American Standard steel strength test manually track ball I. Product Overview: trackball valve is a new and practical goods, with a high-performance ball valve 90-degree rotating ball core pendulum interception. China is currently using Q-ball are given under preload ball core seat inconsistent conduct on and off, often resulting in the sealing surface is damaged, the valve leak and stuck appearance, trackball valve that is to be updated for the above common shortcomings design makes the new ball valve core is rotated 90 degrees and then switch the ball to make contact sealing surface conflict, arrived in no leak of security intention, and greatly improve the life of the valve. Hand wheel clockwise to scroll with precision guide groove so that the ball rolling 90 degrees clockwise on the stem, in the wedge effect of the stem arm swing the ball forward to force the ball sealing surface abuts the valve seat sealing surface, arrived sealing effect. The ball rolls counterclockwise hand wheel counterclockwise to scroll to stem the rise, the ball under the effect of stem cell and stem accurate arm wedge guide groove, the first from the sealing surface (no conflict) was 90 degrees, arrived at the open. Therefore, this product is very suitable for flammable, explosive, volatile, toxic and other environmental conditions under safe and reliable operation. Widely used in chemical, petroleum, light industry, medicine, textile, papermaking, environmental protection, military installations, airports and other transportation pipeline media interception or turnover. Second, product characteristics: 1, open and close without conflict. This function fully processed due to a conflict between the traditional valve sealing face each other and affect the sealing of doubt. 2, the coat structure. Of the valve installed in the pipe can be directly viewed online and repair. Parking can effectively reduce the equipment, reduce production costs. 3, single-seat plan. Remove the valve in the cavity due to abnormal media boost and affect the use of security questions. 4, low torque plans. Stem exceptionally structure plan, just with a small hand wheel can easily open and close the valve. 5, wedge-shaped sealing structure. The valve stem is supplied by mechanical forces, ball and wedge against the seat and seal. The valve sealing function without the impact of changes in pipeline pressure, the sealing function in a variety of conditions have a reliable guarantee. 6, self-cleaning sealing surface structure. When the ball away from the seat tilt, the pipeline flow experience along the sealing surface of a sphere uniformly through 360 °. Not only eliminates the high velocity fluid on the seat portion of the erosion, but also washed away the sealing surface accumulations, arrived in the self-cleaning of intent. Third, the technical parameters: Model GQ47H-16C GQ47H-25C Working Pressure (MPa) 1.6 2.5 Operating Temperature (℃) -190 ~ 550 For medium water, steam, oil data body, bonnet WCB stem 2Cr13 ball WCB + HCr / STL Seat 25 Flexible graphite packing four main parts? Parameter: Part name Information Body WCB ZG1Cr5Mo 18-8CrNi 18-12CrNiMo bonnet WCB ZG1Cr5Mo 18-8CrNi 18-12CrNiMo stem 2Cr13 38CrMoA1 1Cr18Ni9Ti 1Cr18NiMo2aTi sphere WCB + HCr 1Cr5Mo 18-8CrNi 18-12CrNiMo Seat PTFE / 13Cr / CrNi? SS + STELLITE studs B7 / 35CrMoA 1Cr17Ni2 Nut 2H / 45 2Cr13 packing PTFE / graphite reinforced flexible