The valve is used to open and close the pipeline, control the flow direction, adjust and control the parameters of the transmission medium (temperature, pressure and flow) of the pipeline accessories. According to its function, it can be divided into shut-off valve, check valve, regulating valve and so on. It can be manufactured by CNC engraving, sand casting, transparent acrylic(PMMA/PC) 3D Printing.
(1) Turn off the valve
This kind of valve is used for opening and closing. Standing in the cold, heat source inlet and outlet, equipment inlet and outlet, pipe branch lines (including risers), can also be used as water valve and air relief valve. Common shut-off valves are gate valves, globe valves, ball valves and butterfly valves.
Gate valves can be divided into open rod and dark rod, single gate and double gate, wedge gate and parallel gate. The closing tightness of gate valve is not good, and the opening of large-diameter gate valve is difficult; The valve body size…