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Technical services &
equipment solutions.
Advanced repair, rebuilding and hands-on training solutions for high-pressure marine cleaning systems — any brand, restored to as-new or better condition, with controlled cost and downtime.
Repair services
We diagnose and repair high-pressure cleaning systems and associated equipment, restoring performance and minimizing downtime.
- Electrical system diagnostics and repair
- Leak detection and pressure restoration
- Replacement of damaged components
- Troubleshooting of operational failures
- On-site or workshop-based interventions
- Non-operational units
- Pressure loss (e.g. 180–280 bar limitations before repair)
- Corrosion & seawater damage
- Hose, valve, and fitting failures
Fast return to operation with controlled cost and downtime — your equipment back in service, wherever the vessel is.
Rebuilding services
Full equipment rebuilding & performance upgrade. We specialize in complete reconstruction and upgrading of high-pressure cleaning units (any brand), restoring them to as-new or better condition.
- Complete pump disassembly and rebuild
- Removal of corrosion caused by seawater ingress
- Replacement of worn internal components
- New pumps, unloader valves & safety valves
- New electrical panels and systems
- New pressure gauges, hoses, and fittings
- Welding repairs (tank / chassis)
- Stainless steel treatment & cleaning
- Full repainting and corrosion protection
- Installation of new high-pressure hoses & spray guns
- Upgrade of electrical and control systems
- Delivery with updated maintenance manuals


Training & technical support
Hands-on training for marine engineers & crew. At our Skaramangas facility, SEVEN CHEM & TECH provides practical training programs focused on high-pressure cleaning systems and safe operation onboard vessels.
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