They are used for pressure control purposes in house installations that use natural gas or LPG. Input pressure Pg is: 50 - 200 mbars, while output pressure Pç: 10-30 mmbars. Flow rate capacity is maximum 10 m?/h. Optionally, there is a low pressure safety shut-off valve. It is possible to connect to G2.5, G4 and G6 diaphragm meters.