IMPA: 813080

Copper Ring Kits for Marine Pipe Joints & Flange Sealing

Our copper ring kits (IMPA 813080) are essential spares for any ship's packing and jointing inventory. Manufactured from corrosion-resistant copper and supplied in a soft annealed state, these rings are ideal for sealing flanges, pipe joints, heat exchangers and valve bonnets. The kit holds a selection of popular diameters, allowing the crew to handle routine maintenance and emergency repairs without holding multiple separate ring sizes.

Each ring is produced to consistent thickness with clean, burr-free surfaces to help ensure reliable compression and a leak-tight joint. As copper naturally resists saltwater attack and offers excellent thermal conductivity, these ring kits are particularly suited for seawater lines, steam services and general-duty hydraulic systems aboard commercial and workboat fleets.

Key Features

Technical Specifications

SpecificationDetails
ProductCopper Ring Kit
IMPA Code813080
CategoryIMPA 81 - Packing & Jointing
MaterialAnnealed copper
Kit Sizes1/4", 3/8", 1/2", 5/8", 3/4", 1", 1-1/4", 1-1/2", 2" (approx.)
Inside Diameter Range0.25" - 2.0" (6 mm - 51 mm)
Thickness0.06" - 0.12" (1.5 mm - 3.0 mm)
HardnessAnnealed (soft)
ApplicationFlange joints, pipe connections, valve bonnets, heat exchangers
PackingIndividual compartment kit / pouch

Frequently Asked Questions

What are copper ring kits used for on ships?

Copper ring kits are used to create leak-tight seals between flanged pipe connections, valve bonnets, heat exchanger covers, and similar jointing applications where a soft metallic gasket is required.

Are copper rings suitable for seawater systems?

Yes, copper offers good resistance to seawater corrosion, making these rings a common choice in marine cooling, ballast, and general-service piping systems.

What sizes are included in the kit?

The kit contains an assortment of popular imperial and metric sizes, typically ranging from 1/4" to 2" (6 mm to 51 mm) inside diameter. Exact contents can be confirmed by the package label.

Can copper rings be reused?

Copper is a soft, deformable material, so rings are intended as single-use jointing items. For reliable sealing, always install a new ring after breaking the joint.

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