Threaded Mariani Globe Valves are suitable for a wide variety of fluids—including seawater, fuel, oil, and steam—offering flexibility across both marine and industrial applications. Their compact footprint makes them perfect for tight installation spaces, while the design supports both manual operation and easy integration with electric or pneumatic actuators.

Key features and benefits.

Key Features

Designed for fast, straightforward installation, these valves are ideal for compact areas and smaller diameter piping. The threaded ends allow for easy removal and maintenance without the need for welding or specialised tools.

Key Features

Built from robust bronze or stainless steel, these valves resist corrosion and wear in harsh saltwater conditions, ensuring long-lasting durability in demanding marine and offshore environments.

Key Features

Optimised for smooth throttling, Mariani Threaded Globe Valves offer accurate flow regulation with minimal pressure loss. Precision-machined sealing surfaces deliver a tight shutoff, helping to prevent leaks and boost overall system efficiency.

The Mariani 335 Series Globe Valves are engineered for dependable and accurate flow control in tough marine and industrial settings. Constructed from high-grade marine materials such as bronze and stainless steel, these valves offer strong resistance to corrosion, making them perfectly suited for handling seawater, fuel, oil, and steam.

Size range:	DN08 - DN100 (1/4" - 4")
Connection:	Threaded
Working pressure:	225psi
Material:	Bronze
Applications:	Potable/Waste/Sea Water, Cooling Systems, Oil, Gases, Air, Desalination, Marine Applications

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Built to withstand high temperatures and pressures, the Mariani 338 Series Globe Valves are a trusted solution for demanding fluid control applications. Ideal for use in ship engine rooms, offshore platforms, and industrial facilities, these valves ensure reliable, long-term operation with minimal maintenance requirements.

Size range:	DN08 - DN100 (1/4" - 4")
Connection:	Threaded
Working pressure:	225psi
Material:	Bronze
Applications:	Potable/Waste/Sea Water, Cooling Systems, Oil, Gases, Air, Desalination, Marine Applications

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The Mariani 352 Series Globe Valves are built for versatility, offering flexible installation options to suit a wide range of marine and industrial systems. Their solid construction minimises maintenance demands, while the option for electric or pneumatic actuator integration enables reliable remote operation.

Size range:	DN08 - DN100 (1/4" - 4")
Connection:	Threaded
Working pressure:	225psi
Material:	Bronze
Applications:	Potable/Waste/Sea Water, Cooling Systems, Oil, Gases, Air, Desalination, Marine Applications

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These globe valves are built with a rugged design and are available with either flanged or threaded connections, allowing for straightforward installation and maintenance. Precision-machined sealing surfaces ensure a secure, leak-tight shutoff, helping to reduce fluid loss and improve overall system performance.

Size range:	DN08 - DN100 (1/4" - 4")
Connection:	Threaded
Working pressure:	700psi
Material:	Bronze
Applications:	Potable/Waste/Sea Water, Cooling Systems, Oil, Gases, Air, Desalination, Marine Applications

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Featuring precision-machined sealing surfaces and a streamlined internal flow path, these valves are engineered to optimise fluid performance by reducing turbulence and minimising pressure drop. This results in smooth, efficient flow control across a variety of marine and industrial systems.

Size range:	DN08 - DN100 (1/4" - 4")
Connection:	Threaded
Working pressure:	450psi
Material:	Bronze
Applications:	Potable/Waste/Sea Water, Cooling Systems, Oil, Gases, Air, Desalination, Marine Applications

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These valves feature precision-machined sealing surfaces and a streamlined internal design that optimises fluid flow while minimising turbulence and pressure drop. Available in a range of sizes and pressure ratings, they conform to international maritime standards, ensuring compliance with classification societies such as ABS, DNV, and Lloyd’s Register. By integrating Mariani 355 Series Globe Valves into your system, you benefit from superior durability, precision flow regulation, and industry-leading reliability, making them a trusted choice for marine, industrial, and offshore applications.

Size range:	DN15 - DN100 (1/2" - 4")
Connection:	Threaded
Working pressure:	450psi
Material:	Bronze
Applications:	Potable/Waste/Sea Water, Cooling Systems, Oil, Gases, Air, Desalination, Marine Applications

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Globe valves are commonly used for regulating flow, providing precise throttling and shutoff in systems like seawater cooling, fuel lines, ballast control, and steam circuits onboard ships.

They offer excellent control over flow rates and pressure, making them ideal for systems that require fine regulation and tight shutoff in demanding saltwater environments.

Marine globe valves are typically made from corrosion-resistant materials such as bronze, stainless steel, or duplex alloys to withstand saltwater and aggressive media.

Yes, they are suitable for both, provided the materials are compatible with the media. Bronze and stainless steel options are commonly used for these applications.

It depends on the system. Threaded valves are ideal for smaller pipe sizes and quick maintenance, while flanged valves are preferred in high-pressure systems for a secure, leak-free connection.

Globe valves are designed for throttling and flow control, while gate valves are mainly used for isolation with minimal pressure drop when fully open.

They are built for durability but still require routine inspection and maintenance due to exposure to saltwater and high operating conditions, especially in critical systems.

Marine globe valves should comply with standards such as ISO, DIN, JIS, or those from marine classification societies like DNV, Lloyd’s Register, or ABS.

Yes, especially metal-seated globe valves which are suitable for high-temperature systems such as steam lines and engine room piping.

Manual valves are common for straightforward operations, but actuated globe valves are preferred in automated systems where remote control or faster response is needed.

They provide accurate control of flow into and out of ballast tanks, ensuring safe and balanced vessel operation.

Materials like bronze offer some natural resistance to biofouling, but regular cleaning and maintenance are essential to prevent buildup in seawater systems.

Please feel free to request information and advice using the form below or call us on 0151 547 1221

Mariani Threaded Globe Valves