The inner sealing of the concentric line soft seal butterfly valve D341X-CL150 relies on the seamless contact between the rubber seat and the butterfly plate YD7Z1X-10ZB1 , and the valve has a two-...
1. What is stainless steel? What is duplex stainless steel?
Stainless steel is a general term for a type of corrosion-resistant steel, and its types are mainly classified based on the microstructur...
Valve foundation
1. The basic parameters of the valve are: nominal pressure PN and nominal diameter DN
2. Basic function of the valve: cut off the connected medium, adjust the flow rate, and change...
The process of operating the valve is also the process of inspecting and handling the valve. However, the following matters should be paid attention to when operating the valve.
①High temperature v...
With the arrival of the first rain and snow in winter, the temperature dropped sharply. In this severe cold, the front-line emergency repair personnel of the Municipal Guokong Water Co., Ltd. brave...
1. Hydrstatic test at negative temperature during construction in winter.
Consequences: because the tube freezes quickly during the hydraulic test, the tube is frozen.
Measures: try to carry out hy...
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