Air Dimensions 50th Anniversary Logo

H-Series Dia-Vac® Performance


ADI’s gas sampling Dia-Vac® Pumps can pass your gas at the speed of need! Due to an increased interest in reducing the pressure, vacuum and/or flow on the Dia-Vac® pumps, our engineers designed a modified eccentric design. This allows you to customize your Dia-Vac® pump to meet your application requirements while at the same time increasing the diaphragm and bearing life.

Please note that the chart below is not meant to be read as a combination of pressure and vacuum at the same time, only pressure or vacuum.

H-Series Dia-Vac®
Flow Averages          


(Please click on individual Model # for actual performance curves)
Model #PSIG
(Max Pressure)
Bar Gauge
(Max Pressure)
InHg Gauge
(Ultimate Vacuum)
Mbar Gauge
(Ultimate Vacuum)
(Max Flow)
(Max Flow)

Head Connection Schematics


Unit Converter


  • Test results are averaged, and therefore should be considered approximate.
  • Tests performed with 316ss head, Teflon® diaphragm, 1/4 inch diameter hose x 5 ft. line at 75° F, using a std. 1725 rpm motor at 60 Hz.
  • These test results are for reference only, and are intended to help provide information to the user when determining which pump to buy. Actual pump performance will depend upon the users' applications.
  • For 50 Hz operation, reduce output by 17%
Teflon® is a registered trademarks of E. I. du Pont de Nemours and Company Viton® is a registered trademark of Dupont Dow Elastomers