BETE STXP Largest Free Passage Full Cone Spiral Nozzles

BETE Abrasion and Clog-Resistant Pigtail Spray Nozzles

The BETE STXP is one of the original spiral nozzles. It has a high discharge velocity and high energy efficiency. BETE STXP Spray Nozzles are clog-resistant, with no internal parts.

The spray pattern is formed by impacting the fluid onto a protruding helix after exit form the spray orifice. The liquid then shears off the helix, breaking into droplets and forming the spray pattern. The spirals actually produce concentric rings of multiple hollow cone spray patterns with a less uniform liquid distribution between the cones to produce an approximate full cone pattern. By varying the geometry of the helix, however, a hollow cone pattern can be achieved. Spiral nozzles will, for any given flow rate and pressure, produce a full cone spray with the smallest droplet size for any direct pressure nozzles.


BETE STXP Full Cone Spiral Spray Nozzle Design Features

  • Abrasion resistant
  • Cobalt Alloy 6 or RBSC ceramic parts in high-wear areas
  • High energy efficiency
  • Largest free passage in spiral design
  • Extra-heavy, rugged construction
  • Two and three-piece construction
  • Flanged and special connections available as required

BETE STXP Full Cone Spray Characteristics 

Available Spray Angles Flow Rate Range
90 - 120° 2.12 to 3710 gpm
Available Connection Types Materials
  • Pipe: 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
  • Fine atomization
  • Spray pattern: Full Cone (Hollow Cone available by special order)
  • Standard Materials:
    •  Base and Caps – 316 Stainless Steel; Tip – Cobalt Alloy 6 or RBSC Ceramic. (RBSC not available on nozzle numbers ST6 thru ST32)

90° Spray Angle:


120° Spray Angle:


How Spray Pattern for the BETE STXP Spiral Nozzle is Achieved

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 STXP - Datasheet

BETE STXP - Datasheet

BETE STXP Datasheet - Metric

BETE STXP Datasheet - Metric


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