Воздушный клапан

summary: The air-conditioned room or the purified room in the air-conditioning system can’t control itself automaticly without energy pressure. However, it will not occur in the condition that the valve plate be matched with a heavy hammer, which can be adjusted to change the valve closed moments. Then, the area will maintain at a certain pressure. Its advantages are as follows: sensitive reflection, convenient regulation, energy conservation, tightness, etc. Performance: 1) the range of flexible pressure: 0.5—5mmH2O 2) the blade angle: 45。 3) It can be installed directly on the wall, in the effect of balancing the pressure between indoor and outdoor automatically. The valve will open automatically when indoor pressure is bigger than outside.