New Pressure Regulator Introduced as a Replacement for BB Series This publication announces the discontinuance of the BB series proportional regulator by Proportion-Air, Inc. and introduces the replacement product. On September 30, 1985 the BB series electro-pneumatic proportional pressure regulator was born. It was the first closed-loop two valve and sensor electro-pneumatic proportional regulator … Continued
Pressure Ranges Have Changed Pressure range capabilities have changed on several Proportion-Air products. The list below reflects the new information. Please make a note and feel free to call us at 317-335-2602 if you have any questions about which pressure ranges have changed. QB1T and QB2T series: They can work from full vacuum to 175 … Continued
