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U-II type steam radiator

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The U-II type steam radiator is a type of steam radiator that is suitable for both steam radiator systems and hot water heating systems. Its inlet and outlet joints are on the same side, and the inlet and outlet are connected by U-shaped elbows. This meets certain special installation requirements, such as the need for one end of the air heater to be against a wall or other obstacles.

U-II type steam radiator

Product overview

The U-II type steam radiator is a type of steam radiator that is suitable for both steam radiator systems and hot water heating systems. Its inlet and outlet joints are on the same side, and the inlet and outlet are connected by U-shaped elbows. This meets certain special installation requirements, such as the need for one end of the air heater to be against a wall or other obstacles.
The finned tubes are made by winding 10 × 0.2mm corrugated copper strips around a diameter of 16 × 1mm copper tube, forming a spiral shape with three different pitch sizes of 3.2mm - "R", 4.2mm - "M", and 6.5mm - "T". The "R" pitch has a small pitch size but a large heat dissipation area, resulting in a large heat dissipation capacity; The "M" type has a large spacing, resulting in low heat dissipation and air resistance; The "T" spacing is large and suitable for situations where the steam pressure is high and the air temperature rise is low.
The U-II steam radiator has various combinations of different surface tube lengths, tube numbers, row numbers, and fin spacing, with a total of 765 sizes and specifications.
After the winding of the finned tube is completed, the surface is dipped in tin alloy to ensure a tight contact between the fins and the tube, and to achieve a beautiful and corrosion-resistant effect.
The connection between the finned tube and the intake and return main pipe is made by brazing, and other process details are strictly required and carefully considered to ensure good performance, durability, easy installation, and cost-effectiveness of the steam radiator.

Numbering method

The U-II type numbering method is
Model one row number (spacing code) 3.2- number of surface tubes - length of surface tubes (inches).
If two rows are used, with a spacing of 3.2mm, 21 surface tubes, and a tube length of 60 inches, it is UII-2 (R) -21-60.

