Circulation pump Mayer GPD 20-16 Z (500W)

The Mayer GPD 20-16 Z (500W) circulation pump is a high-performance unit designed for heavy-duty heating systems, DHW recirculation, and technological circuits. The model is equipped with a reinforced 500 W motor, ensuring stable heat-carrier circulation over long distances and under high hydraulic resistance.

Its “wet” rotor design provides quiet, smooth, and efficient operation, while motor cooling with the pumped liquid extends service life and reduces wear. The pump is ideal for large private houses, multi-storey systems, and complex piping layouts.

High head and performance

This model is engineered for systems requiring stable heat-carrier flow even along long lines and under heavy load. It maintains reliable circulation in complex heating circuits and DHW systems.

Powerful 500 W motor

▪️ ensures stable operation under all conditions;
▪️ resistant to voltage fluctuations;
▪️ provides high efficiency at elevated pressure levels.

Reinforced construction

▪️ Cast-iron housing protected against corrosion and mechanical stress.
▪️ Technopolymer impeller ensuring stable hydraulic performance.
▪️ Ceramic bearings — quiet operation and long service life.
▪️ AISI 304 stainless-steel rotor sleeve for enhanced protection.

Flexible adjustment

Multiple speed levels allow optimizing energy consumption, adapting the pump to different heating modes, and reducing stress on the system.

Where GPD 20-16 Z is used

Suitable for:
✔ heating of large private homes;
✔ multi-storey systems;
✔ long DHW recirculation loops;
✔ industrial heat exchangers;
✔ technological installations with high pressure requirements.

User benefits

▪️ Reliable operation with heat-carrier temperatures up to +110°C.
▪️ Quiet performance — suitable for residential environments.
▪️ Compact housing — easy installation and servicing.
▪️ Resistant to overheating and long-term loads.
▪️ Long service life ensured by high-quality materials and robust engineering.