Proportion Air has introduced QPV1, which is a high resolution pressure control valve. The QPV1 utilizes a true proportional inlet valve that eliminates digital stepping by employing a variable orifice. It uses a field adjustable dead-band to add stability to optimize performance in a process and provides resolution as high as +/- 0.005% of full scale calibration in a single loop configuration. As QPV1’s specs allow for superior system resolution, the product is ideal for very sensitive applications like leak testing at low pressures, dispensing, and microfluidic applications.
The QPV1 has a redesigned manifold that allows for options in output control with two output ports (bottom and side). This standard manifold is made from aluminum, and can be used to control low pressure, vacuum or vacuum through positive pressure in the same unit.
For any application, the QPV1 can be calibrated as low as 0-2 inches of water column or to any calibration from full vacuum to 150 PSI. This guarantees that you get the best possible accuracy and resolution for your application.
In the laser industry, the QPV1 is the device of choice for controlling gas pressure to an automated laser welder.
