RAT series rotary actuators and RBV/RDV pneumatic ball and butterfly valves produced by XingyuRfs are used in many kinds of fluid flow on-off control in the desulfurization and denitrification equipment of water treatment, petrochemical industry, pharmaceutical industry and environmental protection industry. Its end users are concentrated in power plant, steel mill, metallurgical plant, petrochemical industry, coal chemical industry, sewage treatment industry, beverage, food, etc. Compared with other similar products, our RAT series actuator has better advantages: Longer cylinder, larger output torque, thicker pinion, output torque is about 5% higher than the same type, gear shaft is nickel plating and higher hardness, longer lifetime. End cap made of 108 aluminum material, its cost is higher than the ordinary aluminum. Cylinder body and piston are hard oxidation treated, powder spraying of piston end cover, which is more resistant to corrosion.