News

The 4th Changsha International Construction Equipment Exhibition held on May 15th to 18th, 2025

2025-05-20

Changsha PDM Machinery(Group) Co. , Ltd. participated in the "Emergency Equipment Industry Chain" and "Mining Equipment Special Zone",We participated in the exhibition with over 500 domestic and foreign exhibitors. Our dedicated area adopted a "confere...

CCEME 2025, 4.10-4.12 Changsha Intelligent Manufacturing Equipment Expo

2025-04-12

CCEME 2025, 4.10-4.12 Changsha Intelligent Manufacturing Equipment Expo  In the current era of rapid technological development, the wave of intelligence is sweeping across the globe, profoundly changing people's way of life and pr...

Prediction of the Development of Industrial Pumps in China in the Next 10 Years

2025-03-10

I come from Changsha PDM Machinery(Group) Co.,LTD. As a professional technician with nearly 30 years of experience in the pump industry and a manager in the export trade department, I have always been concerned about the development prospects of industria...

The principle of energy-saving water pump

2024-11-24

The principle of energy-saving water pump: The impeller of the ultra high efficiency energy-saving water pump is the heart of the pump, which determines the flow rate, head, and efficiency of the pump. The impeller design of the high-efficiency energy-sav...

How to make industrial pumps more energy-efficient to achieve energy saving?

2024-11-23

There are 3 ways by technology innovationWay 1: Rectification energy-saving device technologyOn the one hand, when the fluid passes through the inlet of the water pump, it collides with the liquid due to the rotation of the pump impeller, formin...

Calculation formula for balance force of balance plate in multi-stage pump

2024-11-22

Balance discs are commonly used in segmental multi-stage pumps, installed after the last stage impeller and rotating together with the rotor. There are two clearances in the balance device, one is the radial clearance formed by the outer circle of the sha...