Targeted Control
Pre-Action Systems
OnFire Protection Ltd provides pre-action fire suppression systems designed for environments where accidental water discharge could cause significant damage. These systems are ideal for data centres, museums, archives, and healthcare facilities, offering dual-layer protection by combining the benefits of both dry and wet pipe systems. Pre-action systems only release water after both fire detection and sprinkler head activation, reducing the risk of false activation.
0
Sites Supported
0%
Emergency Response
0
Technical Engineers
Targeted Control
Pre-Action Systems
OnFire Protection Ltd provides pre-action fire suppression systems designed for environments where accidental water discharge could cause significant damage. These systems are ideal for data centres, museums, archives, and healthcare facilities, offering dual-layer protection by combining the benefits of both dry and wet pipe systems. Pre-action systems only release water after both fire detection and sprinkler head activation, reducing the risk of false activation.
1,100
Sites Supported
100%
Emergency Response
35
Technical Engineers
Pre-Action Systems
How Pre-Action Systems Work
Pre-action systems require a two-step process before water is released:
- Fire Detection: A fire alarm system detects heat or smoke, opening the pre-action valve and filling the pipes with water.
- Sprinkler Activation: Once a sprinkler head detects fire and activates, water is released to suppress the fire.
This dual-trigger mechanism prevents accidental discharge, making pre-action systems highly reliable for sensitive environments.
Applications for Pre-Action Systems
Pre-action systems are suited for environments where both fire protection and water damage prevention are critical. Common applications include:
- Data Centres & IT Rooms
- Museums & Archives
- Healthcare Facilities
- Libraries
- Telecommunication Hubs
- High-Value Commercial Properties
Single-Interlock Systems
Water enters the pipes after a fire detection system is triggered. This system provides fast suppression while still reducing the risk of false activation.
Double-Interlock Systems
Both the fire detection system and sprinkler head must activate before water enters the pipes. This offers maximum protection against accidental water discharge, ideal for highly sensitive environments.
Benefits of Pre-Action Systems
- Reduced Risk of Water Damage: Prevents accidental water discharge until multiple conditions are met.
- Enhanced Safety: Provides immediate suppression once both triggers are activated.
- Reliable Protection: Ideal for environments with valuable or sensitive assets.
- Regulatory Compliance: Fully compliant with BS EN, NFPA, and other fire safety standards.
Maintenance & Testing Services
Pre-action systems require regular maintenance to ensure optimal performance. We provide:
- Valve Testing: Ensuring proper activation of single or double-interlock valves.
- Sprinkler Head Inspections: Checking for blockages and physical damage.
- Fire Detection System Testing: Verifying that detection devices work seamlessly with the suppression system.
Why Choose OnFire Protection?
Tailored Approach
We understand that every property and project is unique. Our fire suppression systems are designed to your exact needs, ensuring maximum protection with minimal disruption.
Unrivalled Expertise
Our highly trained engineers bring extensive knowledge to every project, guaranteeing precision, reliability, and excellence in all installations and servicing.
Comprehensive Services
From initial design to ongoing maintenance, we deliver end-to-end support to keep your fire protection systems operating at peak performance.
Trusted Nationwide
Built on trust and professionalism, our reputation reflects our dedication to delivering exceptional results for clients throughout the UK.
Protecting What Matters Most
Fire safety isn’t just about systems – it’s about safeguarding lives, property, and livelihoods.
Why Choose OnFire Protection?
Tailored Approach
We understand that every property and project is unique. Our fire suppression systems are designed to your exact needs, ensuring maximum protection with minimal disruption.
Unrivalled Expertise
Our highly trained engineers bring extensive knowledge to every project, guaranteeing precision, reliability, and excellence in all installations and servicing.
Comprehensive Services
From initial design to ongoing maintenance, we deliver end-to-end support to keep your fire protection systems operating at peak performance.
Trusted Nationwide
Built on trust and professionalism, our reputation reflects our dedication to delivering exceptional results for clients throughout the UK.
Protecting What Matters Most
Fire safety isn’t just about systems – it’s about safeguarding lives, property, and livelihoods.
© 2025 Copyright | OnFire Protection Ltd | All Rights Reserved. Privacy Policy. Terms & Conditions
© 2025 Copyright | OnFire Protection Ltd | All Rights Reserved. Privacy Policy. Terms & Conditions