Third, in terms of economic performance, the initial investment of electric tools is not high, but long-term energy consumption will increase the cost of maintenance and parts replacement. Although the initial investment of pneumatic ball valve should be based on air compression pipeline equipment, it is better than long-term maintenance and low cost.

What is a square compensator? What is the difference between it and bellows compensator?
The square compensator has two functions:
(1) When the pipeline passes through the foundation beam or open room wall, in order to prevent the pressure of foundation settlement on the pipeline, it is required to install a square compensator.
(2) Under the condition that the thermal pipeline is too long, it is required to install a square compensator to reduce the stretch of the pipeline caused by "thermal expansion and cold contraction".
The method of completion: use four 90 degree elbows (metal pipes), or eight 45 degree plus direct connectors (pvc or pe) to distinguish: the top of the square compensator is approximately "convex or concave"; Its basic principle is the same as that of the bellows compensator, except that the compensation range of the square compensator is not as large as that of the bellows compensator, and the setting position is limited!
3. What is the function of the compensator of the steam pipeline? Does the compensator extend when cold or when hot?
1、 The function of the compensator of the steam pipeline: mainly to ensure the safe operation of the pipeline, it has the following functions:
(1) Compensate the axial, transverse and angular thermal deformation of absorption pipe.
(2) Absorb equipment vibration and reduce the impact of equipment vibration on pipeline.
(3) Absorb the deformation of pipeline caused by earthquake and ground subsidence.
2、 Does the compensator extend when cold or when hot? Click here to view the technical parameters and relevant information of the corrugated compensator. When the pipeline medium is lower than 20 degrees, the pipeline shrinks under the influence of temperature, and the compensator extends. When the medium is above 20 degrees, the pipeline will shrink and extend, and the compensator will shrink. When the medium is maintained at 20 °, the compensator is maintained at the original position.