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Venturi Scrubbing Nozzles

Removal of particulate and contaminants utilizing narrowed sections of piping/ducting to achieve high velocities and efficient mixing of gases and scrubbing fluids

Questions? Ask an Engineer

A Venturi scrubber is a wet-scrubbing process that uses direct contact between the gas to be scrubbed and the liquid agent. It derives its name from and utilizes the Venturi effect, in which a fluid increases its velocity as the area through which it is flowing decreases. In Venturi scrubbing, the gas to be scrubbed flows through a duct that narrows in cross-section, therefore increasing the velocity of the gas. Water or other scrubbing fluids are usually sprayed axially into the narrowest section of the duct, known as the throat, with the spray sized to fit the cross section of the duct. The shear forces applied to the droplets caused by the high velocity, turbulent air atomizes the water quickly and provides effective mixing allowing for better gas to liquid contact. This condition causes highly efficient particle collection and can be used for certain gas scrubbing applications. The high velocity axial spray can also be used to draw the gas stream through this scrubbing section, eliminating the need to additional gas moving fans or blowers. Downstream of the narrow section, the duct expands back to its original size and the liquid with the contaminants are removed from the gas stream and collected/filtered.
 

Selecting a Venturi Scrubber Nozzle:

Important factors to consider:

  • Scrubber size, velocity, pressure, temperature, and fluid composition
  • Nozzle mounting location and orientation
  • Required coverage
  • Required materials of construction for corrosive environments
  • Spray media density and viscosity
  • Required scrubbing fluid flow rate
  • Available pressure drop (∆P) across the nozzle
    • ∆P = supply pressure at nozzle inlet - process pressure outside nozzle
  • Our experienced engineers can help determine which nozzle will perform as required with your design details

Common Venturi Scrubber Nozzle Uses and Industries:

NCJ

  • Narrow angle, hollow cone injector nozzle
  • High emitting velocity
  • Coarse spray
Nozzle Type(s):
Whirl
  • Narrow angle, hollow cone nozzles produce the high velocity sprays ideal for coverage and mixing of throat sections of venturi scrubbers
Spray Pattern(s):
Hollow Cone
Flow Range:
5.11 to 1410 gpm
Typical Pressure Range:
30 to 150 psi
Angle Range:
15 - 30°
Common Materials:
Polypropylene, PTFE, UHMW PE, 316

Hollow Cone

Select a nozzle number below for performance graph, drawings, and to request a quote.
Nozzle Number Connection Sizes Spray Angles gpm @ psi     (density: 1 SG)
10 psi 20 psi 40 psi 60 psi 80 psi 100 psi
NCJ 06 3/4″ 15°, 20°, 30° 7.08 9.81 13.6 16.4 18.8 20.9
NCJ 12 1″ 15°, 20°, 30° 14.2 19.7 27.2 33.0 37.7 41.9
NCJ 18 1 1/4″ 15°, 20°, 30° 21.3 29.5 40.8 49.4 56.5 62.8
NCJ 26 1 1/2″ 15°, 20°, 30° 30.7 42.5 58.9 71.2 81.6 90.6
NCJ 48 2″ 15°, 20°, 30° 56.7 78.5 109 132 151 167
NCJ 72 2 1/2″ 15°, 20°, 30° 85.0 118 163 197 226 251
NCJ 105 3″ 15°, 20°, 30° 124 172 238 288 330 367
NCJ 190 4″ 15°, 20°, 30° 225 311 431 521 597 663

These values are filtered based on search criteria or application and do not represent the full range of nozzles for this series. Click here to see all available series offerings.

NCK

  • Narrow angle, full cone injector nozzle
  • High emitting velocity
  • Coarse spray
Nozzle Type(s):
Whirl
  • Narrow angle, full cone nozzles produce the high velocity sprays ideal for coverage and mixing of throat sections of venturi scrubbers
Spray Pattern(s):
Full Cone
Flow Range:
5.11 to 1410 gpm
Typical Pressure Range:
30 to 150 psi
Angle Range:
15 - 30°
Common Materials:
Polypropylene, PTFE, UHMW PE, 316

Full Cone

Select a nozzle number below for performance graph, drawings, and to request a quote.
Nozzle Number Connection Sizes Spray Angles gpm @ psi     (density: 1 SG)
10 psi 20 psi 40 psi 60 psi 80 psi 100 psi
NCK 06 3/4″ 15°, 20°, 30° 7.08 9.81 13.6 16.4 18.8 20.9
NCK 12 1″ 15°, 20°, 30° 14.2 19.7 27.2 33.0 37.7 41.9
NCK 18 1 1/4″ 15°, 20°, 30° 21.3 29.5 40.8 49.4 56.5 62.8
NCK 26 1 1/2″ 15°, 20°, 30° 30.7 42.5 58.9 71.2 81.6 90.6
NCK 48 2″ 15°, 20°, 30° 56.7 78.5 109 132 151 167
NCK 72 2 1/2″ 15°, 20°, 30° 85.0 118 163 197 226 251
NCK 105 3″ 15°, 20°, 30° 124 172 238 288 330 367
NCK 190 4″ 15°, 20°, 30° 225 311 431 521 597 663

These values are filtered based on search criteria or application and do not represent the full range of nozzles for this series. Click here to see all available series offerings.

