Cantonese-style threaded stainless steel ball valve closure member is a sphere, the sphere rotating around the center line valve to achieve open, and close a valve. Ball in the pipeline is mainly used for cutting, distribution and change the direction of flow of the medium. Cantonese-style ball valve is a new type of valve has been widely used in recent years, this valve is generally installed horizontally. Stainless steel inner thread ball wide performance specifications ☆ design and manufacture: ANSIB16.34 Testing: Press API598 ☆ structure Length: According GB / T 15188.3-94 ☆ Working Pressure: 1000PSI (7MPa) ☆ Temperature range: -40 ~ 300 ℃ ☆ Applicable medium: (C) water, oil, gas (P) nitric acid (R) acetic acid class ☆ Thread standard: BSP, BSPT, NPT, DIN259 / 2999, ISO228, RP, RC ☆ Specifications: 1/4 "~ 4 "☆ material standards (C) ASTM A216-WCB; DIN1.619 (P) (R) ASTM A351-CF8 (304), DIN1.4308; ASTM A351-CF8M (316), DIN 1.4408 stainless steel ball wide inner thread The advantages: 1. Fluid resistance, its drag coefficient with the same pipe lengths are equal. 2. Simple structure, small size and light weight. 3. Close and reliable valve sealing surface material widely used plastic, sealing, vacuum system has also been widely used. 4. Easy to operate, opening and closing rapidly, fully open to fully closed as long as the rotation of 90 °, to facilitate remote control. 5. Easy maintenance, simple ball valve, seals are generally activities, the removal replacement is more convenient. 6. In the fully open or fully closed, the sealing surface and the dielectric isolation ball and seat, through the media, does not cause the valve sealing surface erosion. 7. Wide range of applications, from small diameter to a few millimeters to a few meters from high vacuum to high pressure can be applied. Cantonese-style threaded stainless steel ball valve installation and maintenance should note the following: 1. To leave the valve handle rotated position. 2. Can not be used as throttling. Ball 3 belt drive mechanism should be installed upright. Cantonese-style structure features stainless steel ball valve internal thread: 1, open and close without friction. This feature completely solve the traditional valve sealing surface due to friction between the seal and the impact of the problem. 2, low torque design. Special structural design of the stem, just with a little handle you can easily open and close the valve. 3, wedge-shaped sealing structure. The valve stem is provided by mechanical force, the ball onto the seat and wedge pressure seal, the valve seal is not affected by changes in pipeline pressure, sealing performance under various conditions have a reliable guarantee. 4, self-cleaning sealing surface structure. When the ball away from the seat tilt, the pipeline fluid along the sealing surface of a sphere through 360 ° uniform, not only eliminates the high velocity of the seat of local erosion, but also washed away the sealing surface accumulations reach self cleaning purposes .