NGC 7303 Gas Safety Valve
|British Gas Approved||No|
|Manufacturer||Negaban Gas Co|
|Max Inlet Pressure||5 mbar|
- For safety on different types of gas burners, gas heaters & large ovens.
- Can be used on natural gas & LPG.
- In built flame failure device for safety.
- British Gas approved.
- ¾” stocked as standard.
- ½” available to special order.
Burner ovens feature a gas safety valve to prevent an explosion when unlit. Unless ignited by an electric glow bar, pilot flame or electric spark with a gas supply, the valve will remain closed.
Glow Bar System
The glow bar igniter and gas safety valve are wired in series within a glow bar system, meaning electricity can only pass through the valve after it has first passed through the glow bar. Electrical resistance from the glow bar blocks current to the gas valve, this decreases as the temperature increases. When the bar reaches a particular heat, enough to ignite the gas, it allows sufficient electricity through to open the gas valve.
The gas ignition source on Pilot light ignition system uses a low flame, fed by a line from the thermostat. The pilot flame will either burn constantly or be ignited electronically when the oven is switched on. More gas is fed to the pilot flame when the oven thermostat wants heat. Either excess pressure or an electric current will open the gas valve.
With some ovens the burner is directly ignited with an electric spark. An electric spark is sent to ignite the burner when the gas valve opens, this is due to the thermostat wanting heat. A sensor on the burner detects the flame and confirms ignition. The oven burner will lock out if there is no ignition after two attempts.
Free Next Day Delivery via FedEx
Applies Monday to Friday on all orders over £365 excl. VAT for orders placed before 3pm.
UK Mainland (excluding Highlands)
|Order Value||Order Value|
|Over £365||Under £365|
|Mon - Fri: 8.30am - 6.00pm|
|(Minimum order value £25)|
|Premium Deliveries (up to 30kgs)|
|Next day before 12.00pm||£15.75||£15.75|
|Next day before 10.30pm||£26.00||£26.00|
|Saturday before 12.30pm||£28.00||£28.00|
|Same day courier||POA||POA|
|Postage 3- 4 days (max 1kg)||N/A||£6.75|
|Highlands & Islands|
|2 - 5 days||£21.00||£21.00|
|Ireland (up to 20kgs)|
|Northern Ireland 2 day delivery||£21.00||£21.00|
|Northern Ireland next day delivery||£34.00||£34.00|
|Dublin 2 day delivery||£23.00||£23.00|
|Rest of Ireland 2-day delivery||£23.00||£23.00|
|For other destinations or for larger/heavier deliveries, price on application|