Since there are so many different types of pipes, how can we tell them apart? This requires pipe classification, and the following is a detailed introduction to the knowledge about pipes, so that you can choose the most correct pipe when renovating.
Pipe classification
Galvanized pipes.
Most of the old houses use galvanized pipes, now gas, heating with the kind of iron pipe is also galvanized pipes, galvanized pipes as water pipes, after a few years of use, a lot of rust scale inside the pipe, the outflow of yellow water not only pollute the sanitary ware, but also interspersed with unsmooth inner wall breeding bacteria, rust caused by the high content of heavy metals in the water, seriously endangering human health. In the sixties and seventies, the international developed countries began to develop new tubes, and one after another banned galvanized pipes. The Ministry of Construction of China and four other ministries have issued a clear ban on galvanized pipes from the year 2000, the cold water pipes in new communities have rarely used galvanized pipes, and some communities use galvanized pipes for hot water.
UPVC pipe.
UPVC pipe is actually a plastic pipe, the interface is generally glued, UPVC pipe is not good frost and heat resistance, so it is difficult to use as a hot water pipe, because its strength can not be applied to the pressure requirements of water pipes, so cold water pipes are rarely used. In most cases, PVC pipe is suitable for electrical conduits and sewage pipes. In addition, in recent years, the scientific and technological community found that the chemical additive phthalide, which can make PVC softer, has a great impact on the kidneys, liver and testicles in the human body, which can lead to cancer, kidney damage, damage to the human body’s functional rebuilding system and affect development. So it is recommended that you do not buy.
Aluminum-plastic tube.
Aluminum-plastic composite pipe is a more popular pipe on the market, the current market is better known as Rifeng and Jinde, due to its light weight, durability and easy construction, its bendability is more suitable for use in home furnishings. Its main drawback is that when used as a hot water pipe, the long-term thermal expansion and contraction will cause misalignment of the pipe wall and cause leakage.
Many communities use aluminum-plastic pipes, in the decoration concept is relatively new in Guangdong and Shanghai, aluminum-plastic pipes have gradually no market, the current aluminum-plastic pipes in the Beijing market is still relatively active, I believe that in the near future, the Beijing market aluminum-plastic pipes will also face elimination.
PPR pipe.
As a new type of plumbing material, PPR pipe has unique advantages, it can be used as both cold water pipe and hot water pipe, due to its non-toxic, light weight, pressure resistance, corrosion resistance, is becoming a kind of promotion material, at present, Beijing decoration projects are still relatively few, PPR pipe is not only suitable for cold water pipes, but also for hot water pipes, and even pure drinking water pipes.
By section shape
(1) simple section steel pipe – round steel pipe, square steel pipe, oval steel pipe, triangular steel pipe, hexagonal steel pipe, rhombus-shaped steel pipe, octagonal steel pipe, semi-circular steel circle, other.
(2) complex section steel pipe – unequal hexagonal steel pipe, five-petal plum-shaped steel pipe, double convex steel pipe, double concave steel pipe, melon steel pipe, conical steel pipe, corrugated steel pipe, case steel pipe, etc.
By caliber
According to the caliber classification can be divided into large diameter seamless steel pipe, small diameter seamless steel pipe. According to the wall thickness according to the wall thickness can be divided into thin-walled steel pipe, thick-walled steel pipe.
According to the use
Steel pipe for pipeline, steel pipe for thermal equipment, steel pipe for mechanical industry, steel pipe for petroleum, geological drilling, container steel pipe, steel pipe for chemical industry, special-purpose steel pipe, other.
(1) Pipe. Such as: water, gas pipe, seamless pipe for steam pipeline, oil transmission pipe, oil and gas trunk line pipe. Agricultural irrigation taps with tubes and sprinkler irrigation tubes, etc.
(2) Pipe for thermal engineering equipment. Such as boiling water tubes for general boilers, superheated steam tubes, superheated tubes for locomotive boilers, large smoke tubes, small smoke tubes, arching brick tubes and high temperature and high pressure boiler tubes, etc.
(3) Machinery industry tube. Such as aviation structural tube (round tube, oval tube, flat oval tube), automobile half-axle tube, axle tube, automobile tractor structure tube, tractor oil cooler tube, agricultural machinery square tube and rectangular tube, transformer tube and bearing tube, etc.
(4) Petroleum and geological drilling tubes. Such as: oil drilling pipes, oil drilling rods (square and hexagonal rods), drilling joints, oil oil pipes, oil casing and various pipe joints, geological drilling pipes (core pipes, casing, active drilling rods, drilling joints, clamps and pin joints, etc.).
(5) Chemical industry pipe. Such as: petroleum cracking pipe, chemical equipment heat exchanger and pipeline pipe, stainless acid-resistant pipe, fertilizer high-pressure pipe and pipe for transporting chemical media, etc.
(6) Other departments with the tube. Such as: tubes for containers (high-pressure gas cylinder tubes and general container tubes), tubes for instruments and meters, tubes for watch cases, tubes for injection needles and their medical devices, etc.
What is the best pipe for decoration? I believe that after reading this article, what is the classification of decoration pipes? What is the best pipe for decoration? There is a basic understanding.
