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Valves, Pipes
& Fittings

  • Seal leaks & rebuild wall loss in place
  • Restore valve bodies, seats, flanges, and fittings
  • Reinforced composite wraps — no welding or hot work
The Challenge

Pipework and valves are where corrosion, erosion, and leaks show up first. Internal and external wall loss thins the pipe, valve bodies and seats wear, and flanges weep — and once integrity is compromised, the risk of a release grows with every operating hour. Cutting out and re-welding sections requires isolation, draining, and hot-work permits that can turn a small defect into a major shutdown.

A Real Rumford Example
100-Year-Old Riveted Pipe Before
The Problem
100-Year-Old Riveted Pipe

A roughly 6 ft diameter riveted steel water main, a century old and 20 ft underground, was losing wall thickness and weeping at rivets and laps.

  • ReplacementNot Feasible
  • AccessUnderground
  • Shutdown AllowedNone
Hover for Belzona repair →
Rebuilt in Place — Belzona After — Belzona
The Solution
Rebuilt in Place — Belzona

Rivets and laps coated, then over-wrapped with Belzona SuperWrap to ISO 24817 — repaired live, with the city water supply never shut off.

  • Repair Scope20 ft × 6 ft dia
  • Time to Complete1 Week
  • DowntimeZero
Replacement wasn't possible and the city water supply couldn't be shut off — repaired live, in place.

Read the full case history →

A real Rumford Industrial Group project using Belzona solutions. Actual results vary by equipment, damage extent, and site conditions — contact us for a project-specific estimate.

Carbon steel lines, elbows, tees, reducers, valve bodies, and flanged joints suffer internal erosion, external corrosion, and corrosion under insulation. Vibration and thermal cycling loosen joints and open leaks, while abrasive or aggressive process media eat away wall thickness from the inside.

Belzona repair composites and reinforced wrap systems rebuild lost wall thickness and restore structural strength to pipework in accordance with recognized standards such as ISO 24817 and ASME PCC-2 — applied live or during turnaround, with no hot work. Rumford Industrial Group delivers these repairs on-site with 24-hour emergency support.

Belzona Solutions for This Application
Corrosion & Chemical-Resistant Coatings
Cold-curing and epoxy coatings applied to valve bodies, guides, slides, diaphragms, and expansion bellows for erosion, corrosion, and chemical resistance.
Pipe Strength Restoration
Composite patches and reinforced wraps that restore strength to weakened or holed pipes, including high-performance engineered systems built to ISO 24817 and ASME PCC-2 as an alternative to welding.
Flange Face Reformation
Rebuilding damaged flange faces affected by chemical attack, crevice/galvanic corrosion, and high-pressure steam exposure.
External Encapsulation & Corrosion Prevention
Peelable, resealable coatings combined with corrosion inhibitors to protect flanges, fastenings, and pipework from long-term atmospheric, galvanic, and crevice corrosion.
What Belzona Can Do for Valves, Pipes & Fittings
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Rebuild erosion – corrosion damage
Restore lost wall thickness on pipes, valve bodies, and fittings with high-strength metal repair composites.
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Apply erosion-corrosion-resistant coatings
Line internal surfaces with ceramic-filled coatings that resist abrasive and aggressive media.
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Repair existing linings
Patch and blend into damaged or disbonded linings without stripping the whole system.
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Rebuild valve guides and slides
Return worn guides and sliding faces to correct dimensions for smooth, tight operation.
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Repair/resurface valve diaphragms & expansion bellows
Rebuild and re-coat flexible components with elastomer repair materials to restore sealing.
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Rebuild threaded bushes
Reform worn or stripped threads in bushes and housings to full holding strength.
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Reline/reseat gland bush housings
Re-form worn gland housings and seating faces to stop stem leakage.
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Repair cracked and holed casings
Rebuild cracked or perforated valve and fitting casings in situ, with no welding.
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Repair steam cut/wire drawn flanges
Fill and reform flange faces damaged by high-pressure steam cutting and wire drawing.
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Bond and seal pipe joints
Structurally bond and seal joints and couplings against leakage and corrosion ingress.
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Repair leaks in pipes
Arrest active, pressurized leaks in place so a permanent composite repair can be built around the defect.
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Protect and encapsulate insulation
Seal cladding and lagging with Lagseal to prevent moisture ingress and corrosion under insulation.
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Repair distorted/corroded flange faces
Rebuild pitted and distorted faces to a flat, gasket-ready sealing surface.
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Rebuild and protect concrete pipes
Repair spalled concrete pipework and line it against chemical and abrasive attack.
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Create pipe support linings/bond wear plates
Isolate pipes from supports and bond wear plates to eliminate fretting and crevice corrosion.
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Form raised flange faces with the Belzona Flange Face Forming Kit
Re-form raised flange faces on-site to original profile using the purpose-built forming kit.
See it on our interactive Solution Maps

Explore where corrosion, erosion, and leaks develop across pipework and valves with Belzona's interactive industry maps.

Browse all Solution Maps →