免费看黄A级毛片_国产伦在线视频大全_福利搞笑电影_内射欧美老妇wbb_狠狠色综合色综合网络_无码专区—va亚洲v专区网站_丁香婷婷色五月激情综合_成人黄片免费看_你懂得在线观看_欧洲αV无码放荡人妇网站

First, SD363H welding bi-directional pressure butterfly Product Overview

Our company can introduce advanced foreign technology, based on sophisticated J-shaped elastic ring and three eccentric multi-layer metal seal structure, is widely used in metallurgy, electric power, petrochemicals, as well as water supply and drainage and municipal construction and other industrial pipelines On, for regulating the flow and breaking fluid use. The valve adopts three eccentric structure, the valve seat and the disc sealing surface are made of different hardness and stainless steel, has good corrosion resistance, long service life, the valve Jun mail two-way sealing function, the product complies with national GB / T13927-92 valve pressure Test Standard.

Second, SD363H welding bidirectional butterfly valve product features

1, the use of three eccentric butterfly valve can be called the top process valve, the design of the valve for the high temperature, high pressure, fire-rated foam sealing ideal for sealing the ideal butterfly valve.

2, due to the use of welding structure, so that the valve and the pipeline plane to achieve a permanent zero leakage.

3, the valve can not be flanged, bringing great convenience and beautiful appearance to the pipe and insulation bandaging.

Third, SD363H welding two-way pressure butterfly valve main technical parameters

 SD363H welding two-way pressure butterfly valve main components and materials

 D363H / 663H / 963H / -10 / 16/25/40 / C, P, RSD363H Welding Bidirectional Butterfly Valve Connection Size