Pumps on Sino Industry

How to Choose an Industrial Pump

Tue, 08 Sep 2026 00:00:00 +0000

Choosing an industrial pump starts with the system, not the catalogue. A useful specification describes what the liquid must do, the conditions at the pump connections, and how the duty changes over time. Only then can a buyer compare pump families, sizes, materials, seals, drivers, and controls without treating a single headline flow rate as the whole requirement.

Centrifugal Pump vs Positive Displacement Pump

Thu, 27 Aug 2026 00:00:00 +0000

Centrifugal pumps are usually the practical first choice for clean, low-viscosity liquid at moderate pressure and steady flow. Positive displacement pumps become stronger candidates when viscosity is high, flow must remain closely tied to speed, pressure is high relative to flow, or accurate low-rate transfer matters. The correct choice depends on the complete operating envelope—not on which family can meet one quoted duty point.

NPSH Explained for Pump Buyers

Thu, 16 Jul 2026 00:00:00 +0000

Net positive suction head is a way to express how much suction-side pressure remains above the liquid’s vapour pressure at the pump reference point. Buyers do not need to treat it as an abstract catalogue term: it is the margin that helps liquid remain liquid as it enters the pump. If that margin becomes too small, vapour can form in low-pressure regions and collapse as pressure recovers, reducing performance and potentially damaging the pump.