Circulation pump Mayer GPD 25-16 (700W)

The Mayer GPD 25-16 (700W) circulation pump is a reliable and powerful unit designed for stable operation in heating systems, domestic hot-water supply, and technological circuits requiring increased head and continuous flow. With its 700 W motor, the pump provides efficient circulation even in systems with long pipelines and high hydraulic resistance.

The “wet” rotor design ensures quiet operation, eliminates the need for additional maintenance, and makes this pump an excellent choice for private houses, cottages, commercial facilities, and complex heating layouts.

High performance for demanding systems

The pump’s capacity is sufficient to provide stable heat-carrier circulation across multi-storey buildings, long pipelines, boiler rooms, and extensive radiator setups.

Wet-rotor technology

▪️ The motor is cooled by the pumped liquid.
▪️ Minimal noise during operation.
▪️ Significantly extended service life of bearings and components.

Strong and durable construction

▪️ Cast-iron body with corrosion protection.
▪️ Heat-resistant polymer impeller.
▪️ Ceramic bearings for smooth and quiet performance.
▪️ AISI 304 stainless-steel rotor sleeve.

Ease of control

Three-speed adjustment allows selecting the optimal operating mode — from economical performance to maximum head output.

Where the GPD 25-16 is used

Ideal for:
✔ large private houses and townhouses;
✔ multi-storey heating systems (2–3 levels);
✔ long DHW recirculation circuits;
✔ multi-loop setups (radiators + underfloor heating);
✔ small boiler rooms and commercial systems.

User benefits

▪️ Near-silent operation — suitable for residential installation.
▪️ Protection against overheating and rotor blockage.
▪️ Reliable operation with heat-carrier temperatures up to +110°C.
▪️ Easy installation thanks to standard connection dimensions.
▪️ Long service life ensured by robust materials.