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U Tube > 2 Pass Triangular > Group 6

D & R Standard Model "LL" Group 6 Two Pass Tube Side, 3/4" O.D. Tubes 15/16" Tri. Pitch

Model No.

Shell O.D.
Inches

No. U Tubes

Square Feet Surface for Nominal Bundle Length

4'0"

5'0"

6'0"

7'0"

8'0"

9'0"

10'0"

11'0"

12'0"

14'0"

16'0"`

18'0"

LL66U2

6 5/8

11

17

21

25

30

34

38

43

47

51

60

68

77

LL86U2

8 5/8

20

29

37

45

53

61

69

76

84

92

108

123

139

LL106U2

10 3/4

36

52

66

80

94

109

123

137

151

166

194

223

251

LL126U2

12 3/4

54

78

99

120

141

163

184

205

226

247

290

332

374

LL146U2

14

69

98

125

152

179

206

233

260

288

315

369

423

477

LL166U2

16

93

128

164

200

236

272

308

344

380

416

488

560

632

LL186U2

18

125

167

215

264

314

363

412

461

510

559

657

755

853

LL206U2

20

157

203

264

326

397

459

521

582

644

705

829

952

1075

LL226U2

22

193

247

323

399

475

551

627

703

779

855

1007

1152

1311

LL246U2

24

234

294

386

478

570

662

754

846

938

1030

1214

1398

1582

 

Model No.

Shell O.D.
Inches

No. U Tubes

4'0"

5'0"

6'0"

7'0"

8'0"

9'0"

10'0"

11'0"

12'0"

14'0"

16'0"`

18'0"

Square Feet Surface for Nominal Bundle Length

D & R Standard Model "LL" Group 6 Two Pass Tube Side, 3/4" O.D. Tubes 15/16" Tri. Pitch

Model No.

Shell O.D.
Inches

No. U Tubes

Square Feet Surface for Nominal Bundle Length

5'6"

6'6"

7'6"

8'6"

9'6"

10'6"

11'6"

13'6"

15'6"

17'6"

LL266U2

26

282

586

696

806

917

1028

1139

1249

1471

1692

1913

LL286U2

28

331

659

781

903

1025

1147

1269

1381

1625

1868

2112

LL306U2

30

386

755

906

1057

1208

1359

1510

1661

1963

2265

2567

LL326U2

32

443

848

1022

1196

1370

1544

1718

1892

2240

2588

2936

LL346U2

34

503

956

1154

1352

1550

1748

1946

2144

2540

2936

3332

LL366U2

36

572

1062

1287

1512

1737

1962

2187

2414

2862

3312

3762

LL386U2

38

643

1168

1420

1672

1924

2176

2428

2680

3184

3688

4192

LL406U2

40

717

1293

1574

1855

2136

2417

2698

2979

3541

4103

4665

LL426U2

42

792

1418

1729

2040

2351

2662

2973

3284

3906

4528

5150

Model No.

Shell O.D.
Inches

No. U Tubes

5'6"

6'6"

7'6"

8'6"

9'6"

10'6"

11'6"

13'6"

15'6"

17'6"

Square Feet Surface for Nominal Bundle Length

 

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