As a core equipment for conveying high-viscosity and particle-containing media,the rotor pump relies on a seemingly inconspicuous yet critical internal component:the sleeve.It fits internally against the rotor shaft and connects externally to the pump bearing,not only protecting the shaft and bearing from media wear but also transmitting operational forces and reducing vibration.

(Bonve Cam-Type Dual Rotor Pump)

In terms of types,rotor pump sleeves must be adapted to their specific working conditions,with common varieties including wear-resistant and corrosion-resistant types.

Wear-resistant sleeves are designed for conveying media containing fine particles,preventing rapid sleeve wear that could lead to seal failure.

Corrosion-resistant types are used in the chemical industry for conveying corrosive liquids,preventing sleeve erosion that could compromise pump sealing.

Regarding material selection,rotor pump sleeves must balance wear resistance,corrosion resistance,and compatibility with media characteristics.

Among plastic materials,PTFE(polytetrafluoroethylene)sleeves are suitable for conveying mildly corrosive media due to their resistance to acids,alkalis,and low friction.Nylon PA sleeves offer high mechanical strength and can withstand the impact of medium-viscosity media.

For metal materials,copper sleeves are a common choice in rotor pumps.They not only secure the rotor shaft to prevent operational deviation due to vibration but also function as plain bearings.

When the rotor pump operates at low speeds with high precision clearance requirements,copper sleeves can run reliably without complex lubrication systems.Their inherent wear resistance ensures long-term operation,reducing maintenance costs and failures caused by insufficient lubrication.

Bimetallic sleeves,leveraging the composite advantages of two metals,excel in high strength and corrosion resistance.They are suitable for demanding conditions involving high-pressure and high-viscosity media.With minimal processing such as chamfering and drilling,they can be quickly installed,enhancing the assembly efficiency of rotor pumps.

In practical applications,the role of rotor pump sleeves is irreplaceable.

In the printing and dyeing industry,they resist the corrosion of dyes,ensuring stable dye conveyance.In food processing,sanitary-grade sleeves prevent media contamination and comply with food safety standards.In petrochemical applications,wear-resistant sleeves withstand the abrasion from impurities in crude oil,extending the service life of rotor pumps.

Bonve always adheres to the philosophy of "Wholeheartedly Making Good Rotor Pumps," committed to providing global customers with customized conveying and mixing solutions. If you have technical inquiries, selection needs, case references, or other cooperation intentions related to Bonve rotor pumps, please feel free to contact us.  

Service Hotline: 0574-87588986 13586591794  

Official Website: www.bvpumps.com  

Business Email: market@bonvepumps.com  

We look forward to working with you to drive efficiency and innovation in industrial fluid transmission with precision technology.