Want a GT1 Gas Survey? Apply for Now
What is a GT1 Survey?
A GT1 gas survey, also known as a Gas Transporter 1 test, is an essential inspection for any new property or business premises where there is no existing gas meter or uncertainty about the capacity of the current gas supply. This test is crucial to ensure that the current infrastructure can support your required gas volume or determine whether a new or upgraded gas connection is necessary.
Why Do You Need a GT1 Survey?
You may need a GT1 survey in the following situations:
- New Property or Business Premises: If you’re moving into a new property without a gas meter or if you’re unsure whether the current gas supply is sufficient for your needs.
- Increased Gas Demand: If you’re planning to install new equipment that requires more gas, you need to confirm whether the existing supply can handle the increased demand.
- Gas Pipe Modifications: If you’re considering removing a gas pipe and want to check if it still has a live gas connection.
- Pressure and Capacity Check: If you want to know the current pressure and capacity of the gas supply to your property.
How Does a GT1 Survey Work?
A GT1 test evaluates the existing gas infrastructure to ensure it meets your business needs. Here’s what a GT1 survey typically checks:
- Gas Pipe Capacity: Measured in kilowatts (kW), the capacity test determines if the pipe can deliver the gas volume required for your equipment.
- Emergency Control Valve (ECV) Specifications: ECVs vary in size and connection type (e.g., metric or imperial). The GT1 will confirm the type and size of the ECV installed.
- Gas Main Pressure: The test identifies the pressure in the gas main, which can range from low (LP) to high pressure (HP).
- Live-Dead Test: Confirms whether the gas connection is live and active.
How Long Does a GT1 Survey Take?
The duration of a GT1 survey can vary depending on engineers’ availability and site conditions. On average, it takes 10 to 15 working days from the date of submission to complete the test. However, factors such as adverse weather or limited engineer availability may impact this timeframe.
How to Apply for a GT1 Survey
To request a GT1 survey, you can submit our GT1 request form. The form provides us with the necessary details to evaluate the capacity and pressure of your existing service. The capacity information provided will only be for indicative purposes and will not confirm gas availability or reserve capacity in the network.
Key Takeaways
- A GT1 survey is essential when moving into a new property or business premises without a gas meter or if you need to verify the capacity and pressure of your existing gas supply.
- The survey helps determine if the existing infrastructure can support your gas requirements or if an upgrade is necessary.
- You can submit a GT1 request form to SGN for a detailed evaluation of your gas service capacity and pressure.