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Changshu smoothly of plastic extrusion factory about all kinds of plastic pipes applied in heating system
by：CSSSLD
2021-01-23
At present in our country, floor heating system used in plastic pipe with PEX and PP -
R plastic pipe is given priority to, in addition to a small amount of PP -
B and PB plastic pipe.
The following works of plastic extrusion factory in changshu respectively to introduce all kinds of plastic pipes in domestic production and application situation.
1. Mainly can be divided into PEX - PEX plastic pipe, PEX plastic tubing 一、PEX - b、PEX- Three c, because the PEX plastic pipe is relatively soft, thermal stress, thermal conductivity, good impact resistance, so the more widely used in floor heating system of our country. PEX - a few years ago B plastic pipe material production and consumption is larger, and PEX - C because large equipment investment in domestic development is not very well. PEX - B need of additional equipment and venues, increase investment, crosslinking time, affect the scale of production, the production cost is high. When the crosslinking degree of crosslinking is not easy to control, and often needs to experience so often affect the mechanical properties of the plastic tubing. PEX - B plastic feeling slightly less flexible, used in floor heating is a disadvantage.
the rise of PEX - in recent years A plastic raw material suppliers is given priority to with some south Korean manufacturers, PEX - though A plastic pipe material production speed is relatively slow, but because of its low price of raw materials, the plastic tubing is still cheaper price, but also good in performance so in PEX plastic pipe is most competitive.
2. PB plastic pipe: because PB plastic pipe in the above several kinds of plastic pipe has the highest pressure ability and best softness, so the PB plastic pipe part occupies the domestic high-end market. On the performance of it PB plastic pipe itself also has some disadvantages, in the construction of the negligence on the easy to cause the collapse of the plastic tubing. PB plastic oxygen transmission rate is quite high, easily when used for hot water pipe leading to the corrosion of the system, should not be used for the heating system.
in the domestic PB plastics has been compared to gold, but the PB plastic pipe on the international reputation and is not very good, PB plastic pipe market share in Europe for many years has been in a supporting role position, PB plastic pipe market almost lost in the United States. The PE - RT this soft thermoplastic pipe in the floor heating market competition situation, estimate PB only in a few market sales, is difficult to come up.
3. PP- And PP - R B plastic pipe: because PP - R the toughness of the plastic pipe is poorer, no performance advantage in the field of floor heating so application in the field is on the decline. PP- Plastic pipe temperature resistance than PP - B R plastic pipe is poor, so the use of the same under the condition of the plastic tubing wall thickness to be big. According to GB/T18742 'hot and cold water piping system with polypropylene' in the design of floor heating pressure to zero. 4 mpa and 0. Six of the PP - at the beginning of mpa B series plastic pipe are respectively the S3 and S4. 2, and PP - R plastic pipe are S5. PP - for 20 of the plastic tubing B separately in 2. 3 and 2. Wall thickness and PP - 8 R only need 2. Zero, to ensure the same pressure resistance to use PP - B after plastic pipe wall thickness to many. Combined with the PP - Softness of the B itself is bad, in the case of large wall thickness is more difficult to install so PP - B plastic pipe is not suitable for floor heating.
1. Mainly can be divided into PEX - PEX plastic pipe, PEX plastic tubing 一、PEX - b、PEX- Three c, because the PEX plastic pipe is relatively soft, thermal stress, thermal conductivity, good impact resistance, so the more widely used in floor heating system of our country. PEX - a few years ago B plastic pipe material production and consumption is larger, and PEX - C because large equipment investment in domestic development is not very well. PEX - B need of additional equipment and venues, increase investment, crosslinking time, affect the scale of production, the production cost is high. When the crosslinking degree of crosslinking is not easy to control, and often needs to experience so often affect the mechanical properties of the plastic tubing. PEX - B plastic feeling slightly less flexible, used in floor heating is a disadvantage.
the rise of PEX - in recent years A plastic raw material suppliers is given priority to with some south Korean manufacturers, PEX - though A plastic pipe material production speed is relatively slow, but because of its low price of raw materials, the plastic tubing is still cheaper price, but also good in performance so in PEX plastic pipe is most competitive.
2. PB plastic pipe: because PB plastic pipe in the above several kinds of plastic pipe has the highest pressure ability and best softness, so the PB plastic pipe part occupies the domestic high-end market. On the performance of it PB plastic pipe itself also has some disadvantages, in the construction of the negligence on the easy to cause the collapse of the plastic tubing. PB plastic oxygen transmission rate is quite high, easily when used for hot water pipe leading to the corrosion of the system, should not be used for the heating system.
in the domestic PB plastics has been compared to gold, but the PB plastic pipe on the international reputation and is not very good, PB plastic pipe market share in Europe for many years has been in a supporting role position, PB plastic pipe market almost lost in the United States. The PE - RT this soft thermoplastic pipe in the floor heating market competition situation, estimate PB only in a few market sales, is difficult to come up.
3. PP- And PP - R B plastic pipe: because PP - R the toughness of the plastic pipe is poorer, no performance advantage in the field of floor heating so application in the field is on the decline. PP- Plastic pipe temperature resistance than PP - B R plastic pipe is poor, so the use of the same under the condition of the plastic tubing wall thickness to be big. According to GB/T18742 'hot and cold water piping system with polypropylene' in the design of floor heating pressure to zero. 4 mpa and 0. Six of the PP - at the beginning of mpa B series plastic pipe are respectively the S3 and S4. 2, and PP - R plastic pipe are S5. PP - for 20 of the plastic tubing B separately in 2. 3 and 2. Wall thickness and PP - 8 R only need 2. Zero, to ensure the same pressure resistance to use PP - B after plastic pipe wall thickness to many. Combined with the PP - Softness of the B itself is bad, in the case of large wall thickness is more difficult to install so PP - B plastic pipe is not suitable for floor heating.
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