صمام التحكم Siemens VXG44.15-1

The Siemens VXG44.15-1 is a gas control valve listed under manufacturer code 884.331.009. This article belongs to the VXG series, a type of gas valve used in the gas supply line of boilers and burners. Parts of this class shut off and meter the gas flow to the burner. They open on command from the burner control, but only after the gas pressure switch confirms that the supply pressure is adequate. In premix systems, a pneumatic gas/air link may connect the valve to the fan to maintain the correct air-to-fuel ratio. The valve is part of the safety chain: if the burner control does not see a flame within the safety time, the valve closes immediately. When selecting a replacement valve of this type, the installer must consider the connection size, which for such valves ranges from Rp 1/2" to 2" or flanged versions, and the coil voltage – commonly 230 V or 24 V AC/DC. The functional design also matters: single or double solenoid, slow-opening, servo-regulated, or a multiblock that integrates a filter and pressure regulator. The specific function of the VXG44.15-1 is defined by its manufacturer code; no further details are available in this catalogue entry. Typical failures for gas valves of this class include coil burnout, leaking valve seat, drifting outlet pressure, or a seized servo regulator. The solenoid coil is often replaceable separately from the valve body, which can simplify repairs. Always verify the exact part number and the system parameters before ordering a replacement.