Vertical Twin Variable Speed Booster Set – 320L/Min @ 11 Bar

The NT Cloke vertical twin variable speed booster set is engineered for demanding applications where both high flow and very high pressure are required.

Delivering up to 320 litres per minute at 11 bar, this system is ideal for large commercial buildings, high-rise developments, and installations where maintaining strong, consistent pressure across multiple levels is critical.

Featuring vertical multistage pumps, this system offers a compact footprint while providing improved access for servicing and maintenance. This design is often preferred by engineers and consultants, particularly in environments where uptime is essential and routine maintenance must be carried out efficiently.

Built with WRAS-approved stainless steel components, the system uses advanced variable speed inverter control to automatically adjust performance based on demand. This ensures stable pressure, improved energy efficiency, and reduced wear on system components.

Supplied as a fully assembled and pre-tested package, the booster set includes pumps, pressure vessel, controls, and fittings for straightforward installation.

In the event of water supply interruption, the system includes dry run protection with automatic shutdown and restart functionality to safeguard the pumps.

Product Features

• Delivers up to 320 litres per minute at 11 bar (combined output)
• Designed for high-pressure, high-demand commercial applications
• Vertical multistage pump design for space-saving installation
• Easier access for servicing and reduced maintenance time
• Maintains constant pressure with variable speed inverter control
• Built with WRAS-approved stainless steel pumps
• Operates in duty/assist or duty/standby configurations
• Supplied fully assembled and pre-tested before dispatch
• Integrated dry run protection with automatic shutdown and restart
• Includes 8-litre WRAS-approved pressure vessel
• Glycerine-filled pressure gauge for accurate monitoring
• Stainless steel fittings for durability

Optional Equipment

We offer a full range of optional equipment to complete your booster system installation, including:

• WRAS-approved water storage tanks
• GRP pump enclosures for external installations
• BMS-compatible control panels
• Anti-vibration mounts
• Pipework, valves, and fittings
• Backup components and replacement parts

Ideal For

• High-rise buildings and multi-storey developments
• Large commercial buildings and facilities
• Installations requiring very high pressure output
• Systems with significant pipe resistance
• Applications where consistent pressure is critical across multiple levels

Commissioning & Service

NT Cloke provides full commissioning, servicing, and ongoing maintenance support to ensure your booster system is installed correctly and operating efficiently.

Our engineers ensure your system is set up, tested, and running reliably from day one, particularly in critical high-demand environments.