How about the isolation effect of rubber shock absorber
When it comes to shock absorbers, ordinary people think of spring shock absorbers, and then rubber shock absorbers. Perhaps because spring shock absorbers accept relatively large vibration amplitude, such as the spring shock absorbers used in cars, the effect is relatively obvious, while rubber shock absorbers accept less vibration amplitude than spring shock absorbers, but since this product has been consumed, It absolutely has its commonality and common use.
In fact, the rubber shock absorber has a great advantage that it has a strong vibration isolation effect for high frequency vibration, because the rubber in the rubber shock absorber is highly elastic and viscoelastic. In this way, the high frequency vibration can be accepted, so the rubber shock absorber is used most frequently in transportation tools.
It has significant effects on vibration and noise reduction of mechanical equipment and noise transmission of pipeline system, and further eliminates the impact of sound bridge on structural buildings. Hanging rubber pneumatic butterfly valve is a vibration reduction measure that cannot be ignored. It has large deformation range and low natural frequency.
The working temperature of rubber shock absorber is - 15 ℃~+70 ℃. When the temperature changes, the stiffness also changes. Damping ratio C/CO>0.07. Positive vibration isolation of mechanical equipment such as water pump, compressor, fan, refrigerator, generator set, diesel set and negative vibration isolation of instruments and meters have good vibration isolation effect.

Maintenance of Nova Rotary Compensator with Compensation Bounds
Pay attention to the following maintenance measures for rotary compensator:
1. The drum of rotary joint and the inside of pipeline shall be kept clean. When using new equipment, filters shall be added if necessary to prevent abnormal wear of rotary joint caused by foreign matters;
2. If the machine is not used for a long time, it will cause scaling and rusting inside the rotary joint;
3. The rotating joint of circulating hot medium shall be heated gradually to prevent sudden temperature change. For those with oil injection installation, please inject oil regularly to ensure the reliability of rotating joint bearing operation;
4. Check the wear and thickness change of the sealing surface of the rotary compensator (the normal wear is 5 - 10 mm); Check the friction track of the sealing surface to see whether there are three intermittent points or scratches.
Maintenance free thrust free rotary compensator is a new type of compensator for thermal pipeline contraction compensation. The structure of rotary compensator is mainly composed of integral seal seat, seal gland, reducer, antifriction centering bearing, seal data, rotating cylinder and other components. The device needs more than two pairs on the thermal pipeline to form a relatively rotating absorption pipeline thermal displacement to reduce the pipeline stress.