GAS SHUT-OFF VALVE

摘要

A gas shut-off valve for installation in gas meters, has a valve disk that can be moved in the longitudinal direction with respect to its valve seat. The movement is realized by a linear unit held in the longitudinal direction in a valve casing, which is actuated by an electric motor via reduction gearing. The valve seat has a lip seal. The electric motor is a small DC motor. The reduction gearing and the linear unit, are installed in a panel of the valve casing. The linear unit is a rack-and-pinion gearing or a sliding-screw gearing, having an adjusting-nut element and an adjusting rod.

主权项

1. A gas shut-off valve for installation in gas meters, comprising a valve disk that can be moved in a longitudinal direction with respect to a valve seat, said valve disk being seated on an adjusting rod held in the longitudinal direction in a valve casing, and a coupled linear unit that is actuated by an electric motor via reduction gearing, wherein,
a) the valve seat has a lip seal, b) the electric motor is a small DC motor, c) the reduction gearing is arranged laterally on the side of the linear unit, and d) the linear unit is designed to be a rack-and-pinion gearing or a sliding-screw gearing, comprising an adjusting-nut element and an adjusting rod integrated into a panel of the valve casing.