Is there sound insulation inside the pump chain housing?

Whether there is soundproof cotton inside the pump chain housing depends on the design and purpose of the housing. In some special application scenarios, especially for environments that require noise reduction, the interior of the housing may be designed with soundproof cotton or similar soundproof materials. This design can effectively reduce the noise generated during the operation of the chain, especially in high-speed operation or heavy loads, where the noise is often more noticeable. By adding soundproof cotton inside the housing, these sounds can be absorbed or attenuated, making the device quieter during use.
However, not all pump chain housings are equipped with soundproof cotton, especially for conventional equipment that does not have high noise requirements. Whether to add soundproof cotton usually depends on the working environment and usage requirements of the equipment. If working in areas that require low noise, or if equipment requires additional noise control, designers may consider adding soundproofing materials inside the housing.