Single acting pneumatic actuator performance:
1. The rated output force or torque of the pneumatic device should meet the requirements of GB/t12222 and GB/t12223
2. Under no-load conditions, input the air pressure specified in Table 2 into the cylinder, and its action should be smooth, without jamming and crawling.
3. Under the air pressure of 0.6MPa, the output torque or thrust of the pneumatic device in the opening and closing directions should not be less than the value marked on the label of the pneumatic device, the action should be flexible, and abnormal phenomena such as permanent deformation are not allowed in each part.
4. When the sealing test is carried out under the maximum working pressure, the amount of air leaking from each back pressure side shall not exceed (3+0.15d) cm3/min (standard state); the air leakage of the end cover and output shaft shall not exceed ( 3+0.15d) cm3/min.
5. The strength test is carried out at 1.5 times the maximum working pressure. After maintaining the test pressure for 3 minutes, the cylinder end cover and static seal are not allowed to leak and structural deformation.
6. Action lifetimes. The pneumatic device simulates the action of a pneumatic valve. Under the condition of maintaining the output torque or thrust capability in both directions, the number of opening and closing operations shall not be less than 50,000 times (one opening and closing cycle).
7. For a pneumatic device with a buffer mechanism, when the piston moves to the end of the stroke, no impact is allowed.
