国产又粗又黄又爽_中国女人a毛片免费全部播放_国产女人被躁高潮视频在线视频最新_一级毛片免费完版_成人精品欧美日韩_五月丁香色综合久久4438_国产成年人免费观看91视频_宅宅236伦理2019最新_blue在线观看视频全集资源_国产欧美日韩麻豆三级

簡體中文版 English

Product List

Check valve forged steel valve cover design in three forms. The first is a bolt type valve cover, according to this design form design of the valve, the valve body and the valve cover bolt nut connection, spiral wound gasket (316 clamp flexible graphite sealing manufacturing). Customers have special requirements can be used when the metal ring is connected. Second kinds of design form is the welded bonnet, according to this design form of the valve, the valve body and the valve cover with a threaded connection, welded seal. Customers have special requirements can be used when the third is connected through welding. Junctionvalve pressure valve cover, according to this design form design of the valve, the valve body and valve cover with a threaded connection, pressure from the dense ring seal.
There are three different design structures, which are lift check valve, ball type check valve and swing check valve.
Note: parameters are for reference only, or are not full. Valve can be used in accordance with the requirements of different pressure, material, diameter, drive, etc.. Specific please contact or online advisory contact.
Mandatory
Mandatory
Mandatory
Mandatory

Be sure to write clearly consulted or purchase products detailed parameters and quantity.