Calculation formula for weight of 1. Teflon tube

Teflon tube, scientific name Teflon tube (hereinafter referred to as F4 tube), Teflon tube is the use of high-quality plunger extrusion tube, the use of special processing technology, so that the steel pipe and plastic tube closely combined, can withstand positive pressure 1.6Mpa, negative pressure: 77Kpa; can be used normally in -60 ℃ ~ 260 ℃, with reliable and excellent corrosion resistance. Transporting strong corrosive gases and liquids at high temperatures, which cannot be replaced by other pipelines.

Teflon tubes are widely used in machinery, chemical industry, aviation, electrical and electronics, national defense industry, cutting-edge technology, medical and health, electrical insulation and other fields.

that, how to calculate the weight of tetrafluoro tube formula?

To give you an example, inner diameter 4, outer diameter 6

Example: Teflon tube inner diameter 4 outer diameter 6

Weight per meter: (outer diameter inner diameter) * (outer diameter-inner diameter) * 1.74/1000

　　(6 4)*(6-4)*1.74/1000=0.0348kg

Weight per 100m: weight per m * 100=100m weight

0.0348*100=3.48 (PTFE tube with outer diameter 6 and inner diameter 4, weight 3.48kg for 100 meters)

This is the algorithm for the case where the inner and outer diameters are known, and there are other algorithms, for example

Known inner diameter 4 wall thickness 1, find outer diameter?

Inner diameter wall thickness wall thickness = outer diameter. 4 1 1=6, inner diameter 4, outer diameter 6

Known outer diameter 6, wall thickness 1, find inner diameter?

Outer diameter 6-wall thickness 1-wall thickness 1 = inner diameter, 6-1-1=4

The inner and outer diameters can be set according to the formula. Don't ask me the origin of the formula, too far away.

Figure 1: PTFE tube Source: Shenzhen Dankai

Teflon tube features: Teflon tube has excellent chemical stability, can withstand all strong acids, strong bases, strong oxidants, and various organic solvents do not occur. PTFE has a wide range of temperature, and can be applied to -180 ℃ ~ 250 ℃ for a long time under normal pressure. After being treated at 250 ℃ for 1000h, its mechanical properties change very little. PTFE has a very low friction coefficient, is a good antifriction, self-lubricating material, its static friction coefficient is less than the dynamic friction coefficient, so used to make the bearing has the advantages of small starting resistance, smooth operation. Because PTFE is non-polar, heat-resistant and non-absorbent, it is also an excellent electrical insulating material. Also has excellent aging resistance, non-sticky and non-flammable.

The bars, pipes, films, bearings, gaskets, valves and other special-shaped materials and parts are widely used in machinery, chemical industry, aviation, electrical and electronics, national defense industry, cutting-edge technology, medical and health, electrical insulation and other fields.

Teflon tube for 2. coffee machine

Shenzhen Dankai Technology Co., Ltd. specializes in the research and development and sales of fluorine plastic materials. It has advanced equipment and senior research and development teams. It has cooperation with Huawei, Midea, ZTE, Intel, AirTAC, and Foxconn. The company's main products are PTFE tubes, polytetrafluoroethylene propylene tubes, soluble polytetrafluoroethylene, and polyvinylidene fluoride. At the same time, it can process and produce various specifications of fluorine plastic products according to customer requirements.

PTFE pipe is the use of high-quality plunger extrusion pipe, the use of special processing technology, so that the steel pipe and plastic pipe closely combined, can withstand positive pressure 1.6Mpa, negative pressure: 77Kpa; can be in -60 ℃ ~ 260 ℃ within the normal use, with reliable and excellent corrosion resistance. Transporting strong corrosive gases and liquids at high temperatures, which cannot be replaced by other pipelines.

Teflon tube performance: strong acid resistance: strong alkali chemical reagent high temperature self-lubricating

PTFE tube material: PTFE resin

Teflon tube temperature:-80~260 ℃

Polytetrafluoroethylene (PTFE) has excellent chemical stability, can withstand all strong acids, strong bases, strong oxidants, and does not work with various organic solvents. PTFE has a wide range of temperature, and can be applied to -180 ℃ ~ 250 ℃ for a long time under normal pressure. After being treated at 250 ℃ for 1000h, its mechanical properties change very little. PTFE has a very low friction coefficient, is a good antifriction, self-lubricating material, its static friction coefficient is less than the dynamic friction coefficient, so used to make the bearing has the advantages of small starting resistance, smooth operation.

