The installation bottom elevation of fire equipment box shall meet the requirements, generally 0.3m.
The pipeline shall be installed horizontally and vertically.
Before the installation of submersible sewage pump system, the garbage in the water collecting well shall be cleaned to prevent blocking the water pump.
6.
Two 45 º elbows or 90 º elbows with a bending radius less than 4 times the pipe diameter should be used for the connection between the discharge pipe and the riser, otherwise the pipe is easy to be blocked.
When using clamp connection, the clamp shall be tightened without gap.
5.
Flame cutting method cannot be used when drilling water pipe support.
The aluminum frame of concealed fire hydrant box shall be exposed to the wall.
6.
When paying attention to the position of the platform, the minimum traffic distance shall be 1.2m.
Explosion proof gate valve shall be installed where the water pipe passes through the civil air defense door, and the installation distance of explosion-proof gate valve is 200mm from the wall.
4.
2.
The flexible sleeve shall be installed with flexible material and flange, and the cover end shall be installed on the inner side of the wall.
2.
3.
Flexible waterproof casing shall be installed in areas with earthquake fortification, bearing vibration or pipeline expansion deformation and waterproof requirements.
Installation of water pipe support 1.
Pressure drainage pipes are mostly internally and externally coated epoxy composite pipes.
The pipeline entering the sewage sealing device shall avoid butterfly valve, which is easy to be blocked at the valve.
4.
3.
The valve must be tested for strength and tightness, and the unqualified shall not be installed.
The supports and hangers shall be fixed to the load-bearing structure.
Installation of fire water pipe and fire protection system 1.
Anti corrosion treatment shall be done at the wire connection of water pipe.
11.
Installation of submersible sewage pump system 1.
Fire pump house system installation 1.
6.
4.
Check valves and other valves with direction requirements shall be installed in the direction indicated by the arrow.
4.
Install fire extinguisher boxes of various sizes and specifications at corresponding positions according to the requirements of the drawings.
It is necessary to distinguish the working pressure of valves in different systems to avoid installation errors.
6.
After the water pipe is installed through the wall, it needs to be blocked.
8.
Fire hydrant and other accessories shall be installed according to the design specifications, and the installation position shall be determined with Fas system to meet the requirements of both parties.
The opening angle of fire hydrant box door shall not be less than 120 ° 2.
Rubber insulation pad shall be added between metal water pipe and support.
6.
Before placing an order for installing the fire extinguisher box, check with the decoration discipline whether the reserved installation position is sufficient.
4.
The gradient of gravity drainage shall be well controlled, especially when embedded on the civil structure, whether it can meet the gradient requirements shall be calculated.
When the main pump stops running, the standby pump shall be able to switch automatically.
Before masonry of sewage pump house, transportation channel shall be reserved according to sewage closed lifting device.
5.
5.
2.
2.
2.
Otherwise, the wall shall be thickened.
5.
Installation of drainage system of sewage pump house 1.
8.
Select the pipe material according to the design requirements, and do not mix water supply and drainage pipes.
2.
After prefabrication, all supports shall be treated with hot galvanizing.
According to the requirements of the drawing, the corresponding position of the fire-fighting equipment box shall be.
4.
The exposed part of water pump cable shall be laid in trunking or steel pipe.
The fire hydrant box shall be provided with eye-catching signs.
3.
5.
The foundation height of sewage closed lifting device shall be calculated according to the actual slope requirements, and shall be combined with the design blueprint and manufacturer’s detailed drawing.
When the wire connection mode is adopted, the wire connection shall be subject to anti-corrosion treatment.
Support shall be added at the connection and terminal of water pipe valve, elbow and tee.
5.
During the commissioning of submersible sewage pump, check whether all valves are in the correct state, especially whether the valves passing through the civil air defense door and going out of the room are opened.
2.
3.
The gravity drainage system of sewage pump house shall try to avoid the number of elbows, which is easy to cause pipe blockage.
The convenience of operation and maintenance shall be considered during the installation of water pump, and sufficient installation and operation space shall be reserved for concealed valves in the subway.
Fire extinguisher box installation 1.
