Diaphragm gas meters G10 to G100

It is a compact residential gas meter designed to accurately measure volumes of natural gas, LPG and all noncorrosive gases. Its design minimizes installation costs and enables future field upgrades.

Application

The long-term metrology stability makes it the right choice for demanding, high consumption residential gas markets.

Metrology

During preliminary test bench controls, the meter is 100% tested according to customer or national requirements.The design and the careful materials selection enable it to meet the highest demand in international markets in terms of accuracy and long-term stability.During the preliminary test controls on the sonic nozzle test benches, all meters are tested at Qmin, 0.2 Qmax and Qmax.

Operating Principle

The meter is a positive displacement diaphragm gas meter with a stand-alone twin chamber measuring unit. The twin chambers are each fitted with a flexible and gas-tight diaphragm, which is moved by the differential between the inlet and outlet pressure. Gas enters one side of the diaphragm plate, while on the other side it sluice through a separate port on the valve. When one side is full, the rotating mono-valve moves on to the next position, allowing the gas to fill the empty side. A transmission gear and a mechanical coupling or stuffing box transfer the reciprocating motion to the mechanical index.The measuring unit is housed in a robust, gas-tight casing.

Technical parameters