Bronze Valve

Bronze Valves for Various Industries

Corrosion-resistant bronze valves, specifically designed for seawater applications, are made of tin-aluminum bronze to resist chloride ion corrosion. They cover the full pressure range from 150 LB to 1500 LB and are suitable for seawater desalination, marine vessels, and offshore platforms. Featuring reliable sealing and a long service life, these valves provide worry-free and durable on/off control for high-salinity pipelines.

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FAQ

In seawater applications, standard stainless steel valves often suffer from corrosion and leaks. Can bronze valves really solve this problem?‌

We use C95800 nickel-aluminum bronze, which is inherently resistant to chloride ion pitting and marine biofouling. It does not perforate even after long-term operation in seawater, and its service life is more than three times that of standard stainless steel valves.

There are many requirements from different classification societies and project standards. Can you provide the necessary compliance certifications?‌

Our entire product line complies with API, DIN, and ASTM standards and supports certifications from major classification societies such as CCS and ABS. Each unit comes with a complete material certificate and factory test report, ensuring direct approval.

Our existing piping uses non-standard flanges or special nominal diameters. Can you quickly customize a compatible solution?‌

We support structural customization for all valve types, including gate valves, globe valves, and check valves. Flange standards include API, ANSI, and JIS. Standard custom orders can be delivered within 7 days without requiring modifications to your existing piping.

For seawater systems with different pressure ranges, how can I select the appropriate bronze valves without wasting money?‌

We cover the full pressure range from 150 LB to 1500 LB. We can precisely match the appropriate grade based on actual operating conditions, so there’s no need to blindly select higher-spec models—helping you optimize your procurement costs.

Is maintenance of bronze valves troublesome, and are spare parts easy to source?‌

The entire series features a universal, easy-to-disassemble design with a high degree of spare part standardization. A maintenance manual is included with each unit, and under normal operating conditions, the annual maintenance frequency is 70% lower than that of standard valves.

FAQ
Why FLOWORK

Corrosion Resistant Aluminum Bronze Valve Body Series

Valve bodies are manufactured according to ASTM B148 material grades:

  1. Basic aluminum bronze series‌: C95200, C95210, C95220. These are basic high-strength, wear-resistant aluminum bronzes suitable for medium- and low-pressure valve sleeves and general-purpose wear-resistant components.
  2. Medium- to high-strength aluminum bronze series‌: C95400, C95410—reinforced with appropriate amounts of iron and manganese to further enhance strength and wear resistance; these are primarily used in medium- and high-pressure valves and heavy-duty gears.
  3. High-Strength Nickel-Aluminum Bronze Series: C95500, C95510, C95520—enhanced with nickel to optimize corrosion resistance; suitable for medium- and high-pressure valve components in marine environments.
  4. High-Corrosion-Resistant Nickel-Aluminum Bronze Series‌: C95800, C95900—these grades offer the best resistance to seawater corrosion under this standard. Designed specifically for high-salinity marine environments, they are widely used in seawater desalination, marine valves, and core components of offshore platforms.

They provide inherent resistance to chloride ion pitting corrosion and cavitation erosion from seawater, as well as resistance to marine biofouling.

The full series covers pressure ratings from 150 LB to 1,500 LB and operates within a wide temperature range of -200°C to 400°C, fully complying with marine industry standards such as DNV, ABS, and BV.

‌Practical Benefits‌

The corrosion-resistant structure extends the valve’s service life in seawater applications to over 10 years—far exceeding the 2–3-year lifespan of ordinary stainless steel valves—significantly reducing the frequency of downtime for replacement.

The zero-leakage seal design completely eliminates seepage, leakage, and dripping of seawater, preventing safety hazards caused by medium leakage in marine pipelines. The all-metal construction is resistant to salt fog corrosion, ensuring safe and reliable operation throughout its service life.

Low wear and the elimination of frequent maintenance reduce the annual maintenance cost per valve by 70%, resulting in total lifecycle costs that are significantly lower than those of standard valve types requiring frequent replacement.

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