Pneumatic control valve compression strength test

. Times the nominal pressure of water at room temperature, the water can contain water soluble oil or rust inhibitor, according to the entrance direction input adjustments of the adjustment of pneumatic valve pneumatic valve pneumatic valve body, the other end closed, the pressure in the work of all pneumatic valve cavity at the same time bear the test pressure of not less than min, when the experiment observation to adjust pressure parts of the pneumatic valve if there is a visible leakage.
experiments, the straight stroke regulating pneumatic valve shall be in the fully open position, Angle of pneumatic valve travel adjustment should be part of the open, test equipment should not be to adjust the pneumatic valve will affect the results of applied stress, demolition of has nothing to do with the test when necessary may damage the components, such as bellows, diaphragm, packing and other parts after testing.
the accuracy of the test pressure gauges shall not be less than. The upper limit of grade, measurement range shall not be greater than the test pressure of The Times.