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

Making Things Better

QBS Pressure Control Valve Proportion-Air is always striving to improve their product. The most recent improvement is with the accuracy of the QB1S and QB2S series electronic pressure control valve. The accuracy of this series of proportional valve was +/- 1% of full scale calibration. The improved version has an accuracy of +/- 0.5% of … Continued