stainless steel U bend tubes&pipes heat exchange tubes&pipes

heat exchanger U-tube ; U-shape heat exchanger tube;

Stainless Steel U-tube,U-shape tube heat exchanger ,U-shape heat exchanger tube ,Stainless Steel U-shape Heat Exchanger tube, Stainless Steel Seamless Heat Exchanger U-tubes, ASTM A312 Stainless Steel Seamless U-tubing,U-tubes, Stainless Steel U-shape tube,Stainless Steel Seamless U-shape Heat Exchanger tubes

heat exchangeres as its name implies, this type of heat exchanger consists of an outer, elongated shell (large pressure vessel or housing) with a bundle of smaller diameter tubes located inside the shell housing. One type of fluid runs through the smaller diameter tubes, and another fluid flows over the tubes (throughout the shell) to transfer heat between the two fluids. The set of tubes is called a tube bundle, and may be composed of several types of tubes; round, longitudinally finned, etc. depending on the particular application and fluids involved.

There may be variations on the shell and tube design. Typically, the ends of each tube are connected to plenums or water boxes through holes in the tubesheets. The tubes may be straight or bent in the shape of a U, which are called U-tubes.

U-tube designs are specified when the thermal difference of the fluids and flows would result in excessive thermal expansion of the tubes. U-tube bundles do not have as much tube surface as straight tube bundles, due to the bending radius, and the curved ends cannot be easily cleaned. Additionally, interior tubes are difficult to replace, many times requiring the removal of outer layers, or simply plugging the tube. Because of the ease in manufacturing and service, it is common to use a removable tube bundle design when specifying U-tubes.

Typical U-Tube Bundle Tubesheets of Heat Exchangers

Tubesheets are usually made from a round flat piece of metal with holes drilled for the tube ends in a precise location and pattern relative to one another. Tube sheet materials range as tube materials. Tubes are attached to the tube sheet by pneumatic or hydraulic pressure or by roller expansion. Tube holes can be drilled and reamed and can be machined with one or more grooves. This greatly increases the strength of the tube joint.

TINSI-STEEL has grown try to be one of the leading manufacturer and supplier for the seamless stainless steel boiler exchanger tubes such as ASTM A213, ASME SA213, Stainless Steel tubes, Heat Exchanger Tubes, Light Gauge Stainless Steel tubes, and Stainless Steel BA Tube,and Stainless Steel Sanitary Tubing and capillary.

U-Tube heat exchanger tube These high performance tubes are available at dimensions between 12.70 mm and 38.10mm OD, which covers the majority of the standard sizes used. However, Fine Tubes also specializes in the development and production of small diameter thin wall tubing associated with applications in the aerospace and nuclear industries. TINSI-STEEL minimum size of seamless tubes and tube is 3mm OD  with a 0.3mm wall thickness ; welded tubes and tube is 0.98mm OD with a 0.04mm wall thickness.

Table. Most mainly used sizes of heat exchanger tube for tinsi-steel

TINSI heat exchange tubes can be supplied in straight lengths up to 20m. Completed packages of U-bent and C-formed tubes can be supplied ready to be installed in the tube sheet of shell and tube heat exchanges.

Table. Most mainly sizes range of U-Tube heat exchanger tube for tinsi-steel used (AWG/SWG/BWG)

Grade available of TINSI-STEEL

Austenitic:TP304,TP304L,TP316,TP316L,TP347,TP347H,TP321,TP321H,TP310,TP321

Duplex steel:S31803/1.4462/F51, S32205/F60, S32760/1.4501/F55, S32750/1.4410/F53, S32550/255/1.4507/F61/ ,904L/N08904 , S32304/1.4362/, S31500, S31254/254SMo/F44

Nickelalloy:Incoloy800/800H/800HT ,Incoloy825 ,Incoloy925(N08925) ,Inconel600/Inconel601/Inconel602ca ,Inconel625 ,HastelloyC-276/C-2000/C-22 ,HastelloyB/B2/B3 ,G30 ,G35

Monel：400 ,K500

Wide range application of TINSI-STEEL U-tube heat exchangers are widely used in temperature control and swimming pool technology as well as the food processing and cleaning industry.They are used in water heating, for vapour condensation and the heating of liquids and gases.