Designed to be compact and enclosed, the Flexfiller Midi pairs an electronic pressure transducer with a user-friendly microprocessor to maintain minimum system pressure with precision.

Wall-mounted top-up pressurisation unit, with a 4 Ltrs internal break tank, the unit delivers flow rates up to 12 L/min. It suits commercial, industrial and large domestic installations and is available in single or twin-pump configurations for sealed LPHW/CHW, refrigeration and process systems (guide volume up to 50,000 Ltrs).

• Digital control with electronic pressure transducer
• 4 Ltrs break tank; up to 12 L/min top-up
• MODBUS RTU integration; password-protected access
• Category 5 protection (AB weir overflow)

A compact white (RAL 9003) enclosure simplifies installation and commissioning, while diagnostics, logging and BMS-friendly comms streamline ongoing operation.

Engineered for sealed systems, the Flexfiller combines an electronic pressure transducer with a user-friendly microprocessor to maintain minimum system pressure with precision.

Floor-standing with an 18 Ltrs internal break tank, it delivers top-up flow rates up to 18 L/min. Ideal for commercial, industrial and large domestic applications, Flexfiller is available in single or twin-pump configurations.

• Digital control with electronic pressure transducer
• 18 Ltrs break tank; up to 18 L/min top-up
• MODBUS RTU integration; password-protected access
• Category 5 protection (AB weir overflow)

Guide system volume up to 300,000 Ltrs. Black enclosure (RAL 9005). Power options: 230V 50Hz 1ph or (2160D) 415V 50Hz 3ph.

Engineered for sealed systems, the Flexfiller combines an electronic pressure transducer with a user-friendly microprocessor to maintain minimum system pressure with precision.

Floor-standing with an 18 Ltrs internal break tank, it delivers top-up flow rates up to 18 L/min. Ideal for commercial, industrial and large domestic applications, Flexfiller is available in single or twin-pump configurations.

• Digital control with electronic pressure transducer
• 18 Ltrs break tank; up to 18 L/min top-up
• MODBUS RTU integration; password-protected access
• Category 5 protection (AB weir overflow)

Guide system volume up to 300,000 Ltrs. Black enclosure (RAL 9005). Power options: 230V 50Hz 1ph or (2160D) 415V 50Hz 3ph.

Designed for tight plant rooms, this mechanical, fully enclosed pressurisation unit 130HL maintains minimum system pressure on sealed circuits with an electronic pressure transducer and simple, reliable controls.

The narrow, wall-mounted design provides a 0.4 L/min top-up rate via a 2 Ltrs internal break tank, making it ideal for large residential or small commercial applications.

• Low-flow top-up: up to 0.4 L/min
• Compact wall mount with narrow footprint
• 2 Ltrs break tank with Type AB air gap (Fluid Category 5)
• Sealed systems: suitable for heating and chilled water

Recommended for sealed heating systems using an expansion vessel of ≤ 300 Ltrs or chilled systems with an expansion vessel of ≤ 50 Ltrs; guide system volume < 2,600 Ltrs.

Purpose-built for sealed systems, the Flamco Flexfiller 2160D (17393) combines an electronic pressure transducer with a user-friendly microprocessor to maintain minimum system pressure with precision.

This floor-standing unit delivers top-up flow rates up to 18 L/min via an 18 Ltrs internal break tank. Max pressure, 14.4 bar. Ideal for commercial, industrial and large domestic applications, it's available in single or twin-pump configurations and supports sealed LPHW/CHW systems (guide volume up to 300,000 Ltrs).

• Category 5 protection (Type AB weir overflow)
• MODBUS RTU integration; password-protected access
• 0.1 Bar incremental pressure setting; system fill mode
• Service reminder after 12 months

Finished in black (RAL 9005), the cabinet is powder-coated mild steel with WRAS-approved float, polypropylene break tank, brass/PP connections and braided flexhose/EPDM/copper pipework; valves are brass with PTFE seats.

The Stuart Turner SPU 130 Mini Pressurisation Unit is perfect for domestic use.

Quick and simple installation. Housed in a compact and robust housing for easy wall mounting.

Comes with category 5 backflow protection, Type AB air gap , weir overflow and warning pipe.

ISO 9001:2015

BS EN 60335 compliant

CE compliant

WRAS Compliant.

Comes complete with 2 years warranty.

The Stuart Turner SPU 230 Mini Pressurisation Unit is perfect for domestic use.

Quick and simple installation. Housed in a compact and robust housing for easy wall mounting.

Comes with category 5 backflow protection, Type AB air gap , weir overflow and warning pipe.

ISO 9001:2015

BS EN 60335 compliant

CE compliant

WRAS Compliant.

Comes complete with 2 years warranty.

The Stuart Turner SPU 135 Midi Pressurisation Unit is perfect for domestic use.

Quick and simple installation. Housed in a compact and robust housing for easy wall mounting. This pump can also be floor mounted.

For ease of installation the midi range comes with a configurable option for the flexible hose outlet connection of either left or right handed.

Comes with category 5 backflow protection, Type AB air gap , weir overflow and warning pipe.

ISO 9001:2015

BS EN 60335 compliant

CE compliant

WRAS Compliant.

Comes complete with 2 years warranty.

The Stuart Turner SPU 150 Midi Pressurisation Unit is perfect for domestic use.

Quick and simple installation. Housed in a compact and robust housing for easy wall mounting. This pump can also be floor mounted.

For ease of installation the midi range comes with a configurable option for the flexible hose outlet connection of either left or right handed.

Comes with category 5 backflow protection, Type AB air gap , weir overflow and warning pipe.

