Automatic Control valve

OVERALL: GTs Automatic Control Valve, which is composed of pnematic diaphragm actuator and cage-guided valve, which is one of the principle products in G series control valves. The air-to-close type is made up of 857 or ZHGA direct actuator and the valve. As the input signal pressure increases from the low limit to high limit,the valve travels from full open to full close. The air-to-open type is made up of 867 or ZHGB reverse actuator and the valve. As the input signal pressure increases from the low limit to high limit, the valve travels from full close to full open.  With such characteristics as cage guiding, balanced trims and easy replacement of trims, GTs automatic control valve is mainly applied to common and tough services conditions, as well as high leakage requirement conditions, high differential pressure services with clean liquid or gas as the fluid. Spe GTs automatic cage-guided control valve is sealed with bellows. With bellows, stem, spacer bush…

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