PQ340H, PQ340Y, double eccentric PQ340F half ball valve and ball valve difference is bigger, we can distinguish from the function to go up and ball valve and PQ340H, PQ340Y, double eccentric PQ340F half ball valve different effects, from ball Industrial Valves and PQ340H, PQ340Y, PQ340F double eccentric half ball valve structure. 【 Functional difference between 】 PQ340H/Y/F double eccentric ball valve using eccentric body, eccentric sphere and valve seat, the valve lever make the rotary motion in common path self-centering, shut off more and more tightly in the process of fully achieve good sealing. The valve ball and seat completely out, eliminates the sealing ring wear, wear overcomes the traditional ball seat and the spheroid packing surface of the problem, non-metallic elastic material embedded in the metal seat, seat metal surface are well protected. This product is especially suitable for steel, aluminium, fiber, tiny solid particles, pulp, coal ash, such as liquefied petroleum gas (LPG) medium. Ball valve and PQ340H, PQ340Y, double eccentric PQ340F half ball valve 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 】 PQ340H, PQ340Y, PQ340F double eccentric half ball valve ball valve' Summary 】 PQ340H, PQ340Y, PQ340F double eccentric ball valve and ball valve and using the difference 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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