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Two-way valves with seat and shutter, with bronze body, threaded connections compliant with ISO 228/1 standards and knob for manual control. Thread connection: G 1 Inch B, DN: 20 [mm], Kvs: 4 [m³/h]. Can be used to control terminal units, cooled ceilings and zone heating. They are suitable for hot and cold water (VDE 2035), max. 60% glycol. They can be used with the servocontrols of the series: SSP..., STP... NB: The VVP47.. valves can only be used as mixers. Stroke: 2.5 mm. Leakage: max. 0.05 % of the kvs value. Return spring force: 100 N. Fluid temperature: 2…110 °C. Characteristic: Linear. Valve body: Bronze RG5. Stem: Stainless steel. Mounting: vertical or horizontal. Shutter and seat: Brass