TECHNICAL DATA SHEET
Product: 2-Piece Metal Seated Floating Ball Valve
مقاس: 2 inch (DN50)
فئة الضغط: Class 1500
مادة الجسم: A105N (Normalized Carbon Steel)
End Connections: Flanged (ASME B16.5)
- Basic Specifications
المعلمة | Value |
الحجم الاسمي | 2″ (DN50) |
تصنيف الضغط | Class 1500 (PN250) |
بناء الجسم | 2-Piece |
Ball Type | Floating |
End Connections | Flanged – ASME B16.5 (RF or RTJ) |
نطاق درجة الحرارة | –29°C ~ +500°C (depending on hardfacing) |
Suitable Media | High-temperature steam, thermal oil, corrosive fluids, high-pressure gas/liquid |
Fire Safe Design | API 607 / ISO 10497 |
- Main Features
- Metal Seated: Ball coated with tungsten carbide or Stellite; seat hardfaced with Stellite alloy. Excellent wear, erosion, and high-temperature resistance.
- 2-Piece Body: Compact construction, easy maintenance. Body joint secured with high-strength bolting.
- Floating Ball: Under line pressure, the ball shifts slightly against the downstream seat, ensuring tight shut-off under high differential pressure.
- Blowout-Proof Stem: Stem is designed to prevent ejection under high-pressure conditions.
- A105N Body: Normalized carbon steel body provides improved toughness and grain structure, ideal for high-pressure and moderate high-temperature services.
- Material List (Specified Configuration)
Item | Part | مادة |
1 | جسم | A105N (Normalized) |
2 | Bonnet | A105N |
3 | كرة | A105N + Tungsten Carbide (WC) Coating or 316SS + WC Coating |
4 | Seat Ring | 316SS + Stellite 21 Hardfacing |
5 | ينبع | 17-4PH / Inconel 718 |
6 | Stem Packing | Flexible Graphite (Grafoil) + Braided Graphite |
7 | Body Gasket | Spiral Wound, SS + Graphite |
8 | Bolting | A193 B7 / A194 2H (Zinc plated) |
- Dimensions & Structural Data (Flanged Ends)
المعلمة | Value |
Face-to-Face Length (L) | ~292 mm (per ASME B16.10 for Class 1500 flanged valves) |
Flange Standard | ASME B16.5 Class 1500 |
Flange Type | Raised Face (RF) or Ring Type Joint (RTJ) |
Top Height (H) | ~250 mm (with hand lever) |
Operating Torque | ~200 – 350 N·m (varies with pressure; safety margin recommended) |
Approx. Weight | ~45 – 55 kg (flanged version heavier than SW/BW) |
Note: Final dimensions to be confirmed by manufacturing drawings.
- Design & Testing Standards
Item | معيار |
Design & Manufacture | API 608, API 6D, ASME B16.34 |
Flanged End Connections | ASME B16.5 |
Pressure-Temperature Rating | ASME B16.34 |
Fire Safe Test | API 607 or API 6FA |
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) |
- Operating Torque & Actuator Sizing Considerations
- Seat Preload: Spring-loaded metal seats add initial breakaway torque.
- High-Temperature Effects: Thermal expansion increases torque at elevated temperatures.
- Safety Factor: Actuator output torque should be at least 1.2 to 1.5 times the maximum measured valve torque.
- Typical Applications
- Refinery fluid catalytic cracking (FCC) units
- Power plant boiler feedwater and main steam systems
- High-temperature thermal oil circuits
- High-pressure natural gas transmission
- Coal chemical industry – ash water & black water service
This data sheet reflects the specified A105N body and flanged end connections. For further customization (e.g., NACE MR0175, special hardfacing, automation), please contact us.
ضمان:
تلتزم شركة سافي فالفز بتقديم منتجات عالية الجودة وخدمة ما بعد البيع مريحة. نضمن لصماماتنا عمر خدمة لا يقل عن ١٢ شهرًا، نوفر خلالها جميع قطع الغيار اللازمة وتعليمات الصيانة المفصلة مجانًا. خلال فترة الضمان، في حال حدوث أي ضرر غير بشري، نستبدل المكونات مجانًا ونقدم دعمًا فنيًا احترافيًا. بعد انتهاء الضمان، يدفع العميل فقط تكلفة قطع الغيار، مع الاستفادة من خدمات الصيانة المخفضة. هدفنا هو مساعدة عملائنا على خفض تكاليف التشغيل وتحسين كفاءة الإنتاج من خلال جودة موثوقة ودعم شامل لما بعد البيع. سواءً للاستفسارات الفنية أو احتياجات الصيانة، سيستجيب فريق خبرائنا على الفور لضمان الحفاظ على الأداء الأمثل لنظام صماماتك في جميع الأوقات.