Globe Valves Suppliers in Jordan

A sliding system valve assembly is made of a body and a bonnet. Two common body styles are the globe and angle, globe bodies have the inlet and the outlet on the same axis which allows for a straight run of piping during installation. Angle bodies have the inlet and the outlet on perpendicular axes this effectively makes the valve an elbow in the piping system. Regardless of the body style, the body contains the internal trim components. The common trim components found in a sliding stem valve are the plug and stem assembly, the cage and the seat ring. The plug and stem assembly is the only moving component in the valve body. As the plug and stem slides up and down, the available flow area through the cage is changed, therefore modulating the fluid flow rate. Valve plugs are available in balanced designs and regardless of the plug design, it’s important to properly guide the plug to maintain plug stability and alignment throughout the entire stroke of the valve. Its critical that the plug and seat ring be properly aligned as the actuator force is applied to achieve the desired leakage class.

Now there are several ways to guide the plug, two of which are cage guided and post guided. The last component of the trim is the seat ring held in place by the cage, seat ring retainer or some other means. It becomes the primary orifice or port through which the process fluid will flow. The interaction between the plug and seat ring is critical to achieving the desired leakage class. The seat ring construction may be solid metal or an assembly that incorporates softer materials for less leakage.