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Technical standards followed by pneumatic actuators


Release time:

2022-07-11

Today, by Wuxi Xinming automatic control valve industry Co., Ltd. for you to introduce in detail the technical standards followed by pneumatic actuators: The effect of the pneumatic actuator is to open and close the valve through the gas pressure to adjust the implementation of the device. In the actual operation process, it is still necessary to have a sufficient understanding of the technical specifications of each link. Specification for the arrival of demand on the 1. structure 1. Pneumatic equipment is mainly composed of cylinders, pistons, gear shafts, end covers, seals, screws, etc.; complete sets of pneumatic equipment should also include opening instructions, stroke limits, solenoid valves, positioners, pneumatic components, manual organization, signal Feedback and other components. 2. The connection scale of pneumatic equipment and valves shall conform to the rules of ISO5211 (bottom), GB/T12222 and GB/T12223. 3. For pneumatic equipment with manual organization, when the gas source is interrupted, it should be able to use manual organization to open and close the valve. When facing the handwheel, the handwheel or handle should be rotated counterclockwise to open the valve and clockwise to close the valve. 4. When the end of the piston rod is internal and external, there should be a wrench mouth suitable for the standard wrench. 5. The sealing ring of the piston should be easy to replace and repair. 6. For pneumatic equipment with buffer organization, the stroke length of buffer organization can refer to the rules of Table 1. 7. Pneumatic equipment with adjustable buffer organization should have the organization of the external adjustment of the buffer effect of the cylinder. Specification for the arrival of requirements on 2. performance 1. The additional output force or torque of pneumatic equipment shall conform to the rules of GB/T12222 and GB/T12223 2. In the case of no load, the air pressure of the cylinder shall be transported regularly, and its action shall be stable without blocking and crawling. 3. Under the air pressure of 0.6MPa, the output torque or thrust of pneumatic equipment in the opening and closing directions shall not be less than the value indicated on the sign of pneumatic equipment, and the action shall be sensitive, and deformation and other abnormal phenomena shall not be allowed in all parts. 4. When the sealing experiment is carried out with large working pressure, the amount of air leaked from the respective back pressure side is not allowed to exceed (3+0.15D)cm3/min (standard state); The amount of air leaked from the end cover and output shaft is not allowed to exceed (3+0.15d)cm3/min. 5. The strength test is carried out with a large working pressure of 1.5 times. After the experimental pressure is adhered to for 3min, the cylinder end cover and static sealing part are not allowed to have leakage and structural deformation. 6, the number of action life, pneumatic equipment simulation valve action, in the two directions to adhere to the output torque or thrust to the case, the opening and closing operation of the opening and closing times should not be less than 50000 times (open-close cycle for a). 7. Pneumatic equipment with buffer organization, when the piston moves to the end position of the stroke, the impact phenomenon is not allowed. Specification for 3. Appearance 1. There shall be no scratches, cuts, pores, burrs, etc. on the end cover, end flange and box body of the casting cylinder. 2. The paint layer or chemical treatment layer on the outer surface of pneumatic equipment should be flat, smooth, uniform in color, and free of oil stains, indentations and other mechanical damages. The above is the Wuxi Xinming automatic control valve industry Co., Ltd. for you to introduce in detail all the contents of the technical standards followed by pneumatic actuators. If you have any questions, please feel free to come to consult!

Technical standards followed by pneumatic actuators

Today, Wuxi Xinming automatic control valve industry Co., Ltd. will give you a detailed introduction in many aspects.Pneumatic actuatorTechnical standards followed:

气动执行器

Pneumatic actuatorThe effect is to open and close the valve through the gas pressure to adjust the implementation of equipment. In the actual operation process, it is still necessary to have a sufficient understanding of the technical specifications of each link.
Specification for the arrival of demand on the 1. structure
1. Pneumatic equipment is mainly composed of cylinders, pistons, gear shafts, end covers, seals, screws, etc.; complete sets of pneumatic equipment should also include opening instructions, stroke limits, solenoid valves, positioners, pneumatic components, manual organization, signal Feedback and other components.
2. The connection scale of pneumatic equipment and valves shall conform to the rules of ISO5211 (bottom), GB/T12222 and GB/T12223.
3. For pneumatic equipment with manual organization, when the gas source is interrupted, it should be able to use manual organization to open and close the valve. When facing the handwheel, the handwheel or handle should be rotated counterclockwise to open the valve and clockwise to close the valve.
4. When the end of the piston rod is internal and external, there should be a wrench mouth suitable for the standard wrench.
5. The sealing ring of the piston should be easy to replace and repair.
6. For pneumatic equipment with buffer organization, the stroke length of buffer organization can refer to the rules of Table 1.
7. Pneumatic equipment with adjustable buffer organization should have the organization of the external adjustment of the buffer effect of the cylinder.
Specification for the arrival of requirements on 2. performance
1. The additional output force or torque of pneumatic equipment shall conform to the rules of GB/T12222 and GB/T12223
2. In the case of no load, the air pressure of the cylinder shall be transported regularly, and its action shall be stable without blocking and crawling.
3. Under the air pressure of 0.6MPa, the output torque or thrust of pneumatic equipment in the opening and closing directions shall not be less than the value indicated on the sign of pneumatic equipment, and the action shall be sensitive, and deformation and other abnormal phenomena shall not be allowed in all parts.
4. When the sealing experiment is carried out with large working pressure, the amount of air leaked from the respective back pressure side is not allowed to exceed (3 0.15d)cm3/min (standard state); The amount of air leaked from the end cover and output shaft is not allowed to exceed (3 0.15d)cm3/min.
5. The strength test is carried out with a large working pressure of 1.5 times. After the experimental pressure is adhered to for 3min, the cylinder end cover and static sealing part are not allowed to have leakage and structural deformation.
6, the number of action life, pneumatic equipment simulation valve action, in the two directions to adhere to the output torque or thrust to the case, the opening and closing operation of the opening and closing times should not be less than 50000 times (open-close cycle for a).
7. Pneumatic equipment with buffer organization, when the piston moves to the end position of the stroke, the impact phenomenon is not allowed.
Specification for 3. Appearance
1. There shall be no scratches, cuts, pores, burrs, etc. on the end cover, end flange and box body of the casting cylinder.
2. The paint layer or chemical treatment layer on the outer surface of pneumatic equipment should be flat, smooth, uniform in color, and free of oil stains, indentations and other mechanical damages.


















气动执行器

The above is the Wuxi Xinming automatic control valve industry Co., Ltd. for you to introduce in detail all the contents of the technical standards followed by pneumatic actuators. If you have any questions, please feel free to come to consult!