H44H, H44W check valve and ball valve American standard, the difference is large, we can distinguish from the function to go up and ball valve and H44H, H44W check valve American standard, different effects, from ball valve and H44H, H44W check valve American standard to distinguish the structure. 【 Functional difference between 】 H44H, H44W check valve is widely used in American standard nominal pressure lb - 150 Temperature - 2500 lb, work 29 ~ 550 ℃ in the petroleum, chemical, thermal power plant under various working conditions such as piping, applicable medium: water, oil, steam, etc. Its main role is to prevent the backflow medium, to prevent the pump and its pattern in reverse driving voltage, and the discharge of the containers within the medium. Ball valve and H44H, H44W check valve American standard difference is bigger, ball Industrial Valves, 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 】 H44H, H44W check valve ball valve American standard Summary 】 H44H, H44W check valve and ball valve American standard, the difference in the 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, no matter when the design, or in the purchase, must be in strict accordance with the relevant technical requirements.
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