Key words: How big is the heating pipe dn 125?
There are many kinds of pipes in the market, with different sizes, each of which has certain differences. So what is the outer diameter of the radiator heating dn 125?
What is the outer diameter of the radiator heating dn 125?
1, radiator heating dn 125pvc pipe
Its outer diameter is about 140mm, and it is made of PVC as the main raw material and other materials. It has certain heat resistance and ductility, and the surface is painted, the middle is PVC, and the bottom is adhesive.
2, radiator heating galvanized pipe dn 125
Its outer diameter is 140mm, and it is a five-inch tube, which is divided into two types: cold and hot, and is mainly used in fire fighting, electric power and other fields.
3, radiator heating dn 125 stainless steel pipe
Its outer diameter is also about 140mm, and its weight is very light. It is often used in petroleum, chemical and food industries.
4. Seamless steel pipe for radiator heating dn 125
Its outer diameter is about133 mm. This kind of pipe is mainly made of a whole round steel perforated without welding, so it is called seamless steel pipe.
5. Radiator heating dn 125 fire hose
The outer diameter of fire hose is also around 140 mm. This kind of hose has a special purpose, so it requires strict quality and pipeline, which is not only durable, but also resistant to high temperature.
Code for installation of heating pipes
1. Installation of radiator cover
When arranging the radiator management system, it should be coordinated with the use requirements of the building, the heating system scheme and the arrangement of radiators. , and strive to save pipeline, convenient installation and inspection.
Usually, the head of radiator pipe is surface mounted. When surface-mounted, it should be arranged at the corner of the external wall and the wall between windows as far as possible. Before installing the main pipe, put the radiator away first, and then install the riser after straightening, so that the size of the main pipe can be accurate. The semi-circular bend on the double riser should be accurate and straight, and the branch pipe should be in the middle of the semi-circular bend, and there should be no mistakes. After pipeline installation, check whether the coordinates, elevation, reserved mouth position and pipeline diameter change are correct, then straighten them, check the slope with a level meter, adjust the U-clamp of elevator bolt after it is qualified, so that it is moderately elastic and even to 1, and finally weld the stop wrench at the fixing clamp.
2. Installation of radiator branch pipe
When installing the radiator branch pipe, the concealed or semi-concealed radiator branch pipe lamp fork bend needs to adapt to the corner of the radiator groove to achieve the beautiful effect, and the branch pipe connecting the radiator should have a slope. Next time, the water supply branch pipe inclines to the radiator, and the backwater branch pipe inclines to the riser; There is no exhaust device for the top water supply riser, and the water supply and return branch pipes are inclined to the riser, while the water supply branch pipes of other floors are inclined to the radiator and the return branch pipes are inclined to the main pipe.
The installation of radiator branch pipe should be carried out after the installation of radiator and riser, or at the same time with riser. When the radiator branch pipe passes through the wall, it should be noted that the branch pipe cannot have a joint in the wall, except for casing. When installing the valve on the branch pipe, the side close to the radiator 1 should be connected with detachable parts. When installing radiator branch pipes, the steel pipes must be adjusted before they can meet, so as to avoid skew between branch pipes and risers.