Circulation Pump WITA go.future 2, 40-25-130

Product detailed description

This circulation pump is commonly used in residential and commercial buildings where heating and water systems require precise flow control. Installers and technicians working with central heating systems, domestic hot water circuits, or radiant floor heating will benefit from the proportional pressure control and low energy consumption. The pump adapts its capacity to the current demands of the system, reducing energy use by up to 80% compared to conventional models.

Designed for environments with ambient temperatures between 0°C and 40°C, the pump can handle media temperatures ranging from +5°C to +110°C. It supports system pressures up to 1.0 MPa and is compatible with a range of pipe sizes, making it suitable for both new installations and retrofit applications.

Technical parameters

Installation and connection

Installers should ensure the pump is mounted on a stable surface with sufficient clearance for maintenance. The pump is available in connection sizes DN15, DN20, DN25 and DN32 with threaded or flanged connections, depending on the installation. It is important to align the pump with the flow direction indicated on the body and to secure all connections properly to avoid leaks. Common installation errors include incorrect orientation, insufficient pipe support and neglecting to bleed the system after installation.

Compatibility and accessories

This pump integrates well with standard heating systems, including those with thermostatic valves and zone controls. For enhanced functionality, the pump can be connected to a PWM module for more precise speed control. Additional accessories such as pressure gauges and flow meters may be required for monitoring performance. Installers should also consider ordering spare parts such as gaskets and seals to facilitate future maintenance.

Technical background for designers

The WITA go.future 2 operates using a proportional pressure control system, adjusting its output based on the system’s demand. This ensures consistent performance while minimising unnecessary energy use. The pump housing is made of either brass or an aluminium alloy with a protective coating, offering durability and corrosion resistance. The IP42 rating means it is protected against dust and splashing water, making it suitable for indoor use. Long-term efficiency depends on regular maintenance and correct installation, including proper alignment and system balancing.

Service and operation

Periodic checks should include verifying the pump’s operation under load, inspecting for unusual noise or vibration, and ensuring the motor remains cool during operation. The pump includes a built-in anti-jamming function to prevent damage from blockages. No external motor protection is required. While no specific service intervals are provided, routine inspections are recommended to maintain optimal performance and extend service life.

Frequently asked questions

Can the pump be controlled via a PWM signal?
Yes, the pump is available with a PWM input, allowing for variable speed control based on the system's requirements.

Is the pump suitable for use with solar thermal systems?
Yes, provided the system operates within the specified temperature and pressure limits and the flow requirements match the pump’s capabilities.

What is the maximum allowable temperature of the fluid?
The pump is rated for media temperatures up to +110°C, making it suitable for most heating applications.

Can the pump be operated in a low-power mode at night?
Yes, the pump includes a night mode function that reduces energy consumption during off-peak hours.