Product URL: http://www.wzyd.com.cn/pro_show.asp?key=17 
 Product Website: http://www.wzyd.com.cn/product.asp?typeid=10 
 Product Description 
 Pneumatic ball valve Q41F-16P / R, Q41W-16P / R is a double (single) acting pneumatic piston actuator, and a floating ball valve components. It is a compressed air-powered, driven spool valve stem in the valve body rotation 90 °. The product can be divided according to their sealing and soft sealing metal seal. Has a compact structure, small size, line, reliable, good sealing, easy maintenance and so on. Widely used in petroleum, chemical industry, light industry, pharmaceuticals, paper and other industrial automation systems. 
 Pneumatic valve characteristics and uses 
 Pneumatic ball valve is mainly used for cut off or connected to piping in the media, can also be used for fluid regulation and control, compared with other valves, has the following advantages. 
 1, fluid resistance small, ball valve in the fluid of all kind of least resistance, even necking ball, the fluid resistance is quite small. 
 2, the stem thrust bearing reduces friction torque, can stem the long-term stable and flexible operation. 
 3, the seat sealing performance, the use of Teflon and other seals made of elastic material, the structure easy to seal, and the ability with the ball valve closure increased with increasing media pressure. 
 4, stem seal, reliable, because stem not only do the operation for turning down imitation of movement, stem packing seal is not easy to destroy, and the sealing ability increased with the increase of the pressure medium. 
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