Stainless steel tube connection is diversiform, common types of the pipe compression type, pressure type, living type, type, screw type, socket welding, articulated flange connection, welding and welding with traditional connection way of derived series connection. These connections, according to the principle of different, its scope of application is also different, but most are easy to install, solid and reliable.The application of stainless steel tube with threaded ends is more and more widely.
1. The compression type
Insert the piping into the pipe orifice of the pipe fitting, tighten by nut, compress the sleeve of the pipe orifice through the sealing ring in the way of compression connection, so as to complete the piping connection.
2. The viega profi-press
The stainless steel tube inserted into the pipe fittings, 304 stainless steel pipe fittings at both ends for bulging u-shaped slot, built-in sealing ring, with dedicated 304 stainless steel pipe fittings tool to connect socket part conformity. Scope of application: DN (nominal diameter) ≤100mm.
3. Quick connection flange type
Ring argon arc welding is carried out on the flange and its supporting parts, and the sealing gasket between the flanges is compressed with quick clip, so as to complete the supporting connection. Scope of DN in 15-100 - mm, suitable for public buildings stainless steel tube.
4. Flexible quick coupling flange
Make the traditional flange into a flexible flange, pipe end flanging or welding ring, ring mouth embedded groove, groove sealed rubber parts, use limit compression method to protect the sealing elements. Applicable scope DN below 400mm, can be used as buried pipe.
5. Welding (socket or butt welding)
Ring argon arc welding is carried out on the pipe fitting of normal socket type and its supporting parts, which plays a sealing role to complete the supporting connection. Scope: public buildings and large building stainless steel tube, the DN in 15-100 - mm, DN is greater than 100 mm in the butt welding of the conventional; Indoor can be open dark pack, outdoor burial can be.
6. Hot shrinkage type
304 stainless steel pipe pipe connection, can use spot welding. Due to the site can not deal with the welding point, the use of heat-shrinkable pipe fitting for supplementary sealing, in chongqing 304 stainless steel pipe welding point on a rubber welding cover, and then coat a layer of special cross-chain polyethylene cover, under the action of heat shrinkage, so as to achieve shrinkage seal. Scope of DN below 400 mm stainless steel tube.
7. Screw-type/Thread-type
Ring argon arc welding is carried out between the outer thread sleeve and the supporting parts, and the conical connection of the inner thread pipe fitting plays a sealing role to complete the supporting connection. Stainless steel tube with threaded ends scope of DN in 65-100 - mm, public buildings and large building stainless steel tube, can be used for ground subsidence, such as high temperature and high pressure conditions.
8. Limit compression type
The piping adopts flanging or end welding ring, and the connection mode is live or semi-live connection. After the limit seal of rubber seal ring is compressed by 20%-30%, it enters the metal seal groove, and the limit seal is used to protect the sealing element. The joint may be made of copper or carbon steel. The applicable scope of DN is less than 400mm, which is suitable for subgrade subsidence, various high temperature and high pressure and other harsh environments.
