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【标题】Valve operating positions
【摘要】valve operating positionsvalve positions are operating conditions determined by the position the disc or rotor in the valve. some valves are made to be operated in a gradual change between two or more positions.water valve, hydraulic valve, butterfly valve, gate valve, globe valve, check valve, plug valvetwo-way valvesmain article: two-way valve2-port valves are commonly called 2-way valves. operating positions for such valves can be either shut (closed) so that no flow at all goes through,... (04-15 00:09)
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