249444 ⎘
Fluid handling; Systems; Sequentially progressive opening or closing of plural valves; Pressure equalizing or auxiliary shunt flow; One valve seats against other valve [e.g., concentric valves] Gate
Pressure-balanced gate valve
#2Valve removal method of fluid pipeline structure, fluid pipeline structure, and valve device
#3Electronic expansion valve
#4Electronic expansion valve
#5Solenoid-powered gate valve
#6Gate valve pressure equalization system
#7Gate valve with equalizer port
#8Gate valve with equalizer port
#9Shutter and gate valve assemblies for vacuum systems
#10Apparatus and method for controlling exhaust pressure in semiconductor manufacturing