250 Series

2 1/2” Glazed Curtain Wall

MANKO WINDOW SYSTEMS, INC. 800 HAYES DRIVE

MANHATTAN, KANSAS 66502 PHONE: (800) 642-1488 (785) 776-9643

FAX: (800) 576-2656 (785) 776-9644

MANKO WINDOW SYSTEMS, INC. 11000 EAST 51ST AVE. SUITE B

DENVER, COLORADO 80239 PHONE: (888) 642-1488 (303) 375-0642

FAX: (888) 576-2656 (303) 375-0669

250 Series 2 1/2” Glazed Curtain Wall

TABLE OF CONTENTS • 2-1/2” MULLIONS 1 • 4” MULLIONS 2 • 2-1/2” TWO PIECE MULLIONS 3 • ¼” INFILL ADAPTOR 4 • 2-1/2” MULLIONS - ¼” GLAZING 5 • 800 SERIES VENTS 6 • 1100 SERIES VENTS 7 • 90 DEGREE CORNERS 8 • VERTICAL MULLION STIFFNERS 9-12 • EXPANSION MULLION 13 • OPTIONAL FACE CAPS 14 • OPTIONAL HORIZONTAL MULLION 15-17 • SUNSHADE FACE CAP 18 • BLIND SWING SASH 19 • BLIND TAKE-OUT SASH 20 • 45 DEGREE CORNERS 21 • T-ANCHOR PICTORIAL 22 • WINDLOAD CHARTS 23-35

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24 30 36 42 48 54 60 66 72 78 849096

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15 PSF20 PSF25 PSF30 PSF

Windload Chart for #256 (T6 Temper)

24 30 36 42 48 54 60 66 72 78 84126132138144150156162168174180186192198204210216222228

Span Width (Inches)

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15 PSF20 PSF25 PSF30 PSF

Windload Chart for #256/280 (T6 Temper)

Manko Window Systems, Inc.

260

262

256

Deflections for both charts are based on L/175 for span heights below 13'6" and L/240+.25 for higher spans.

Revised 7-22-09

260

262

256

280

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15 PSF20 PSF25 PSF30 PSF

Windload Chart for #254 ( T6 Temper)

24 30 36 42 48 54 60 66 72 78 84144150156162168174180186192198204210216222228234240246252258264

Span Width (Inches)

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15 PSF20 PSF25 PSF30 PSF

Windload Chart for #254/281 (T6 Temper)

Manko Window Systems, Inc.

260

262

254

Deflections for both charts are based on L/175 for span heights below 13'6" and L/240+.25 for higher spans.

Revised 7-23-09

260

262

254

281

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24 30 36 42 48 54 60 66 72 78 84156162168174180186192198204210216222228234240246252258264270

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15 PSF20 PSF25 PSF30 PSF

Windload Chart for #254 (T6 temper)/2 X 4 X.125 Steel Tube

24 30 36 42 48 54 60 66 72 78 84180186192198204210216222228234240246252258264270276282288

Span Width (Inches)

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15 PSF20 PSF25 PSF30 PSF

Windload Chart for #254 (T6 Temper)/ 2 X 4 X .25 Steel Tube

Manko Window Systems, Inc.

260

262

254

260

262

254

Deflections for both charts are based on L/175 for span heights below 13'6" and L/240+.25 for higher spans.

Revised 7-24-09

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24 30 36 42 48 54 60 66 72 78 84144150156162168174180186192198204210216222228234240246252258

Span Width (Inches)

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t(I

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s)

15 PSF20 PSF25 PSF30 PSF

Windload Chart for #257 (T6 Temper)

24 30 36 42 48 54 60 66 72 78 84180186192198204210216222228234240246252258264270276282288

Span Width (Inches)

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15 PSF20 PSF25 PSF30 PSF

Windload Chart for #257/282 ( T6 Temper)

Manko Window Systems, Inc.

260

262

257

Deflections for both charts are based on L/175 for span heights below 13'6" and L/240+.25 for higher spans.

Revised 7-24-09

260

262

257

282

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36 42 48 54 60 66 72 78 84 90 96180186192198204210216222228234240246252258264270276282288

Span Width (Inches)

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15 PSF20 PSF25 PSF30 PSF

Windload Chart for #257 ( T6 Temper)/ 2 X 5 X .125 Steel Tube

36 42 48 54 60 66 72 78 84 90 96180186192198204210216222228234240246252258264270276282288

Span Width (Inches)

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15 PSF20 PSF25 PSF30 PSF

Windload Chart for #257 (T6 Termper)/ 2 X 5 X .25 Steel Tube

Manko Window Systems, Inc.

261

262

257

261

262

257

Deflections for both charts are based on L/175 for span heights below 13'6" and L/240+.25 for higher spans.

