Abstract: Valve arrangement (1,2) for automatically controlling the gas flow in the burner of a gas fireplace appliance, comprising a manual flow regulating tap (1) connected to the gas supply and provided with a rotary control knob (1a), a gas switching servovalve operated by a diaphragm (8), connected in series to the manual valve outlet (1b), and whose action is governed by an auxiliary electromagnetic bleed valve (5,15), an electronic control circuit (3) supplied by an electrical battery (4) and an electrical thermostat switch inserted in the auxiliary valve supply line.

Abstract: Gas flow regulation valve (1) for a heater appliance, comprising a valve body (2) with two axial valves (7,9) arranged in series, whose valve sealing members (7′,8′) are the lift type by means of a central valve stem (10), whose forward movement (e) is actuated by a stepped motor (3), a motor control unit (C) for its power supply, and a remote control (RC) provided with a room temperature sensor (16), which houses a number of valve operating programs (P), each of them containing four positions relative to the forward movement of the valve stem, in accordance with the fuel gas family and the type of heating appliance.