread of the coupling with the water intake column of the underground pillar is a cylindrical pipe thread “Om 6” with a tolerance of 8g according to…

In addition to the standard of installation parts for 3-door fire hydrants, in general, when installing, it is necessary to ensure that the pole is in an upright position; Install poles at least 5 meters from the house wall and no more than 2.5 meters from the edge of the sidewalk.

The installation of 3-door fire hydrants according to standards is one of the leading factors for this product to best serve fire fighting activities. At the same time to minimize the possible incidents.

Specifications of 3-Door Fire Pillar

The 3-door fire hydrant products that want to work well need to meet the following specific technical specifications:

Working pressure: 10at

Cylinder inner diameter: 100mm

Lifting height of valve: 30mm

Number of revolutions when fully open the valve: 2 revolutions

Large throat: 110mm

Small throat 68mm

Bolt hole center diameter: 280mm

Bolt hole diameter: 23mm

Floating height above ground: 750mm

Cylinder weight:150kg

It can be said that fire prevention and fighting activities are now a very urgent matter. Therefore, products such as 3-door fire hydrants need to be fully installed to ensure that no unfortunate incidents can occur.

Zaraki Kenpachi