Technical parameter

Number of surface tubes B
(mm)
Basic parameters/
Row number/A(mm)/
Surface tube length
24 30 36 42 48 54 60 66 72 78 84 90 96 102 108 114 120
700 850 1000 1150 1300 1450 1600 1750 1900 2050 2200 2350 2500 2650 2800 2950 3100
12 510 Heat dissipation area (mm)
Wind affected area (mm)
Ventilation net cross-sectional area (mm)
Inlet and outlet pipe joint (mm)
Inlet and outlet pipe joint (mm)
Net weight (KG)
Net weight (KG)
2
1 or 2
1 or 2
1
2
1
2
9
0.26
0.144
2
2
27
35
11.25
0.325
0.18
2
2
30.5
40.5
13.5
0.39
0.216
2
2
34
36
15.75
0.455
0.252
2
2
37.5
51.5
18
0.52
0.288
2
2
41
57
20.25
0.585
0.324
2
2
44.5
62.5
22.5
0.65
0.36
2
2
48
68
24.75
0.715
0.396
2
2
51.5
73.5
27
0.78
0.432
2
2
55
79
29.25
0.845
0.468
2
2
58.5
84.5
31.5
0.91
0.504
2
2
62
90
33.75
0.975
0.54
2
2
65.5
95.5
36
1.04
0.576
2
2
69
101
38.25
1.105
0.612
2
2
72.5
106.5
40.5
1.17
0.648
2
2
74
112
42.75
1.235
0.684
2
2
77.5
117.5
45
1.3
0.72
2
2
81
123
15 616 Heat dissipation area (mm)
Wind affected area (mm)
Ventilation net cross-sectional area (mm)
Inlet and outlet pipe joint (mm)
Inlet and outlet pipe joint (mm)
Net weight (KG)
Net weight (KG)
2
1 or 2
1 or 2
1
2
1
2
11.25
0.325
0.18
2
2
32
42
14.06
0.406
0.225
2
2
36
48.5
16.88
0.488
0.27
2
2
40
55
19.68
0.569
0.315
2
2
44
61.5
22.5
0.65
0.36
2
2
48
68
25.31
0.731
0.405
2
2
52
74.5
28.13
0.812
0.45
2
2
56
81
30.94
0.894
0.495
2
2
60
87.5
33.75
0.975
0.54
2
2
64
94
36.56
1.056
0.585
2
2
68
100.5
39.38
1.137
0.63
2
2
72
107
42.19
1.219
0.675
2
2
76
113.5
45
1.3
0.72
2
2
80
120
47.81
1.381
0.765
2
2
84
126.5
50.63
1.462
0.81
2
2
88
133
53.44
1.544
0.855
2
2
92
139.5
56.25
1.625
0.9
2
2
96
146
18 722 Heat dissipation area (mm)
Wind affected area (mm)
Ventilation net cross-sectional area (mm)
Inlet and outlet pipe joint (mm)
Inlet and outlet pipe joint (mm)
Net weight (KG)
Net weight (KG)
2
1 or 2
1 or 2
1
2
1
2
13.5
0.39
0.216
2
2
36
48.5
16.88
0.488
0.27
2
2
40.5
56
20.25
0.586
0.324
2
2
45
63.5
23.63
0.684
0.378
2
2
49.5
71
27
0.782
0.432
2
2
54
78.5
30.38
0.88
0.486
2
2
58.5
86
33.75
0.978
0.54
2
2
63
93.5
37.13
1.076
0.594
2
2
67.5
101
40.5
1.174
0.648
2
2
72
108.5
43.88
1.272
0.702
2
2
76.5
116
47.25
1.37
0.756
2
2
81
123.5
50.63
1.468
0.81
2
2
85.5
131
54
1.566
0.864
2
2
90
138.5
57.38
1.664
0.918
2
2
94.5
146
60.75
1.762
0.972
2
2
99
153.5
64.13
1.86
1.026
2
2
103.5
161
67.5
1.958
1.08
2
2
108
168.5
21 828 Heat dissipation area (mm)
Wind affected area (mm)
Ventilation net cross-sectional area (mm)
Inlet and outlet pipe joint (mm)
Inlet and outlet pipe joint (mm)
Net weight (KG)
Net weight (KG)
2
1 or 2
1 or 2
1 or 2
1
2
15.75
0.455
0.252
2
41
55
19.69
0.568
0.315
2
46
63.5
23.63
0.681
0.378
2
51
72
27.56
0.794
0.441
2
56
80.5
31.5
0.907
0.504
2
61
89
35.44
1.02
0.567
2
66
97.5
39.38
1.133
0.63
2
71
106
43.31
1.246
0.693
2
76
114.5
47.35
1.359
0.756
2
81
123
51.29
1.472
0.819
2
86
131.5
55.13
1.585
0.882
2
91
140
59.06
1.698
0.945
2
96
148.5
63
1.811
1.008
2
101
157
66.94
1.924
1.071
2
106
165.5
70.88
2.037
1.134
2
111
174
74.81
2.15
1.197
2
116
182.5
78.75
2.263
1.26
2
121
191
24 934 Heat dissipation area (mm)
Wind affected area (mm)
Ventilation net cross-sectional area (mm)
Inlet and outlet pipe joint (mm)
Inlet and outlet pipe joint (mm)
Net weight (KG)
Net weight (KG)
2
1 or 2
1 or 2
1 or 2
1
2
18
0.52
0.288
2
46
63
22.5
0.65
0.36
2
51.5
72.5
27
0.78
0.432
2
57
82
31.5
0.91
0.504
2
62.5
91.5
36
1.04
0.576
2
68
101
40.5
1.17
0.648
2
73.5
110.5
45
1.3
0.72
2
79
120
49.5
1.43
0.792
2
84.5
129.5
54
1.56
0.864
2
90
139
58.5
1.69
0.936
2
95.5
148.5
63
1.83
1.008
2
101
158
67.5
1.95
1.08
2
106.5
167.5
72
2.08
1.152
2
112
177
76.5
2.21
1.224
2
117.5
186.5
81
2.34
1.296
2
123
196
85.5
2.47
1.368
2
128.5
205.5
90
2.6
1.44
2
134
215

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