• A balanced supply valve to deliver consistent and reliable precision accuracy to maintain your desired set point regardless of supply pressure changes or conditions • Full vacuum capability - accurate control in vacuum applications • Control sensitivity of 1/2" water column allows use in precision applications • High flow capacity - responsive and repeatable operation • Up to 12 SCFM, 20.4 m3/hr flow capacity • Balanced vacuum valve minimizes any effects of supply vacuum variation • Separate control chamber eliminates hunting and buzzing • Unit construction permits you service the Model 17 without removing it from the line • Aspirator tube compensates for any downstream vacuum droop under flow conditions • A vacuum supply effect of less than 0.15 of any change in supply vacuum • 40 in Hg, 762 Torr, 102 kPa maximum supply vacuum • Three output vacuum ranges from 0-5 in Hg, 0-127 Torr, 0-17 kPa, up to 0-30 in Hg, 0-762 Torr, 0-102 kPa