Heating Plant U Bend Pipe , ASTM / ASME A / SA163 825 Seamless Steel Pipe
Brand Name:TOBO
Certification:SGS/BV/ABS/LR/TUV/DNV/BIS/API/PED
Model Number:A/SA163 825
Minimum Order Quantity:1 pcs
Delivery Time:15- 20 work days
Payment Terms:L/C, T/T, Western Union
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Shanghai Shanghai China
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No.208,Lvdi Road,Baihe Town,Qingpu District,Shanghai,China
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Diameter 6" Seamless U-bent Tubes U Fin Tube ASTM/ASME A/SA163 825
U Bend Tube Application
U tube heat exchangers designed for high temperature applications,
especially steam condensing or hot oil systems.
Application: Boiler, heat exchanger, super heater, feedwater heater, condenser. Thïs model is selected when differential
expansion makes a fixed tube sheet exchanger unsuitable and when
conditions preclude a floating head type (HPF) selection.
Stainless Steel Tubes Size for Heat Exchanger
| Inches | Decimal | Millimeters |
| 1/16″ | .0625 | 1.59 mm |
| 1/8″ | .1250 | 3.18 mm |
| 3/16″ | .1875 | 4.76 mm |
| 1/4″ | .2500 | 6.35 mm |
| 5/16″ | .3125 | 7.94 mm |
| 3/8″ | .3750 | 9.53 mm |
| 7/16″ | .4375 | 11.11 mm |
| 1/2″ | .5000 | 12.70 mm |
| 9/16″ | .5625 | 14.29 mm |
| 5/8″ | .6250 | 15.88 mm |
| 11/16″ | .6875 | 17.46 mm |
| 3/4″ | .7500 | 19.05 mm |
| 13/16″ | .8125 | 20.64 mm |
| 7/8″ | .8750 | 22.23 mm |
| 15/16″ | .9375 | 23.81 mm |
| 1″ | 1.00 | 25.40 mm |
| 1 1/4″ | 1.25 | 31.75 mm |
| 1 1/2″ | 1.50 | 38.10 mm |
| 2″ | 2.00 | 50.80 mm |
TEST CERTIFICATE
Mill Test Certificate as per EN 10204 / 3.1
Advanced capabilities for U-bent tubes:
- Reliable bending machines
- Precision bending dies
- Eddy current test before bending
- Bending up to 105’(32m) developed length
- Electric resistance stress relief annealing after bending
- Hydrostatic test after bending
- OD and WT reduction Testing
- Full bending radius and tube legs tolerance check
- Stack-rack boxing
Dimensional tolerances U Bend Tube acc. to TEMA R.C.B.
1) U Bend Pipe Length of straight part -0/+5 mm
Flattening (also called “ovality”) at the bend shall not exceed 10%
of the nominal tube outside diameter.
Wall thickness in bending part acc. to TEMA R.C.B 2.31
2) U Bend Tube Minimum tube wall thickness in the bend part (T
min)T(min) ≥ (SW × (2×R + D))/( 2× (R+D)
where: SW is smallest wall thickness
D Nominal outside diameter
R radius
3) U Bend Tube Radius tolerance
1) for R 100 mm +/- 3 mm
2) for R ≥ 100 mm +/- 5 mm
4). U bend Pipe Straightness tolerance max. 1,5 mm per 1 m
U Bend Tube ends: plain, vertically cut to the tube axis
U Bend Tube OD in mm can be bent upon agreement: 15.8 16.0 17.0
18.0 19.05 20.0 21.3 25.4 26.7 31.8 32.0 38.1mm
U bend Tube Initial Length
Maximum lengths of 27000mm can be supplied on request
U bend Pipe Bending radius
Minimum: 1.5×OD
Maximum: 1500 mm
Stainless Steel ubend :
ASTM A403 WP Gr. 304, 304H, 309, 310, 316, 316L, 317L, 321, 347,
904L, 316TI, 316H, 304L
Carbon Steel ubend
ASTM A 234 WPB , WPBW, WPHY 42, WPHY 46, WPHY 52, WPH 60, WPHY 65
& WPHY 70.
Low Temperature Carbon Steel
ASTM A420 WPL3 / A420WPL6
Alloy Steel ubend
ASTM / ASME A/SA 234 Gr. WP 1, WP 5, WP 9, WP 11, WP 12, WP 22, WP
91
Duplex Steel ubend
ASTM A 815 UNS NO S 31803, S 32205, S 32760, S 32750
Copper Nickel
C70600(90:10), C71500(70:30), C71640.
Packing and Shipping
Package:Standard export carton packing.
Delivery time:stock 7-10 workign days after confirming order,detail delivery date should be decided according to
production season and order quantity.
Heating Plant U Bend Pipe , ASTM / ASME A / SA163 825 Seamless Steel Pipe
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