Knowledge

Rubber vs metal bellows is a practical comparison of flexibility, temperature resistance, chemical compatibility, cost, and pump fit. Both designs […]

Learn how balanced and unbalanced mechanical seals differ in hydraulic loading, operating range, heat generation, design complexity and application selection.

Compare single and double mechanical seals by leakage control, operating environment, support-system requirements, complexity and typical pump applications.

Learn how to select mechanical seal faces, elastomers and metal components for seawater pumps while reducing corrosion and wear risks.

Select mechanical seals for acids and corrosive fluids by checking chemical compatibility, temperature, concentration, seal faces, elastomers and metal parts.

Select food-grade mechanical seals from the complete hygienic duty, not from appearance or shaft size alone. Dairy and beverage pumps

Select hot water mechanical seals from the actual seal-chamber conditions, not from water temperature alone. Pressure, local face temperature, vapor

Evaluate wastewater mechanical seal materials from the actual liquid, solids, chemistry, and pump condition—not from the word “wastewater” alone. Sewage

A reliable Wilo mechanical seal replacement starts with the exact pump identity, not the Wilo name alone. “Wilo pump,” “Wilo

EBARA submersible pump seal failure often begins with contaminated seal-chamber oil, abrasive solids, dry operation, excessive vibration, unsuitable materials, or