Revised 7-24-09

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24 30 36 42 48 54 60 66 72 78 84174180186192198204210216222228234240246252258264270276282

Span Width (Inches)

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15 PSF20 PSF25 PSF30 PSF

Windload Chart for #275 (T6 Temper)

24 30 36 42 48 54 60 66 72 78 84192198204210216222228234240246252258264270276282288

Span Width (Inches)

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15 PSF20 PSF25 PSF30 PSF

Windload Chart for #275/282 (T6 Temper)

Manko Window Systems, Inc.

260

262

275

260

262

275

282

Deflections for both charts are based on L/175 for span heights below 13'6" and L/240+.25 for higher spans.

Revised 7-24-09

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24 30 36 42 48 54 60 66 72 78 84108

120

132

144

156

168

180

192

204

216

228

240

252

264

Span Width (Inches)

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15 PSF20 PSF25 PSF30 PSF

Windload Chart for #2575/2576 (T6 Temper)

48 54 60 66 72 78 84 90 96198

204

210

216

222

228

234

240

246

252

258

264

270

276

282

288

Span Width (Inches)

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20 PSF25 PSF30 PSF

Windload Chart for #2575/2576 (T6 Temper)/ 2 X 8 X .125 Steel Tube

Manko Window Systems, Inc.

260

262

2575

2576

260

262

2575

2576

Deflections for both charts are based on L/175 for span heights below 13'6" and L/240+.25 for higher spans.

Revised 7-24-09

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48 54 60 66 72 78 84 90 96264

270

276

282

288

294

300

306

312

318

324

330

336

342

348

Span Width (Inches)

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20 PSF25 PSF30 PSF

Windload Chart for #2575/2576 (T6 Temper)/ 2 X 8 X .25 Steel Tube

Manko Window Systems, Inc.

260

262

2575

2576

Deflections for both charts are based on L/175 for span heights below 13'6" and L/240+.25 for higher spans.

Revised 7-24-09

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24 30 36 42 48 54 60 66 72 78 8478849096

102108114120126132138144150156162168174

Span Width (Inches)

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15 PSF20 PSF25 PSF30 PSF

Windload Chart for #272 (T6 Temper)

Manko Window Systems, Inc.

272

24 30 36 42 48 54 60 66 72 78 8478849096

102108114120126132138144150156162168174

Span Width (Inches)

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15 PSF20 PSF25 PSF30 PSF

Windload Chart for #272 (T6 Temper)

272

280

Deflections for both charts are based on L/175 for span heights below 13'6" and L/240+.25 for higher spans.

Revised 7-24-09

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24 30 36 42 48 54 60 66 72 78 84849096

102108114120126132138144150156162168174180186192

Span Width (Inches)

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20 PSF25 PSF30 PSF

Windload Chart for #2573 (T6 Temper)

24 30 36 42 48 54 60 66 72 78 84120126132138144150156162168174180186192198204210216222

Span Width (Inches)

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15 PSF20 PSF25 PSF30 PSF

Windload Chart for #2573/281 (T6 Temper)

Manko Window Systems, Inc.

2573

2573

281

Deflections for both charts are based on L/175 for span heights below 13'6" and L/240+.25 for higher spans.

Revised 7-24-09

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24 30 36 42 48 54 60 66 72180186192198204210216222228234240246252258264270276282288

Span Width (Inches)

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t(I

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15 PSF20 PSF25 PSF30 PSF

Windload Chart for #273 (T6 Temper)/ .125" Steel Tube

Manko Window Systems, Inc.

Deflections are based on L/175 for span heights below 13'6" and L/240+.25 for higher spans.

Revised 7-24-09

2573

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24 30 36 42 48 54 60 66 72 78 84120126132138144150156162168174180186192198204210216

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15 PSF20 PSF25 PSF30 PSF

Windload Chart for #2574 ( T6 Temper)

24 30 36 42 48 54 60 66 72 78 84156162168174180186192198204210216222228234240246252258264270276282

Span Width (Inches)

Spa

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eigh

t(I

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15 PSF20 PSF25 PSF30 PSF

Windload Chart for #2574/281 ( T6 Temper)

Manko Window Systems, Inc.

Deflections for both charts are based on L/175 for span heights below 13'6" and L/240+.25 for higher spans.

Revised 7-24-09

2574

2574

282

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24 30 36 42 48 54 60 66 72186192198204210216222228234240246252258264270276282288

Span Width (Inches)

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15 PSF20 PSF25 PSF30 PSF

Windload Chart for #2574 ( T6 Temper) / .125" Steel Tube

Manko Window Systems, Inc.

Deflections based on L/175 for span heights below 13'6" and L/240+.25 for higher spans.

Revised 7-24-09

2574

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