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Square Tube Connect Way

Date:2017-12-01    keywords:square Tube
Stainless steel square tube connection is varied, the commonly used types of the pipe fitting viega profi-press, compression type, propulsion, welding and various derived connection mode, many manufacturers are independent development of patented products. Each of these connection modes has its own characteristics and applicable occasions, but without exception, it ensures strong, reliable and no leakage.

1, Card-type: the square tube into the pipe fittings, pipe fittings at both ends of the protruding U-shaped groove, built-in seals, with special pipe fittings bearing parts of the pressure connection. Scope of application: DN (nominal diameter) ≤100mm, can be installed secretly deposited. 

2, Compression type: the square tube into the pipe fittings, fastened by the nut, with a spiral force to the mouth of the casing through the seal ring compression, sealing effect, to complete the square tube connection. Scope of application: DN≤150mm, can be installed secretly deposited. 

3, Welding type (socket or butt welding): the usual socket-type pipe fittings and ancillary ring argon arc welding, sealing effect, to complete the connection. Scope of application: Public buildings and large buildings of the pipeline, DN 15 mm -100mm, DN greater than 100 mm to the conventional butt welding as much; indoor can be installed Concealed, can be buried outdoors.

4, Quick access flange: ring and supporting the toroidal welding, with a quick clip to seal the gasket between the flange compression, sealing effect, to complete the matching connection. Scope DN in 15 mm-100 mm, public buildings and large buildings pipeline.

5, Taper thread type: on the external thread sleeve and supporting the ring TIG, female thread pipe fittings to play a conical sealing effect, to complete the matching connection. Scope DN in the 65 mm-100 mm, public buildings and large buildings pipeline, can be used for foundation subsidence, high temperature and pressure and other harsh environments. 

6, Limit compression: square tube flange or port welding ring, the connection is live or semi-flexible connection, the rubber seal limit sealing 20% ??-30% compression, into the metal seal groove, the use of limited Sealing to protect the sealing element. Connectors can be made of copper or carbon steel. Scope of DN below 400 mm, suitable for subsidence, all kinds of high temperature and pressure and other harsh environments. 

7, Quick-connect live flange: the traditional flange into a live flange, square tube flange or flange ring, ring mouth groove embedded in the groove sealed rubber parts, the use of limit compression method Protect the sealing element. Scope DN below 400 mm, can be used as buried pipe.

8, Shrink tube: square tube connection, you can use on-site welding. As the site can not handle the welding spot, the use of heat shrinkable tube as a supplementary seal, welded joints in the pipe set of a rubber welding sleeve, and then covered with a layer of special cross-linked polyethylene sleeve, shrinking under the heat so as to achieve shrink seal. The scope of application of DN below 400 mm in the pipeline.

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