Pipeline Pigging · Steel Mandrel Pigs
Brush
Cleaning Pigs

Carbon steel mandrel pigs in six brush configurations for mill scale, wax, rust, and hard deposits, in sizes 2" through 48".

Brush Cleaning Pigs
Steel Mandrel Pigs
Applications & Features
Applications
  • Pre-commissioning cleaning of new pipeline construction to remove mill scale, rust, sand, and weld debris
  • On stream cleaning of wax, paraffin, organic growth, mud, and oxides in operating pipelines
  • Removal of hard scale and encrustations requiring aggressive mechanical scrubbing
  • Internally coated, plastic, or stainless steel pipelines requiring non contaminating brush materials (prostran)
  • Gauging to verify pipe roundness and check for weld penetration or obstruction debris
  • Preparation runs prior to intelligent inspection pigging
Features
  • Carbon steel mandrel body with two easily replaceable polyurethane cups for propulsion and sealing
  • Six brush assembly designs available to match deposit type and pipeline material: spring mounted, circular hub (wire wheel), split ring, leaf spring, and wrap around
  • Brush materials include carbon steel, stainless steel, and prostran for use in coated or plastic pipe
  • Available in sizes 2" through 48"
  • All wearing components (cups and brushes) are field replaceable, restoring the pig to like new condition
  • Optional gauging plate machined to customer specifications
  • Pigs Unlimited is the only full line pig manufacturer that builds replacement brushes in house
In-House Brush Manufacturing

Pigs Unlimited is unique in the industry as the only full line pig manufacturer that builds all replacement brushes in house at their Tomball, TX facility. That means tighter quality control, faster turnaround on replacement parts, and the ability to manufacture custom brush configurations, including carbon steel, stainless steel, and prostran, for virtually any pipeline application.

Available Models
CSBSpring mountedCarbon steel body with two replaceable polyurethane cups and spring mounted circular hub brush assemblies. Ideal for moderate deposits and general on stream cleaning. Optional gauging plate available.
CSB-2Spring mounted variantVariant of the CSB with two replaceable polyurethane cups and spring mounted brush assemblies, offering an alternate brush count configuration for different cleaning intensities. Optional gauging plate available.
CRBWrap aroundCarbon steel body with two replaceable polyurethane cups and spring mounted brush assemblies in a circular hub wrap around configuration for thorough wall contact. Optional gauging plate available.
SRBSplit ringCarbon steel body with two replaceable polyurethane cups and two split ring brush assemblies. Split ring design provides aggressive 360° wall contact, making it well suited for heavier deposits. Optional gauging plate available.
WWBWire wheelCarbon steel body, center rod type, with two replaceable polyurethane cups and wire wheel brush assemblies. Wire wheel configuration delivers concentrated, high intensity scrubbing for hard scale and rust. Optional gauging plate available.
LRBLeaf springCarbon steel body in bolting pattern configuration with two replaceable polyurethane cups and leaf spring mounted brush assemblies. The leaf spring design maintains consistent radial brush pressure against the pipe wall across a range of internal diameters. Optional gauging plate available.
Available Options
  • Brush materials: carbon steel, stainless steel, prostran for internally coated, plastic, or sensitive pipe
  • Two cup, three cup, or four cup pig configurations for increased sealing capability
  • Cup elastomer options: neoprene, viton, EPDM, Buna-N, and other compounds for chemical compatibility
  • Disc substitution or addition for increased sealing or bidirectional operation
  • Polyurethane blades in place of or in addition to wire brushes
  • Gauging plate in aluminum or steel, varying thickness, slotted versions available
  • Transmitter or pinger cavity for pig tracking
  • Magnets for ferrous debris collection or magnetic detection
  • Carbon steel, stainless steel, or aluminum mandrel body
  • Customized lengths and diameters for special pigging applications

Need brush cleaning pigs for pre-commissioning or on stream cleaning? Contact us for pricing and availability.

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