The QPV & MPV ultra high resolution electro-pneumatic closed-loop proportional pressure control valves are ideal for very sensitive applications such as leak testing at low pressures, dispensing and microfluidics flow control. • Resolution (pressure steps) as high as ±0.005% of full scale calibration in single loop configuration • Ideal for constant, low-flow applications too QPV & MPV pressure regulators use a variable orifice valve, which eliminates the digital steps of traditional ON/OFF solenoids. Like most of our products, the QPV & MPV can be modified in numerous ways to meet the most demanding applications.