Mariani
Mariani Valves
Precision Italian Engineering for Demanding Marine Systems
Mariani Valves are built on decades of craftsmanship, precision, and performance — trusted across Europe and beyond for critical applications in the marine, naval, and offshore sectors. Known for their premium-quality ball, gate, and globe valves, Mariani delivers flow control solutions that meet the exacting standards of shipbuilders, marine contractors, and engine room engineers.
Designed and manufactured in Italy, Mariani valves combine heavy-duty construction with smooth operation and corrosion-resistant materials — making them ideal for aggressive and high-pressure marine environments.
Built for Marine Applications
- Full-Bore Ball Valves: Perfect for quick shut-off in fuel lines, cooling systems, and bilge transfer circuits.
- Heavy-Duty Gate Valves: Designed for reliable isolation in seawater intake and fire-fighting lines.
- Precision Globe Valves: Used where flow control and regulation is essential, such as steam systems or lube oil lines.
- Robust Material Options: Including bronze, stainless steel, and nickel alloys to ensure compatibility with seawater, oil, steam, and chemicals.
- Flanged, Threaded, and Weld Ends: Multiple connection types to suit all marine installation preferences.
Engineered for Control and Confidence
- Smooth Operation: Machined with precision for reliable sealing and long-term performance.
- Compact and Durable: Ideal for confined marine environments, with space-saving designs that don’t compromise on strength.
Low Maintenance: Built to last, even under frequent cycling and harsh conditions.
- Custom Actuation Options: Easily integrated with pneumatic or electric actuators, including packages from Koei and Valpes.
Supplied by Actuation Valve – UK Marine Valve Experts
As a key UK supplier of Mariani Valves, Actuation Valve offers fast access to a wide range of ball, gate, and globe valves tailored for marine systems. We support new builds, refits, and maintenance contracts with flexible delivery options, expert technical guidance, and full actuation solutions.
Marine Applications Include:
- Fuel Oil Transfer
- Cooling and HVAC Systems
- Bilge and Ballast Management
- Steam and Condensate Lines
- Fire-Fighting and Isolation Systems
- Engine Room Pipework
Mariani – Where Performance Meets Precision
Engineered in Italy. Trusted at sea.
Mariani Valves offer rugged performance and tight shut-off in the toughest marine conditions — with full support from Actuation Valve’s 25+ years of industry experience.