Industry News

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.

Chemical pumps are core equipment used in chemical, petrochemical, pharmaceutical and environmental protection industries to transport corrosive, high-viscosity, particle-laden, flammable and explosive media. Many technical procurement personnel tend to confuse pump models during type selection. Teffiko, an expert in fluid equipment, has sorted out a complete classification and selection framework based on practical working conditions.

Dry running (dry operation/idling) of a centrifugal pump refers to an abnormal operating condition where the pump cavity lacks liquid, has insufficient liquid volume or loses suction fluid while the pump keeps running. It is a highly destructive fault that frequently occurs in industrial centrifugal pumps. Centrifugal pumps rely on conveyed liquid for lubrication, cooling and hydraulic pressure stabilization. Once deprived of medium protection, internal components will rub directly against each other and accumulate heat rapidly. Even a short period of idling can cause irreversible damage and even complete pump failure leading to shutdown.