Control Seal Pdf For Free

How Does a Plug Valve Work? A plug valve is based on a plug with a hollow passage in the valve body. The quarter-turn motion creates an alignment between the pipe and the hole, leading to an open state. When turned to a 90-degree angle from the open position, the valve sits across the pipe leading to a closed state.

The four-way diverter model of the GENERAL* valve does not rely on line pressure or external hydraulic pressure for positive sealing. The seating elements, or slips, move perpendicularly against the face of the ports. The seals themselves are highly resilient elastomers that are either bonded or mechanically retained.

A plug valve is the best choice for sensitive applications as they offer perfect sealing and a straightforward application structure. Also, they cost less than ball valves. However, they are not as compact as ball valves and cause a pressure drop from inlet to outlet.

Flow Control/Isolation Because of the ?plugged? and ?open? configuration that's easily controlled, plug valves offer great flow control and isolation of materials. These valves can easily seal and separate liquids to avoid contamination or mixing, which is also crucial for certain high-pressure applications.

Advantages of plug valve It can be quickly open or close. This valve offers minimal resistance to flow. The use of multi-port designs helps in reducing the number of valves needed and permits a change in the flow direction. It provides a reliable leak-tight service.

Applications: Plug valves are widely used in the chemical, petroleum, gas, pharmaceutical and food industries. Due to its outstanding advantages, it is an excellent and perfect solution for highly corrosive environments and complex chemicals.

These plug valves can handle high pressure hence they are used in high-pressure applications like coiled tubing, cementing, acidizing, high-pressure/temperature materials, etc. The lubricated plug valves are used here since they won't get clogged and can handle corrosive materials.