The Siemens VVF 22.65-63 two-port control valve is a flanged valve designed for precise control and shut-off of flow in closed hydraulic circuits. It is particularly suitable for boiler rooms, chiller plant rooms, heating distribution systems and air handling units, where reliable control of the medium output is required.

The valve is designed for use with Siemens electromotoric and electrohydraulic actuators and stands out for its robust cast iron body, high stroke and long-term stable control characteristic. It is suitable for water, mixtures with antifreeze additives and brines; however, for medium temperatures below 0 °C, stem heating must be added.