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Product Feature
FeaturesGDC-J Series safety valves for rotary vacuum pump take electromagnetic power as a driving force to enable valves open or closed. Apply vacuum system, or used to cut through air currents purposes. Working medium is applicable to non-corrosive gases and air. Valves closed, sealed surface side panels allow bear pressure valves, adjacent to the vacuum sealed role to play in this state, connected electrical power boxes, valves should be opened to normal.
Product Specifications
Model GDC-J50DN (mm) 50
Application (Pa/mbar/torr)
10 5~6.7*10 -4 / 10 3~6.7*10 -2/ 0.75*10 3~5*10-2
Gaseous flow rate (Pal/s mbar/s, torr/s)
6.7*10 -4 / 6.7*10 -3 / 5*10 -3
Medium temperature
-25~+40
Open and close time (s) 3~5
Power (V/Hz)
220/50
Power consumption (W) On 254
Norma 4.3
Install position uprightness
