One, radiator control
Each radiator should be installed in the return valve. The inlet valve has manual and automatic adjustment valves. Automatic control valve, also known as radiator temperature control valve, the user can set the room temperature through it, when the room temperature increases, the valve opening decreases, the valve opening increases when the temperature decreases, automatically maintain the room temperature constant. At the same time, effective use of solar radiant heat and heat (free heat) generated by electric appliances, personnel, etc., saves users the cost of heating.
Second, the choice of pipeline
The tubes that can be used are: galvanized steel pipe, crosslinked polyethylene pipe, PP-R pipe, aluminum-plastic composite pipe, stainless steel pipe, copper pipe, and plasticized copper pipe. For the independent heating system, the copper pipe and the plasticized copper pipe are very reliable connection methods through welding or press-fitting joints. The use of plastic material pipe must consider the influence of oxygen penetration and pipe aging on the heating system. Whichever pipe is chosen to solve the problem of thermal expansion and the reliability of the connection is very important.
Third, the cloth way
(a) Radiator connection method for surface mounted pipes:
1. Single-tube series, this method is simple and saves pipe. However, the radiator (especially at the end) must be increased accordingly, and the temperature of each room cannot be individually adjusted and closed, the system resistance is large, and the boiler outlet water temperature is required to be high.
2. The single-tube and cross-over tubes are connected in series to solve the problem of separate control of the radiators, but the above other problems still exist, and the increased cost of the radiator by-pass devices.
3. Double pipes are connected in parallel. This connection method is relatively complicated, but it is very convenient for the regulation of each group of radiators. Usually the trunk pipe is arranged on the top of the room, and each radiator is connected to the horizontal pipe by a vertical branch pipe, and the system is easy to adjust and overhaul. The problem is that there are too many pipes in the room and the decoration is affected. The air in the system is not easy to discharge, and it is easy to produce pipe flow noise.
(b) Radiator radiator connection:
1. Diffusion type (octopus type) connection, with separate radiators connected to each set of radiators. Each set of radiators is an independent pipe. There is no joint under the ground, usually cross-linked polyethylene pipe or aluminum-plastic composite pipe. . The problem is that the slot is too wide and the tubing consumes a lot and is not suitable for all occasions.
2. Double-pipe parallel connection, the suitable pipe is cross-linked polyethylene pipe, aluminum-plastic composite pipe, copper pipe and plastic-clad copper pipe. The advantage is that all pipes are buried in burial, indoor pipe pipe is simple, each radiator is easy to control, and heating The system is very beautiful after installation. The problem is that the process of pipe connection is better. It is necessary to ensure that the joint does not leak water, the ground is to be grooved, and the construction is relatively complicated.
Fourth, insulation
For general lighting systems, insulation is not required in general. If there are pipes that are partially enclosed in the kitchen, they can be insulated with PE or rubber-plastic pipes. The dark pipe system is preferably made of polyurethane foam insulation.
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PVC Edge Banding For Furniture
The main function of the edge banding is to seal the cross-section of the board, so as to avoid the damage of the board and the adverse factors (mainly moisture) in the process of use and prevent the formaldehyde inside the board from volatilizing, and at the same time achieve the effect of beautiful decoration.
The product has the following main features: smooth surface, no blistering, no ribbing, moderate gloss, smooth surface and back surface, uniform thickness, uniform width, reasonable hardness, high elasticity, good quality, strong wear resistance, trimmed and sealed The color of the side and the side is close to the surface color, not whitish, good gloss, and the overall color of the finished furniture is coordinated.
Furniture edge banding is a material for protecting, decorating and beautifying the section of furniture panels. It can make a piece of furniture show the overall effect of clear wood grain and colorful.
PVC furniture edge banding is relatively light, which is relative to metal and plexiglass. The reason for the lightness is not because it is a polymer compound, but because they are organic compounds, which are composed of carbon, hydrogen, oxygen, and chlorine. And other lighter elements.
The material of pvc furniture edge banding is plastic, which is easy to process. Plastic has plasticity, that is, it deforms after heating or pressurizing, and maintains its original shape after the temperature drops or the pressure disappears. It can be processed into edge bands of their respective shapes by extrusion and other methods, such as T-shaped edge bands, H-shaped edge bands, D-shaped edge bands, V-shaped edge bands, I-shapes, and so on.
pvc furniture edge banding is of high quality and low price, and the price of plastic is far less than that of metal.
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