Quick Details

General Description

A slotted ball and a V-Port ball with a small angle opening, such as a 15°ball, furnish a linear inherent flow characteristic. medium angle V-Port valves such as a 30°ball furnish a modified equal percentage inherent flow characteristic. Custom ports are also available to meet special control requirements.

Advantages

Flow control

The precision of V-Ball valves offers equal percentage flow characteristics that are generally not associated with a standard ball valve.

Bubble tight shut-off

V-ball valves have the capability of tight shut-off. Thus, additional shut-off valves are not required when using a V-ball valve over globe control valves.

Lower pressure drop

V-Ball valves also have higher flow coefficients (Cv) compared to the same size globe valve which diverts flow and uses a plug to control the flow through the valve. This means that smaller V-Ball sizes can be used to achieve the same flow rate as a larger size globe valve.

Higher shut-sff pressure

The 90°ball rotation allows the V-Ball to shut off at higher working pressures. Thus, allowing lower torque actuators to be used, resulting in cost-saving and higher efficiency for the end-user.

Technical Drawing

Witness Test

Nameplate

Product Application

Dervos valves can be widely used in varieties of industries, such as petrochemical, pipeline, oil & gas, marine, water treatment, power station industries and etc.