Bronze Valves
Mariani Koei UNIC Actuated Flanged PN16 2 PCE Full Bore B62 Bronze Ball Valves (Electric Power Open Power Close)
Mariani Koei UNIC Actuated Flanged PN16 2 PCE Full Bore B62 Bronze Ball Valves (Electric Power Open Power Close)
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The Mariani Koei UNIC Actuated Flanged PN16 Ball Valve offers a high-performance solution for demanding flow control applications. Constructed from durable B62 bronze, this 2-piece full bore valve ensures excellent corrosion resistance and smooth media flow, making it ideal for marine, industrial, and water systems. Its flanged PN16 connection provides a secure and reliable fit in pipeline networks.
Fitted with the precision-engineered Koei UNIC electric actuator, the valve delivers power open/power close functionality for fast and consistent actuation. The electric actuator features a robust design with a manual override as standard, and a stove enamel finish for increased protection in outdoor environments. Designed for long-term performance and easy integration into automated systems, this actuated valve ensures dependable operation even under challenging conditions.
Key Features:
- Full Bore Design: Allows unrestricted flow, reducing pressure drop across the valve
- Robust B62 Bronze Body: Ideal for marine, water, and industrial applications requiring corrosion resistance
- Flanged PN16 Connection: Ensures a strong, leak-free installation in pipeline systems
- Koei UNIC Electric Actuator: Delivers precise power open/power close actuation with manual override
- Reliable Operation: Engineered for long-term durability with a stove enamel finish for external protection
- Two-Piece Construction: Simplifies maintenance and internal component access
- Suitable for Automation: Designed for seamless integration into control systems
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Technical Specifications:
- Valve Type: 2-Piece Ball Valve
- Body Material: B62 Bronze
- Connection Type: Flanged PN16
- Bore Type: Full Bore
- Actuator Type: Koei UNIC Electric – Power Open / Power Close
- Manual Override: Standard
- Finish: Stove Enamel (Actuator)
- Applications: Marine, water treatment, HVAC, general industrial





Why choose us?
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Built to Last
Our bronze valves are engineered for long-term durability, corrosion resistance, and consistent performance across demanding applications.
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Expert Support
We combine technical knowledge with real-world experience to help you find the right valve solution for your system — fast.
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Fast Turnaround
With efficient stock handling and responsive service, we keep your projects moving without unnecessary delays.
FAQs
What are bronze valves used for?
Bronze valves are commonly used for isolating, regulating, and directing the flow of water, steam, air, and non-aggressive fluids in industrial, marine, and commercial systems. Their corrosion resistance makes them ideal for saltwater and outdoor applications.
Are bronze valves suitable for potable water?
Yes, bronze valves are often used in potable water systems, especially when made from lead-free or WRAS-approved bronze alloys. Always verify material compliance with local drinking water standards.
What is the difference between bronze and brass valves?
Bronze is an alloy of copper and tin, offering better corrosion and wear resistance than brass, which is typically made of copper and zinc. Bronze valves are generally more durable and preferred for marine and industrial applications.
Can bronze valves handle high temperatures and pressures?
Yes, most bronze valves are rated for moderate to high temperatures and pressures. Many models can handle up to PN25 or 600 psi, and temperatures ranging from -10°C to 150°C, depending on design and sealing materials.
Do bronze valves require regular maintenance?
Bronze valves are low-maintenance, but like any mechanical component, periodic inspection and cleaning (especially strainers and check valves) are recommended to ensure long-term performance and safety.