IMPA 872336 Air Vent Head

The IMPA 872336 air vent head is intended for endof-line installations on air pipes of water tanks, oil tanks and so on onboard ships. The function of the air vent head is to allow air to enter and leave the tank freely when necessary, in order to prevent excessive pressure in the tank. At the same time the device shall prevent the ingress of seawater into the tank, but allow passage of liquid from the tank in case of overfilling. The IMPA 872336 air vent head is approved by NK, ABS, LRS, DNV and BV for absolute durability. If you are interested in our air vent head, please contact us at any time.

Overview

Internals

The internals of an air vent head are typically very simple. In most cases only a float and a sealing ring. Both items should be easy to exchange when maintaining the air vent head. The float that prevents the ingress of seawater into the tank, but allows passage of liquid from the tank in case of overfilling. The material chosen can be both a polymer or a metal surface. The internals are often the components that are not maintained because they are not clearly visible and therefore it is recommended that internal components are exchanged every 5 years.

Drawing