1) The insulation layer is 20mm. The filling layer above the geothermal pipe should be filled with fine stone concrete. The filling layer on the heating pipe should be covered with a 2mm diameter steel mesh with a spacing of 100-150mm. The filling layer should not be less than 30mm.

　　 2) Inspection, debugging and acceptance of floor heating

　　3) Floor heating radiant heating system, from the completion of the heating pipe laying and the installation of the heat medium collection device and the pressure test, until the concrete filling layer curing period expires and the pressure is maintained.

　　Before the PEX Expansion Ring water pressure test, the pressure test pipes and components should be safely and effectively fixed and protected. The test pressure should not be less than the static pressure of the system plus 0.3Mpa, but not higher than 0.6Mpa. Reliable anti-freezing measures should be taken when water pressure test is carried out in winter.

1. Large storage space. When storing ppr pipe fittings on the construction site, first find a large space. If there is a warehouse dedicated to storing ppr pipes, store the ppr pipes neatly. If there is no warehouse, clean up a clean place, spread a layer of plastic cloth, and then transfer the ppr tube to it.
2. PPR pipe fittings need to be stored separately. The PPR pipes on the construction site should be stored separately, the same kind of PPR pipes should be placed together, the matching PPR pipes should be placed together, and the valves and other accessories should be placed next to the PPR pipes.
3. The ground should be level. The floor where the pipes are stored on the construction site must be flat, there must be no uneven places, no stones, nails, etc., garbage, debris, etc. will be cleaned up to keep the ppr pipe fittings clean.
4. Keep away from sharp objects. For example, sharp or sharp tools such as nails, electric drills, and files used by workers for construction should be neatly placed aside and not thrown away casually. It is not only easy to hurt the staff but also easy to damage Poly PEX Fittings.

1. The cleaning of floor heating pipes is generally better before heating. This can ensure the smoothness of the pipes during heating. By the way, check whether the joints of the water manifold are leaking during cleaning. If there are problems, they should be dealt with in time. Make all preparations to ensure the smooth progress of heating. In most areas of the north, heating starts in mid-November each year. The further north the heating time is, the earlier the heating time is. In some areas, the heating starts in mid-October. In some places, the heating time is earlier due to the cold climate. The heating time is slightly different in different regions, so we have to make preparations in advance.
2. There was a peak period of cleaning not long after the heating started. Since many owners did not clean the pipes before heating, some owners may feel that the heating effect of the home is not ideal after heating. At this time, you can consider cleaning the floor heating pipes. The cleaning price is of course higher at this time, especially during holidays.
3. In the middle of the heating period, if you feel that the indoor temperature is not as good as before, you can add another wash at this time. Generally, if the heating time is 4 months or more, you can add another wash in the middle of the heating period to ensure the heating effect. A floor heating cleaning machine usually takes an hour, which is more convenient and quick. After cleaning, the indoor temperature will increase significantly, generally by 3-6 degrees. Families with thermometers can pay attention to measuring the difference in indoor temperature before and after cleaning.
4. PEX Fittings Wholesale's cleaning work after heating. The cleaning is carried out at the end of heating. This cleaning is different from the previous few times. After cleaning, the water in the pipe should be discharged by the way. This is the basic maintenance of the floor heating pipe.

1. When carrying out the down-pipe work of PE double-wall corrugated pipes, metal materials should not be used to directly bundle or lift the pipes. At the same time, the pipes should be prevented from being scratched and twisted to avoid excessive tensile and bending forces.
   
       3. When embedding the polyethylene double-wall corrugated pipe in a serpentine shape, it should be bent and buried according to the terrain. For the polyethylene composite pipe with a steel frame, it should be buried in a natural straight line.
    
       In addition, in the actual operation of PEX Fittings Plastic, the bending radius of the PE double-wall corrugated pipe should meet the regulations, and mechanical or heating methods should not be used to bend the pipe. The specific underground operation requires that the construction personnel must master professional skills and theoretical knowledge, pay attention to the details of the construction, and prevent accidents.

First, touch the ppr tube by hand. The surface of the tube is fine and smooth and not rough. Point the ppr tube at the light source to observe the inner wall of the tube. The inner wall is smooth as a mirror and has low light transmittance when illuminated.

Secondly, look at the hardness of the PPR pipe. Hold both ends of the PPR pipe with both hands. The high-quality PPR pipe will not be deformed by hand and has high hardness.

Thirdly, take care of the completeness of the coding on the tube body. The coding on the tube and tube body of large manufacturers is clear, and the information such as trademarks, production dates, and specifications are complete.

Finally, it can pass the hot-melt test. A good ppr tube has a moderate hot-melt time, no smoke, no mucous membrane tip, and no pungent smell.

When decorating a new home, you can use these simple methods to choose a better PEX Crimp Fitting

1. PEX Crimp Fitting, in order to avoid a series of troubles caused by improper pipe selection after moving in, high-quality pipes will bring better quality to life in the next few decades.

Polyethylene pipe (hereinafter referred to as PE pipe) is a new generation of gas delivery pipe. It is an extruded pipe made of polyethylene as the main raw material. Compared with traditional metal pipes, it has corrosion resistance; light weight and density Only 1/8 of steel; long service life, up to 50 years; high strength, good toughness, can withstand stratum changes without breaking; simple construction and other advantages, it is a new product for the upgrading of gas pipelines.

At present, Poly PEX Fittings have been widely used in gas medium and low pressure pipe networks.