QPV ultra high resolution, closed loop, electronic proportional pressure control valves by Proportion-Air maintains its resolution of +/- 0.005% fs (full scale - maximum measurable pressure) in any orientation without need for recalibration. The shock-resistant QPV ships with all the required filtration and electrical connectors. An anodized aluminum housing provides NEMA 4 or IP65 rated protection for the fully enclosed version. The valve’s control pressures range from vacuum to 150 psig, and it has low pressure control at high resolution with ranges as low as 0 to 2 in. of water. Applications include air-over-saline medical applications and leak testing.

Proportion-Air, 8250 N. 600 West, McCordsville, Indiana 46055, (317) 335-2602, www.proportionair.com