What are the rules for pipeline installation, and what are the main contents of pipeline installatio

Pipeline installation is generally installed by a special master, you will not be a master, I learned a little from Master Wan in the installation rules:

1. When installing pipelines, process problems often occur, and the spacing between welds does not meet the standard. The short pipe section should be smaller than the pipe, and the outer diameter should not be less than 150mm.

2. In line with the standard, GB50184, GB50517 and SH3501 put forward the inspection basis for pipeline welds.

3. According to the actual situation of the site: the arrival of the material is delayed, and the construction status of the same pipeline number cannot be completed at one time.

4. Prevent the welding hole from being lost, leaving quality hazards.

1) Pipes and joints are installed and installed.

2) Hydrostatic test or irrigation test.

3) Indoor steel pipe within DN32.

DAOs include:

Specialized in the management of cards and hooks.

Make the installation. 4) Steel pipes, including the production and installation of elbows (except for telescopic devices), whether on-site maple or finished elbows shall not be converted.

5) Cast iron drainage pipes, rainwater pipes and plastic drainage pipes include pipe clamps and hanging brackets, odor caps, and rainwater funnels for production and installation.

6) Manual installation of steel casing through the wall and through the floor.

1. Pipes and fittings should be transported by vehicles, and they should be tied firmly, handled by manpower, and the ups and downs should be consistent. When transporting with rollers, it is necessary to prevent the presser feet, and it is not allowed to directly adjust the rollers by hand. The tube rolls forward, and no one is allowed to do so.

2. Cut off the cast iron pipe with a gram, wear protective glasses, and there should be no curling cracks on the top of the gram.

3. Use a sawing machine, saw bow, pipe cutter, and grinding wheel pipe cutter to cut the pipe, to pad it flat and clamp firmly, not to laugh too hard, and to hold it with your hand or bracket when it is about to be cut off. The grinding wheel of the grinding wheel pipe cutter should be in good condition, and when operating, it should stand on the side.

4. The pipe is simmered, the sand must be dried, and the sand loading rack is firmly erected and railings are set up. When beating with machinery, no one should stand below, and the up and down of manual knocking should be staggered. When the pipe is heated, there must be no one in front of the nozzle.

5. Simmer with a winch, and the ground anchor and other (leaning) piles should be firm, and should not stand on the inside of the wire rope.

6. The air pressure gauge, water pressure gauge and pressure reducing valve of the fire mask flame simmering bender should be sensitive and reliable, and the water seal tempering device must maintain a safe water level. The acetylene pressure is controlled at 4 6kg. After the work is completed, the power and water should be cut off.

7. The workpiece of the thread should be clamped firmly, the workbench should be stable, and more than two people should operate, and the action should be coordinated to prevent the handle from hitting people.

8. The pipe should be coordinated in series and matching, and the hand should not be placed on the joint between the nozzle and the flange.

9. When turning the workpiece, prevent sliding and dumping to hurt people.

10 The portable grinder should have a protective cover, and when operating, stand on the radial side of the grinding wheel, and wear insulating gloves or stand on the insulating plate.

11. In the construction of the ditch, in case of loosening, cracks, water seepage, etc., solid wall support should be added in time. It is forbidden to replace the upper and lower escalators and hoisting brackets with solid wall supports.

12. Manually put the pipe into the trench, and the rigging and ground piles used must be firm, and no one should be in the trench.

1. The pipeline project should be installed according to the requirements of the residents, and the pressure should be tested after completion, and the inspection should be qualified before other decoration projects can be carried out.

2. The quality of selected pipes and pipe fittings should meet the provisions of the current national standards.

3. The installation of the pipeline must be horizontal and vertical. Drains must be clear.

4. The position of the various valves installed should be correct, which is convenient for use and maintenance.

5. After the water pressure test of all joints, there shall be no water seepage and water leakage at the connection between the valve and the pipeline.

6. The thread of the terminal interface of the galvanized pipe must have eight teeth, the inlet pipe must have five teeth, and there must be no bursting teeth, and the raw material belt must be unified for more than 5 turns, so that it can take over the twisting 2 After twisting, it shall not be rehinged in the opposite direction. After installation, it should be fixed with hook nails in time. There must be no loosening between the pipe and the pipe fittings or valves.

7. Plastic (PVC) pipes and pipe fittings should be installed in strict accordance with the provisions of the product manual.

8. The valve should be installed before the water inlet of the water heater (electric water heater).

9. The hot and cold water connector of the washbasin should be installed below the washer, with cold water on the right and hot water on the left.

10. The drain port of the bathtub should be aligned with the downpipe mouth and sealed, and it is strictly forbidden to use plastic hoses to connect. The shower faucet should be installed on the same side of the drain, with cold water on the right and hot water on the left, with the faucet in an upright position and the bowl-shaped shield against the wall.

Pipeline installation can be seen everywhere in our daily life, and the use of pipelines has an important role that cannot be ignored for the development of the entire social economy. I believe that most people have no idea about this problem, due to the many steps of pipeline installation construction specifications, so that the pipeline installation construction specifications are more complicated, then, what are the home decoration pipeline installation construction specifications? Let's find out.

General provisions. 1. This chapter is applicable to the installation of sanitary appliances such as washing and cleaning in kitchens and bathrooms, as well as the pipeline construction of water supply pipe section and indoor drainage pipe section after the water inlet valve of separate households.

2. Water-saving appliances should be actively used for raw appliances and various valves.

3. The installation of all kinds of sanitary equipment and pipelines should comply with the relevant provisions of the design and the current national standards and specifications.

Main material quality requirements.

1. The variety, specification and color of sanitary appliances should meet the design requirements and should have a product qualification certificate.

2. Water supply and drainage pipes and parts should meet the design requirements and should have a product qualification certificate.

Construction points. 1. The connection between various sanitary equipment and the ground or wall should be firmly installed with metal fixings. Metal fixings should be treated with anti-corrosion.

When the wall is a porous brick wall, the holes should be drilled and filled with cement mortar before the fixtures are installed. When the wall is a lightweight partition wall, a post-embedded part should be set in the wall, and the post-embedded part should be firmly connected with the wall.

2. The pipe connections installed by various sanitary appliances should be easy to disassemble and maintain. The drainage pipe connection should be made of rubber gasket drainage plug. Lead or rubber gaskets should be placed on the connecting surface of sanitary appliances and metal fixtures.

All kinds of sanitary ceramic appliances shall not be embedded with cement mortar.

3. All kinds of sanitary appliances and countertops, walls, floors and other contact parts should be sealed with silicone glue or waterproof sealing strips.

4. Appropriate protection measures should be taken for finished products after the installation and acceptance of various sanitary appliances.

5. The pipeline laying should be horizontal and vertical, and the position of the pipe clamp and the slope of the pipeline should be different, and the stove section should meet the requirements of the specification. All kinds of valves should be installed in the correct and flat position, which is easy to use and maintain.

6.The pipes embedded in the wall and the ground should be treated with anti-corrosion treatment and protected with cement mortar, and their thickness should meet the following requirements: the cold water pipe in the wall shall not be less than 10mm, the hot water pipe shall not be less than 15mm, and the pipe embedded in the ground shall not be less than 10mm.

Pipes embedded in walls, floors or concealed applications should be accepted for concealed works.

7. The installation of hot and cold water pipes should be hot on the left and cold on the right, and the parallel spacing should not be less than 200mm. When the hot and cold water supply system is supplied with a water separator, it should be connected by semi-flexible pipes.

8. The installation of various new pipes should be carried out according to the product instructions provided by the manufacturer.