黄色在线观看污_成人啊好痛轻一点a级_午夜視頻在線觀看國產www_亚洲aⅴ无码牛牛影视_亚洲国产精品一区二区久久评价_激情五月综合人妻婷婷_av无码最新在线播放网址_护士爽到疯狂潮喷好爽_日韩精品综合日本欧美色_91成人午夜性A一级毛片蜜臀

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