Controles y Válvulas S.A. de C.V.

Automatización, Medición y Control


The Model 4300 end-of-line spring loaded vacuum vent is intended for use on storage tanks, vapor recovery systems and process systems where higher vacuum relief settings are required.


A spring loaded vacuum pallet assembly in the vent housing remains closed until the set point is reached during normal inbreathing due to product movement out of the tank and/or temperature chances. When the set point of the vent is reached, the spring loaded pallet opens to permit the intake of air to prevent tank damage. Once the vacuum is satisfied the pallet closes providing a tight seal.

More in this category: Model 4500 Model 4400