Bronze Valves
Bronze Flow Indicator Sight Glass – Hardened Glass Window – Moplen Ball
Bronze Flow Indicator Sight Glass – Hardened Glass Window – Moplen Ball
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The Bronze Flow Indicator Sight Glass with a single hardened glass window and Moplen (polypropylene) ball offers durable and reliable visual flow monitoring for a wide range of fluid systems. As media flows through the valve, the highly visible Moplen ball moves freely, providing a simple yet effective indication of active flow.
Built with a corrosion-resistant bronze body and a toughened glass viewing window, this unit is suitable for higher temperatures and pressures than standard plastic domes. The Moplen ball adds chemical resistance, making this flow indicator ideal for use in water, light chemical, and general industrial applications.
Key Features:
- Hardened glass single window for durable flow visibility
- Moplen ball for clear movement and chemical resistance
- Bronze body for excellent corrosion and thermal resistance
- Reliable visual flow confirmation for pressurised lines
- Suitable for water, oils, light chemicals, and non-aggressive fluids
- Ideal for process monitoring in industrial and marine systems

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.