Pneumatic actuators test method

Pneumatic actuator test method for
pneumatic actuators before installing no-load test, to ensure its accuracy and eligibility.
test method is as follows:
1. Place the pneumatic actuator device level, to exert pressure on both sides of the alternate exhaust cylinder side leads to the atmosphere, make the pneumatic device for the

operation. Test results should comply with the rules.
2, cylinder with buffering mechanism, in the no-load test, cushion valve should be fully open.
the strength test of pneumatic actuators
use 70% kerosene and 30% spindle oil blend oil or compressed air as medium, press 1. Five times as big as cylinder pressure (

allows the use of high pressure value) , alternate to the pressure in the cylinder, and maintain pressure after 3 min, observe the cylinder appearance and solution

check body, the result should comply with the rules. With air test, the safety protection measures must be taken.
pneumatic actuators load test
the pneumatic device installed on the test bench, pressuring cylinder 0, respectively. 6 mpa pressure of compressed air, and gradually applied to the output shaft

torque or thrust, amount of the output torque of pneumatic device or thrust, its value is not less than specified value of pneumatic device sign. While opponents move

agencies, the time limit, the opening instructions, information feedback and other components one by one check, the result should comply with the rules.
pneumatic actuator seal test
pneumatic device under no-load condition, from the two big work pressure inlet alternate 1. 1 times of compressed air, check the piston,

air leakage output shaft. The holding 3 min, leakage should comply with the rules. Seal test another inspection method: check pressure gauge

indicated pressure and lasts for 5 min, qualified for gage pressure does not drop.
number of pneumatic actuator motion life test
the pneumatic device installed on the test bench, under the rated output torque of the load, the valve opening and closing action process to simulate the drive cycle

operation, until the pneumatic device output torque or thrust is less than the rated torque or thrust, while the number of times lifespan.

action life times should comply with the rules.
the valve pneumatic actuators inspection rules
1, name of manufacturer; 2, the product name and model; 3, rated output torque and thrust; 4, cylinder pressure; 5, product

factory number; 6 test parameters, such as, manufacturing date, to ensure good quality of the valve pneumatic actuator used in normal work