Industry News

Liquid ring vacuum pumps are common industrial vacuum devices. Using liquid sealing, they create steady vacuum and cope with harsh conditions including high moisture, vapor, mild corrosion and flammable explosive media. They outperform conventional vacuum pumps with reliable performance and low maintenance costs, widely used for vacuum extraction, gas compression and material treatment as key industrial auxiliary gear. This paper briefly introduces their definition, applications, merits, operation principles, models and maintenance guidance.

Magnetic pumps adopt non-contact transmission via magnetic coupling without mechanical shaft seals, achieving zero leakage. They are widely used in chemical and pharmaceutical industries for transporting corrosive and toxic media. Standardized operation can prevent faults such as dry running and bearing damage, extending the service life of equipment by over 30%. Teffiko has comprehensively sorted out the core pros and cons, standard procedures and maintenance key points of magnetic pumps, aiming to provide professional reference basis for industrial model selection and daily operation & maintenance.

Calculation of the geometric suction lift Hg of a centrifugal pump is a core procedure in pump installation design. It directly determines whether cavitation will occur, whether the pump can draw water stably, and whether it can operate efficiently for a long time. Many faults such as insufficient water output, loud noise and vibration, impeller damage, and frequent equipment failures essentially stem from miscalculations of the geometric suction lift Hg or excessive installation height.

Sanitary screw pump seals endure prolonged harsh CIP, SIP and acid-alkaline treatment, and wrong material choices trigger seal damage, leakage, contamination and non-compliant production lines. Seal material selection thus needs balanced evaluation of wear, heat and corrosion resistance, sanitary rating and working condition adaptability.

Chemical pumps operate long-term under harsh working conditions involving corrosion, high temperatures, and high impurity content. Reliance on ingrained experience during routine maintenance can easily lead to repair misconceptions. These not only fail to eliminate faults fundamentally but also accelerate equipment wear and create potential safety hazards.

The shaft of Teffiko magnetic pump is manufactured from high-carbon chromium bearing steel. After heat treatment, its hardness reaches 58-62 HRC, delivering outstanding wear resistance and deformation resistance. However, during long-term operation, erosion by impurities, lubrication failure, dry running and overload may lead to shaft wear, bending, thread damage and keyway failure, which further cause vibration, abnormal noise and reduced flow rate. To avoid the high cost of replacing a brand-new shaft, this paper systematically sorts out the damage judgment criteria, complete repair procedures, maintenance precautions and assembly & commissioning key points for Teffiko magnetic pump shafts in accordance with industrial standards.