Tanım
Super duplex stainless steel industrial valve
Süper Dubleks 2507 Küre Vana
A severe chloride-service valve material for seawater, açık deniz, desalination and aggressive process systems. The globe valve configuration is engineered for frequent isolation and regulated process flow.
What is a Super Duplex 2507 Küre Vana?
A Super Duplex 2507 Globe Valve combines a highly alloyed ferritic-austenitic stainless steel with high strength and strong resistance to chloride pitting, crevice corrosion and stress-corrosion cracking with a linear-motion design in which a disc or plug moves perpendicular to the seat for isolation or controlled throttling.
2507 requires disciplined material procurement, forming, kaynak, heat treatment and testing to preserve phase balance and corrosion performance. Pressure drop, cavitation, noise, hız, plug contour, flow direction and actuator sizing must be checked for throttling service.
Süper Dubleks 2507 Globe Valve specifications
| Ürün | Süper Dubleks 2507 Küre Vana |
|---|---|
| Valve construction | Bolted-bonnet T-pattern globe valve; Y-pattern or angle pattern as separate engineered options |
| Nominal material | Süper Dubleks 2507 |
| BİZ / EN reference | UNS S32750; EN 1.4410 |
| Product forms | Wrought ASTM A182 F53; project-approved ASTM A995/A890 cast grade selected by chemistry and properties; exact component specification required |
| Design standards | API 623 Ve ASME B16.34; API 602 for applicable compact forged designs |
| Pressure testing | API 598 or project-specified shell, backseat and closure testing |
| Basınç derecesi | ASME Class or PN rating verified against exact material, boyut, construction and design temperature |
| End connections | RF/RTJ flanged or butt-weld ends according to design |
| Operation | Handwheel, gearbox, pneumatic or electric actuator |
| Dokümantasyon | EN 10204 3.1 material records, pressure test report, GA drawing and project inspection records as ordered |
This is an engineered inquiry product, not a universal stock specification. Final availability depends on valve size, basınç sınıfı, material form, trim, seat system, operator, quantity and required code edition.
Süper Dubleks 2507 material selection
| Seçim noktası | Engineering guidance |
|---|---|
| Material profile | a highly alloyed ferritic-austenitic stainless steel with high strength and strong resistance to chloride pitting, crevice corrosion and stress-corrosion cracking |
| Why it is selected | High strength and high resistance to localized chloride corrosion when correctly manufactured and specified. |
| Tipik hizmet | Seawater injection, tuzdan arındırma, offshore topsides, brine and aggressive chloride-bearing process systems. |
| Limitations to check | Upper and lower service-temperature limits, hydrogen exposure, galvanic coupling and intermetallic precipitation require engineering review. |
| Specification route | Wrought ASTM A182 F53; project-approved ASTM A995/A890 cast grade selected by chemistry and properties; exact component specification required |
| Verification | 100 percent PMI where ordered, MTC and heat treatment review, ferrite testing plus specified ASTM A923, korozyon, impact and NDE requirements. |
Globe Valve design and standards
API 623
Common design basis for steel globe valves with flanged or butt-welding ends.
ASME B16.34
Basınç-sıcaklık, material and general valve requirements within scope.
API 598
Shell, backseat and closure pressure testing when specified.
IEC 60534
Relevant when the product is engineered as a control valve with defined sizing and performance requirements.
Body pattern, plug contour, seat/hardfacing, flow direction, paketleme, pressure drop and actuator thrust must reflect the actual regulating or isolation duty.
Fire-safe, fugitive-emission, sour-service, oksijen, cryogenic, chlorine and PED requirements apply only when explicitly defined and supported for the exact offered configuration.
Tipik uygulamalar
| Endüstri | Material service context | Valve selection focus |
|---|---|---|
| Açık denizde petrol ve gaz | Seawater injection, firewater and chloride-rich process systems | Pressure drop, plug/seat trim, cavitation, flow direction, leakage and operating thrust |
| tuzdan arındırma | High-chloride feed, brine and reverse-osmosis support systems | Pressure drop, plug/seat trim, cavitation, flow direction, leakage and operating thrust |
| Kimyasal işleme | Aggressive chloride and acidic streams after compatibility review | Pressure drop, plug/seat trim, cavitation, flow direction, leakage and operating thrust |
| Deniz mühendisliği | Seawater cooling and critical marine utility systems | Pressure drop, plug/seat trim, cavitation, flow direction, leakage and operating thrust |
Application examples are not a corrosion or design approval. The end user must verify process chemistry, kirleticiler, basınç, sıcaklık, hız, bisikletçilik, emissions and regulatory requirements.
Kalite, testing and traceability
Heat-number traceability and EN 10204 3.1 records matched to the ordered component specifications.
100 percent PMI where ordered, MTC and heat treatment review, ferrite testing plus specified ASTM A923, korozyon, impact and NDE requirements.
API 598 or project-specified shell, backseat and closure testing, with acceptance and leakage criteria stated on the order.
GA drawing, boyutlar, işaretleme, operation, pressure test and specified NDE/third-party records.
Teklif talebi kontrol listesi
- Valve design standard and required edition
- Nominal size and ASME Class or PN rating
- Exact material specifications for pressure boundary, trim, seats, packing and bolting
- T/Y/angle pattern, isolation or throttling duty, flow coefficient/process data and trim contour
- End connection, facing and face-to-face requirement
- Fluid composition, konsantrasyon, contaminants and solids
- Design and operating pressure/temperature
- PMI, korozyon testi, ÖYD, witnessing and document requirements
Sık sorulan sorular
How is super duplex 2507 different from duplex 2205?
2507 contains higher chromium, molybdenum and nitrogen and generally offers greater strength and localized-corrosion resistance. It also requires tighter fabrication and heat-treatment control.
öyle mi 2507 automatically suitable for all seawater service?
HAYIR. Sıcaklık, klorlama, yarıklar, mevduat, akış, galvanic couples and cathodic protection affect performance. The complete system must be reviewed.
What documentation should be requested?
Common requirements include EN 10204 3.1 records, PMI, heat-treatment evidence, ferrite results and specified corrosion, impact and NDE reports.
Can a globe valve be used for throttling?
Evet, but the plug contour, pressure drop, cavitation, noise, velocity and actuator requirements must be engineered for the actual process.
How does a globe valve differ from a gate valve?
A globe valve provides better regulation but higher pressure drop. A gate valve offers a straighter flow path and is mainly used for full-open/full-closed isolation.
Can Super Duplex 2507 be used for every component in this globe valve?
Not automatically. Pressure-boundary, trim, stem or shaft, seating, paketleme, gasket and bolting materials have different mechanical and corrosion duties. The complete bill of materials must be engineered for the service.
Related Super Duplex 2507 valve products
Need a broader comparison? View the general stainless steel and alloy globe valves guide or browse all Küresel Vanalar.
Request a Super Duplex 2507 Globe Valve quotation
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