TECHNICAL DATA SHEET
Product: 2-Piece Metal Seated Ball Valve
مقاس: DN50 (2 inch)
تصنيف الضغط: PN100 (Class 600)
Body Construction: 2-Piece, Floating Ball
Seat Type: Metal‑to‑Metal
End Connections: Flanged (EN 1092‑1 / ASME B16.5)
- Basic Specifications
المعلمة | Value |
الحجم الاسمي | DN50 (2″) |
تصنيف الضغط | PN100 (Class 600) |
نوع الصمام | 2-Piece Floating Ball Valve |
بناء الجسم | 2-Piece (Body + End Cap) |
End Connections | Flanged – EN 1092‑1 PN100 or ASME B16.5 Class 600 (RF / RTJ) |
نطاق درجة الحرارة | –29°C ~ +500°C (depending on hardfacing) |
Suitable Media | High‑temperature steam, thermal oil, corrosive fluids, high‑pressure gas/liquid, abrasive slurries |
Fire Safe Design | API 607 / ISO 10497 (inherently fire‑safe due to metal seats) |
- Main Features
- Metal‑to‑Metal Seating: Ball coated with tungsten carbide (WC) or Stellite; seat hardfaced with Stellite alloy. Provides exceptional wear, erosion, and high‑temperature resistance.
- 2-Piece Body: Compact construction, easy maintenance. The body joint is secured with high‑strength bolting.
- Floating Ball Design: 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 pressure.
- Fire Safe: Metal seated construction inherently meets fire‑safe requirements without additional coatings.
- Spring‑Loaded Seats (Optional): Pre‑loaded seats maintain continuous contact with the ball, ensuring reliable sealing even at low pressure or under thermal cycling.
- Material List (Recommended High‑Temperature / High‑Pressure Configuration)
Item | Part | Standard Material |
1 | جسم | A105N / F316 (ASTM A182) |
2 | End Cap | A105N / F316 |
3 | كرة | A105N / 316SS + Tungsten Carbide (WC) Coating |
4 | Seat Rings | 316SS + Stellite 21 Hardfacing |
5 | ينبع | 17‑4PH / Inconel 718 |
6 | Stem Packing | Flexible Graphite + Braided Graphite |
7 | Body Gasket | Spiral Wound, SS + Graphite |
8 | Bolting | A193 B7 / A194 2H (carbon steel) or B8 / B8M (stainless steel) |
9 | Seat Springs (if applicable) | Inconel X‑750 / 17‑7PH |
Note: NACE MR0175 compliant materials available for sour service.
- Dimensions & Structural Data (Flanged Ends)
المعلمة | Value |
Face‑to‑Face Length (L) | ~230 mm (per EN 558 / ASME B16.10 for PN100 / Class 600) |
Flange Standard | EN 1092‑1 PN100 or ASME B16.5 Class 600 |
Flange Facing | Raised Face (RF) or Ring Type Joint (RTJ) |
Top Height (H) | ~160 – 180 mm (with hand lever) |
Operating Torque | ~80 – 150 N·m (metal seated, floating ball) |
Approx. Weight | ~12 – 18 kg (flanged version) |
Note: Final dimensions to be confirmed by manufacturing drawings.
- Design & Testing Standards
Item | معيار |
Design & Manufacture | ASME B16.34 / EN 12516 / API 608 |
Flanged End Connections | EN 1092‑1 or ASME B16.5 |
Pressure‑Temperature Rating | ASME B16.34 / EN 1092‑1 |
Fire Safe Test | API 607 or API 6FA |
Pressure Testing | API 598 or ISO 5208 |
Low‑Pressure Air Test | 0.6 MPa (6 bar) – allowable leakage per API 598 (metal seated) |
High‑Pressure Hydrostatic Test | 1.5 × rated pressure (body), 1.1 × rated pressure (seat) |
- Metal Seated vs. Soft Seated Comparison
Feature | Metal Seated | Soft Seated (PTFE / PEEK) |
نطاق درجة الحرارة | –29°C ~ +500°C | –196°C ~ +260°C |
Leakage Rate | API 598 Class V / VI (low, not bubble‑tight) | Bubble‑tight (zero leakage) |
Abrasion Resistance | Excellent | Poor |
Fire Safety | Inherently fire‑safe | Requires API 607 certification |
Operating Torque | Higher | Lower |
Suitable Media | High‑temp, steam, slurry, abrasive fluids | Clean fluids, cryogenic, chemicals |
- Operating Torque & Actuator Sizing
- Higher Torque Requirement: Metal seated valves typically require higher torque than soft seated valves due to metal‑to‑metal contact and spring preload.
- Floating Ball Effect: In floating ball designs, torque increases with differential pressure as the ball is pressed against the downstream seat.
- High‑Temperature Impact: Thermal expansion increases torque at elevated temperatures.
- Safety Factor: Actuator output torque should be at least 1.3 – 1.5 times the maximum measured valve torque.
- Typical Applications
- Refineries: Fluid catalytic cracking (FCC) units, coker units, high‑temperature hydrocarbon service.
- Power Plants: Boiler feedwater, main steam systems.
- Thermal Oil Systems: High‑temperature heat transfer fluid circuits.
- Chemical Processing: Corrosive fluids at elevated temperatures, slurry handling.
- Coal Chemical: Black water, ash water, catalyst lines.
- Ordering Information
When ordering, please specify:
- الحجم: DN50
- Pressure Rating: PN100 (Class 600)
- Body Material: A105N / F316 / other
- End Connections: Flanged (specify standard: EN 1092‑1 or ASME B16.5, facing type)
- Hardfacing: Tungsten Carbide / Stellite 21 / other
- Optional Features: NACE MR0175, spring‑loaded seats, pneumatic/electric actuator, locking device
This data sheet reflects the DN50 – PN100 2-Piece Metal Seated Ball Valve with flanged end connections. For specific dimensions, torque curves, or actuator sizing support, please contact us with your detailed requirements.
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.