Price of Bronze Stop Valve DN50, for Marine Seawater Piping
Market Price Range
Currently, the price of a bronze stop valve DN50 on the market is roughly between 280 and 850 CNY (approx. $38–$117 USD). Lower-priced products are typically made of ordinary cast bronze, suitable for general auxiliary piping on ships. Higher-end models made of high-quality tin bronze (e.g., ZCuSn10Zn2), with higher pressure ratings and specially hardened sealing surfaces, tend to be at the upper end of the range and offer greater reliability.The main stop valve product names of China Stop Valve Network include:Flange Straight-through Copper Globe Valve,GB Cast Steel Flange Globe Valve,GB Stainless Steel Flange Globe Valve,Forged Steel Straight-through Globe Valve,Flange Straight-through Low Temperature Globe Valve,Flange Fluorine-lined Globe Valve,Oxygen-specific Globe Valve,Vacuum Isolated Straight-through Globe Valve.
Key Factors Affecting Price
Material Grade: Ordinary bronze offers acceptable corrosion resistance, while tin bronze (e.g., ZCuSn10Pb1, ZCuSn10Zn2) provides superior resistance to seawater corrosion and erosion, at a significantly higher cost.
Pressure Rating: Common ratings for marine seawater piping include PN6, PN10, and PN16. Higher ratings require thicker valve bodies and stronger construction, increasing the price.
Sealing Structure: The cost differs between metal-to-metal seals and soft rubber seals. Applications involving frequent operation may require additional sealing surface hardness.
Certification and Brand: Products with classification society certification (e.g., CCS, ABS, BV, DNV) are more expensive but offer traceable quality, making them more suitable for ship repair and newbuilding projects.
Purchasing Advice
Marine seawater piping has extremely high requirements for corrosion resistance and reliability. It is recommended to first verify the material grade, pressure rating, and the availability of marine type approval certificates. Do not focus solely on price — choose a manufacturer with proven experience in marine industry supply. Bulk purchases generally secure better unit prices. Also, ensure that the flange standard (GB/T, DIN, ANSI, etc.) matches your existing piping.
For an accurate quote, it is best to provide details such as the media (seawater), operating pressure and temperature, and any classification society requirements, so the manufacturer can offer a tailored solution and price.
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