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control contact us get a quote home products ball valve fully welded ball valve fully welded ball valve the fully-welded ball valve adopts welded body, instead of bolts and nuts, to avoid any potential leakage from body, have very stable performance and long service life. weldon fully welded ball valves
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top of the seat, called "high-in and low-out". in the upper part of the disc, the valve is easy to seal, but such a valve has a large opening torque which is easy to cause leakage of the sealing packing, and the valve packing cannot be replaced. in general, considering the closing torque, for globe valves
≤ inch, with nominal pressure ≤ pn , we should mostly use the flow direction of "low-in and high-out", while for globe valves ≥ inch, with nominal pressure ≥pn , we mostly use "high-in and low-out." in order to reduce the opening or closing torque, the valve is normally set by an internal bypass or...
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