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| Gasfuse™ is the only product on the market today which completely shuts off the flow of gas in the event of a major leak.
Gasfuse Safety Valve with optional Hose and Regulator.
Safety valve with 24-inch AGA approved hose and QCC regulator. 1/4 BSP or 3/8 SAE
The Flow Of Gas Through Gasfuse™
The diagram shows in simplified form the path of gas through Gasfuse. Here's the sequence of normal gas flow.
- Gas enters the Gasfuse directly from the cylinder
- Gas is channeled into a chamber, where it passes the shutoff element.
- Gas is then channeled up out of the chamber and past the gauge pin.
- Gas then exits
The various uses of Gasfuse all follow from this sequence. Importantly, the gauge pin is directly attached to the gauge, and acts as a pressure detector, which causes the gauge to show changes in gas pressure via movement in the needle.
How Gasfuse™ Stops Major Leaks
The shutoff mechanism works on the Bernouilli effect. A sudden increase in gas flow (for example from the hose rupturing) changes the pressure around the shut off element, lifting it up and causing it to plug the exit to the chamber and stop the flow of gas completely.
The shutoff element will stay in this position until you push down on the gauge. The gauge pin then pushes the shutoff element back down into the chamber, so resetting the Gasfuse ready for normal operation.
How Gasfuse™ Detects Small Leaks
By turning the cylinder on and the appliance off, you allow gas to fill the Gasfuse, gas hose and all gas pipes and manifolds, all the way up to the appliance.
When you turn the gas cylinder off, the gas should stay in the Gasfuse, hose and inside the appliance. If there is any leak, the pressure should drop because gas is escaping but not being replenished (because the cylinder is off). The drop in pressure will be detected by the gauge pin, causing the needle to move downwards.
How Gasfuse™ Tells You That You're Low On Gas
The gauge detects pressure through the gauge pin. When gas in the cylinder is low, the pressure drops and the needle falls towards the red section of the gauge.
How to connect.
Gasfuse screws directly into an LPG cylinder. The hose and regulator from your appliance then screws into Gasfuse.
For Major Leaks
If there is a major hose rupture, for example from a fire at the appliance or the hose detaching, you don't need to do anything - Gasfuse will simply shut off whether you're there or not. When the problem is fixed, just pump the gauge 3-4 times, and the gas will start flowing again. If the problem hasn't been fixed properly and the hose ruptures again, Gasfuse will shutoff once more.
For Leak Detection
You can determine if there are any leaks in any gas connection that has a Gasfuse attached. Turn the appliance off, and the LPG cylinder on. Pump the gauge 3-4 times to let the gas flow, then turn the LPG cylinder off. Now watch the gauge for a few minutes - if there is any leak, the needle on the gauge will move.
As a Low Gas Indicator
Gasfuse tells you when you need to change cylinders or get a refill. Turn your appliance on and run it for a few minutes. The gauge is clearly marked and colour coded. When the needle falls into the red zone marked refill, you know you'll be needing more gas soon.
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Features
- Gas Gauge - Indicate when gas is runing low
- Leak Detection - Perfrom leak test on outdoor gas appliances.
- Automatic Shut off - Cuts off the in the event of a major leak.
- Can be used on either 9kg or 4.5 kg cylinders
- Peace of mind safety on spare cylinders. Gauge automatically cuts of if a child accidentally turns on a spare cylinder not connected to an appliance.
- Easy to Install
- Conveniently includes hose, regulator and GasFuse in one.
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