Factory-applied epoxy protection for pipe and coating orders
We supply FBE-coated carbon steel pipe in DN15–DN250 catalog sizes, with 300 or 400 μm coating selections and 5.8, 6 or 12 m lengths. The steel grade, wall and end preparation remain part of the pipe order. Single-layer FBE and a separately specified dual-layer system are quoted as different coating builds.
| Steel item | Pipe specification, grade, actual OD, wall and length on the material schedule |
|---|---|
| External coating | Fusion-bonded epoxy powder applied to prepared steel |
| Single-layer route | An epoxy layer provides the specified corrosion barrier |
| Dual-epoxy route | A separately defined outer epoxy layer adds the required mechanical protection |
| Weld ends | Cutback length and edge termination matched to the field-joint detail |
| Internal surface | Bare or a separately specified lining; the bore finish is specified on its own |
The single-layer catalog covers DN15–DN250 nominal sizes. Select the pipe OD and wall for the required material standard, then identify the coating thickness and delivered length.
| Single-layer catalog item | Published selection | Equivalent / ordering basis |
|---|---|---|
| Nominal size | DN15–DN250 | 1/2–10 in. nominal |
| FBE film build | 300 μm | 0.300 mm |
| FBE film build | 400 μm | 0.400 mm |
| Straight length | 5.8 m | 5,800 mm |
| Straight length | 6 m | 6,000 mm |
| Straight length | 12 m | 12,000 mm |
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Factory catalog selections for single-layer FBE. Nominal DN differs from the measured outside diameter. Actual OD, wall, coating acceptance limits and pipe ends follow the selected order specification. A dual-layer system has its own values.
Pipe material, weld route and mechanical properties follow the steel specification on the order. Pipe grade and pipeline pressure rating stay with the steel specification.
ISO 21809-2 addresses plant-applied external single-layer FBE for pipeline corrosion protection. Where it is adopted, its qualification, application and inspection scope belongs with the project requirements; a dual-layer system needs its own applicable basis.
A qualified coating procedure establishes the intended material and application route. Production records then show the checks made on the ordered pipe. A material data sheet and a shipment inspection report answer different questions.
Cleaning and abrasive preparation create the surface condition required by the powder procedure. Surface profile, contamination and the interval before application influence the bond, so the preparation route is part of the coating work.
A dual-FBE overcoat is another epoxy layer. The polyethylene outer layer of 3LPE is a different system. An abrasion-resistant system is selected around handling and installation exposure.
The bare weld area and the coating termination make room for joining, examination and the field-joint system. Cutback length, edge shape and overlap requirements are coordinated before coating so the coated barrel and joint treatment meet correctly.
External FBE is supplied for a defined corrosion-control design. Pipe temperature, soil and groundwater conditions, cathodic protection and installation method establish the coating duty, set out in the pipeline corrosion-control plan.
Pull-through crossings and demanding handling can require an additional protective layer. The installation specification identifies that duty so the primary corrosion barrier and outer protection can be assessed separately.
Thickness readings are checked against the specified film requirement and sampling plan. The nominal target and a minimum allowed individual reading are different acceptance values; they need their own limits.
Continuity testing locates coating discontinuities with the method and voltage appropriate to the material and film thickness. The setting follows the coating material and film thickness.
Cure checks follow the selected powder procedure. Repairs use compatible materials and their specified preparation, cure and repeat inspection, keeping the repaired area within the agreed acceptance scope.
Padded contact points prevent hard edges and restraints from bearing directly on the coating. Pipes are kept clear of dragging contact during loading and unloading, with particular care at coating terminations.
Cutbacks retain temporary preservation compatible with the later weld and field-joint work. Receiving inspection distinguishes exposed steel or a damaged barrier from a superficial mark before the pipe is installed.
The quotation identifies the steel items and coating route, including overcoat and field-joint material scope where ordered. Packing and shipment terms use the actual lengths, quantities and destination.
No. Color does not identify the powder formulation, cure condition or approved service. Material identification and the coating records establish which system was applied.
The two surfaces serve different duties. A fluid-contact lining needs its own material, application and any required approval for that service. An external FBE description does not establish those internal-lining requirements.
No. A dual-FBE system uses epoxy for the additional outer layer. A 3LPE system adds an adhesive and polyethylene top layer over its epoxy primer; the material structure and applicable qualification differ.
Those operations can affect the coating and its termination. The approved fabrication and installation procedure defines allowable work and any repair or repeat inspection; the delivered coating does not provide a blanket approval for later heating or bending.
Place the qualification scope, acceptance tests and witness points in the coating order before the affected work starts. A routine shipment inspection cannot retroactively replace a required procedure qualification.
No. The offer identifies the plant-coated pipe and any separately included joint materials. Field application, site labor and joint inspection remain separately defined parts of the project scope.
Other items in the same product category.
We wrote these for buyers specifying and receiving exactly this kind of package.
Provide the pipe grade, OD, wall, lengths and quantity with the FBE system, film requirement and weld cutback. Attach the coating specification if available and add the destination. We price the steel, coating and agreed shipment scope together.