TECHNICAL DATA SHEET
Product: Close Die Forged Gate Valve
Ölçü: 1/2 inch (DN15)
Təzyiq dərəcəsi: Class 300
Korpus materialı: F53 (Super Duplex Stainless Steel – UNS S32750)
Design: Close Die Forged, Bolted Bonnet, Rising Stem
- Basic Specifications
Parametr | Value |
Nominal Ölçü | 1/2″ (DN15) |
Təzyiq dərəcəsi | Class 300 (PN 50) |
Vana növü | Gate Valve – Rising Stem, Solid Wedge |
Bədən Konstruksiyası | Close Die Forged, Bolted Bonnet |
End Connections | NPT Female (ASME B1.20.1) / Socket Weld (ASME B16.11) / Flanged (ASME B16.5 Class 300) as specified |
Temperatur Aralığı | –29°C ~ +250°C (depending on packing) |
Suitable Media | Seawater, sour gas (H₂S/CO₂), chlorides, acids, high‑pressure oil & gas, chemical fluids |
Flow Direction | Bidirectional |
- Main Features
- Close Die Forged Body: Precision forged construction ensures superior mechanical strength, uniform grain structure, and freedom from porosity. Ideal for high‑pressure and cyclic loading applications.
- F53 Super Duplex Stainless Steel: Provides exceptional resistance to pitting, crevice corrosion, and stress corrosion cracking (SCC) in chloride‑containing environments. High tensile strength and excellent fatigue resistance.
- Rising Stem Design: Stem rises as valve opens, providing visual indication of valve position.
- Solid Wedge Gate: Provides positive shut‑off; wedge geometry ensures tight sealing even under thermal cycling and pressure fluctuations.
- Bolted Bonnet: Allows easy access for maintenance and packing replacement.
- Blowout‑Proof Stem: Stem is designed to prevent ejection under pressure.
- Compact Design: Small footprint suitable for tight installations, instrumentation panels, and high‑density piping systems.
- Material List (Specified Configuration)
Item | Part | Material |
1 | Bədən | F53 (Super Duplex Stainless Steel – UNS S32750) – Close Die Forged |
2 | Bonnet | F53 (Super Duplex Stainless Steel) – Forged |
3 | Wedge (Gate) | F53 + optional Stellite 21 hardfacing (seat contact surfaces) |
4 | Kök | F53 / F55 (Super Duplex) or Inconel 718 |
5 | Seat Rings | Integral with body (or threaded F53) |
6 | Packing | PTFE (standard) / Flexible Graphite (high‑temp) |
7 | Gasket | Spiral Wound, F53 + Graphite / PTFE |
8 | Bolting | ASTM A193 B8M (316 stainless steel) or A453 Grade 660 |
9 | Handwheel | Stainless Steel / Carbon Steel (coated) |
Note: F53 (UNS S32750) offers PREN (Pitting Resistance Equivalent Number) ≥ 40, ideal for offshore and seawater service.
- Dimensions & Structural Data
Parametr | Value |
Face‑to‑Face Length (L) | ~60 – 70 mm (per ASME B16.10 for Class 300 gate valves) |
End Connections | 1/2″ NPT Female (ASME B1.20.1) – standard |
Overall Height (Open) | ~150 – 180 mm |
Stem Diameter | ~10 – 12 mm |
Handwheel Diameter | ~70 – 90 mm |
Approx. Weight | ~1.0 – 1.8 kg (depending on end connection) |
Note: Final dimensions to be confirmed by manufacturing drawings.
