Features of Floating Ball Valves
Coco Qian (Industrial Valve)
Valve Supplier Specialist | Focus on EPC & OEM Partnerships Senior Sales Representative (FOOWELL VALVE (WENZHOU) CO., LTD)
Under the effects?of the medium?pressure, the ball can take?a certain?displacement and be pressed?against?the outlet side of the seal, to ensure that the outlet end is?sealed and the seal is a single-side forced seal. The design of?floating ball valves?should focus on whether the material?of the sealing ring can withstand the?load?of the ball's?media. Because the?load of the media the ball bearing?is totally?passed to the outlet?sealing ring, therefore, this floating ball structure is widely used in middle and low pressure?ball valves.
Features
1.?Floating ball valves?have the minimal flow resistance?among?a variety of?valves; and when the full bore ball valves are open, the diameters of the ball channels, valve body channels?and?connecting?pipes?are same, thus the media can flow through without?any loss.
2. Floating ball valves can be fully and quickly opened and closed by being rotated?90 degrees. They also have advantages of small sizes, light weight and being easy to be installed in pipelines compared with?those of gate valves and globe valves which have the same specifications.
3.?Floating ball valves?have advanced valve seats which are designed according to the many years' ball valve manufacturing experience to ensure that floating ball valves have good seal?performance, low friction coefficient, small?operating torque, wide range?adaptation and a variety of seat materials.
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4. Floating ball valves have unmistakable?handles which use flat headed?valve?stems to ensure that?the connection of the handles?will not be dislocated, so as to guarantee?that the state?of the pilot?switches is as same as that of the?valves.
5.?Floating ball valves?have locking devices with locking holes in the fully open?and?fully closed positions in order to prevent the misuse of valve switches?and ensure correct positions of?valves.
6. Floating ball valves have the anti-fly structure?valve stems which are?installed from the bottom?to prevent thr flying out due to?pressure, and can form metal contacts with valve bodies?after fire to ensure the seal?of valve stems.
In conclusion,?floating ball valves?have balls with circular holes as their discs which can rotate from 0 degree to 90 degrees around the center of the valve stems?driven by the valve stems?to implement?the opening and closing functions. They also feature?in compact structures,?being quickly opened and closed which help to cut the flowing of the media in the pipelines by rotating?90 degrees and finally to close valves. Floating ball valves' ball channels have the same diameters?as pipes', but have small?flow resistance and large?circulation capacity. Their?stems are installed from the bottom?which eliminates the occurrence of the valve piercing accident and ensures the safe use of valves.