How do I know if I have a U16 gas meter?

Using the above principles, it should be easy to identify your meter size and model. A meter displaying Qmax = 16 m3/h will identify the meter as a U16 with a peak flow of 16 m3/h.

What is a 425 gas meter?

The Honeywell American Meter AL425 is a diaphragm gas meter with an odometer index that registers gas volume in cubic feet. Available with temperature compensation. Generally used for residential, commercial & industrial metering applications.

What is a U25 gas meter?

A U25 is a medium size diaphragm meter generally used for commercial applications and occasionally for domestic properties. The U number is used to define all Diaphragm Gas Meters and relates to the meter capacity in Standard Cubic Metres per Hour (SCMH).

How big is a U16 gas meter?

Meter Type: Low Pressure (Diaphragm Meters) Flow Rate kW (kilowatts Capacity (SCMH) Standard cubic metres per
U6 0 – 65 kW 6 m³/hr
U16 66 – 173 kW 16 m³/hr
U25 174 – 271 kW 25 m³/hr
U40 272 – 430 kW 40 m³/hr

Can I work on a U16 gas meter?

If you have domestic qualifications, you can work on up to a U16 meter, 35mm copper or 1¼” steel, and an installation volume of 0.035m3. Anything over this requires non-domestic qualifications.

What size are domestic gas meters?

Typically installed gas meter sizes range from 175 cf/h to 275 cf/h.

How does a diaphragm gas meter work?

The diaphragm gas meter is a positive displacement meter, also known as a PD flow meter or volumetric flow meter. The gas flows into a meter inlet or chamber of known capacity, which has an oscillating diaphragm. The section fills and empties the gas, and the volumetric flow rate is determined with each cycle.

How do I know what size gas meter I need?

Sizing Gas Meters When a gas utility provider installs a gas meter at a residence, technicians will determine its size based on the total capacity of the home’s gas appliances. The gas meter’s label will indicate its capacity in cubic feet per hour (cf/h). Common meter sizes range from 175 cf/h to 275 cf/h.

How many kw can a domestic gas meter supply?

The standard gas meters (also known as G4/U6 meters) have a maximum output of 64.6 kWh, in order to confirm that your current supply will need an upgrade you’ll need a gas safe engineer to calculate your ‘Service Pipe Energy Value’ (SPEV) in kWh which covers the total amount of gas used by all appliances (or planned …

What size gas meter can a domestic engineer work on?

If you have domestic qualifications, you can work on up to a U16 meter, 35mm copper or 1¼” steel, and an installation volume of 0.035m3. Anything over this requires non-domestic qualifications. There is no equipotential bonding on the meter but the electrician says it’s fine.