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DN3000 Rotary ball valve with double direction metal sealing is a combination of superior sealing performance of ball valve and advantage of butterfly valve in structure and properties.It not only has the advantage of double directional sealing,long life time of ball valve ,but also has the advantage of small size ,adjustable, light weight of butterfly valve. Its essence is a eccentric hemisphere valve with butterfly structure.Sealing principle,combined with the front-end sealing of fixed ball valve and forced sealing of eccentric butterfly valve,thereby achiving the bi-directional cutting fluid no matter pressure is high or low . On the two sealing surface of valve ,plasma spraying and surfacing process can be used to different hardness to form hard alloy .It can automatically align the center(self-adaption),automatically compensate for wear,automatically put in high hermetical pressure,and there is no friction between the seal when the valve instantly opening and closing .When opening the valve,the disc projection continuously retracts and goes backwards;when closing the valve,the disc projection continuously swells and moves forward. Its advantages of short structure and small volume allow for the possibility that valve with large size can be made.The valve has the features of double direction sealing,convenient installation,reliable operation,which has been a major technology revolution in the valve industry.
Benefits
1.Designed with bidirectional sealing structure,the installation of the DN3000 rotary ball valve will not be restricted by the direction of the fluid.
2.Since the metal sealed bidirectional rotary ball valve is offered with self-sealing device,reliable sealing performance can be realized under the pressure from medium.
.Powerful specific pressure of sealing can be obtained the valve is installed on the direction in opposite to that of the fluid.The pressure acts on the valve seat of the bidirectional rotary ball valve. The contact area of the point action is annular,
4.The valve has long service life due to wear compensation.
5.The unique rotational structure ,as well as the sphere-conical sealing surface of the valve seat,makes for the cleaning function the solid particle will be crushed when the electric operated bidirectional rotary ball valve is opened or closed.
Technical Specifications
Body material ：WCB
Sealing material：Hard alloy
Connection type：Flange and weld
Operating type：Worm Gear
Size ：DN3000
Pressure：PN1.6MPa
Application
Municipal Engineering
Circulating water system
Water treatment system
Fire extinguisher system
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