This is used by attaching a drive unit operated by a control pneumatic signal (or electrical signal) to the main unit, which has valve opening position and ow rate characteristics depending on the shape of the internal valve. The valve opening position is adjusted according to the control signal to control the process uid. ■DY-GOZ Two-way Single-seated Control Valve Three-way Control Valve Three-way Rotary Mixing Control Valve ■DY-T ■DY-M This is mainly used as a steam control valve for heaters to control the temperature of fuel oil, lubricating oil, etc. The speci cations of the inner valve are selected according to the conditions of use. This is mainly used to control the temperature of fresh water and lubricating oil supplied to the main engine of diesel engines and power generation engines. ■MV-GOZ ■MV-M This is a valve with an electric motor which drives the two-way single-seated control valve DY-GOZ; it is mainly used as a steam control valve for heaters. This is a valve with an electric motor which drives the three-way rotary mixing control valve DY-M; it is mainly used as a temperature control valve for fresh water and lubricating oil. This is a three-way control valve with a rotary-type structure that changes the ow path by rotation of the valve disc, making it ideal for large-capacity, large-diameter applications. For corrosive uids such as seawater, a corrosion-resistant rubber lining or coating can be applied to the inside of the body. Main unit type Pressure Rating Nominal size Main unit standard material Flow characteristics Rangeability Leakage when fully closed Single-seated globe valve JIS 5K to 20K; ANSI 125 to 300 15A, 20A, 25A FC200, SCPH2 Equal percentage 20:1 to 30:1 0.01% or less of rated Cv Main unit type Pressure Rating Nominal size Main unit standard material Flow characteristics Rangeability Leakage when fully closed Three-way rotary valve JIS 5K, 10K; ANSI 125, 150 80A to 650A FC200, SCPH2 Linear 30:1 2% or less of rated Cv Main unit type Pressure Rating Nominal size Main unit standard material Flow characteristics Rangeability Leakage when fully closed Three-way single-seated valve JIS 5K, 10K; ANSI 125, 150 25A to 300A FC200, SCPH2 Linear 30:1 0.1% or less of rated Cv Two-way Single-seated Control Valve Three-way Rotary Mixing Control Valve 16 NAKAKITA VRCS PRODUCT CATALOG
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