APPLICATIONS

Gas Proving Systems for Commercial Kitchens (G161)

Duomo's Safestart is a very simple system for checking that all manually operated gas taps are closed in rooms such as commercial catering establishments or science laboratories.

The G161 Gas Valve Assembly (A) is a popular, cost-effective alternative to the G621 Gas Valve Assembly. It is available with either BSP union end or compression fittings (1/2" to 2") or flanged (2 1/2" to 3").

The KS22 V6 Trio Safestart (B) is used in hotel kitchens, restaurants, schools, hospitals, prisons etc. Its ventilation proving system - Fan Power Monitors (C) or Air Pressure Switches (D) - checks that all extraction and supply fans are on before the gas proving sequence starts.

The function of the Safestart system is to ensure that all downstream gas taps are turned off prior to reinstating the gas supply to appliances or Bunsen burners. Duomo's Safestart is designed according to IGEM/UP/11 - Gas Installations for eductaional establisments and British Standard BS6173:2009. From BS6173:2009:

"Where the open burners of a new appliance are not fitted with a flame supervision device the gas supply shall be fitted with a proving system to prove the closure of all valves prior to the establishment or restoration of the gas supply."

Duomo (UK) Ltd have always manufactured gas proving systems in accordance with this new standard.

When sourcing Duomo products for a commercial kitchen installation it is important to know what you need, and why. There are two typical scenarios to consider;

• When any appliance in the kitchen does not have flame failure safety devices attached
• When every appliance in the kitchen does have flame failure safety devices attached

The graphic here provides a visual explanation of these two scenarios and illustrates what kit would typically be installed.