One, the advantages and disadvantages of copper pipe
1, the advantages
(1) copper pipe is hard, not easy to corrode, and resistance to high temperature, high pressure, can be used in a variety of environments.
(2) copper pipe is durable, copper's chemical properties are stable, will be cold, heat, pressure, corrosion and fire resistance (copper's melting point of up to 1083 degrees Celsius) and other characteristics of a combination of different environments can be used for a long time.
(3) copper pipe safety and reliability, copper pipe set of metal pipes and non-metallic pipe advantages in one. It is harder than plastic pipe, with high strength of general metal (cold-drawn copper pipe strength and the same wall thickness of the steel pipe); it is easier than the general metal bending, good toughness and high ductility, with excellent vibration, impact and frost resistance.
(4) copper pipe health, copper pipe is no plastic pipe of various modifiers, additives, additives and other chemical components.
(5) Copper water pipe is good for health, copper water pipe water-saving anti-fouling and sterilization. When choosing or decorating a house, few people ask about the water supply pipe of the house. In fact, the material of the water supply pipe will greatly affect people's health.
2, disadvantages
In the case of copper pipe, the high price is its biggest drawback. In addition, the copper pipe interface connection depends mainly on the level of construction technology, the construction quality requirements are high.
Two, ppr advantages and disadvantages
1, advantages
PP-R pipe in addition to the general plastic pipe light weight, corrosion resistance, not scaling, long service life and other characteristics, but also has the following advantages:
(1) non-toxic, hygiene, PP-R raw material molecules only carbon, hydrogen elements, no harmful and toxic elements exist, hygiene and reliable, not only for hot and cold water piping, but also can be used to improve the quality of construction. Used for hot and cold water pipes, but also for pure drinking water system.
(2) Thermal insulation and energy saving, PP-R pipe thermal conductivity of 0.21w/mk, only 1/200 of the steel pipe.
(3) better heat resistance, PP-R pipe Vicat softening point of 131.5 ℃, the maximum working temperature of 95 ℃, can be used in the water supply system. The maximum working temperature of up to 95 ℃, can meet the building water supply and drainage specifications in the use of hot water system requirements.
(4) long service life. PP-R pipe in the working temperature of 70 ℃, working pressure (P.N) 1.OMPa conditions, the service life of up to 50 years or more; room temperature (20 ℃) service life of up to 100 years or more.
(5) easy to install, solid connection. PP-R has good welding performance, pipe, fittings can be used hot melt and electrofusion connection, easy to install, solid joints, the strength of its connection parts is greater than the strength of the pipe itself.
(6) materials can be recycled, PP-R waste after cleaning, crushing and recycling in the production of pipes and fittings. The amount of recycled material does not exceed 10% of the total, without affecting product quality.
2, disadvantages
PP-R pipe than metal pipe hardness is low, rigidity is poor, in the handling, construction should be protected to avoid undue external mechanical damage.
Three, the advantages and disadvantages of stainless steel pipe
1, the advantages
Stainless steel pipe is safe, reliable, hygienic, environmentally friendly, affordable, thin-walled pipe and the development of a new type of reliable, simple and convenient connection method is successful, so that it has more irreplaceable advantages of other pipes, the application of the project will be more and more, the use of the project will be more and more popular, and the outlook is promising.
2, disadvantages
Since stainless steel has been equipped with many of the ideal properties required by building materials, it can be said to be unique in the metal, and its development continues. Improvements are always being made to existing types in order to make stainless steel perform better in traditional applications, and new stainless steels are being developed to meet the stringent requirements of advanced architectural applications.
Four, according to the different uses of copper, ppr, stainless steel pipe selection
(1) copper pipe: lighter weight, good thermal conductivity, high strength at low temperatures. Commonly used in the manufacture of heat transfer equipment (such as condensers, etc.). Also used in oxygen equipment assembly of low-temperature piping. Small diameter copper pipe is commonly used to transport pressurized liquids (such as lubrication systems, oil pressure systems, etc.) and used as a gauge pressure measurement tube, etc., is a modern contractor in all residential housing, water piping, heating, cooling piping installation of choice.
(2) ppr: PP-R plastic aluminum steady state pipe products set of metal pipe and plastic pipe advantages in one, suitable for conveying medium temperature, oxygen barrier and open installation of special requirements for a wide range of working conditions, especially suitable for doing radiator heating system installed piping. ppr home piping system to meet the water supply needs under normal conditions of use, can be widely used in various types of home water supply piping system.
(3) Stainless steel pipe: Mainly widely used in petroleum, chemical, medical, food, light industry, machinery and instrumentation and other industrial piping and mechanical structure parts. In addition, in the bending and torsion strength is the same, the weight is lighter, so it is also widely used in the manufacture of mechanical parts and engineering structures. Also commonly used for furniture and kitchenware.
Expanded Information
An important reason for any kind of pipe to be used by people is that it can be recycled and reused without generating new pollution. The vast majority of materials in the application is not completely renewable, even if some can be partially utilized, in terms of quantity and quality, but also up to the performance of the raw material, consume a lot of energy and processing costs, more likely to cause pollution. For example, some plastic pipe, its waste or old pipe can neither be recycled, nor degradation, pressure on the environment.
And more than 90% of the world's copper can be melted down after use to become recycled copper continue to use. Recycled copper maintains all of the superior properties of the original copper, allowing it to be recycled over and over again. Installing copper pipes and fittings in a house is the equivalent of investing in savings. Decades later, when the house is dilapidated and all other materials and equipment are useless, copper fittings will still have value.
Baidu Encyclopedia - Copper Pipes
Baidu Encyclopedia - PPR
Baidu Encyclopedia - Stainless Steel Pipes