Single call valve

Single snore valve is a device which makes full use of the pressure bearing capacity of the oil tank itself to reduce the oil vapor emission, so that the pressure in the tank will not continue to decrease.

The single call valve is generally installed horizontally in the pipeline. The principle of single vent valve is to control the positive expiratory pressure and negative suction pressure of oil tank by using the weight of valve disc. The single vent valve makes full use of the pressure bearing capacity of the oil tank to reduce the oil vapor emission, so that the pressure in the tank will not continue to decrease.