Press the connection method (1) Threaded valve: with internal or external thread valve fittings, and pipe thread connecting .. (2) Flanged valves: oxygen valve body with a flange connected to the pipe flange . (3) welding connection valve: Body with welding groove connected to pipe welding. (4) clamp connection valve: Body with jaws, pipe clamp connection. (5) connected to the valve sleeve: the pipes are connected to the ferrule. (6) of the clip connection valve: bolts directly to the valve and two pipes connected together in the form of wear clip. JB / T2766-1992 PN16.0 ~ 32.0MPa pipes, fittings, valves ends dimension JB / T2769-2008 PN16.0 ~ 32.0MPa threaded flange JB / T2770-1992 PN16.0 ~ 32.0MPa connector nut JB / T2771- 1992 PN16.0 ~ 32.0MPa joint JB / T2772-2008 PN16.0 ~ 32.0MPa blind JB / T2773-1992 PN16.0 ~ 32.0MPa stud JB / T2774-1992 PN16.0 ~ 32.0MPa order end double stud and screw size Seiko valve, the valve out of Hong Kong (online consultation), Zhuhai, Dongguan valve by valve, the Hong Kong Science and Technology Co., Ltd. Valve Co., Ltd., Dongguan Ming Kong (www.gdmgfm.com) is Dongguan, butterfly leaders, over the years, the company implement the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Ming Kong valve leadership with the staff warmly welcome all inquiries negotiations to create a better valve out of Hong Kong in the future.