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Fluid resistance is small, ball valve is the least fluid resistance in all valve types, even the shrinking ball valve, its fluid resistance is quite small. Fluid resistance is small, ball valve is the least fluid resistance in all valve types, even the shrinking ball valve, its fluid resistance is quite small. Lɔ̈ɔ̈i ye cɔl stop-push bearing ye valve rod ye cɔl friction moment ye cɔl stop-push bearing ye cɔl stop-push bearing ye cɔl stop-push bearing ye cɔl stop-push bearing ye cɔl stop-push bearing Valve seat sealing performance is good, using a sealing ring made of materials such as polytetrafluoroethylene, structure is easy to seal, and the valve sealing capacity of ball valve is increasing with the media pressure setting. Valve seat sealing performance is good, using a sealing ring made of materials such as polytetrafluoroethylene, structure is easy to seal, and the valve sealing capacity of ball valve is increasing with the media pressure setting. Valve rod sealing is reliable, because the valve rod does only rotating motion and not do lifting motion, the filling seal of the valve rod is not easy to break, and the sealing capacity increases with the media pressure setting. Valve rod sealing is reliable, because the valve rod does only rotating motion and not do lifting motion, the filling seal of the valve rod is not easy to break, and the sealing capacity increases with the media pressure setting. Lɔnadɛ̈ polytetrafluoroethylene cïmën de kä ye kek looi aye kek looi, ye kek looi, ye kek looi, ye kek looi, ye kek looi, ye kek looi, ye kek looi, ye kek looi, ye kek looi, ye kek looi.