- Design & Testing Standards
Item | Standart |
Design & Manufacture | API 602 (for small bore forged valves), ASME B16.34 |
End Connections | ASME B1.20.1 (NPT), ASME B16.11 (SW), ASME B16.5 (Flanged) |
Pressure‑Temperature Rating | ASME B16.34 |
NACE Compliance | NACE MR0175 / ISO 15156 (for sour service) |
Pressure Testing | API 598 or ISO 5208 |
Low‑Pressure Air Test | 0.6 MPa (6 bar) – no visible leakage |
High‑Pressure Hydrostatic Test | 1.5 × rated pressure (body), 1.1 × rated pressure (seat) |
- F53 Super Duplex Stainless Steel Advantages
Property | Benefit |
Corrosion Resistance | Excellent resistance to pitting, crevice corrosion, and stress corrosion cracking in chloride and sour environments (PREN ≥ 40) |
High Strength | Yield strength > 550 MPa – approximately twice that of 316 stainless steel |
Sour Service | NACE MR0175 compliant for H₂S/CO₂ environments |
Seawater Service | Ideal for marine and offshore applications due to high resistance to chloride attack |
Fatigue Resistance | Superior performance under cyclic pressure and thermal loading |
- Close Die Forging Advantages
Feature | Benefit |
Grain Structure | Uniform and continuous grain flow follows part contours, increasing strength |
Density | No porosity or voids common in castings |
Mechanical Properties | Higher tensile strength and impact resistance compared to cast equivalents |
Pressure Integrity | Superior performance under high‑pressure and cyclic loading |
Surface Finish | Smooth surface reduces stress concentration points |
- Operating Guidelines
- Stem Operation: Rising stem provides clear visual indication of open/closed position. Turn handwheel clockwise to close.
- Packing Adjustment: If leakage occurs at the stem, lightly tighten the packing gland nuts. Do not overtighten.
- Axın istiqaməti: Gate valves are bidirectional; no specific flow orientation required.
- Material Compatibility: F53 is suitable for seawater, chlorides, and sour gas. Avoid use in reducing acids (e.g., hydrochloric) unless verified.
- Typical Applications
- Offshore Platforms: Seawater injection systems, topside piping, firewater systems.
- Subsea Equipment: Subsea manifolds, Christmas trees, and umbilical termination units.
- Oil & Gas: Sour gas production (H₂S/CO₂), wellhead control panels, high‑pressure test manifolds.
- Chemical Processing: Chloride‑containing environments, acetic acid, and organic acid service.
- Desalination Plants: Reverse osmosis systems, high‑pressure seawater lines.
- Marine: Shipboard piping systems, ballast water treatment.
- Alternative Configurations
Option | Təsvir |
End Connections | NPT Female (standard), Socket Weld, or Flanged (ASME B16.5 Class 300) |
Packing Material | PTFE (standard) for general service; Flexible Graphite for high‑temperature up to 250°C |
Hardfaced Wedge | Stellite 21 hardfacing for abrasive or high‑cycle service |
NACE Compliance | Materials and manufacturing per NACE MR0175 for sour service |
Stem Material Upgrade | Inconel 718 for enhanced corrosion resistance and high‑strength applications |
- Ordering Information
When ordering, please specify:
- Size: 1/2″
- Pressure Rating: Class 300
- Body Material: F53 (Super Duplex Stainless Steel)
- End Connections: NPT / Socket Weld / Flanged
- Packing Type: PTFE or Graphite
- Optional Features: NACE MR0175, hardfaced wedge, certification requirements (e.g., material test reports, PMI, hydrostatic test)
This data sheet reflects the 1/2″ – 300LB F53 Close Die Forged Gate Valve configuration. For specific material grades, end connection details, or additional testing requirements, please contact us with your project specifications.
ZƏMANƏT:
SAVVY VALVES müstəsna məhsul keyfiyyəti və narahatlıqsız satış sonrası xidmət göstərməyə sadiqdir. Bizim klapanlarımıza minimum 12 ay xidmət müddətinə zəmanət verilir, bu müddət ərzində biz bütün zəruri ehtiyat hissələri və ətraflı texniki xidmət təlimatlarını pulsuz təmin edəcəyik. Zəmanət müddəti ərzində insan tərəfindən törədilməmiş hər hansı zədə baş verərsə, biz komponentləri heç bir ödəniş etmədən əvəz edəcəyik və peşəkar texniki dəstək göstərəcəyik. Zəmanət müddəti bitdikdən sonra müştərilər endirimli texniki xidmətlərdən yararlanmaqla yanaşı, yalnız ehtiyat hissələrinin dəyərini ödəməlidirlər. Məqsədimiz etibarlı keyfiyyət və hərtərəfli satış sonrası dəstək vasitəsilə müştərilərə əməliyyat xərclərini azaltmaq və istehsal səmərəliliyini artırmaqda kömək etməkdir. İstər texniki sorğular, istərsə də texniki xidmət tələbləri üçün mütəxəssis komandamız klapan sisteminizin hər zaman optimal işləməsini təmin etmək üçün dərhal cavab verəcəkdir.