1overview

This device is applied to the top of the warehouse and automatically opens when the pressure inside the warehouse exceeds the normal range for pressure relief, serving as pressure protection.

2、 Mainlycharacteristic

1. This device adopts a large diameter exhaust port (508mm), and the exhaust port cover is made of aluminum alloy, which is lightweight and sensitive to pressure changes. By using the weight of the valve cover to set the opening pressure, even through long-term operation, the correct and reliable opening pressure can be ensured.

2. Adopting aluminum alloy and cast iron structure, corrosion-resistant and aging resistant.

3. The structure is simple and there is no maintenance workload during normal operation.

4. The vacuum release valve operates flexibly and reliably.

3、 Technical parameters

Entrance size mm	Standard air permeability valueKgf/cm2		Maximum breathability valueKgf/cm2
	pressure	vacuum	pressure	vacuum
508	7.69×10-3	2.2×10-3	26.36×10-3	8.8×10-3