The main control valve product names of China Control Valve Network include:Self-reliance pressure differential regulator,Self-reliance pressure regulator,Self-reliance temperature regulator,Siemens valve locator,Small flow regulating valve,Solenoid directional valve,Special seat eccentric adjustable control valve

Why Titanium is Non-Negotiable for Offshore ProjectsSea water is one of the most corrosive natural environments due to high chloride concentrations. While stainless steel (316L) is common, it often suffers from pitting and crevice corrosion in stagnant seawater.Total Immunity to Seawater: Titanium alloys (such as Gr2, Gr5, or Gr12) form a stable, protective oxide film that is virtually inert in seawater and marine atmospheres.Exceptional Strength-to-Weight Ratio: In offshore platforms and FPSOs (Floating Production Storage and Offloading), weight is a critical constraint. Titanium valves are significantly lighter than their steel counterparts without sacrificing pressure integrity.Erosion Resistance: The high velocity of fluids in a DN50 (2-inch) control valve can lead to "cavitation erosion." Titanium's hardness and film stability resist this far better than copper-nickel alloys.

Understanding the Price Factors for DN50 Titanium ValvesA DN50 (2-inch) titanium alloy control valve typically carries a premium price tag compared to stainless steel. The cost is driven by several key variables:1. Grade of Titanium AlloyGrade 2 (Commercially Pure): The most common for offshore seawater service. It offers the best balance of weldability and corrosion resistance.Grade 5 (Ti-6Al-4V): Used when higher mechanical strength or higher pressure ratings (Class 600 and above) are required. This grade increases the price due to more complex machining.2. Actuation and Control AccessoriesThe "DN50" refers to the valve size, but the price is heavily influenced by the Actuator:Pneumatic Diaphragm: The standard for reliability in offshore zones.Electric Actuators: Preferred for remote platforms where instrument air is unavailable.Smart Positioners: Adding HART or Foundation Fieldbus protocols for "Industry 4.0" maintenance adds to the final quote.3. Pressure Rating (PN16 vs. Class 600)A PN16 (1.6 MPa) valve requires less raw material than a Class 600 (10.0 MPa) high-pressure valve. In offshore engineering, Class 150 and Class 300 are the most frequent specifications for DN50 lines.

Estimated Price Range for DN50 Titanium ValvesWhile precise pricing requires a technical datasheet (including  values and pressure drop requirements), the market for a high-quality Titanium Alloy DN50 Control Valve generally follows these brackets:Standard Grade 2 / PN16 / Pneumatic: $3,500 – $6,500 USD.High Pressure / Grade 5 / Smart Positioning: $8,000 – $15,000+ USD.Note: Raw titanium material costs fluctuate globally, affecting lead times and final quotes.

Technical Specifications for SourcingWhen requesting a quote for offshore use, ensure your RFQ (Request for Quotation) includes:Body Material: ASTM B367 Grade C2 or C5 (Castings).Trim Material: Solid Titanium or Ceramic-coated Titanium for abrasive fluids.Standard Compliance: API 609, ASME B16.34, or ISO 5208.Certifications: NACE MR0175 (for sour gas environments) and 3.1 Material Traceability.

ConclusionThe Titanium Alloy Control Valve DN50 price reflects its status as a "fit-and-forget" solution for offshore engineering. By eliminating the need for frequent replacements caused by saltwater corrosion, the Total Cost of Ownership (TCO) is significantly lower than that of cheaper steel alternatives.Are you designing a seawater cooling system or an offshore desalination unit? Contact our technical team for a custom quote based on your specific flow parameters and pressure requirements.

Do you still need to know or purchase the following control valve products:

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• Proximity switch

2026-04-29

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