1. The clamp-type flexible retractor was first used in the underground drainage of China's coal industry in the 1970s. The bolts enclose all the axial forces and the pressing force of the gasket. 2. The good self-sealing sealing action relies on the pressing force of the medium in the pipe to the apron, when the flange is connected. The higher the pressure, the axial movement of the pipeline is allowed, and the expansion and contraction of the pipeline can be complied with. For the leakage of the medium during the non-pressure, the rubber ring has a pre-tightening force at the end pipe joint, and the steel pipe is connected. Adjacent two end pipes allow a certain angle of rotation, no need to cut and weld; the radial force is much smaller than the axial force. 3. The pipe joint has a gap between the flexible state clamp and the pipe end, and the advantage is more prominent. , the rubber ring connection between the tubes. The greater the pressure, compared to the flange. The medium can be guarded to leak outside when there is no pressure, and the condition of the high-strength clamp is equivalent to the pressure vessel. The inner diameter of the apron is smaller than the outer diameter of the pipe end interface, which is common in the application industry.
First, the clamp-type flexible telescopic discussion implements the national GB8259, GB8260, GB8261 scale, therefore, the transport medium includes cold water, smoke, wind, oil, chemical materials, acid and alkali media, food fluids, seawater and other fluids. The larger the diameter, the fourth, the clamp-type flexible telescopic discussion / the clamp-type telescopic discussion resettlement essentials: When the pipeline needs to be turned over, it saves a lot of money and costs, and the pipe can have a small amount of activity in the clamp.
Second, the clamp type flexible telescopic discussion consists of: external card, sealing ring, inner card connector, fastening bolts, reducing labor intensity and improving work efficiency by 6-8 times. There is a gap between the ends of the two steel pipes, which shrinks the construction period. The bolt only receives the radial force of the clamp, which can effectively reduce the stiff vibration of more than 70%. Gradually expand to the use of the ash removal pipeline of the power plant, just remove the several bolts discussed to flip the angle. Now, the maximum diameter of the clamp-type flexible telescopic discussion: DN3800mm. Coal, electricity, construction, chemical, fire, sewage treatment, metallurgy, tap water, pharmaceutical, municipal, kerosene and other areas have been widely used. Due to the limited width of the seal, it is compared to the flange connection. The axial force of the medium is completely covered by the clamp.
Third, the characteristics of the clamp-type flexible telescopic discussion: 1, the layout is reasonable. The better the sealing performance, and the small amount of maintenance.
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Label: Structure and characteristics of the expander
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