Hydroelectric reform vocabulary dictionary allows you to have a bottom of the spectrum of transformation

PPR tube

The scientific name is a random polypropylene copolymer pipe, which is the most commonly used water supply pipe in waterway reconstruction. It is mainly used for water pipes (Shuishe) and heating pipes. Its advantages are no rust, no scaling, easy construction and heat resistance. Good sex, no pollution, the price is also more suitable for ordinary families, a higher cost of a pipe. Before 2003, before PPR pipes were widely used, many families had used iron pipes and aluminum-plastic composite pipes. Both pipes have now been eliminated. As the iron pipes are apt to rust, if the parts are damaged, the construction of the replacement is very difficult; and the pre-embedded aluminum-plastic composite copper-aluminum interface easily expands, cracks, and leaks due to heat, and many communities now use aluminum-plastic pipes. There has been a problem of water leakage. Therefore, when the second-hand housing is undergoing renovations, if the iron pipes and aluminum-plastic pipes are used before, it is recommended that all of them be replaced with PPR pipes. In general, it is recommended to use PPR hot water pipes in the construction of all the water pipes to prevent workers from installing hot water pipes and cold water pipes instead of causing bursts of pipes, and hot water pipes and cold water pipes are not much different.

Two-way connector tee

The joint is a fitting accessory for pipes, used for connecting and splitting pipes, two joints can connect two pipes together, a three-way joint can connect three pipes together, and some three-way joints can change the pipes. Angle, change the original 90° angle between the two pipes to 45°.

air switch

A switch that automatically turns off as long as the current in the circuit is too large. It is used in the circuit to turn on, break, and carry a rated operating current, and can protect it in the event of overload, short circuit, or undervoltage on the line and motor. Do not use the air switch on the air conditioner, otherwise the air conditioner will restart repeatedly.

PVC pipe

The main component is polyvinyl chloride, and other ingredients added to enhance its heat resistance, toughness, ductility and so on. PVC pipe is mainly used for wrapping the wire in the circuit transformation, and is also the material of the commonly used sewer pipe. Its advantages are not easy to rust, good heat dissipation, and insulation. In the indoor construction specification, it is required that the wire cannot be directly put into the wall and must be sleeved to prevent the wire from being scratched. At present, the wire bushings are also made of galvanized iron pipes, which have a shielding effect and prevent the interference of strong electricity with weak electricity.

2.5 square, 4 square

The “square” of the wire actually refers to the area of ​​the round cross-section (wire diameter) of the wire, in square millimeters, which is often simply referred to as square in a home improvement project. The thicker the wire diameter, the greater the power that can drive the appliance. In the current home improvement project, general lighting uses 2.5 square meters of wire, while the air conditioning alone go all the way, using 4 square wire, kitchen, bathroom because of the use of more electrical appliances, but also recommended the same treatment with the air conditioning circuit. If you are using a fast-fired water heater in your home, because the power is particularly large, it is best to go one way, using 6 square millimeters of wire.

PB tube

The scientific name is polybutene tube. The advantage is high temperature resistance. At present, it is mainly used as heating pipe, middle water pipe and toilet water pipe.

Flange

The flange is a round part that connects the tube and the tube and is connected to the tube end. Flange used in different places have different roles, if used in the stainless steel armrests can play a decorative role, but also used in the tap roots are also used for decoration, mainly to cover the gap in the opening of the tile, and used in the toilet Under the seat is mainly used for sealing.

Angle valve, ball valve, H valve

This is the name of several types of valves. Because they are named after different appearances, they all have the function of opening and closing water flow. The angle valve is named because the pipe is formed at the angle of 90 degrees at the angle valve. The function is to transfer the internal and external water outlets, regulate the flow of water when the water pressure is too high, and switch the water flow (if the faucet leaks water, etc., the angle valve can be turned off. You don't have to shut the total valve.) The structure and function of the ball valve and the angle valve are basically the same, except that the opening and closing parts are spherical and the home decoration is used in the gas pipeline. H valve is generally used in heating, is an H-shaped valve at the junction of the pipe and the radiator, to bypass a part of the water flow, generally used in a series of radiators, can be used to ease the regulation of a single radiator for the entire circuit The impact.

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