Note the use of Two-end open and closed king combination nipple and Two-end open king combination nipple

　　Two-end open and closed king combination nipple:

　　Not linking: when the mother's ring of king combination nipple is moved to the other end, stainless steel beads automatic roll out, the operation force sub body because of maternal and child body valve spring force and disconnect valve closed, their progeny and parent, instant block fluid flow.

　　Linking: when the body is inserted into the parent, the ring will be back to the original position under the action of the spring, steel ball rolling lock progeny are closely connected, and maternal and child body valve push each other to open, fluid flow, O ring can completely block the leakage of fluid.

　　Two-end open king combination nipple:

　　Not linking: when the ring is pushed to the other end, ball automatic roll out, therefore, the sub body is removed; the sub body and parent are no valves, fluid flows.

　　Linking: when the body is inserted into the parent, ring is active force of the spring is pushed to the previous position to the steel ball lock, fluid flow, the O ring to prevent fluid leakage

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