Ultrasafe Low‑Flow Systems

A modern, BS 9251:2021 compliant upgrade for outdated low flow cylinder systems

 

If your property has an Ultrasafe Low Flow system, it may need urgent attention

Between 2005 and 2018, many homes across the UK were fitted with an Ultrasafe Low‑Flow system. These systems used pressurised cylinders and mist heads instead of traditional sprinklers.

 

In order to comply with the The Pressure Equipment (Safety) Regulations 2016, a pressure stretch test (to 1.5 x operating pressure) should be conducted on each cylinder every 10 years. The regulation also requires the removal of old components and replacement with newer Fire Sprinkler components that improve the reliability of the system in line with current fire safety regulations.

 

At the time, they were innovative but today they face unavoidable problems

 

We Give You a Direct Replacement, Without Major Building Works

We developed a purpose built replacement solution a drop‑in upgrade to your system designed specifically for properties fitted with Ultrasafe Low Flow systems.

 

From our initial assessment we can confirm:

1. Whether your cylinders are due for testing

2. Whether your system is compliant

3. Whether an upgrade is recommended

4. The exact cost of replacing your low‑flow system

 

Your upgrade includes:

- Removal of the original cylinder‑based low flow unit

- Installation of a compact integrated pump & tank system with a similar footprint

- Replacement of mist heads with residential sprinkler heads in the existing positions

- Full System check and integrity testing 

- Full recommissioning and certification to BS 9251:2021

- Minimal disruption, typically completed within a single visit

 

We give you a modern, compliant, reliable sprinkler system without redesigning your property or carrying out invasive works

What Are The Problems with an Ultrasafe Low Flow System?

1. The cylinders are now due their mandatory 10‑year pressure test

Ultrasafe’s own guidance confirms that their low flow cylinders operate at 12 bar, meaning they legally require a hydrostatic pressure test every 10 years under the Pressure Equipment (Safety) Regulations.

2. The system does not comply with BS 9251:2021

The current residential sprinkler standard requires design, performance, and component criteria that the original low flow systems cannot meet.

3. Replacement parts are now scarce and increasingly expensive

Since the original supplier is no longer trading, sourcing compatible components individually (mist heads, valves, control boards, and cylinder fittings) has become more difficult and costly.
Many parts are now special‑order only, with long lead times and premium pricing due to limited availability.

Why Upgrading Makes More Sense Than Cylinder Testing

Cylinder testing is not only mandatory, it’s expensive and disruptive. The process involves:

  • Removing cylinders from site
  • Decanting and visually inspecting them
  • Pressure‑testing to 1.5× working pressure
  • Replacing valves, gauges, and seals
  • Reinstalling and recommissioning the system

And even after all that, you still end up with a system that does not meet BS 9251:2021.

 

This combination of compliance issues, testing requirements, and rising maintenance costs makes continued operation of these systems increasingly impractical.

Designed Specifically for Former Ultrasafe Customers

If You Have an Ultrasafe Low Flow System, You're part of a very specific group now facing the same issues:

  • Mandatory 10‑year cylinder testing
  • A system that no longer aligns with BS 9251:2021
  • A supplier that is no longer trading
  • Limited access to parts and support
  • Rising costs for even basic repairs

Our replacement solution was engineered exactly for this system type, and we’ve already supported many former Ultrasafe customers through the transition.

Future Proof Your Property for the Next 25 Years

Under BS 9251:2021, all residential sprinkler systems must undergo major intrusive testing at 25 years, including:

  • Hydrostatic pressure testing of pipework
  • Cutting out pipe sections for internal inspection
  • Removal and laboratory testing of sprinkler heads

Upgrading now resets the clock, giving you a brand‑new, fully compliant system with decades of trouble‑free operation ahead.