Ball valve on pipe is widely used nowadays, in the chemical, oil refining, ju gas mining and conveying system ideal with valve selection. Pipeline can be used in a variety of classes, today for you to analyze the application occasions of high temperature and high pressure forged steel ball valve. Forged steel ball valve is to rely on the working principle of rotary valve rod to make the ball valve open or closed. Can full size ball valve, Angle of 90 ℃, ball valve switch is lightweight, small size, can make large caliber, reliable sealing, simple structure, convenient maintenance, sealing surface and the spherical often in the closed state, not easily be medium erosion, has been widely used in various industries. Forging ball valve is mainly used in the way of high pressure fluid tube, like a normal power plant, electric power, petroleum and petrochemical used above more extensive, because their each units has a super high pressure pump, the pump pressure can reach each moment of a tube, in order to more quickly improve their benefits, such as super pressure pump play out is not like the pressure of the fluid or household fluid in our city so small, but the high pressure system, but their system formation and complex, like a spider web of complex, round round, littering pipes, each outlet, each city to send, so we must have a forged this ball valve, to control their switch. Forging pressure on the ball valve is normally is in: 10. 0MPa- 42. 0 mpa, the material such as forging A105 / forging stainless steel, connection flange, threaded and welding. Main functions: forging ball valve ball Industrial Valves lumen stagnant medium due to temperature change people often booster, medium pressure to push the seat out of the sphere, achieve the result of automatic relief, relief Industrial Valves seat after automatic reset. In addition to general seating, set sealing structure in particular, can play because of the sealing ring damage when leak emergency rescue action. When fire or different temperature to soften seat sealing loss or when. Ball valve is still reliable operation, and at the same time, the seat and metal to metal sphere formation, to temporarily seal effect, to stop the fire to further expand, comply with the provisions of the AP16FA. Unscrew out device can check whether the valve seat leakage occurs, also can discharge midplane retentate to valve's unilateral medium to reduce pollution. In working status, or seated ball valve is fully open, can replace the valve stem packing. Stem parts adopt PTFE packing and double sealing o-ring, especially suitable for the gas medium. Stem movement parts adopt SF, self-lubricating bearings, make smaller friction coefficient, reduce operating torque.
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