Introduction To The Life Test Method Of Sanitary Diaphragm Valve Electric Device

Sanitary Diaphragm Valve The life test method of the electric device is as follows:

1. Install the electric device to be tested on the test bench and adjust the load as required. During the test, the electric device should not have any faults or mechanical damage.

2. The change of the whole machine operating efficiency is measured according to the following method: install the electric device on the torque test bench, add a torque sensor between the motor and the motor shaft wheel, and measure the input torque and output torque of the electric device in the opening and closing directions before and after the test respectively; calculate the operating efficiency according to the following formula, operating efficiency = output torque of the electric device/(output torque of the motor*transmission ratio)*100%; the difference between the operating efficiency before and after the test should not exceed the provisions of 4-6.

3. The change of the output torque of the electric device should measure the output torque values ​​before and after the test at three different torque switch positions in the opening and closing directions.

4. The position control accuracy is achieved by measuring the difference between the change of the valve stem opening position before and after the test and the wear of the valve stem nut, and its value should not exceed the specified range.