Vacuum bellowsThe manufacturer will tell you about the service life and application of corrugated pipe products.

Vacuum bellows manufacturers: product life of bellows

Corrugated pipe is a tubular elastic sensitive element formed by connecting foldable corrugated sheets along the folding and stretching directions. Corrugated pipe is widely used in instruments and meters. Its main purpose is to convert pressure into displacement or force. As a measuring element of pressure measuring instruments, corrugated pipe has thin wall and high sensitivity. Its measuring range is tens of Pa to tens of MPa. Its open end is fixed and its sealed end is in a free state, by using auxiliary coil spring or reed to increase its elasticity, when working, under the action of internal pressure along the length of the pipeline stretch, so that the movable end and the pressure has a certain relationship with the displacement, the movable end drives the pointer to directly indicate the pressure, bellows is often combined with the displacement sensor to form an output pressure sensor, sometimes used as an isolation element, because the expansion of the bellows requires a larger volume change, its response speed is lower than the Bourdon tube, the bellows is suitable for measuring low pressure.

Vacuum bellows manufacturers: duration of bellows

The use time of the bellows is determined by the number of uses when the bellows is working. The less the number of uses, the shorter the use time of the bellows, the more the number of uses, the longer the use time of the bellows, the bellows plays an important role in the instrument Therefore, it is necessary to carefully observe the use time of the bellows and replace the new bellows to continue the operation of the instrument, and according to the use of the bellows, the use time of the bellows will also be affected to a certain extent. Some instruments need to use the bellows for a long time, while others do not.

When the bellows is used for a constant temperature controller with high switching frequency, its service life should reach 10000 times to meet the use requirements, while when the bellows is used as a vacuum seal for a vacuum switch, its service life should reach 30000 times to ensure its normal operation. As can be seen from the two examples just now, the service life of the bellows is related to the place where it is used, with high fit, strong usability, low fit and low usage rate.

　　Vacuum bellowsManufacturer: Load bearing and application range of vacuum bellows

The large load value or full scale value allowed by the vacuum bellows and other elastic components under normal working conditions is usually the expected design value, or the design value corrected after the actual test of the product prototype.

The carrying capacity of a specific elastic element product, when it is allowed to exceed the rated load, there is no damage, failure or instability at that time or during the test. For the elastic sensitive element of the instrument, the overload capacity is generally limited to 125 of the rated load. The corrugated pipe used in engineering is generally limited to 150 of the rated load. According to engineering requirements, when a larger safety factor is required, the elastic element used does not allow any overload, so the load needs to be less than or equal to the rated load value.

　　Vacuum bellowsIt is used for the connection between vacuum equipment and vacuum pipeline and vacuum pipeline, and plays the role of shock absorption, disinfection and compensation. Due to its unique function, vacuum bellows are widely used in mechanical engineering, vacuum equipment, chemical industry, vacuum sealing, soft connection, pressure sensing, stiffness compensation, electronic engineering and other industrial fields.

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