Piping
Corroded pipes fail where they are hardest to reach. We measure, fabricate and install new spools, valves and supports, and test them before the system goes back into service.
- Systems
- Ballast · bilge · fire · fuel · cargo
- Materials
- Carbon steel, galvanised, stainless
- Tests
- Hydrostatic and tightness
- AButterfly valve
- BSection to renew
- CPipe support
What we do
01 / 05- 01Survey and measurement of pipe runs on board
- 02Spool fabrication with flanges and fittings
- 03Renewal of corroded sections and supports
- 04Valve overhaul and renewal
- 05Hydrostatic and tightness testing
- 06Isometric sketches for the ship's records
The ballast main inside the double bottom — renewed and pressure-tested.
How we work
02 / 05- 01
Measure
Pipe runs, flanges and supports measured on board, with an isometric sketch for each spool.
- 02
Fabricate
Pipe, flanges and fittings of the right class and material, welded to procedure.
- 03
Install
Old sections removed, new spools fitted with gaskets, bolts and supports.
- 04
Test
Hydrostatic test at the specified pressure, witnessed and recorded.
What you receive
03 / 05- Class rules for piping systems
- ASME B31.3 · ISO 15614-1 — pipe welding
- ASME B16.5 · EN 1092-1 · JIS — flanges
Questions
04 / 05Q.01What happens to galvanising when a pipe is welded?
Welding burns it off. Spools are galvanised after fabrication, or the welded areas are repaired with a zinc-rich coating where the system allows.
Q.02What pressure is used for the test?
The test pressure follows the class rules for the system, usually a multiple of the design pressure; it is agreed before the test and recorded.
Q.03Can new spools match the existing flanges?
Yes. Flange standard, rating and drilling are measured on board, so new spools fit the existing valves and equipment.
Request a repair.
Tell us the ship, the port and the job. We reply with questions, a plan or a quote.