ALL-METAL VARIABLE LEAK VALVE, SERIES 59.0 ALL-METAL VARIABLE LEAK VALVE, SERIES 59.0 Gas inlet valve for smallest gas flows to control the process pressure. Resistant to corrosive and aggressive gases Precise, reproducible adjustment of the gas flow Repeatable and reliable leaktight closing Angle or inline valve with manual actuator Angle valve with Angle valve with integrated controller detachable controller MAIN FEATURES Sizes Actuators Body material Standard flanges Sealing technology DN 16 mm (%") manual: handwheel integrated or detachable pressure controller with stepper motor stainless steel CF-R diaphragm FUNCTIONAL PRINCIPLE 1 Sealing diaphragm 2 Closing spring 3 Scale V Valve seat side

ALL-METAL VARIABLE LEAK VALVE, SERIES 59.0 TECHNICAL DATA VALVE Leak rate Valve body, valve seat Pressure range Differential pressure at opening Dead volume Angle valve: Seat side Side port Inline valve: Seat side Side port Cycles until first service Bake-out temperature 1) Valve body Manual actuator Controller with stepper motor Heating and cooling rate Material Valve body Diaphragm Mounting position Valve position indication Conductance (molecular flow) Adjustable gas flow Weight With manual actuator With controlled stepper motor 1) Maximum values: depending on operating conditions...

ALL-METAL VARIABLE LEAK VALVE, SERIES 59.0 Controller configurations: G = basic version A = with SPS (Sensor Power Supply, ±15 V DC power supply for sensor) Example: 59024-GEGG = Controller with RS232 interface, 1 sensor Interface Number of sensors C = Logic (analog / digital) MAIN DIMENSIONS Angle valve with manual actuator handwheel DN 16 (%") Inline valve with manual actuator handwheel DN 16 (%") 0 u V Valve seat side

FLANGE DIMENSIONS mm DN . . inch