What is the difference between the working principle of pneumatic quick cut butterfly valve and electric double position butterfly valve? 4 Material mechanical property test
4.1 Test material The material used for the test, that is, the composite thick plate, is made of continuous glass fiber reinforced vinyl resin. The fiber structure and forming process are consistent with the continuous fiber structure and forming process conditions used for the production of the new FRP pneumatic butterfly valve, and the fiber content is also the same. In order to facilitate the test to determine the properties of composite materials under out of plane (interlaminar) loading conditions, the thickness of raw material plate is 60mm.
4.2 During the test, according to the size of the test sample required by the standard, a group of 5 samples were made. Fix the sample on the CSS electronic universal testing machine and work together with the load sensor, controller, power amplifier and computer. Cut 5 samples along the in-plane and out of plane directions, 10 samples in total. The test was conducted at 25 ℃, and each group of tests was repeated five times.
、 Of course, the difference between control valve and ordinary manual valve is that it cannot be regarded as an isolated element, but must be considered as a part of the whole automatic control system. There are also many problems in the use of control valves, which may not be the problem of model selection and configuration. Because the user's understanding of the control valve is obviously insufficient, the control valve cannot be debugged and coordinated with the control system. In the process of use, we need to recognize the key point of the problem. Only in this way can we make the right choice for the valve. At the same time, in the system commissioning phase, if you want to debug the control valve well, it will certainly help you to greatly reduce the failure rate and make the automatic control system operate in a long-term stability.
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