Figure 2: Teflon tube for coffee machine Source: Shenzhen Dankai

Because PTFE is non-polar, heat-resistant and non-absorbent, it is also an excellent electrical insulating material. Also has excellent aging resistance, non-sticky and non-flammable. PTFE made of bars, pipes, films, bearings, gaskets, valves and other profiles and parts, widely used in machinery, chemical, aviation, electrical and electronics, national defense industry, cutting-edge technology, medical and health and electrical insulation and other fields.

3. insulating sleeve is a kind of insulating material, is a general term.

Insulation materials are divided into single insulation and composite insulation. Insulation sleeve manufacturer

Single insulation with pure porcelain or resin insulation, often made of wall bushing, for 35 kV and below voltage level. The insulation is tubular, and the middle part is jammed or glued flange to be fixed on the perforated wall.

The flange is generally gray cast iron, and non-magnetic materials are commonly used to reduce heat generation when the working current is greater than 1500 amperes. The insulation structure of a single insulating sleeve is divided into two types: air cavity and air cavity short circuit. The air cavity bushing is used for voltage level of 10 kV and below. The air cavity is used as auxiliary insulation between the conductor and the porcelain sleeve, which can reduce the bushing capacitance and improve the corona voltage and sliding lightning voltage of the bushing. When the voltage level is high (20~30 kV), corona will occur in the air cavity and the above effect will be invalid. At this time, the air cavity short circuit structure is adopted.

The inner wall of the porcelain sleeve is coated with semiconductor glaze, and the air cavity is short-circuited with a spring sheet and a conductor to eliminate internal corona. However, corona and slip flash may still occur near the flange. Usually, a large umbrella skirt is set on the surface of the porcelain sleeve on both sides near the flange, and a semi-conductive layer is coated near the flange to make the electric field evenly distributed and improve the discharge characteristics of the casing.

Figure 3: Insulation Sleeve Source: Shenzhen Dankai

Composite insulation with oil or gas as insulation medium, generally made of transformer bushing or circuit breaker bushing, commonly used in 35 kV voltage level. The inner cavity between the conductor of the composite insulating sleeve and the porcelain sleeve is filled with transformer oil, which plays the role of radial insulation.

When the voltage exceeds 35 kV, the conductor is covered with an insulating tube or cable to strengthen the insulation. The conductor structure of the composite insulating sleeve has two types: the cable type and the guide rod type. The cable-passing type uses the outgoing cable of the transformer to pass directly through the casing, which is convenient for installation. When the working current is greater than 600 amperes, it is difficult to install the cable structure, and the guide rod structure is generally used.

Shenzhen Dankai Technology Co., Ltd. (ShenZhen DanKai Technology Co., Ltd.), whose predecessor was the Fluoroplastic Material Factory of Dongguan Dandi Insulation Material Co., Ltd. established in 1998, specializes in the research and development, production and sales of FEP, PFA, PTFE and other fluoroplastic tube rod sheet membrane products and other insulation materials. The company has international standards of senior R & D team and the introduction of foreign fluorine plastic products production line. Some fluoroplastic products through ISO9001, SGS, FDA certification, Huawei, Foxconn, the United States, ZTE, Intel, AirTAC and other domestic and foreign cooperation customers fully affirmed. The company's main products are: ① pipes: Ptfe pipes, Fep pipes, Pfa pipes, Pvdf pipes; ② Heat shrinkable tubes: Ptfe heat shrinkable tubes, Fep heat shrinkable tubes, Pfa heat shrinkable tubes, Pvdf heat shrinkable tubes; ③ Plate rod film: Ptfe plate rod film, Feep plate rod film, Pfa plate rod film, Pvdf plate rod film, etc. PE: PE, special, spiral tube, spring tube, rotary cutting tube, welding rod, tee, straight, gasket, joint, cone rod, flared tube, sealing tube, braided tube, corrugated tube, etc. At the same time can be customized according to customer requirements processing production of various specifications of fluorine plastic products.