Duplex Stainless Steel Globe Valve DN80 Price, Seawater Desalination Specialized
Duplex Stainless Steel Globe Valve DN80 Price Reference
Currently, the market price of a seawater desalination specialized duplex stainless steel globe valve DN80 generally ranges from 1,800 to 4,500 CNY per unit (excluding tax and freight). The specific price varies significantly due to the following factors:
Material Grade: 2205 (F51) duplex steel is moderately priced, around 1,800–3,000 CNY; higher-end 2507 (F53) offers superior corrosion and pitting resistance, typically costing 3,500–4,500 CNY.The main stop valve product names of China Stop Valve Network include:ANSI Flange Straight-through Globe Valve,Angle-type Ammonia Globe Valve,High Temperature and Pressure Power Station Electric Globe Valve,Insulation Globe Valve,Oxygen-specific Globe Valve,
Vacuum Isolated Straight-through Globe Valve,Y-type Jacket Insulation Globe Valve,Flange Straight-through Low Temperature Globe Valve.
Sealing Structure: Hard seal (Stellite alloy overlay) is suitable for high temperature and high pressure, costing more than conventional soft seal (PTFE).
Actuation Type: Handwheel type is the most economical; adding an electric or pneumatic actuator increases the total price by 800–2,000 CNY.
Certification Standard: Manufacturers with classification society certification or pressure vessel standard compliance will have 15%–25% higher quotes.
It is recommended to clearly provide the medium chloride concentration, design pressure, and required material certificates when requesting quotes, and obtain written quotations from at least three reputable manufacturers.
Key Considerations for Seawater Desalination Specialized Globe Valve Procurement
Material Verification: Always require material certificates and spectral analysis reports from the manufacturer to prevent counterfeit materials. The yield strength of 2205 duplex steel is approximately twice that of ordinary 316 stainless steel.
Seal Service Life: For frequent on-off operations, a hard seal structure is recommended. Although soft seal is lower in price, its long-term resistance to seawater erosion is inferior to that of hard seal.
Batch Quantity & After-Sales: For bulk purchases (5 units or more), you can negotiate a 5%–10% discount, and confirm a warranty period of no less than 18 months.
Summary
The duplex stainless steel globe valve DN80 price primarily falls within the range of 1,800–4,500 CNY. For seawater desalination specialized selection, key factors to verify are the material grade (2205/2507) and sealing type. It is advisable to prioritize manufacturers with proven seawater project experience, balancing initial investment with whole-lifecycle maintenance costs.
For manufacturer recommendations, request-for-quotation templates, or material comparison charts, please leave a message in the comments section.
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