Fire Suppression Systems

Keep your kitchen safe

Modern kitchens are often a prime threat in terms of fires because they have constant high temperatures and flammable liquids.

Dolphin Catering Fabrications supply fire suppression systems to safeguard against the eventuality.

Our systems work mainly via water mist, which is released from nozzles above the kitchen appliances and works to tackle fires, not only by cooling but also by reducing the oxygen take up of the fire, thus also preventing further damage to your vital equipment.

This is being specified more by insurance companies as they recognise that a kitchen in a building is one of the major risks of a fire/disaster and a potential large claim.

Flammable liquids, gases, food, oil and ignition sources are a major concern for insurance companies, and owners of hotels and restaurants are now recognising this risk. This system sometimes needs interfacing with duct work dampers to stop the fire spreading through the building.

Fire suppression unit diagram

Nozzles placed under the cooker canopies and over each risk propel a water-based agent with a chemical foam type mix over the risk. This is usually triggered by a heat link (a thermal link fixed to a wire which breaks and then releases the valve) or a manual pull switch.

Other systems are triggered from automatic fire detection and back to a fire extinguisher panel. The detection and most equipment in this area needs to be stainless steel to avoid corrosion and the damage/effects of heat.

The agent is usually situated near the risk in a box. This is basically a large fire extinguisher. Pipework from the nozzles terminate at this point and a valve operates the release. Once the system is triggered the agent is propelled from this valve/cylinder to the nozzles.

The agent is a water-based chemical which acts like a foam extinguisher. This is to ensure any flammable liquids are covered by the foam to avoid a boil over from any oven/fryer that may be still switched on, and stops the oil from re-igniting.

Watermist systems can be used for kitchens and can be a more cost-effective solution to Ansul systems and other water chemical systems. However, careful design is needed and approval from insurers.