What Is a Screw Pump? Working Principle, Types, Parts, and Selection
- Sep 04, 2026
- Hits: 218
A screw pump must be selected around the fluid, required flow, differential pressure and suction condition, not appearance or family name alone. A screw pump is a rotary positive-displacement pump that...
Top 10 Centrifugal Pump Suppliers in China 2026: Manufacturer Comparison and Buying Guide
- Aug 13, 2026
- Hits: 297
Choosing a centrifugal pump supplier in China is not only about finding the lowest quotation. A pump that looks affordable on the first invoice can become expensive if the flow rate is wrong,...
What Is Pump Total Head (TDH)
- Sep 24, 2025
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The term “total head” (H) is used to describe the energy in pumping systems and is how manufacturers represent the performance of their pumps as a function of flow rate. Total head is also...
What is Pump Head Loss
- Sep 24, 2025
- Hits: 157
What is Pump Head Loss Head loss refers to the total pressure losses sustained by the fluid as it flows from the suction point to the discharge point. Head loss is caused when the liquid loses momentum...
What is a Sewage Pump and How Does It Applys for Work
- Jan 30, 2023
- Hits: 310
A sewage pump transfers sewage medium at site When it comes to residential, sewage includes of soft solids that have a diameter of up to 2 inches. The sewage is propelled from the sewage basin to a septic...
Basic information required for pump selections
- Jan 02, 2023
- Hits: 142
Basic information required for all pump selections With the following information, we are able to make a basic pump selection; Liquid type Knowing the liquid that you are pumping is crucial as it let...
Applications, Characteristics and Main Parts of Screw Pump
- Oct 12, 2022
- Hits: 1511
Main parts of screw pump are: Inlet & Outlet Ports Driver Screw Timing Gear Bearings Driven Screw Pressure Relief Valve Driving Shaft Driver Screw It’s a screw pump’s spinning component....
Pump knowledge: What Is Screw Pump?
- Oct 12, 2022
- Hits: 296
What Is Screw Pump? A screw pump is a positive displacement (PD) pump that uses one or more screws to move fluid solids or liquids along the screw axis. In its simplest form, a single screw rotates in...
Pump knowledge: What is a Pump Shaft Seal?
- Jul 24, 2022
- Hits: 359
What is a pump shaft seal? Shaft seals prevent liquid escaping from a rotating or reciprocating shaft. This is important for all pumps and in the case of centrifugal pumps several sealing options will...
Differences Between Pump Motor 50Hz and 60Hz Frequency?
- Jun 03, 2022
- Hits: 5202
50Hz vs 60Hz in operating speed The primary difference between 50 Hz (Hertz) and 60 Hz (Hertz) is, well, 60Hz is 20% higher in frequency. For a generator or induction motor pump (in simple terms) it means...
Principle of Pump Selection
- Apr 21, 2022
- Hits: 189
Principle of Pump Selection Pump selection is according to the pump's working environment and conditions, normal operation of pump required performance parameters, as well as the physical and...
Basic Elements of Pump Design and Selection
- Apr 21, 2022
- Hits: 421
Basic elements of pump design and selection (a) the main performance parameters of the pump Pump performance parameters are mainly flow and head, in addition to shaft power, efficiency, speed and the...