TECHNICAL DATA SHEET
Product: 2-Piece Metal Seated Floating Ball Valve
Saiz: 2 inch (DN50)
Kelas Tekanan: Class 1500
Bahan Badan: A105N (Normalized Carbon Steel)
End Connections: Flanged (ASME B16.5)
- Basic Specifications
Parameter | Value |
Saiz Nominal | 2″ (DN50) |
Penilaian Tekanan | Class 1500 (PN250) |
Binaan Badan | 2-Piece |
Ball Type | Floating |
End Connections | Flanged – ASME B16.5 (RF or RTJ) |
Julat Suhu | –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 | bahan |
1 | Badan | A105N (Normalized) |
2 | Bonnet | A105N |
3 | bola | A105N + Tungsten Carbide (WC) Coating or 316SS + WC Coating |
4 | Seat Ring | 316SS + Stellite 21 Hardfacing |
5 | Batang | 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)
Parameter | 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 | Standard |
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.
JAMINAN:
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