Understanding Displacement per Revolution in Positive Displacement Pumps
Understanding Displacement per Revolution in Positive Displacement Pumps

When comparing pump specifications, many buyers focus only on maximum flow rate. However, for positive displacement pumps, there is a much more fundamental parameter: Displacement per Revolution (often called displacement volume).Whether you...

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Pump Pressure Guide: Understanding Maximum Discharge Pressure and System Safety
Pump Pressure Guide: Understanding Maximum Discharge Pressure and System Safety

When sourcing pumps, Maximum Discharge Pressure (or Maximum Outlet Pressure) is a critical parameter. Positive displacement pumps will keep pushing fluid against resistance until something breaks...

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Port Selection Guide: Understanding Inlet and Outlet Sizes for Gear, Screw, and Lobe Pumps
Port Selection Guide: Understanding Inlet and Outlet Sizes for Gear, Screw, and Lobe Pumps

When designing a production line or replacing an old unit, one of the most critical decisions is choosing the right pump port connections. The inlet and outlet sizes of your pump directly affect your flow rate, system pressure, and the overall lifespan of your equipment. If your ports are too small, your pump will starve. If the connection type is wrong, you risk leaks, fluid contamination, or costly downtime. As a dedicated manufacturer of industrial and hygienic pumping solutions, we created this port selection guide to help you understand how inlet and outlet sizes work across internal gear pumps, sanitary twin-screw pumps, and lobe rotor pumps...

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Understanding Nominal Flow Rate in Pumps
Understanding Nominal Flow Rate in Pumps

When reading a pump specification sheet, the first number most buyers look at is the flow rate. It tells you how much liquid the pump can move. However, you will often see this listed as the Nominal Flow Rate (sometimes called Rated Flow Rate). But what does "nominal" actua...

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Pump Glossary: Maximum Speed (RPM) of Internal Gear Pumps vs. Sanitary Twin-Screw Pumps
Pump Glossary: Maximum Speed (RPM) of Internal Gear Pumps vs. Sanitary Twin-Screw Pumps

Maximum speed is the highest speed a pump can safely run, measured in RPM. It determines pump wear, fluid damage risk, and efficiency. Internal gear pumps typically run at 500–1,500 RPM for thick fluids, while sanitary twin-screw pumps reach 3,000–3,600 RPM, offering dual-duty transfe...

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Rotary Lobe Pump Sizing Guide: How to Match Flow Rate with Frame Size
Rotary Lobe Pump Sizing Guide: How to Match Flow Rate with Frame Size

When purchasing a sanitary rotary lobe pump, the most common question buyers ask is: 'My factory requires a specific hourly capacity, so which frame size (model) should I choose?' A rotary lobe pump is a positive displacement pump. Its flow rate is tightly connected to the frame size, displacement per revolution, and operating speed. Below is a professional sizing guide to help...

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