2014年3月19日星期三

Plug valve, a typical but Considerable Valve




Plug valve, which largely made for reducing, separating coupled with directing the medium is normally utilized in chemical, petroleum, organic gasoline and many other industries. This valve opens coupled with closes by way of its cone or cylinder-shaped plug cock moves with valve stem. This valve is currently offered in Twin Seal Plug Valve, lubricated Plug valve, three-way four-way Plug valve.

Pros & cons

Each type about Plug valve offers benefits plus disadvantages. There exists no exception to the Plug valve. Prior to purchasing this valve, it??¡ê¡ès necessary to be aware associated with its pros and additionally cons.

Pro

§ This valve is simple in structure together with component including a valve body, a plug cock, a sleeve, an actuator, etc.
§ It also allows users to make it open close without much problem.
§ It??¡ê¡ès characterized by lightweight plus easy maintenance.
§ Another pro connected with this valve is that it can be installed without any limit in direction.
§ When it comes to the sealing property, the sleeved Plug valve won??¡ê¡èt let you down.
§ During this valve works, it contributes to less noise coupled with vibration.
§ It also features small flow resistance.
§ Lastly, it reduces the cost. This is because the fact that this valve comes with 3 or four-way type with far more functions, meaning it??¡ê¡ès able to replace other valves.

Con

§ Although the Piston Check Valve is superiority in sealing property, it contributes to fragility of sealing surface that signifies its sealing surface may be easily worn out.
§ This valve requires a higher demand connected with manufacturing process, so that Plug valves producer may spent a lot about cost on the manufacturing process of the Plug valve.

The realm of application

§ As I mentioned before, the sealing surface regarding the Plug valve will abrade easily. Therefore, this valve isn??¡ê¡èt suitable for condition with high temperature and then pressure.
§ With respect to a requirement of good sealing property, Plug valve can come into play because of its excellent sealing performance.
§ As medium is concerning suspended particle, it??¡ê¡ès recommended that using the Plug valve.
§ This valve can be utilised in a condition with the need for regulation. If you are using a Tilting Check Valve, it??¡ê¡ès right for chopping the flow. The three or four-way Plug valve is fit for directing the flow.

Plug valve is widespread in all walks associated with life, though it??¡ê¡ès one of the most commonly used valves. Before you decide to purchase the Plug valve, its merits, disadvantages, performance together with application should certainly be aware associated with in advance.

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