Mariani Ball Valves

Mariani specialises in high-quality bronze ball valves designed for durability and reliability in marine and industrial applications. Manufactured from premium bronze, these valves offer exceptional resistance to corrosion, making them ideal for seawater environments and harsh operating conditions. Their robust construction ensures long service life, even in demanding applications such as shipbuilding, offshore platforms, and industrial water systems.

Key Features

Key features and benefits of Mariani Ball Valves.
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Key Features

Built from high-quality bronze for superior corrosion resistance, ensuring longevity in saltwater and aggressive environments.
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Key Features

Precision-engineered for tight shutoff, reducing the risk of leaks and maintaining efficiency in high-pressure applications.
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Key Features

Designed to withstand extreme temperatures and pressures, offering extended service life with minimal wear and tear.
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Key Features

Low torque requirements allow for easy manual handling, while compatibility with actuators ensures seamless automation.
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Key Features

Suitable for continuous use in marine conditions where exposure to sediment, chemicals, and fluctuating temperatures is common.
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Key Features

Ideal for shipbuilding, offshore platforms, industrial water systems, and coastal installations where metal alternatives may degrade faster.

Flanged Ball Valves

Mariani Flanged Ball Valves offer robust flow control for demanding industrial applications. Designed and manufactured in Italy, these valves combine precision engineering with long-lasting performance. The flanged ends provide secure, bolt-on connections, making them ideal for pipeline systems where leak-free operation is critical.

Available in a range of materials such as carbon steel and stainless steel, Mariani Flanged Ball Valves are suitable for various media including steam, water, oil, and gas. They are commonly used in sectors like petrochemical, marine, HVAC, and general process industries. With options for full bore and reduced bore configurations, these valves ensure efficient flow with minimal pressure drop.

Key Features:

  • Robust flanged design for secure pipeline integration
  • Available in ANSI and DIN flange standards
  • Suitable for high-pressure and high-temperature applications
  • Precision-machined ball for reliable sealing and control
  • Compatible with manual, electric, or pneumatic actuation
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Screwed Ball Valves

Mariani Screwed Ball Valves offer a reliable and compact solution for flow control in a wide range of industrial and commercial applications. Designed with precision engineering, these valves feature a robust threaded (screwed) end connection that ensures secure, leak-tight installation without the need for flanges or welding.

Crafted from high-quality materials such as stainless steel and carbon steel, Mariani Screwed Ball Valves are built to withstand high pressures and temperatures, making them suitable for use in systems handling steam, water, gas, and various chemicals. The full bore design ensures minimal flow restriction, while the anti-blowout stem and reinforced seats deliver enhanced safety and durability.

Key Features:

  • Threaded ends for easy installation and maintenance
  • Full bore for unrestricted flow
  • Anti-blowout stem for added safety
  • Available in stainless steel and carbon steel
  • Suitable for water, steam, oil, gas, and chemical applications
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Frequently Asked Questions

Who is Mariani, and what do they specialise in?

Mariani is a renowned manufacturer of high-quality bronze ball valves, specifically designed for marine, shipbuilding, and offshore applications. Their valves are built for durability in harsh saltwater environments.

Why are Mariani Ball Valves ideal for the marine industry?

Mariani Ball Valves are made from marine-grade bronze, which offers superior corrosion resistance, strength, and longevity in seawater and harsh coastal environments.

What makes bronze a better choice for marine applications?

Bronze is naturally corrosion-resistant, particularly in saltwater and brackish water conditions, making it the preferred choice for marine valves, shipbuilding, and offshore platforms.

What types of connections are available for Mariani Ball Valves?

Mariani Ball Valves are available with threaded, flanged, and solder-end connections, making them versatile and easy to install in marine piping systems.

Are Mariani Ball Valves pressure-rated for marine applications?

Yes, Mariani Ball Valves are designed to handle high-pressure systems, ensuring reliability in marine fuel lines, bilge systems, and water intake/discharge applications.

Can Mariani Ball Valves be used for potable water on boats and ships?

Yes, Mariani offers WRAS-approved bronze ball valves, making them safe for use in potable water systems on ships, yachts, and offshore structures.

Are Mariani Ball Valves resistant to galvanic corrosion?

Yes, thanks to their high-quality bronze construction, Mariani Ball Valves have excellent resistance to galvanic corrosion, a common issue in marine applications where different metals interact in seawater.

Do Mariani Ball Valves meet industry standards for marine use?

Yes, Mariani Ball Valves comply with marine and offshore industry standards, including approvals from Lloyd’s Register, DNV, and other classification societies.

Can Mariani Ball Valves be used in fuel and oil lines?

Absolutely. Mariani Ball Valves are suitable for diesel, fuel oil, and other hydraulic fluids, making them ideal for engine rooms, fuel transfer systems, and marine hydraulic circuits.

Are Mariani Ball Valves suitable for automated systems?

Yes, many Mariani Ball Valves feature ISO 5211 mounting pads, allowing for easy integration with pneumatic or electric actuators for remote operation in marine systems.

Where are Mariani Ball Valves commonly used?

Mariani Ball Valves are widely used in shipbuilding, offshore oil rigs, desalination plants, cooling systems, bilge pumps, and marine fuel systems due to their durability in extreme environments.

How can I order Mariani Bronze Ball Valves?

You can browse our full range of Mariani Bronze Ball Valves on Ballvalve.co.uk, request a quote, or contact our team for expert advice on selecting the right valve for your marine application.

FAQ

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