Valve Type: Pressure unbalanced globe control valve
Valve Nominal Size: DN20 through DN500; 0.75 inch through 20 inch
Pressure Rating: PN16, 40, 63, 100, 160, 250, 400; ANSI Class 150, 300, 600, 900, 1500, 2500
Body Style: Double top stem guided globe or angle, Jacket
Trim Type: Unbalanced plug
Flow Direction: Flow over the plug; Flow under the plug
Flow Characteristic: Equal percentage EQ%; Linear; Quick open
Rangeability: 50:1
Temperature Range: Standard bonnet type from -29°C to 250 °C (metal seat), from -29°C to 150°C (soft seat);
Extension type from -100°C to 650°C; Bellows type from -60°C to 537°C;
Cryogenic type down to -196°C
Seat Leakage: Metal seat ANSI IV or V; Optional soft seat ANSI VI
Actuator: Pneumatic cylinder actuator; Pneumatic diaphragm actuator;
Electric actuator; Hand-wheel manual for option
Description & Features
CV1100 control valve trim is uniquely designed to avoid the difficulties associated with screwed-in seats and cage-guiding. Removal of the seat is easy even under extremely corrosive conditions because the seat ring is in just clamped into the body by the bonnet and seat retainer.
Plugs are double-stem guided, avoiding contact between the seat retainer and plug, unlike cage-guided trims that easily gall and stick. Because no contact is made with the plug, the retainer can be constructed of stainless steel rather than costly hard materials and guide direct fluid, buffer pressure of fluid, protect plug and seat from erosion, flash, cavitation of fluid damage and reduce noise. The flow characteristic is determined by the plug contour, and not by the opening in the retainer. So with the advantage of single seat and cage guided control valve.
