With visual position indicator (LED), Normally closed (n. c.), Control by supply voltage or in remote operation by additional control voltage (24 V DC), Service life, 200000 operating cycles
Bellows-sealed, With visual position indicator, Normally closed (n. c.), Service life, 10 million operating cycles
Bellows-sealed, With visual indication of open and closed positions, Without control valve, Service life, 10 million operating cycles
Quick opening by partly turning the rotary knob, Bellows-sealed, With visual indication of open and closed positions, Service life, 10,000 operating cycles, The valve must always be fully opened/closed (locked)
Don't worry we won't leave you in a vacuum