When installing the water pipe passing through the civil air defense door, the center of the water pipe shall coincide with the center of the embedded casing of the civil air defense door.
9.
7.
Casing shall be set when water pipe passes through wall and floor, and the outer diameter of the pipe shall be 20mm larger than the outer diameter of the pipe.
The installation quantity of fire extinguishers shall meet the design and specification requirements.
3.
4.
3.
Installation and plugging of water pipe through wall casing 1.
The spacing of water pipe supports shall meet the design and specification requirements.
When installing the valve, it should be noted that the working pressure is greater than 1.6mp.
Flanges and clamps shall be tightened, and their tightness shall be checked one by one to prevent splashing everywhere during drainage.
5.
If there is infringement, please contact to delete! 。.
4.
The direction of fire water pipe inlet pipe shall be clear.
2.
Rubber flexible joints shall be added at the outlet of pressure drainage pipeline from the structure.
2.
Supports shall be added at both ends of the valve.
5.
Installation of fire hydrant box 1.
Timely and firmly close the temporary opening of the pipeline.
Installation of water pipe and explosion-proof gate valve at the civil air defense door 1.
When the flexible casing passes through the wall, the wall thickness shall not be less than 300.
The center of hydrant mouth shall be 1.1m from the ground, and the allowable deviation shall be ± 20mm4.
8.
Under the condition of meeting the design requirements, the installation position of each valve shall be convenient for operation, and the convenience of personnel passage shall be considered in the pipeline layout.
Clean the sundries in the pipe cavity before pipe installation.
3.
The civil air defense door cannot be opened by itself.
Select materials according to the drawing requirements and determine the connection mode according to the pipe diameter (generally small pipe wire connection, large pipe clamp connection and valve flange connection).
Installation of fire-fighting equipment box 1.
Installation of pressure drainage pipe and drainage system 1.
Support shall be added at the corner of inlet pipe.
The inlet and outlet pipe diameter of the water pump shall meet the design requirements.
Obvious “fire extinguisher box” signs shall be set on the surface of the fire extinguisher box.
7.
4.
3.
4.
5.
1.
2.
The surface of the fire-fighting equipment box shall be clearly marked with “fire-fighting equipment box”.
4.
6.
6.
Rubber soft joints shall be installed at the water inlet and outlet of the water pump, and rubber pads shall be installed at the base.
6.
5.
Before installation, carefully check whether the model and specification meet the design requirements, check whether the valve stem and disc are flexible, whether there is jamming and irregularity, and the disc must be closed tightly.
For flange connected valves, the bolt direction on the same flange is the same.
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2.
When the water pump equipment enters the site, it is necessary to check its power, head and other parameters, and seat it according to the number to avoid wrong installation position.
When passing through the double air defense door, the explosion-proof gate valve shall be installed inside the outdoor civil air defense door, 200mm away from the outdoor civil air defense door.
12.
The fire water supply system is equipped with main and standby pumps.
Flexible clamps shall be used in areas with design requirements such as sections.
When the oxygen coating on the surface falls off and is damaged, anti-corrosion treatment shall be done.
Read the system drawing and manufacturer’s installation drawing, design the installation path of fire system in advance and determine the foundation position in combination with the room pattern of fire pump house.
Pressure test shall be carried out after installation.
7.
Valve installation 1.
3.
3.
Metal hose shall be installed at the expansion joint, explosion-proof gate valve shall be installed at the place passing through the civil air defense door, and rubber flexible joint shall be installed at the place out of the structure.
When crossing the floor, the lower end shall be flush with the floor, and the top shall be 20mm higher than the finish.
3.
The thickness of galvanized layer shall meet the design requirements (generally not less than 80 mm) μ m) , smooth surface.
3.
6.
When the design and specification requirements are met, the valve shall be installed in a position convenient for operation as far as possible.
3.
Water pipe supports shall be prefabricated.
10.
The valve test requirements shall be implemented in accordance with relevant specifications.
Exhaust valve shall be set at the highest point of the system.
The distance between fire hydrant box and wall shall meet the door opening requirements.
2.
7.
