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| Throttle control valve selection and application of the classification for |
| Throttle control valve selection and application of the classification for |
We usually choose four kinds of types of throttle control valve to apply a specific environment, which is something we often come into contact with the cage ball, rotating ball valve, eccentric butterfly valve and valve.
Ball Cage film forms a wide range of adjustment to meet the needs of the majority of applications. Cage-type valve adjustments There are many films, in most cases, a body of various trim tab configuration is interchangeable. But the ball cage has several drawbacks: First, the size of valve is limited; second line of sight with the same valve size compared to the lower capacity; third is sold at higher prices. However, reducing process variability, the caged ball valve with superior performance.
Rotating ball valve of the flow and the same diameter larger than the cage-type valve. Although the control of rotating ball valve ball cage over, but to allow the pressure drop and allow the valve temperature range than a small cage. Floating ball valve does not apply to trade from the cavity of the liquid, the higher gas pressure drop, often issuing more noise.
Floating ball valve eccentric valve friction than smaller, lower prices. Its unique structural design for more precise control of process variability.
Look at the performance by valve, butterfly valves are low-grade valve. Butterfly valve of the flow rate, the cheapest price, there are several different caliber. But the butterfly valve characteristic curve characteristic curve is only a kind of proportional, so the load can only be fixed for the occasion. Although there are several different Butterfly valve diameter, but do not meet ANSI Butterfly Valve face to face dimensions on request, does not apply easily from the fluid cavity or noisy places. |
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ICP: 06003029