5 Key Parameters Before Purchasing a Magnetic Gear Pump

Introduction

Choosing a magnetic gear pump is not just about selecting equipment, but a crucial stage that affects the stability of the technological process, dosing accuracy, and the service life of the entire system.

Errors during the selection phase can lead to reduced productivity, equipment wear, and additional costs.

---

1. Viscosity of the working fluid

Viscosity is one of the most important parameters when choosing a pump.

• Low viscosity: water, solvents
• Medium viscosity: oils, chemical solutions
• High viscosity: resins, adhesives, thick liquids

Incorrect selection leads to pump overload or unstable operation.

---

2. Required flow rate (performance)

Flow rate determines how much fluid the pump must transfer per unit of time.

It is important to consider:

• constant or variable operating mode
• the need for precise dosing
• flow stability

---

3. Operating pressure

Pressure affects the load on the pump and the system design.

• low pressure — standard tasks
• medium pressure — industrial application
• high pressure — specialized series (MGH / MGS)

---

4. Chemical compatibility

Pump materials must match the working environment:

• 316L — universal liquids
• PTFE — aggressive chemicals
• PEEK — high resistance
• FFKM — extreme conditions

Incorrect selection leads to rapid component failure.

---

5. Working fluid temperature

Temperature affects viscosity and pump operation stability.

• low temperatures — fluid thickening
• high temperatures — reduced viscosity and load on seals

Special series are used for extreme conditions (e.g., MGT).

---

Typical errors in pump selection

• ignoring fluid viscosity
• choosing a pump based solely on price
• failure to consider the chemical environment
• incorrect pressure assessment
• choosing a pump without technical consultation

---

Conclusion

The correct selection of a magnetic gear pump requires a comprehensive consideration of five key parameters: viscosity, flow rate, pressure, chemical compatibility, and temperature.

If you are unsure about your choice, Macxi specialists will help you select the optimal solution for your process.

---

📌 CTA

Get a pump selection
Download catalog
Contact an engineer