Regulator valve forward and reverse installation
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Can anyone tell me why the regulating valve needs to be installed upside down? This post was last edited by marry on 2009-3-25 08:42 ]
The forward and reverse installation of the control valve can change the positive and negative effects of the control valve. Generally speaking, the regulating valve is composed of an actuator and a regulating valve. The actuator is divided into two forms: direct action and reaction. The valve stem action directions of forward and reverse actuators are different (the same model acts on different actuators)
If the flow characteristics are different, the anti-installation characteristics will change, and the adjustment effect will not be achieved.
It's not rigorous enough, it should be the formal and reverse installation of the valve core.
Many problems are caused by man-made problems. When installing the control valve, you only need to follow the arrow instructions on the product. I don’t understand why it is installed correctly and backwards. There is even a big discussion about the characteristics of formal installation and reverse installation. I am very talented. I hope it can be successful. When the time comes to install the regulating valve, I will also do the reverse installation, and I can also write a paper.
The regulating valve is composed of two parts: the actuator (diaphragm head) and the regulating mechanism (valve). The actuating mechanism has positive and negative effects, and the regulating mechanism has forward and reverse installations. Actuators with different functions and regulating mechanisms with different configurations can form an air opening valve or an air closing valve. For example, the combination of a positive-acting actuator and a reverse-loading regulating mechanism forms an air-opening valve.
I agree with the point above, the guy who asked the question seems very unprofessional.