Circulation pump Mayer GPD 25-12

The Mayer GPD 25-12 circulation pump is a reinforced model designed for systems with long piping networks and high pressure requirements. It is ideal for large private homes, commercial buildings, boiler rooms, multi-loop heating systems, and industrial equipment.

The pump features a powerful hydraulic block, an extended performance range, and stable operation even under maximum load. Its reliable “wet” rotor design ensures low noise and long-lasting durability of all internal components.

High pressure — for large systems

The model is engineered for efficient heat-carrier circulation over long distances, providing uniform heating and stable system performance even in multi-storey buildings and extensive pipeline layouts.

Reinforced motor and durability

▪️ Enclosed asynchronous motor.
▪️ Ceramic bearings for silent operation.
▪️ AISI 304 stainless-steel rotor sleeve.
▪️ Solid cast-iron base.
▪️ Designed for continuous operation under heavy load.

Three-speed control

Allows selecting the optimal performance level, adapting the pump to the heating or DHW circuit, reducing energy consumption and extending equipment life.

Versatile application

The model is used in:
✔ large heating systems;
✔ multi-loop setups with radiators and underfloor heating;
✔ industrial heat exchangers;
✔ DHW systems with long pipelines and recirculation.

Operational benefits

▪️ Extremely low noise — suitable for installation in residential spaces.
▪️ Excellent resistance to high heat-carrier temperatures (up to +110°C).
▪️ Compatible with clean water and glycol mixtures up to 30%.
▪️ Easy installation with standard connection sizes.
▪️ Protected against overheating, wear, and corrosion.