ZZV decline of self-reliance is a pressure regulating valve without additional energy use by the media itself for pressure changes can be automatically adjusted with movements sensitive, high precision control, energy conservation and so on.

This series of micro-pressure valve Nominal pressure of 0.1 MPa, from 30 to 0.1 MPa mmH2O sub-regulation can be widely applied to various micro-pressure gas pressure regulator or pressure relief Zang regulated control. ZZV-C type commonly used in the differential regulation of industrial combustion furnace control system two mixed-materials (such as gas, air) ratio, achieve the desired state of combustion.