Multi uses of Severe Service Ball Valves

Ball valves are mainly used for controlling the flow of liquids in industrial and commercial piping systems. The tight closedown feature of Severe Service Ball Valves makes them particularly suited for flow control applications in high pressure and high temperature conditions. They are mainly used in fuel  reforming, refining, power, marine, petrochemical, and process industries. Design engineers developing valves for challenging applications should match the performance of the valve's component elements with the needed flow, temperature, and pressure conditions.

 

Port size and the position in which the ball is held in the valve body are two remarkable aspects of ball design. The cavity diameter of a Severe Service Ball Valves is called its port size.

 

Full Port Design

The port size of a full port ball valve is about the same as the pipeline's inner diameter. These designs are suitable for applications that warrant minimum resistance to the flow of fluids.

Regular Port Design

Compared to full port designs, the hole diameter of regular port ball valves is small and show increased resistance to fluid flow.

Reduced Port Design

The hole diameter of a lower port ball valve is just about equal to 60% of the valve's inner diameter. This ball valve design is convenient for small, end-loaded valves that need small-diameter balls.

A Severe Service Ball Valves flow control area element can be assembled to the ball covering by two ways: the trunnion-mounted ball design and the floating-ball design.

The Floating-Ball Design

Two seat rings are used to hold up the ball in a floating-ball design. In floating-ball design, the flow control stick is attached to the ball at an insert right angle to the ball valve's port. This setting makes the ball to float or move in the direction of the seat ring on top when the shaft is rotated. 

The Trunnion Design

In trunnion design, the ball is carried by two trunnions addition at the ball's top and bottom ends. These trunnions are fond of bearings, which are in turn gathered to the valve body.