Flamco Pro PU 181 Digital Pressurisation Unit – Single Pump – 1–8 Bar

The Flamco Pro PU 181 Digital Pressurisation Unit provides intelligent pressure maintenance for sealed heating and chilled water systems. It continuously monitors system pressure and automatically replenishes water whenever the pressure falls below the programmed setting. As a result, boilers, pumps, heat exchangers, valves, and associated pipework remain protected while the entire system operates safely and efficiently.

Designed for demanding commercial environments, this floor-standing pressurisation unit combines advanced digital technology with dependable performance. Furthermore, it delivers a maximum operating pressure of 8 Bar and a maximum flow rate of 18 litres per minute, making it suitable for large HVAC systems that require accurate and reliable pressure management. Its compact footprint also allows straightforward installation in plant rooms where space is limited.

Intelligent Digital Pressure Management

The advanced microprocessor controller automatically controls filling operations and continuously monitors system pressure. In addition, the digital display provides real-time operating information, alarm notifications, and service reminders, allowing maintenance engineers to monitor system performance with ease.

Pressure settings can be adjusted in fine increments, giving installers greater flexibility during commissioning. Moreover, the electronic pressure transducer delivers highly accurate readings, ensuring stable pressure is maintained throughout daily operation. Consequently, the system performs more efficiently while reducing unnecessary wear on connected equipment.

Reliable Single Pump Performance

The integrated single pump is engineered for continuous commercial operation. It restores pressure quickly whenever required and maintains consistent performance under varying operating conditions. Likewise, the automatic filling function reduces manual maintenance and improves overall system reliability.

The built-in 18-litre break tank supports safe water management while helping the installation comply with current water regulations. Furthermore, the durable powder-coated steel enclosure protects internal components and provides long-term reliability in demanding plant room environments.

Advanced Safety and Monitoring Features

The unit includes several intelligent protection systems that help prevent equipment damage and reduce maintenance costs. Therefore, it features dry-run protection, anti-seize pump protection, flood protection, pump runtime monitoring, and comprehensive event logging. These features improve operational safety while extending component life.

In addition, MODBUS RTU communication enables seamless integration with Building Management Systems (BMS), allowing engineers to monitor and control the pressurisation unit remotely. Password-protected programming also prevents unauthorised changes to system settings, improving overall operational security.

Ideal Applications

This pressurisation unit is suitable for offices, hospitals, schools, hotels, manufacturing facilities, apartment developments, and other commercial buildings with sealed heating or chilled water systems. Moreover, its intelligent controls, energy-efficient operation, and dependable performance make it an excellent choice for both new installations and replacement projects.

Whether specified for a new HVAC system or upgrading an existing installation, the Flamco Pro PU 181 Digital Pressurisation Unit delivers reliable automatic pressure maintenance, intelligent digital monitoring, and long-lasting commercial performance.

Browse our Flamco Pressurisation Units collection to discover additional pressure maintenance solutions for commercial and industrial systems.

Key Features

• Single high-performance pump
• Maximum operating pressure: 8 Bar
• Maximum flow rate: 18 Ltr/min
• Floor-standing compact design
• 18-litre integrated break tank
• Digital microprocessor controller
• Automatic pressure monitoring
• Automatic filling function
• Electronic pressure transducer
• Pressure adjustment in 0.1 Bar increments
• Dry-run protection
• Anti-seize pump protection
• Flood protection
• Event logging
• MODBUS RTU communication
• Password-protected programming
• Volt-free alarm outputs
• Category 5 backflow protection
• WRAS-approved components

Benefits

• Maintains accurate system pressure automatically
• Protects boilers, pumps, valves, and pipework
• Reduces manual maintenance requirements
• Improves HVAC system efficiency
• Integrates with Building Management Systems
• Delivers dependable long-term commercial performance
• Suitable for large sealed heating and chilled water systems