Everyone must be relatively unfamiliar with the pipeline. Although it is always visible in the family, it is not always understood. The standard pipeline projects for pipeline acceptance include gas pipelines, water supply and drainage pipelines, air pipelines, etc. The construction quality of these pipelines has a direct impact on our daily lives and must be accepted with care. What are the rules for pipeline installation? What are the requirements for the installation and acceptance of pipeline engineering?
What are the rules for the installation of pipelines?
1. The pipeline project shall be installed according to the requirements of the households. After the completion of the pipeline project, it shall be pressure tested and qualified for inspection before other decoration works can be carried out.
2. The quality of selected pipes and fittings shall comply with the provisions of the current national standards.
3, the installation of the pipeline must be horizontal and vertical. The drainage pipe must be open.
4, the installation of a variety of valve positions should be correct, easy to use and maintenance.
5. After all the joints are tested by water pressure, there must be no seepage or water leakage at the connection between the valve and the pipeline.
6, galvanized pipe end of the interface thread must have eight teeth, the pipe must have five teeth, there must be no blast of tooth, the raw tape must be more than 5 laps in order to take over the tube 2 tight, can not be back in the opposite direction Hinge. After installation, hook nails should be fixed in time. There must be no loosening between pipes and fittings or valves.
7. Plastic (PVC) pipes and fittings shall be installed strictly in accordance with the product specification.
8, water heaters (electric water heaters) should be installed before the water valve.
9. The hot and cold water joints of the face washer should be installed below the face washer, with cold water on the right and hot water on the left.
10. The outlet of the bathtub should be aligned with the falling water pipe, and be sealed. It is forbidden to connect with a plastic hose. The shower faucet should be installed on the same side of the water outlet, with cold water on the right, hot water on the left, and the faucet in a correct position with a bowl-shaped shield close to the wall.
What are the requirements for pipeline project acceptance?
1. Check whether the gas meter is installed, whether the gas meter is equipped with the number of gas alarms, check whether the natural gas has been entered, check the number of the gas meter, record it with paper, and later deduct the gas fee. Whether to set a dedicated exhaust pipe.
2. Check the pipeline gas You can use the smoked paper roll to put it near the alarm device to see if the alarm device is sensitive. The alarm sound and light prompts to close the air solenoid valve at the same time. If it can't move, repair it in time.
3, to see if the balcony has a floor drain or downpipe. Pour some water in the floor drain to see if the water is open. Although the floor drain is small, its function cannot be overlooked. When there is no floor drain or outlet pipe during a heavy rain, the rainwater will diffuse into the living room, causing great trouble to the owners' lives.
4. Whether the outlet, sewer, or downpipe installation is firm or not, and whether the interface is leaky or not.
5. Check whether the house is clean, whether there is residual construction waste, or whether there is garbage in all open pipe space.
6, kitchen and toilet should be close to the ventilation channel. The kitchen and toilet should be arranged near the air passages, which will facilitate the rapid discharge of odors, exhaust gases, etc., and keep the indoor air clean. Fire extinguishment after ignition with a paper roll, place about ten centimeters below the mouth of the flue, and see if the smoke rises to the mouth of the flue.
7, the bathroom should be left under the ceiling vents. When you stay on the ceiling, you need to check the hand lamp to see if it has the installation property. At the same time, use the method to measure the pumping force. Check the presence of construction waste with a flashlight in the flue and vent. Toilets with windows in the corridor should be equipped with security nets. If there are no windows, there should be ventilation holes, ventilation holes should be set under the ceiling.
8. Check the installation, openness and sealing of the pipeline: Shake the heating pipe and the water pipe with your hands, and firmly fix it. If loose, fix it again. Open the water valve to see if the drainage is smooth (otherwise, the water pipe is blocked by the construction garbage). At the same time, use the toilet paper to wipe the bottom of the upper and lower pipes to see if there is any leakage.
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