As the name implies, the fire-fighting pipeline is a pipeline system established for fire protection. Due to special requirements, the thickness and material of fire-fighting pipelines have special requirements, and red paint is sprayed to transport fire-fighting water. Fire-fighting pipelines are pipeline materials that are used in fire protection, fire-fighting equipment and equipment, fire-fighting water, gas, or other media. Because fire-fighting pipelines are often in a static state, they also require stringent piping requirements. The pipelines need pressure resistance, corrosion resistance, and high temperature resistance. What are the fire pipe installation standards? What is the price of firefighting pipe installation ? Let's look at it together.
The role of fire pipes
Fire-fighting pipelines are used to transport fire-fighting water. Fire-fighting tanks or water in pools are introduced into the fire hydrants in buildings, and the water in fire-fighting tanks or water pools is introduced into the automatic sprinkler pipes in buildings. In the spout of the automatic sprinkler system, there is a glass ball on the water spout and bursts at a high temperature. The water in the pipe is pressurized and is ejected from the spout.
As the name implies, the fire-fighting pipeline is a pipeline system established for fire protection. Due to special requirements, the thickness and material of fire-fighting pipelines have special requirements, and red paint is sprayed to transport fire-fighting water. Fire-fighting pipelines are pipeline materials that are used in fire protection, fire-fighting equipment and equipment, fire-fighting water, gas, or other media.
Because fire-fighting pipelines are often in a static state, they also require stringent piping requirements. The pipelines need pressure resistance, corrosion resistance, and high temperature resistance.
Fire pipe installation standards
1.Throttle device: In high-level firefighting systems, the flow of low-level sprinkler heads and fire hydrants is too large, which can be balanced by devices such as decompression orifice plates or throttling tubes. The decompression orifice plate shall be set on a horizontal pipe section with a diameter of not less than 50mm. The diameter of the orifice shall not be less than 50% of the diameter of the installation pipe segment. The orifice plate shall be installed on the straight pipe section on the downstream side of the turning point of the water flow, and the distance from the bending pipe. Should not be less than twice the diameter of the pipe section. When using throttling pipes, the length should not be less than 1m.
2. Installation of alarm valve accessories: It should be done before delivery. The retarder is installed on the closed sprinkler automatic sprinkler system. It is a facility to prevent false alarms. It can be installed according to the instructions and assembly drawings, and it should be installed on the signal pipeline between the alarm valve and the hydraulic bell. Hydraulic bells are installed near the alarm valve. The pipe connected with the alarm valve should be galvanized steel pipe.
3. Fire hydrant fittings: should be carried out before handing over. Fire hoses should be folded and placed on a rack or rolled up and tightly packed in a box. The fire hose should be placed on the inside of the box. Self-rescue guns and hoses should be placed on the card or at the bottom of the box. Fire hoses and water guns, quick connector connection, generally with 14 # wire tied two, each not less than two laps, when using clamps, add a lead in the inside. When there is an electronically controlled button, care should be taken to cooperate with the electrical professional.
Fire pipe classification
Copper tube
Copper pipes are also called copper pipes. One type of non-ferrous metal tube is a pressed and drawn seamless tube. Copper pipes have strong, corrosion-resistant characteristics, and become the first choice for modern contractors to install water pipes, heating and cooling pipes in all residential commercial housing.
Alloy tube
Alloy pipe is a kind of seamless steel pipe, its performance is much higher than that of general seamless steel pipe, because this type of steel pipe contains more Cr, its high temperature resistance, low temperature resistance, corrosion resistance performance is other Steel pipe can not match, so the alloy pipe is widely used in petroleum, aerospace, chemical, electric power, boiler, military and other industries.
Composite pipe
Composite pipe is a pipe composed of two or more materials. It is based on metal pipe, inner and outer welded polyethylene, crosslinked polyethylene and other non-metal materials, with metal pipe and non-metal pipe. The advantages of metal pipe.
Plastic pipe
As an important part of chemical building materials, plastic pipes are widely accepted by customers for their superior performance, hygiene, environmental protection, and low consumption. They mainly include UPVC drainage pipes, UPVC water supply pipes, aluminum-plastic composite pipes, and polyethylene (PE). Water supply pipe these kinds.
Fire pipe installation precautions
Before installing the pipeline, you must select a suitable installation area and prepare it for installation. For the scope of installation, fire-fighting pipelines are generally applicable to the installation of indoor fire-fighting automatic sprinkler systems and fire hydrant systems for civil and general industrial buildings.
Regarding construction preparation, the most important thing is to choose the right construction materials. First of all, for the fire-fighting spray pipe, it is necessary to choose according to the design requirements. Generally, galvanized carbon steel pipe and pipe fittings are selected. The reasons include that the pipe has the advantages of uniform galvanizing inside and outside, no rust, no fly burr, etc., and can greatly prolong the service life of the device when used. Second, we must choose the right fire hydrant system pipe. For fire hydrants, carbon steel pipes or seamless steel pipes are generally selected. It is better not to have bends, rust, heavy skins, or irregularities. Of course, users can choose according to their own conditions, but they must meet the design requirements. The third is the selection of the main components of the alarm valve, action valve, control valve, retarder, water flow indicator, and water pump combiner. It is necessary to maintain complete accessories and casting rules, and the design of each accessory complies with relevant standards. Fourth, select the appropriate sprinkler head, its specifications, type, operating temperature should meet the design requirements, and to ensure that its appearance rules, complete threading. Fifth, the choice of fire hydrant cabinet can not be ignored, to maintain the box Founder, complete box accessories, but also has closed flexible, close tight, sealed packing intact, a product factory certificate and other characteristics.
Fire pipe installation price
There are two calculation methods for the installation price of firefighting pipelines; one is calculated by meters and the other is calculated by squares.
Galvanized steel pipe DN150 1 600.00
Galvanized steel pipe DN100 1 Article 465.00
Galvanized steel pipe DN80 1 strip 355.00
Galvanized steel pipe DN65 1 315.00
Galvanized steel pipe DN32 1 strip 180.00
Galvanized steel pipe DN25 1 Article 125.00
Galvanized steel hangers and load-bearing brackets DN150 1 45.00
Hanger and load-bearing bracket for galvanized steel pipe DN100 1 40.00
Hanger and load-bearing bracket for galvanized steel pipe DN80 1 40.00
Galvanized steel pipe hanger and load-bearing bracket DN65 1 35.00
Hanging bar and bearing bracket for galvanized steel pipe DN50 1 33.00
Hanger and load-bearing bracket for galvanized steel pipe DN40 1 33.00
Hanger and load-bearing bracket for galvanized steel pipe DN32 1 30.00
Note: The above prices are for reference only.
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