The mechanical seal of a cam rotor pump is a core component for equipment sealing.To maintain a good sealing effect and service life,controlling the details of daily operational maintenance is particularly critical.

First,strictly prevent leakage and dry friction.For continuously operating pumps,avoid cavitation(running dry),and consider installing automatic protection devices.For intermittently operating pumps,address material crystallization issues before starting to prevent scratching of the seal end faces.

Second,ensure the normal operation of the flush cooling circulation system and related instruments to avoid seal failure caused by pipeline blockages or water stoppages.

Furthermore,issues like pump vibration,bearing overheating,or abnormal noises can also affect sealing performance,requiring regular observation and inspection.

(Bonve Pumps Cam Rotor Pumps)

The inspection of the mechanical seal end face flatness must follow the JB/T7369-2011 standard,using the monochromatic light optical method.The inspection device should use a first-grade precision optical flat and be placed in a dry,clean,and vibration-free environment.The inspection ambient temperature should be controlled at(20±5)°C.After preheating the detector,clean the surfaces of the seal ring and the optical flat,bring them into close contact,and observe the interference pattern to interpret the number of interference spectrum bands.

The flatness measurement value is calculated using the formula Δ=0.5 Nλ(whereΔis the flatness measurement value inμm,N is the number of interference spectrum bands,andλis the monochromatic light wavelength inμm).For example,with sodium lightλ=0.6μm,one spectrum band corresponds to a flatness of 0.3μm.Simultaneously,the sealing surface can be judged as spherically convex or concave by moving the line of sight or gently pressing the optical flat.

During the repair process,six common misconceptions must be avoided.Do not assume that tighter spring compression,or tighter dynamic and static ring seals,are better.Excessive compression or tightening can cause friction pair wear,seal ring deformation,and breakage of graphite static rings.The impeller locking nut should be tightened appropriately;over-tightening can easily lead to failure of the shaft gasket.Shaft leakage is often caused by various factors like gasket damage or fitting errors.Do not rush to disassemble and repair at the first sign of leakage;in some cases,adjusting the operating conditions can resolve the issue.New seal components are not absolutely better than old ones;if the static ring is not excessively worn,continuing to use it in polymerizing media might actually provide a better sealing effect.

In summary,the core of maintaining and repairing the mechanical seal of a rotor pump lies in meticulous maintenance,professional and standardized inspection,and scientifically avoiding misconceptions.Only then can the sealing components perform optimally.

Bonve pump 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.