The Code for Construction and Acceptance of Automatic Sprinkler Fire Extinguishing Systems (GB 5026 1-2005) stipulates that the installation of fire-fighting pipes shall be carried out with reference to the 03S402 standard drawing of pipe supports and hangers. When installing fire pipe supports, it is necessary to rely on the installation height and spacing of the supports. This is calculated according to the size of the pipe diameter. Generally, each pipe is 6 meters long, and at least two fixed brackets should be installed. The bracket should calculate the angle steel size according to the pipe diameter.

The height and spacing of fire pipe supports shall meet the design requirements and construction specifications. The size and type of support should be determined according to the actual situation on site. Holes on the bracket should be drilled by drilling machine, and electric and gas welding are strictly prohibited. The bolt diameter of aperture ratio hole on the bracket should be1~ 2mm; The burr on the bracket should be polished off in time, and its end should be chamfered. ?

The weld on the bracket should be full and free of slag inclusion. Except for the part buried in concrete, antirust paint shall be painted in time for protection. When installing stents, rows of stents must be paid off before installation, and ensure the same level of stents. Riser support generally requires1.5 ~1.8m.. The storey height is more than 5m, and two pipe clamps are arranged on average. The installation and positioning of main support and riser support should consider the beautiful layout, and the maximum spacing of pipeline support should meet the requirements in the following table. ?

Extended data:

Fire pipe supports are generally made of angle steel, and the finished supports need to be painted with antirust paint. According to the different installation positions, there are two forms of fire-fighting support, namely, U-shaped support and L-shaped support. U-shaped support, also known as anti-sway support, is widely used in pipes above DN 100. The following is the schematic diagram of the on-site installation of the fire pipe support.

The installation height and spacing of fire pipe supports shall be determined according to the design requirements and fire protection specifications. The size and shape of the fire pipe support should be determined according to the construction site conditions. The larger the pipe diameter, the larger the angle iron used. It is forbidden to use gas welding to open holes in the fire tube bracket. The diameter of aperture ratio screw is 1-2mm.

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HowNet-Code for construction and acceptance of automatic sprinkler system, national standard of People's Republic of China (PRC).