J91W, J94W ferrule needle valve and ball valve difference is bigger, we can distinguish from the function to go up and ball valve and J91W J94W needle type of cutting sleeve type has the different effect of cut-off valve, from ball valve and J91W, J94W ferrule needle valve structures. 【 Functional difference between 】 J91W/J94W card sleeve type needle valve sealing good, generally used for small flow, suitable for high pressure gas or liquid ( Such as steam, oil) Seal of the medium. Long service life, even if the sealing surface damage, also need to replace quick-wear part only, can continue to use. Widely used in petroleum, chemical industry, power plants, metallurgical and other industries. Ball valve and J91W, J94W ferrule needle Industrial Valves difference is bigger, ball valve, 球阀) Opening and closing is a sphere, driven by the valve stem, and for ball valve axis rotate 90 & deg; Open or closed. Can also be used on regulation and control of fluid, mainly used for cutting in line, distribution, and change the flow direction of medium, good sealing, convenient operation, opening and closing fast, simple structure, small volume, small resistance, light weight, etc. 【 Physical difference between 】 J91W, J94W card sleeve type needle valve ball Industrial Valves' Summary 】 J91W, J94W ferrule needle valve and ball valve difference on and use function, are quite different in application, in the selection of a certain need to pay special attention to diameter, pressure, material and use of media, whether at design time, or in the purchase, must be in strict accordance with the relevant technical requirements.
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