Ring and Circular-Flange Brushes
Full-circle brush sections mount around a pig body or flange to provide circumferential contact. Confirm the brush OD, center opening, bolt-circle pattern, plate thickness and rotation or travel direction.
Machine & Equipment Applications
Custom Pipeline Pig Brushes
Custom and replacement brush components for steel mandrel, polyurethane and other approved pipeline cleaning pig designs.
Ring, wrap, block, segment and pencil-brush constructions can be developed from a detailed drawing, existing sample or verified pig specification. Bulk custom production is available after the design and materials are approved.
Send Your Brush DrawingBrush Component Scope
What Is a Pipeline Pig Brush?
A pipeline pig brush is a replaceable component mounted on a cleaning pig to contact the internal pipe wall. Depending on its construction and wire profile, it can help loosen black powder, wax or paraffin, rust, scale, sand, sludge and debris from corrosion pits.
This page covers the brush component only. Brushcustom does not represent the brush as a complete cleaning pig, an inline inspection tool or a pipeline-cleaning service.
Brush Constructions
Pipeline Pig Brush Types We Can Manufacture
Wrap Brushes
Wrap brushes fit around a polyurethane or steel pig body and are commonly secured between sealing elements or with defined fasteners. The wrap length, overlap, fixing points and installed diameter must match the pig construction.
Block and Paddle Brushes
Rectangular brush blocks can mount on fixed or spring-loaded arms. Their backing plate, mounting holes, spring arrangement and trim determine how the brush follows the pipe wall and accommodates changes in internal diameter.
Segment and Arc Brushes
Multiple curved brush sections can be arranged around a larger pig body. Segment angle, spacing, mounting and installed OD must be confirmed as a complete set rather than quoted from one loose section alone.
Pencil and Pit-Cleaning Brushes
Pencil brush clusters allow individual wire bundles to contact irregular surfaces and reach deposits in corrosion pits. The wire material, cluster construction, tuft retention, density and trim require application-specific review.
Replacement Supply Scope
Individual Components or Complete Brush Sets
The replacement unit depends on the pig design. A ring or circular-flange brush is commonly supplied as a complete ring assembly. Wrap brushes may be supplied as individual wrap sections, while block, segment and pencil-brush layouts may use several matched components around one pig.
We can review either an individual replacement component or the complete brush set required for one pig. Confirm the position and quantity of each brush in the assembly. A complete brush set means the matched brush components only, not the complete pipeline pig.
Material Selection
Wire and Filament Options
- Carbon-steel flat wire for approved aggressive cleaning of wax, rust, scale and other tenacious deposits
- Carbon-steel or stainless-steel round/crimped wire where a more flexible contact is required
- Stainless-steel wire where the specified environment requires greater corrosion resistance
- High-tensile pencil-wire clusters for corrosion-pit contact, black powder and hard deposits
- Approved nylon or engineered synthetic filament where metal-wire contact is unsuitable, including selected internally coated pipelines
- High-density polyethylene (HDPE) filament for approved non-metallic contact where low moisture absorption and chemical resistance are required
Flat wire, round or crimped wire, and pencil clusters are not interchangeable. Selection follows the deposit, pipe material, coating, medium, temperature, geometry, speed, and required contact. For internally coated pipes, confirm the coating specification, cleaning restrictions, and an approved test before describing any brush as coating-safe.
Core and Mounting
Core, Backing and Mounting Construction
Pipeline pig brushes may use an HDPE or engineered-plastic core, a steel or stainless-steel backing plate, or a combined core-and-plate assembly. Depending on the brush type, mounting may use a center hole, bolt-circle pattern, clamps, fasteners, fixed arms or spring-loaded arms.
HDPE is one possible core material, not a universal choice for every pipeline. Its grade, temperature range, chemical compatibility, dimensional stability and wire-retention method must be approved for the actual operating environment.
Pipeline Cleaning Applications
Cleaning Duties We Can Review
- Black powder and fine ferrous deposits in gas pipelines
- Wax and paraffin deposits in oil and product pipelines
- Rust, mill scale and hard internal deposits
- Sand, sludge and accumulated debris
- Deposits within corrosion pits
- Pre-ILI cleaning brush components prepared to an approved pig design
Cleaning results depend on the complete pig configuration and operating program. A brush component alone cannot guarantee full deposit removal, coating protection or unrestricted pig passage.
Drawing-Based Replacement
Custom Replacement Information
Start with a drawing or photos of the existing brush. Make and model provide context, but actual brush dimensions and mounting control replacement fit.
- 01
Drawing or photos of the existing brush, including its mounting side; part number if available
- 02
Main dimensions and mounting details: ring brush OD, center-hole diameter and thickness, or block backing dimensions and mounting-hole positions
- 03
Wire or filament material
- 04
Wire or filament diameter (width and thickness for flat wire), and exposed trim length
- 05
Required quantity of each brush component
OEM & Replacement Production
Send Your SpecificationNeed Custom Pipeline Pig Brushes?
Send a drawing or photos of your existing brush with the available dimensions, filament details and quantity. We support bulk custom production and repeat replacement orders.