Vapor Hose for Stage II Vacuum Assist Systems where a pump in the dispenser pulls the gasoline vapors.

Vapor Hose:

Wire braid construction provides excellent kink resistance and low computer creep.

Features:

Superior resistance to wet dry applications that are normal in balance systems.
Venturi is a device that creates a vacuum in a fuel line by constricting the fuel flow. The suction is used to extract condensation and excess fuel from the vapor line by means of a pick up tubing.

VSTs venturi flow sensor opens and closes venturi with changes in line pressure. This unique design provides the industries highest flow rates, 15% to 30%, higher than competitive designs.
All fixed venturi designs must exceed a minimum flow rate before they will function. VSTs variable design compensates for low flow applications, thereby, exceeding the CARB requirements for all flow rates.

VSTs VDV is the only venturi hose to meet CARBs requirements for low flow evacuation of 50 ml at 5 GPM flow rate.
The combined advantages of the VDVs higher flow rate and improved evacuation provide for significantly increased dispenser efficiency in balance systems.