Product Description: dgt/dgts series stainless steel pneumatic actuator Pneumatic actuator by the company according to the domestic and international latest technology, through the CAD 3D model of innovation design, beautiful appearance, compactness, modern style; and the utility model material, new technology so that the quality of the products, more reliable performance; specifications type selection is more affordable products fully meet; satisfy the specification, the latest international standards now and future needs.
(1) the gear rack piston symmetric structure design, action is quick and smooth, high precision, high output power, the opposite direction can be obtained by changing the position of the piston assembly simple.
(2) high quality stainless steel cylinder SS304 integral precision casting, precision machining of the hole and the external surface of the hard Yang lattice fluoride treatments (special circumstances anodic oxidation + Teflon coating), long service life, low coefficient of friction;
Two, DGT double acting single acting pneumatic actuator principle:
When the air pressure from air outlet (2) between the two piston into the cylinder cavity, the two ends of the cylinder piston separation moving direction, two ends of the gas chamber air through the air outlet (4) discharged, while the two piston rack synchronous drives the output shaft to rotate counterclockwise (gear). Instead of air pressure from air outlet (4) into the ends of the cylinder gas chamber, the piston moves to the two cylinder middle, middle air cavity air through the air outlet (2) discharged, while the two piston rack synchronous drives the output shaft to rotate clockwise (gear). (if the piston relative reverse direction of the installation, the output shaft to rotate reversely, the dual role of DGT type)
The compressed air from the a hole of the input, cylinder pressure to push the piston to move on both sides, the output shaft rotates counterclockwise, drive the valve to realize open-close operation. The loss of power or die, due to the action of the spring to make the piston toward the center, the output shaft rotates clockwise, drive the valve to realize open-close operation.
Use of pneumatic actuators, have been identified in the valve torque on the safety value added, water vapor or non - lubricating liquid medium to increase 25% security value; slurry liquid medium non-lubricated increase 30% security value; non-lubricated dry gas medium security value increased 40%; non lubrication gas powder medium send 60% increase for the lubricating medium security value; clean, low friction increase 20% security value.
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