The V7 preset valve can be mechanically shut down in a single stage or in two-stages. Single stage shut downs are generally utilized with slower flow rates or with more viscous products where hydraulic shock is less of an issue. A two-stage shutdown allows for a slowing of the flow rate before the final positive shutdown, thus avoiding hydraulic shock.
Liquid Controls V7 Valves are designed for a wide range of applications and flow rates and have minimum pressure loss. Careful engineering and construction ensure smooth, accurate, and controlled operation.
V7 Series valves offer the important advantage of a pressure-balanced dashpot design that ensures precise valve response and soft closure at shut-off. Operation is smooth and easy regardless of the line pressure since the vector forces are directed at right angles to the valve opening mechanism and are never in opposition to it.
Materials of Construction