Vapor Transfer Vents as a key component in the vapor recovery system, the vapor transfer vent (VTV), fitted to the Manhole Cover, provides the means to transfer displaced vapors to and from the tanker Supplied air operated and sequenced with the emergency valve, our Vapor Transfer Vents ensure vapors are transferred safely during the loading and unloading process. Compact, low profile and lightweight bodywith exceptionally high flow characteristics makes this valve the ideal choice for either sequenced or non-sequenced compartment vent requirements.Our vapor vents , with their lightweight aluminum body and stainless steel intemals, set the standards in terms of design features and build quality.Our Vapor Transfer Vents have been designed to incorporate maximum safety, high flow, low-pressure drop, easy maintenance and offer a long service life. The simplicity of their design makes them ideal for oil companies and transporters of petroleum products