now browsing by month
Residual pressure valve is a automatic control device with no power provided to maintain a certain static room pressure ,to let air-conditioned room achieve a positive pressure. it is a way to open the air flow adjusting means to adjust the static pressure difference according to the degree of opening, by weight position to balance pressure. Air flow through the valve and pressure is generally between 100-1200m3 / h, maintaining the pressure differential between the 5-40Pa.
Features: It’s beautiful appearance, simple operation, regulation uniform