1. Core Features

Three-speed control technology: Supports speed switch adjustment (1/2/3 levels). When powered by single-phase power, the speed is 60%/80%/100% of the maximum speed respectively. When powered by three-phase power, the speed is 70%/85%/100% respectively. It adapts to the flow requirements of different systems. Low-speed operation can reduce energy consumption and noise.
Enclosed rotor design: The shaft seal-free structure uses a stainless steel rotor cover and ceramic bearings to eliminate the risk of leakage. The bearings are self-lubricated by the pumped medium.
Modular Protection System:

Standard Module: Requires an external contactor; has built-in thermal overload protection.
Protection module (optional): Directly connected to the power supply, providing overheat protection and fault indicator lights (green light for operation / red light for fault or incorrect direction).
Relay module (standard configuration for dual-head pumps): Supports operation/fault signal output, and can be set to alternate operation, standby operation or single pump mode.

2. Application Scenarios

Heating Systems: Suitable for single/dual pipe systems, underfloor heating, solar heating, etc.

Domestic Hot Water Circulation: Bronze pump housing models (such as UPS*F B series) meet drinking water standards.
Air conditioning system: compatible with refrigeration units, heat pumps and heat recovery systems.

3. Technological Advantages

High Efficiency and Energy Saving: The three-speed motor, combined with an optimized impeller design, provides an efficiency curve that covers a wide range of operating conditions.
Quiet operation: Noise level below 41 dB(A), enclosed rotor structure reduces vibration.
Durable materials: Pump housing is available in cast iron (PN6/PN10 pressure rating) or bronze (corrosion resistant).
Stainless steel rotor and carbon thrust bearings ensure long service life.
Intelligent control: Supports inverter compatibility (standard module model), dual-head pumps can automatically switch between main and standby pumps.

4. Typical Model Example

UPS 40-60/2 F 250: Flange interface, head 6m, flow rate 22m³/h, three-speed power 155-250W. UPSD 50-120 F 280: Twin-head pump design with a bronze pump housing, suitable for hot water circulation systems.

5. Additional Features

EMC Compatibility: Complies with EN 61000-6-2/3 electromagnetic compatibility standards.
Flexible Installation: Horizontal motor shaft orientation, adjustable terminal box positions, and flange connections for simplified piping integration.