MaxiPass

  • BETE's unique, clog resistant S-vane design gives the MaxiPass the largest free passage available for a given flow rate, making it resistant to clogging, efficient, and reliable
  • Easily handles liquids with a high solids concentration
  • High reliability spray performance under the most difficult conditions
Nozzle Type(s):
Whirl
  • Narrow angle, full cone nozzles produce the high velocity sprays ideal for coverage and mixing of throat sections of venturi scrubbers
Spray Pattern(s):
Full Cone
Flow Range:
6.15 to 944 gpm
Typical Pressure Range:
30 to 150 psi
Angle Range:
30°
Common Materials:
Polypropylene, PTFE, UHMW PE, 316, Cobalt Alloy 6

Full Cone

Select a nozzle number below for performance graph, drawings, and to request a quote.
Nozzle Number Connection Sizes Spray Angles gpm @ psi     (density: 1 SG)
3 psi 5 psi 10 psi 20 psi 50 psi 80 psi
MP 375 3/4″, 1″ 30° 6.15 7.82 10.8 15.0 23.1 28.8
MP 406 1″ 30° 7.37 9.37 13.0 18.0 27.7 34.5
MP 437 1″, 1 1/4″ 30° 8.61 11.0 15.2 21.0 32.3 40.3
MP 500 1 1/4″ 30° 11.1 14.1 19.5 27.0 41.5 51.8
MP 531 1 1/4″ 30° 12.3 15.6 21.7 30.0 46.2 57.6
MP 562 1 1/4″, 1 1/2″ 30° 13.5 17.2 23.8 33.0 50.7 63.3
MP 593 1 1/2″ 30° 15.4 19.5 27.1 37.5 57.7 71.9
MP 625 1 1/2″ 30° 16.4 20.8 28.9 40.0 61.5 76.7
MP 656 1 1/2″ 30° 19.9 25.4 35.1 48.6 74.8 93.3
MP 687 1 1/2″ 30° 20.9 26.6 36.9 51.1 78.6 98.0
MP 750 2″ 30° 25.5 32.4 44.9 62.1 95.6 119
MP 812 2″ 30° 27.8 35.4 49.0 67.9 104 130
MP 875 2″ 30° 34.4 43.7 60.5 83.8 129 161
MP 937 2″ 30° 38.5 49.0 67.9 94.0 145 180
MP 1000 2″, 2 1/2″ 30° 45.1 57.3 79.4 110 169 211
MP 1125 2″, 2 1/2″ 30° 55.3 70.3 97.4 135 208 259
MP 1250 2 1/2″ 30° 66.4 84.4 117 162 249 311
MP 1375 2 1/2″ 30° 79.6 101 140 194 299 373
MP 1500 2 1/2″, 3″ 30° 97.5 124 172 238 366 456
MP 1625 3″ 30° 115 146 202 280 431 537
MP 1750 3″, 4″ 30° 131 167 231 320 492 614

These values are filtered based on search criteria or application and do not represent the full range of nozzles for this series. Click here to see all available series offerings.

NF

  • Durable one-piece construction
  • High impact
  • Axial spray design with no internal components provides flexible and clog resistant design for almost any application
Nozzle Type(s):
Fan
  • Flat fan nozzles can provide effective distribution and mixing if spraying tangentially into the throat section of venturi scrubbers
Spray Pattern(s):
Fan
Flow Range:
7.07 to 796 gpm
Typical Pressure Range:
30 to 150 psi
Angle Range:
50 - 90°
Common Materials:
Polypropylene, PTFE, 316

Fan

Select a nozzle number below for performance graph, drawings, and to request a quote.
Nozzle Number Connection Sizes Spray Angles gpm @ psi     (density: 1 SG)
5 psi 20 psi 40 psi 100 psi 200 psi 400 psi
NF 200 1/2″ 50°, 65°, 80°, 90° 7.07 14.1 20.0 31.6 44.7 63.2
NF 300 3/4″ 50°, 65°, 80°, 90° 10.6 21.2 30.0 47.4 67.0 94.8
NF 400 3/4″, 1″ 50°, 65°, 80°, 90° 14.1 28.3 40.0 63.2 89.4 126
NF 750 1″ 50°, 65°, 80°, 90° 26.6 53.2 75.3 119 168 238
NF 800 1 1/4″ 50°, 65°, 80°, 90° 28.2 56.3 79.7 126 178 252
NF 1150 1 1/4″ 50°, 65°, 80°, 90° 40.7 81.4 115 182 257 364
NF 1500 1 1/2″ 50°, 65°, 80°, 90° 53.0 106 150 237 335 474
NF 2250 2″ 50°, 65°, 80°, 90° 79.6 159 225 356 503 712

These values are filtered based on search criteria or application and do not represent the full range of nozzles for this series. Click here to see all available series offerings.