Jhon Gjerde | Oceanist Engineering
Oceanist Engineering supplies John Gjerde solutions for safe tank venting on floating constructions, supporting reliable operation and protection of crew, vessel, and environment. John Gjerde specialises in tank vent check valves and related venting technology, developed and tested to perform consistently under real operational conditions.
Products & Solution Areas
- Tank Vent Check Valves for service tanks (e.g., ballast, fuel, lube oil, fresh water and other utility tanks)
- HIDE Air Vent Check Valves: optimised valve range designed to enhance air capacity and operational reliability, with options such as heating and protective screens depending on project needs
- AERO Series Vent Heads: widely used float-type air closing devices for deck or superstructure mounting (application-dependent)
- Mud Tank Venting Solutions for offshore-related tank venting duties (where applicable)
- Strainers / Filter Solutions for liquids and specific tank applications (project-dependent)
Typical Applications
- Air vent terminations on ballast, fuel, lube oil, fresh water and service tanks across commercial and offshore vessels
- Newbuild and retrofit projects requiring reliable automatic closing devices on tank air pipes
- Offshore supply and specialised vessels with mud tank venting requirements
- Ice / cold-climate operating profiles where heating options are relevant (project-dependent)
What Oceanist Provides
- Scope definition and specification support aligned with tank type, vent line sizing, deck arrangement, and operational profile
- Technical coordination with shipyards and project stakeholders for interfaces and installation readiness
- Execution support from procurement through delivery and commissioning coordination
- Aftermarket support coordination (spares planning and lifecycle continuity where applicable