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Diving Services New Zealand Ltd
Diving Services New Zealand Ltd
Common Activities Undertaken by Diving Services New Zealand Ltd
- Underwater video and closed circuit TV (CCTV-HD) with communications to surface
- Seafloor searches - side scan sonar
- Still photography - standard or digital
- Lloyd’s Register classified in-water surveys
- Det Norske Veritas GL classified in-water surveys
- Underwater cutting, grinding, drilling, ultrathermic cutting , hydraulic chainsaw, pile removal
- Underwater ultrasonic thickness testing
- Hull cleaning
- Propeller polishing
- Sea chest cleaning
- In‑water valve replacement including overboard valves and sea chests
- Anode replacement – vessels, sheet piling, pipelines, cathodic testing
- Transducer and sonar maintenance including in‑water replacement and repair
- Salvage and recovery
- Stern bearing clearances
- Underwater plastering - epoxy and cement
- Pipeline inspections and high‑volume jet cleaning
- Confined space work
- Underwater Venturi and Jetting systems
- General ship repair
- Underwater ramset, bolts, nails etc.
- Contaminated environment diving – sewers and toxic
- Research diving- sampling, benthic sleds, benthic grab sampling
- Slipway diving including blocking and maintenance
- Marine farm maintenance
- ROV services – 150 meter inspection class ROV with manipulator arm
- Wet welding and cutting – hull repair and construction services
- Explosives - demolition
- Screw anchor installation and mooring inspection, recovery and supply
- Vibracoring
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