Carbon steel mandrel pigs in six brush configurations for mill scale, wax, rust, and hard deposits, in sizes 2" through 48".
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 mounted
Carbon 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 variant
Variant 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 around
Carbon 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 ring
Carbon 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 wheel
Carbon 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 spring
Carbon 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.