BritTherm Automatic Сirculator Pump P4 Series P4 25/6-180 (661995607)

The BritTherm P4 25/6-180 Circulator Pump is a high-performance solution for larger domestic and light commercial heating systems. Featuring a 6-metre head and a 180mm body, this model is perfect for systems requiring extended spacing or direct replacement of longer pumps. With 11 automatic work modes and PWM compatibility, it's ideal for smart-controlled, energy-efficient setups using boilers, HIUs, or heat pumps.

Designed for powerful performance and intelligent control, the BritTherm P4 25/6-180 brings adaptability and efficiency to a wide range of heating applications. With 25mm ports and a 180mm body length, it provides a practical solution for systems with specific installation requirements.

This model supports 11 automatic work programmes, including AUTO mode for most installations, three constant pressure modes for underfloor heating, and three proportional pressure modes for varying flow rates. It also features three fixed-speed settings for compatibility with traditional systems.

A standout feature is its built-in PWM function, allowing remote speed control via low-voltage cables, fully compatible with control systems from major brands like Siemens and Honeywell. Safety is prioritised with built-in thermal and electrical protection, ensuring reliable performance even in demanding environments.

Features & Benefits:
✅ 25mm connections with extended 180mm body length
✅ 6-metre head – suitable for larger heating circuits and zoned systems
✅ 11 operating modes for maximum flexibility
✅ AUTO, proportional, and constant pressure control
✅ PWM compatibility for smart thermostats and BMS integration
✅ Excellent for underfloor heating and mixed radiator systems
✅ Electrical and thermal protection prevents pump damage
✅ One-button operation for quick setup
✅ Ideal for both new builds and replacement installations
✅ BritTherm quality for long-lasting performance

• Programs = 11 Control Programs with remote control function
• Maximum Head (Meters) = 6
• Flow (m3/h) = 3.2
• Power = 3~45
• Connection Size = 1 ½”
• Energy Efficiency Index Rating (EEI) = EEI≤ 0.20
• Maximum System Pressure (KPA) = 10 Bar
• Protection Class = IP44
• Temperature Class = TF 95°C
• Insulation Class = F
• Material = Cast Iron
• Supplied With (Loose in Box) = A set of threaded connections designed for fastening to pipes, high-temperature rubber gaskets, electrical cable 1.3 m long, pwm cable, insulation foam, data sheet and warranty instructions.

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