Screw pump mechanical seal HSNS210-40A is an indispensable key component in the screw pump system. Its core role is to prevent the leakage of the medium in the pump and ensure the efficient and stable operation of the equipment. It also helps to extend the service life of the equipment and reduce maintenance costs.

The mechanical seal HSNS210-40A achieves sealing through a plane friction pair composed of one or several pairs of dynamic rings and static rings. The dynamic ring rotates with the shaft, and the static ring is fixed on the equipment housing. Under the action of elastic elements (such as springs or bellows) and the pressure of the sealing medium, the end faces of the dynamic ring and the static ring fit tightly to form an extremely thin fluid film, thereby achieving the purpose of sealing. This layer of fluid film not only plays a sealing role, but also provides lubrication and pressure balance.

Performance characteristics

1. High sealing reliability: The mechanical seal HSNS210-40A can maintain an extremely low leakage rate during long-term operation, and can even achieve no leakage. This is particularly important for screw pumps that handle toxic, harmful, flammable, and explosive media. It can effectively prevent media leakage and ensure the safety of equipment and operators.

2. Long service life: The sealing surface made of high-quality alloy materials has good wear resistance and corrosion resistance. The dynamic ring can move flexibly in the axial direction, automatically compensate for the wear of the sealing surface, and maintain a good fit with the static ring, thereby extending the service life of the seal and reducing the replacement frequency.

3. Low friction power loss: Compared with traditional packing seals, the friction coefficient of mechanical seals is very small, and its power loss is only 10% to 50% of that of packing seals, which can significantly reduce the energy consumption of equipment and improve overall operating efficiency.

4. Strong adaptability: It is suitable for a wide range of working conditions, including high temperature, low temperature, high pressure, vacuum, various speeds, and sealing of corrosive and abrasive media. The requirements for shaft accuracy and finish are relatively low, and it is insensitive to shaft vibration and deflection, and can operate stably in relatively harsh working environments.

In order to ensure the performance and service life of the mechanical seal HSNS210-40A, correct installation and regular maintenance are essential. During installation, it is necessary to ensure that the radial runout tolerance of the shaft (or sleeve) meets the requirements, the surface roughness meets the standards, and the runout tolerance of the positioning end face of the sealing cavity and the sealing end cover on the shaft (or sleeve) surface must also be strictly controlled. During operation, the operating status of the seal should be checked regularly, and potential problems should be discovered and dealt with in a timely manner, such as adjusting the compression of the spring, removing impurities, etc., to maintain good performance of the seal.

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