Two series are available: 1) HX-AP; 2) HX-CP.

1) The HX-AP VACUUM BREAKER VALVE is mounted on top of a section of containers or pipes, functioning to break the spacial vacuum inside.

The valve opens by means of sucking the springed disc downwards when the pressure underneath drops to -0.01kg to -0.1kg. The atmosphere, thereupon, is able to break in and destroy the vacuum state. On the contrary, the valve shuts and is sealed when the pressure goes up to +0.05kg, pushing the disc upwards back to its place.

2) The HX-CP VACUUM BREAKER VALVE is mounted on top of a section of containers or pipes, functioning to let in and out the air.

The valve opens by means of sucking the negative pressure plate upwards when the pressure underneath drops to minus 20 millimeter of water. The atmosphere, thereupon, is able to break in and destroy the vacuum state. On the contrary, the valve shuts and is sealed when the positive plate drops down to its place after the pressure goes up to 150 millimeter of water, pushing the positive pressure plate upwards and letting out the extra air of pressure.