629/631 Swirl Chamber Nozzle

The absence of internal vanes makes the 629 and 631 Nozzles practically clog free. Any foreign particles which can pass through the large tangential feed or “lead” hole will easily exit out the orifice. The Swirl Chamber design, which is conical at both ends, produces a uniform hollow cone distribution. Atomization becomes finer at higher pressures and wider spray angles. Typical uses are air washers, aerators, cooling towers, foam dissolving, smoke and dust removal, gas cooling, dewaxing, degreasing and general Industrial processing and Agricultural applications.

Spray Angles: Standard: 80° at 40 PSI. Nozzles with orifices up through 1/8″ available in 120°.

Material: Brass and 303 Stainless Steel are standard. Also available in Hard Rubber or any other machinable material.

Pipe Connection: 629 (Male) 1/8″, 1/4″, 3/8″ NPT. 631 (Female) 1/8″, 1/4″, 3/8″, 1/2″, 3/4″, 1″ NPT.

631 Dimensions
Pipe Size A B C D Weight (oz.)
1/8 1 1/8 5/8 1/2 1/2 1
1/4 1 5/16 13/16 5/8 5/8 2
3/8 1 11/18 15/16 3/4 3/4 3 1/4
1/2 1 15/18 1 1/4 7/8 1 4 3/4
3/4 2 1/2 1 9/16 1 1/4 1 1/4 16
1 3 1 13/16 1 1/2 1 1/2 23

629/631


629 Dimensions
Pipe Size A B C D E Weight (oz.)
1/8 9/10 9/10 5/8 1/2 1/2 1
1/4 11/10 11/10 13/16 5/8 5/6 2
3/8 3/4 3/4 15/16 3/4 3/4 3 1/4

Capacities: Gallons Per Hour
Pipe Size Orifice Lead Operating Pressure: Lbs. Per Square Inch
5 10 20 30 40 60 80 100
1/8″ or 1/4″ 69 69 2.7 3.3 3.8 4.7 5.4 6.0
61 61 4.2 5.1 5.9 7.2 8.3 9.2
61 53 2.7 3.7 5.3 6.5 7.5 9.2 10.5 11.8
53 53 4.0 5.7 8.2 10.0 11.5 14.1 16.3 18.2
49 49 5.6 7.9 11.1 13.6 15.7 19.3 22.2 24.8
3/32 3/32 9.6 13.5 19.2 23.4 27.0 33.0 38.4 42.9
1/8 3/32 12.2 17.3 24.4 29.9 34.6 42.4 49.0 54.9
1/8 7/64 14.6 20.6 29.1 35.7 41.0 50.4 58.4 65.1
1/8 1/8 15.9 22.5 31.9 39.2 45.1 55.2 63.7 71.5
1/4″ 11/64 1/8 21.7 30.6 43.2 53.0 61.1 75.0 86.4 98.0
3/16 5/32 30.5 43.2 61.1 74.9 86.4 107 122 136
7/32 3/16 45.1 63.8 90.5 110 128 156 180 202
13/64 13/64 54.6 77.8 108 134 155 191 217 246
7/32 7/32 59.8 84.5 120 146 169 207 240 267
9/32 7/32 88.4 125 177 217 250 306 354 395
17/64 1/4 102 141 199 244 282 345 399 446
17/64 17/64 122 173 245 300 346 424 489 547
9/32 17/64 135 191 270 331 382 468 540 604
19/64 9/32 143 203 287 352 406 497 574 642
11/32 168237335411474581670750
3/8″ 3/16 3/16 35 49 69 85 98 120 138 155
7/32 7/32 50 71 101 123 142 175 202 225
1/4 1/4 71 101 142 175 202 246 284 319
9/32 9/32 98 138 196 240 276 339 392 433
6/16 9/32 124 176 249 305 352 431 498 557
21/64 21/64 170 240 339 416 480 588 679 759
11/32 21/64 180 255 361 442 510 625 721 806
3/8 11/32 222 314 444 544 628 769 888 993
13/32 11/32 254 360 509 624 720 882 1018 1138
7/16 11/32 266 378 535 655 756 926 1069 1195
15/32 11/32 300 425 610 736 850 1041 1202 1344
1/2″ 3/8 5/16 145 206 290 356 411 495 580 651
3/8 3/8 182 258 365 448 516 634 730 816
13/32 3/8 207 293 413 507 586 718 826 926
7/16 3/8 226 321 453 555 641 787 905 1015
15/32 3/8 245 346 496 600 691 848 975 1094
1/2 3/8 266 375 530 651 750 920 1062 1185
3/4″ 7/16 7/16 235 332 471 576 665 815 941 1048
9/16 7/16 321 455 644 790 910 1120 1285 1450
9/16 1/2 350 495 700 858 989 1215 1395 1595
5/8 1/2 407 576 830 1018 1183 1440 1660 1860
1″ 9/16 9/16 372 526 744 914 1051 1290 1490 1665
5/8 9/16 422 597 845 1115 1193 1470 1690 1890
5/8 5/8 510 720 1018 1250 1440 1760 2035 2280