01
Saltwater corrosion, alloy selection, sealing integrity, and operating conditions for cooling systems.
SEAWATER
02
Isolation valves, check valves, and transfer valves for ballast, bilge, and dewatering systems.
Ballast
03
Shut-off valves, check valves, strainers, and sealing solutions selected for your specific media and safety requirements.
UTILITY FLUIDS
04
Isolation, control, and condensate management for thermal systems and auxiliary equipment.
THERMAL
05
Industrial valves, check valves, and sealing solutions for marine water supply and onboard utilities.
UTILITIES
06
Verification of service conditions, controls, and specific safety and documentation requirements.
SAFETY
A single valve family may be suitable for multiple systems, but materials of construction, end connections, and certification requirements can vary.
01
Body, Disc, and Seat Materials
02
End Connection, Drilling, and Face-to-Face Dimensions
03
Classification Requirements and Required Documentation
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Thru-Hull Penetration and Valve Installed
Actual view of a valve installed adjacent to a hull penetration or seawater cooling circuit.
01
Bronze, copper alloys, cast iron, carbon steel, or stainless steel: verify compatibility with seawater, the process fluid, and operating conditions.
02
ANSI/ASME Class, PN ratings, bolt circle dimensions, lug/wafer flanges, face-to-face dimensions, and mounting orientations.
03
Manual override, gear operator, pneumatic, electric, or electro-hydraulic actuation: ensure provision for power supply and position feedback signals.
04
Certificates and testing to be specified based on system requirements, shipyard specifications, and classification society standards.
SPECIFY
ADAPTOR
REPLACE
01 / MARINE VALVES
ANSI/ASME or PN flanges, face-to-face dimensions, actuation, and material: every interface must be confirmed.
02 / AUTOMATION
03 / SEALING SOLUTIONS
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Assembled Valve and Actuator Package
Ensure a clear view of the interfaces, actuation, and position feedback.
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Gaskets and Sealing Components
Actual photo of flat gaskets, metallic seals, and custom-cut parts manufactured in our shop.
Please specify DNV, Lloyd’s Register, or the applicable regulatory body, along with the system function and the exact type of certificate required. A batch certificate alone does not constitute a Type Approval.
Marine Classification Societies
Required documentation and approvals are determined by the classification society and the specific requirements of each project.
01
Seawater, ballast, bilge, fuel, steam, or other onboard piping systems.
02
Pressure, temperature, flow rate (if applicable), and required function.
03
NPS or DN, ANSI/ASME class or PN, RF/FF flange, lug or wafer style, and face-to-face dimensions.
04
Handwheel, gear operator, pneumatic, electric, or hydraulic actuation, and position feedback.
05
Classification society, certification, and testing requirements.
06
Unit quantities and project or turnaround schedule.
01 / TECHNICAL CONSULTING
No, not systematically. Requirements depend on the vessel, the system piping, applicable regulations, and classification society standards. A clear distinction must be made between Type Approval, individual product certification, and test reports.
02 / TECHNICAL CONSULTING
Not based on nominal pressure alone. Flange drilling, dimensions, face-to-face length, materials of construction, and pressure-temperature ratings must all be verified.
03 / TECHNICAL CONSULTING
Bronze, copper alloys, ferrous materials, and certain stainless steels perform differently in seawater service. Proper material selection depends specifically on flow dynamics, corrosion conditions, and class requirements.
04 / TECHNICAL CONSULTING
VAMECA offers custom gasket cutting services. Material, thickness, and geometry must be selected based on fluid type, temperature, pressure, and assembly specifications, as well as any unique project requirements.