BETE ST Abrasion Resistant Spiral Nozzles

BETE Clog-Resistant Pigtail Nozzles Designed to Endure Limestone Slurry

BETE ST spiral design remains one of the major advances in nozzle technology. The liquid is atomized into small droplets by a continuously descending spiral and, therefore, enters and exits with no internal restrictions through relatively large passages. The result is a higher discharge velocity so lower pumping pressures can be used to produce the required atomization.

Design Features of BETE ST Spiral Nozzles Design Features

  • Designed for use with abrasive materials such as limestone slurry
  • Extensive history as a wet FGD (flue gas desulphurization) absorber nozzle
  • Available in Cobalt Alloy 6 or industrial ceramic (reaction bonded silicon carbide)
  • Inherently clog resistant with no internal parts
  • The spiral design produces a spray with more developed surface area than other nozzle styles for a given flow and pressure
  • Designed by BETE, the inventor of the spiral nozzle
  • Cobalt Alloy 6 or RBSC ceramic parts in high-wear areas
  • High energy efficiency
  • No internal parts
  • Clog-resistant
  • Male and female connections
  • Flanged and special connections available as required

BETE ST Spiral Nozzles Spray Characteristics

  • Fine atomization
  • Spray pattern: Full Cone (Hollow Cone available by special order)
Available Spray Angles Flow Rate Range
90 - 120° 0.494 to 3710 gpm
Available Connection Types Materials
  • Pipe: 1/4, 3/8, 3/4, 1, 1 1/2, 2, 2 1/2, 3, 4
  • Connection Methods: Thread (NPT, BSP, NPSM, BSPP, Male, Female)
316 / Cobalt Alloy 6, 316 / RBSC

BETE ST Spray Angles


BETE ST Drawings


How Spray Pattern is Achieved on BETE ST Spiral Nozzles

  • The spray pattern of the spiral nozzle is formed by the fluid shearing along with the turns of the spiral, which produce multiple concentric cones. These cones form 2 to 3 bands of relatively coarse droplets surrounded by wider bands of relatively fine droplets.


BETE ST Datasheet - Metric

BETE ST Datasheet - Metric

BETE ST - Datasheet

BETE ST - Datasheet


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