Feed Water Heater Stainless Steel U Tube Welding Austenitic 100% ET / HT

U Bend Tube For Feed Water Heater Welding Austenitic Stainless Steel U Tube 100% ET / HT

U Bending Tube

As the both ends fixed on the same tube sheet, the shell and the tube are separated so the U-type heat exchange can not thermal expanse, and the tube bundle can free stretch out and draw back, and cannot produce temperature stress due to the fluid temperature difference. The U-shaped bend is adopting hydraulic drive, bend, PLC control and pipe clamp to complete automatically. The synchronization of the cantilever and elbow movement , effectively prevents pipe sag in the bending process and adjusts speed in the process of operation. Using encoder positioning can ensure the Angle is precise, and can be set freely. In the process of running, it can not only display the movement, but also can display an error message, to help correct the operation and debug troubles, in order to ensure the safety of the operator and device and put an end to the hidden trouble of the production.

Standards: A789/ SA789 

Materials: S32205, S31803, S32750, S32760, S31254, S32304 , S31500,S32550,S31200,S32900...

One Of Reference Drawing :

Testing Items:

1. Appearance Inspection;

2. Dimensional Inspection;

3. Chemical Composition Testing;

4. Mechanical Properties Testing;

5. PWHT (Solution Annealing) of U-Bend+300mm of straight length after Bending at about 680 C Holding time 5 to 7 Seconds.

6. 100% Hydrostatic test after Bending;

7. According to client’s requirement...

Application: Used in Boiler Heat Ex-changers, Fluid, Gas and Oil Transport, Pressure and Heat Transmission, Construction and Ornament, Elaborate designs available as per customers' requirements.Our U bends are suitable to return the flow of coolants/fluids at 180 degree in a much smaller space. The straight tubes are strictly implements the standard specifications and the customers' drawings requirements.