\"Piping Technology and Equipment\", January 2007: Installation of the pressure guiding pipe for the pneumatic-hydraulic actuator of line isolation valves —— Jiang Yongtao
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Regarding the selection and installation of the root valve in gas-liquid actuated actuators, I would appreciate it if anyone who has such information could provide it to me. I’ve been searching for days and finally managed to find some information, but it’s all in journals that require payment; I don’t even have the money to pay for them right now. Next week, I need to organize and summarize the information to provide technical support for our own root valves. I’m begging!
There are no specific guidelines for selecting the valve at the root in this case; the choice is determined by the installation location. If it is to be buried, a welded type is required, while if it is installed on the ground, a threaded type can be used. However, ball valves are the best choice in most cases
We also chose ball valves, with the size reduced from 1" to 1/2". The valve core is made of stainless steel, while the valve body is made of carbon steel. I don’t understand why? Is the material choice mainly based on cost considerations? What caliber?
Our root valves have been manufactured; the valve core is made of 316 material, while the valve body is made of A105 material. Both welded and threaded ends are available, and they can be connected to 1\" carbon steel pipes. This will save various users a significant amount of money by replacing imported root valves. Hehe, Shafer has already placed an order with us. First, here’s an ad; fellow sailors who are interested are welcome to get in touch with me! QQ:309875387 13980996503
The new ones are only in first grade; they can’t reply to posts, so they get some points instead. Bye for now, hahaha!!!!
The root valve is typically a distribution valve of the three-way type; it has an inlet of 2\" connected to the air supply, and outlets of 1/2\" NPT(F)X2. A collar threaded connector is used to connect a pressure gauge to one of these outlets, while the other outlet is sealed with a plug