ISO 9001:2015

BS EN 60335 compliant

CE compliant

WRAS Compliant.

Comes complete with 2 years warranty.

The Stuart Turner SPU 235 Midi Pressurisation Unit is perfect for domestic use.

Quick and simple installation. Housed in a compact and robust housing for easy wall mounting. This pump can also be floor mounted.

For ease of installation the midi range comes with a configurable option for the flexible hose outlet connection of either left or right handed.

Comes with category 5 backflow protection, Type AB air gap , weir overflow and warning pipe.

ISO 9001:2015

BS EN 60335 compliant

CE compliant

WRAS Compliant.

Comes complete with 2 years warranty.

Digital Pressurisation Unit

MID-RANGE POWER WITH PEAK OPERATION

The Mikrofill MIDI is a flexible and high-performance pressurisation pump designed to maintain pressure in large domestic and light commercial sealed systems, including heating systems, chilled water systems, refrigeration pumps, and industrial cooling systems. Featuring continuously rated brass peripheral pumps, the MIDI ensures reliable operation with minimal maintenance.

Thanks to its compact design, the Mikrofill MIDI can be wall or floor mounted, making it exceptionally easy to install and commission. With a cold fill pressure of up to 4.1 bar. and an 8-litre tank capacity, the pump is built to meet the demands of systems up to 150,000 litres.

The advanced digital control system and automated fill and top-up functions guarantee precise pressure management. Its high flow, KIWA-approved fill valve and flexible connection options add to its ease of use and efficiency.

Designed for consistent performance and built for durability, the Mikrofill MIDI is the ideal solution for both heating and cooling applications, providing seamless pressure control with minimal maintenance.

The Mikrofill MINI SPU130 - 3 bar. is a compact, digital pressurisation unit for domestic and light commercial sealed systems — covering LPHW, CHW, refrigeration and industrial cooling.

Wall-mounted for easy install and commissioning, it delivers a 3.0 Bar cold fill and integrates a 2 Ltrs tank, making it ideal for systems up to 6,000 Ltrs.

• Digital control with LED display
• Automated top-up for consistent pressure
• High-flow, KIWA-approved fill valve
• Category 5 backflow protection (Type AB air gap)

Outlet can be configured left or right using the supplied flexible hose, keeping installs neat in tight plant spaces.

The Mikrofill MIDI SPU135 Pressurisation Unit is a versatile pressurisation unit for larger domestic and light commercial sealed systems — covering LPHW, CHW, refrigeration and industrial cooling. Floor or wall mountable.

Its compact design allows wall or floor mounting for fast installation and commissioning. An advanced digital control system with automated fill and top-up ensures precise pressure management, supported by a high-flow, KIWA-approved fill valve and flexible connection options.

• Mid-range power for systems up to 150,000 Ltrs
• Digital control with LCD display
• Automated system fill & top-up
• Compact footprint — wall or floor mount

With an 8 Ltrs integral tank and cold fill capability to 4.1 Bar, inlet and outlet can be configured left or right using the supplied flexible hoses. Category 5 backflow protection (Type AB air gap) adds safety and compliance.

The Mikrofill MIDI SPU135 Pressurisation Unit is a versatile pressurisation unit for larger domestic and light commercial sealed systems — covering LPHW, CHW, refrigeration and industrial cooling. Floor or wall mountable.

Its compact design allows wall or floor mounting for fast installation and commissioning. An advanced digital control system with automated fill and top-up ensures precise pressure management, supported by a high-flow, KIWA-approved fill valve and flexible connection options.

• Mid-range power for systems up to 150,000 Ltrs
• Digital control with LCD display
• Automated system fill & top-up
• Compact footprint — wall or floor mount

With an 8 Ltrs integral tank and cold fill capability to 4.1 Bar, inlet and outlet can be configured left or right using the supplied flexible hoses. Category 5 backflow protection (Type AB air gap) adds safety and compliance.

The Mikrofill MIDI SPU135 Pressurisation Unit is a versatile pressurisation unit for larger domestic and light commercial sealed systems — covering LPHW, CHW, refrigeration and industrial cooling. Floor or wall mountable.

Its compact design allows wall or floor mounting for fast installation and commissioning. An advanced digital control system with automated fill and top-up ensures precise pressure management, supported by a high-flow, KIWA-approved fill valve and flexible connection options.

• Mid-range power for systems up to 150,000 Ltrs
• Digital control with LCD display
• Automated system fill & top-up
• Compact footprint — wall or floor mount

With an 8 Ltrs integral tank and cold fill capability to 4.1 Bar, inlet and outlet can be configured left or right using the supplied flexible hoses. Category 5 backflow protection (Type AB air gap) adds safety and compliance.

The Mikrofill MAXI AP 280 Pressurisation Unit is a high-capacity, floor-standing solution for large domestic, commercial and industrial sites. It maintains stable pressure across sealed LPHW, CHW, refrigeration and industrial cooling systems.

Quick to install and commission, MAXI AP 280 uses an advanced microprocessor-controlled platform with Ai100 technology for accurate, efficient management. Choose single or twin-pump configurations with intuitive digital controls and real-time status.

• BMS-ready: Modbus RTU plus 4 programmable volt-free relays
• Cold fill options: up to 3.9“8.0 Bar (model dependent)
• Protection: Category 5 backflow with Type AB air gap
• Robust build: powder-coated steel casing with adjustable feet

Self-diagnostics and leak detection (frequency-of-starts alarm) support long-term reliability, while enhanced models integrate seamlessly with Building Management Systems.