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 SizeABCDWeight (oz.)
1/81 1/85/81/21/21
1/41 5/1613/165/85/82
3/81 11/1815/163/43/43 1/4
1/21 15/181 1/47/814 3/4
3/42 1/21 9/161 1/41 1/416
131 13/161 1/21 1/223

629/631


629 Dimensions
Pipe SizeABCDEWeight (oz.)
1/89/109/105/81/21/21
1/411/1011/1013/165/85/62
3/83/43/415/163/43/43 1/4

Capacities: Gallons Per Hour
Pipe SizeOrificeLeadOperating Pressure: Lbs. Per Square Inch
5102030406080100
1/8″ or 1/4″69692.73.33.84.75.46.0
61614.25.15.97.28.39.2
61532.73.75.36.57.59.210.511.8
53534.05.78.210.011.514.116.318.2
49495.67.911.113.615.719.322.224.8
3/323/329.613.519.223.427.033.038.442.9
1/83/3212.217.324.429.934.642.449.054.9
1/87/6414.620.629.135.741.050.458.465.1
1/81/815.922.531.939.245.155.263.771.5
1/4″11/641/821.730.643.253.061.175.086.498.0
3/165/3230.543.261.174.986.4107122136
7/323/1645.163.890.5110128156180202
13/6413/6454.677.8108134155191217246
7/327/3259.884.5120146169207240267
9/327/3288.4125177217250306354395
17/641/4102141199244282345399446
17/6417/64122173245300346424489547
9/3217/64135191270331382468540604
19/649/32143203287352406497574642
11/32168237335411474581670750
3/8″3/163/163549698598120138155
7/327/325071101123142175202225
1/41/471101142175202246284319
9/329/3298138196240276339392433
6/169/32124176249305352431498557
21/6421/64170240339416480588679759
11/3221/64180255361442510625721806
3/811/32222314444544628769888993
13/3211/3225436050962472088210181138
7/1611/3226637853565575692610691195
15/3211/32300425610736850104112021344
1/2″3/85/16145206290356411495580651
3/83/8182258365448516634730816
13/323/8207293413507586718826926
7/163/82263214535556417879051015
15/323/82453464966006918489751094
1/23/826637553065175092010621185
3/4″7/167/162353324715766658159411048
9/167/16321455644790910112012851450
9/161/2350495700858989121513951595
5/81/240757683010181183144016601860
1″9/169/163725267449141051129014901665
5/89/1642259784511151193147016901890
5/85/8510720101812501440176020352280

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