What is BS EN 12480-Rotary displacement gas meters about?

BS EN 12480 discusses gas meters. BS EN 12480 specifies ranges, construction, performances, output characteristics, and testing of rotary displacement gas meters (hereinafter referred to as RD meters or simply meters) for gas volume measurement.

BS EN 12480 applies to rotary displacement gas meters used to measure the volume of fuel gases of at least the 1st, 2nd, and 3rd gas families, the composition of which is specified in EN 437:2003+A1:2009, at a maximum working pressure up to and including 20 bar over an ambient and gas temperature range of at least −10 °C to +40 °C. BS EN 12480 applies to meters with a maximum allowable pressure PS and the volume V of less than 6 000 bar · liters or with a product of PS and DN of less than 3000 bar.

BS EN 12480 applies to meters that are installed in locations with vibration and shocks of low significance (class M1) and in closed locations (indoor or outdoor with protection as specified by the manufacturer) with condensing or with non-condensing humidity or, if specified by the manufacturer, open locations (outdoor without any covering) with condensing humidity or with non-condensing humidity, and in locations with electromagnetic disturbances (class E1 and E2).

Who is BS EN 12480-Rotary displacement gas meters for?

BS EN 12480 on gas meters (rotary displacement gas meters) is useful for:

Gas meter manufacturers
Utility providers
Quality control personnel

Why should you use BS EN 12480-Rotary displacement gas meters?

The rotary gas meter is a more precise instrument that handles higher pressures than diaphragm meters. These positive displacement meters are designed to measure gas, for custody transfer or technical measurement applications.

Gas meters shall be classified according to accuracy class 1,0. The values of maximum flow rates and the corresponding values of the upper limits of the minimum flow rates shall be one of those given in BS EN 12480 when the meter is tested with the air of density approximately 1,2 kg/m3.

BS EN 12480 provides you with guidance on the operating range. BS EN 12480 guides you on the meteorological performance.

A gas meter shall be designed, manufactured, and checked by the manufacturer to ensure it meets the requirements of BS EN 12480. The manufacturer shall provide instructions, covering installation, commissioning, and maintenance to ensure its safety and correct functionality in service under all reasonably foreseeable conditions. BS EN 12480 guides you with the design and manufacturing of gas meters.

BS EN 12480 guides you with meter output conformity. BS EN 12480 also guides you with the durability of the gas meter. BS EN 12480 helps you manufacture high-quality rotary gas meters.

BS EN 12480:2018

Gas meters. Rotary displacement gas meters

Published:

31 Mar 2018

Withdrawn:

19 Nov 2025