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PVC-M is a modified PVC pipe.
The seismic performance of PVC-M pipe, a modified product of PVC pipe products, is better than that of PVC-U.
PVC long life means that the material itself has a longer life than PE and other plastics when it is under less pressure or no pressure, and the long-term strength of PVC is 25MPa, while PE100 is 10MPa. However, PVC is slightly "brittle" in terms of PE. That is, it is easy to be injured by impact, and the long-term strength becomes low.
Therefore, in the national standard, UPVC adopts the insurance coefficient of the following pipelines) or above pipelines) to design the pipeline, while the PE only uses the insurance coefficient to design the pipeline, that is, as long as the UPVC solves the relative brittleness, it can not only improve the safety performance of the pipe (there is no need to use such a high insurance coefficient), but also solve the adaptability to the current domestic construction conditions.
In order to better facilitate the use of users, we are committed to improving the toughness of PVC and reducing the design insurance factor. At the same time, a series of studies have been carried out to make users feel more at ease to use PVC pipes. In order to ensure the longevity of toughness, the method of only increasing toughness without plasticity was adopted, and PVC-M pipes were finally developed.
Under the premise of basically not reducing the long-term strength, the toughness reaches 10 times higher than UPVC5, and the notched impact strength is 30MPa(20), which is more than 3 times that of UPVC. After the toughness is improved, the susceptibility to failure is reduced, and the pipe is not easy to be injured or the degree of injury is greatly reduced, so that the impact on long-term strength is reduced. Therefore, the design safety factor can be used.
Under the above-mentioned toughness, the coefficient verified by many countries, not to mention that our company's PVC-M toughness index exceeds the toughness of its test), although the cost of PVC-M per ton is higher than UPVC, but due to the low value of the insurance coefficient, the wall thickness becomes thinner, so the ** per meter is not higher than UPVC.
In this way, PVC-M pipes not only have the advantages of PE pipes, but also have the advantages of easy installation and maintenance of UPVC. At the same time, ** is not higher than UPVC pipes, which are about 30 per meter lower than PE pipes. Therefore, it has a broader prospect than UPVC and PE pipes.
Modification of PVC pipes – PVC M and PVC O. The MRS of ordinary PVC U pipe is higher, but the safety factor is 2 5, and the strength advantage is not large, PVC M pipe can reduce the safety factor by improving toughness, while PVC O pipe can improve the strength and toughness at the same time through directional modification.
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PVC-M high impact pipes, the main disadvantage of ordinary PVC-U pipes is that they are prone to brittle cracking, because the pipes will inevitably be damaged in practical applications (such as damage during unreasonable laying, transportation and handling), so there are often dangerous points of cracking caused by stress concentration. The toughened modified PVC-M pipes developed in countries such as the United Kingdom, Australia and the Netherlands require to increase the toughness and design stress, which is equivalent to increasing the use strength.
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How to connect PVC-M pipes?
The correct operation steps for the bonding of PVC pipes are as follows, and I will share the steps with you here! First of all, use sandpaper to brush the outside of the PVC pipe end and the inside of the pipe fitting socket, then use a clean rag to wipe the sanded flakes clean, then evenly apply the glue, and finally insert the pipe end into the pipe fitting socket. And some construction personnel in the construction process did not use sandpaper for grinding at all, or did not use a towel to wipe the dander clean after grinding, which makes the pipe leave defects in the bonding process, because the pipeline will continue to be used after the preparation of the tour reform, and withstand the water pressure, it is inevitable that it will not crack for a long time, thus causing the phenomenon of flowing water.
In addition, the choice of glue is also very important, you can't choose which glue is inferior or the imitator uses the glue that has expired, which is a hidden danger in the future.
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Summary. Hello, the connection form of VC-M pipe is basically the same as that of ordinary PVC-U, and there are generally two connection forms:
1. Small-diameter pipes are bonded with adhesives.
2. The large-diameter pipes are connected by rubber rings.
How to connect PVC-M pipes?
Hello, the connection form of VC-M pipe is basically the same as that of ordinary PVC-U, and there are generally two connection forms: 1. Small-diameter pipes are bonded with disturbance adhesive. 2. The front diameter pipe of Dakoukai is connected by a rubber ring to staring at Li Qing.
Hello, the connection form of PVC-M pipe is basically the same as that of Pusun Grip Pants Pass PVC-U, and there are generally two connection forms: 1. The small mouth is simple diameter pipe and is bonded with glue and adhesive. 2. The large-diameter skin missing pipe is connected by rubber ring.
Hello, PVC-M pipes and other materials of pipes and equipment pants can be connected in the form of flanges and silk imitation buckles, the above connection forms are convenient to connect, and they are safe and reliable.
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Summary. Hello, dear. <>
How to connect PVC-M pipes?
The connection form of PVC-M pipe is basically the same as that of ordinary PVC-U, and there are generally two connection forms:
Small-diameter pipes are bonded with adhesives.
The large-diameter pipes are connected by rubber rings. When PVC-M pipes and pipes and equipment of other materials are connected, they can be connected by flanges and threads, which are convenient to connect and are safe and reliable.
How to connect PVC-M pipes?
Hello, dear. <>
How to connect PVC-M pipes? The connection form of PVC-M pipe is basically the same as that of ordinary PVC-U, and there are generally two types of connection forms: small-diameter pipes are bonded with adhesive.
The large-diameter pipes are connected by rubber rings. When PVC-M pipes are connected with pipes and equipment of other materials, Sun Zheng can use flange digging and thread connection forms, which are convenient to connect and are safe and reliable.
How do you get in the rubber ring.
Generally, PVC pipes with a diameter greater than or equal to 100 mm are connected with rubber rings.
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PVC pipes are made of plastic. PVC pipe is extruded by hot pressing method after combining PVC resin with stabilizer and lubricant, etc., and is the earliest plastic pipe to be developed and applied, divided into soft PVC and hard PVC, soft PVC is generally used for floors, ceilings and leather surfaces, hard PVC does not contain plasticizers, better physical properties, and has greater development and application value.
PVC is a synthetic material that is widely used in the world today, and the global use is the second highest among all synthetic materials.
PVC pipes are divided into PVC-U pipes, PVC-M pipes, and PVC-O pipes.
PVC pipes are used for the surface of various panels, so they are also known as decorative films and adhesive films, which are used in many industries such as building materials, packaging, and medicine.
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PVC pipes are made of plastic. PVC is mainly composed of polyvinyl chloride, and other components are added to enhance its heat resistance, toughness and ductility. The top layer of this surface ** is lacquer, the main component in the middle is polyvinyl chloride, and the bottom layer is the back-coated adhesive.
It is a kind of synthetic material that is loved, popular and widely used in the world today. It has the second highest global use of all synthetic materials. <
PVC pipes are made of plastic. PVC is mainly composed of polyvinyl chloride, and other components are added to enhance its heat resistance, toughness and ductility. The top layer of this surface ** is lacquer, the main component in the middle is polyvinyl chloride, and the bottom layer is the back-coated adhesive.
It is a kind of synthetic material that is loved, popular and widely used in the world today. It has the second highest global use of all synthetic materials. According to statistics, in 1995 alone, PVC production in Europe was about 5 million tons, while its consumption was 5.3 million tons.
In Germany, PVC is produced and consumed on average at 1.4 million tons.
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