Industry News

API 685 is the only standard within the API system specifically governing seal‑less centrifugal pumps. Its current edition is the 3rd Edition, July 2022. It covers two categories: magnetic‑drive pumps and canned‑motor pumps.

Teffiko recognizes that chemical pumps are equipment with high energy consumption in chemical production. Many factory pumps operate far from the best‑efficiency point for long periods, with flow regulated by valve throttling, resulting in substantial waste of electric energy. The losses of chemical pumps mainly fall into three categories: hydraulic loss, volumetric loss and pipeline leakage loss. Energy‑saving retrofitting requires systematic implementation covering selection, maintenance, components, speed regulation, pipelines, operation and maintenance, so as to achieve stable energy consumption reduction and mitigate faults such as cavitation and seal failure.

This guide is compiled and published by teffiko. teffiko specializes in industrial high-temperature fluid transfer and is committed to providing professional high-temperature centrifugal pump selection support and product solutions for the chemical, thermal power, and refining industries. We hope this guide will help engineers and procurement decision-makers match operating requirements more quickly and reduce the cost of trial and error in selection. For further technical consultation or product quotations, please contact the teffiko engineering team.

The G‑type single screw pump is an internal‑meshing rotary positive‑displacement pump. Its main working components consist of an eccentric screw rotor and a fixed rubber‑lined stator. As the screw rotates inside the stator, the two mesh to form a series of sealed cavities, which continuously push the medium from the suction end to the discharge end.

As environmental protection requirements keep tightening, projects including water resource recycling, solid‑waste disposal and waste‑gas treatment are growing more reliant on equipment stability. Within the entire fluid‑transport chain, centrifugal pumps stand out as the most widely used pump type in environmental‑protection projects, thanks to their simple structure, stable flow rate and convenient maintenance.

Teffiko screw pumps are widely used in chemical industry, sewage treatment, food slurry and other working conditions thanks to their stable conveying performance. However, even premium equipment requires standardized operation and maintenance. Proper maintenance of screw pumps directly determines service life, conveying efficiency and failure rate. Starting from the three core operational links of start‑up, operation and shutdown, this article provides clear maintenance cycles and definite answers to what oil should be filled into Teffiko screw pumps, helping users maintain the equipment and reduce unplanned downtime.