The picture on the left shows a typical rising stem control valve with standard packing. More modern packing designs, shown on the right, employ compressed Belleville-type or other special springs to ...

Valve Stem Packing is a general term for a sealing mechanism. Regardless of valve type, all stem actuated control valves require some form of sealing that allows stem movement from some external ...

Valve Stem Packing refers to a sealing mechanism essential for stem-actuated control valves across various valve types. This sealing mechanism allows stem movement from an external device (actuator) ...

Not loosening the gland packing prior to turning the valve stem may cause the valve to leak. In addition, make sure you tighten the nut when you are finished manipulating the valve stem. When opening ...

Valve Stem Packing is a general term for a sealing mechanism. Regardless of valve type, all stem actuated control valves require some form of sealing that allows stem movement from some external ...

Real-world valves include damping in the form of valve stem packing friction, contact between the plug and the cage, and contact between the stem and a guide bushing.

Azbil announced that it began to sell control valves with a low-emission gland packing system that reduces the leakage of VOCs.

Garlock Style 5882 valve stem packing materials are available with carbon bushings, and can be custom designed for unique dimensional requirements.