2″-2500LB-RTJ Close Die Forged Gate Valve

2″-2500LB-RTJ Close Die Forged Gate Valve – Technical Data Sheet

1. Main Parts & Materials (Close Die Forged)

2. Dimensions & Weight (Class 2500, RTJ, ASME B16.10)

Note: RTJ flange faces are grooved; no raised face. Dimensions follow typical Class 2500 flange dimensions per ASME B16.5.

3. Close Die Forging Advantages

• Superior Mechanical Properties – Uniform, dense grain structure without porosity, inclusions, or shrinkage defects.
• High Strength – Ideal for extreme pressures up to Class 2500 (42 MPa).
• Excellent Toughness – A105N normalizing improves low‑temperature impact resistance.
• Leak‑Free Integrity – Forged body eliminates weld seams and casting defects.

4. Performance Features

1. High Pressure / High Temperature Capability – Designed and tested for Class 2500 service, suitable for steam, boiler feedwater, and high‑pressure hydrocarbon lines.
2. RTJ Connection – Ring type joint ensures metal‑to‑metal seal, ideal for high‑pressure and high‑temperature applications where spiral wound gaskets may fail.
3. OS&Y (Rising Stem) – Stem threads are outside the pressure boundary, protecting them from media corrosion and allowing visual position indication.
4. Hardfaced Trim (Stellite) – Gate and seat rings have Stellite overlay for wear resistance and long cycle life in severe service.
5. Flexible Graphite Packing – Provides low emission performance, suitable for steam and thermal cycling.
6. Close Die Forged Body – No castings, no porosity; fully traceable material.

5. アプリケーション

• Power plants (high‑pressure steam, boiler isolation)
• Oil & gas production (wellheads, manifold, high‑pressure pipelines)
• Refineries and petrochemical plants (high‑temperature hydrocarbon service)
• Hydraulic systems (extreme pressure)
• Chemical processing (with appropriate material upgrade to stainless or alloy)

6. Testing & Compliance

7. Actuation Options (Beyond Standard Handwheel)

8. Ordering Information

Please specify:

• Valve size: 2″
• Pressure rating: Class 2500
• End connection: RTJ (ring type joint)
• Body material: A105N / F22 / F316
• Trim: API 602 Trim 8 (13Cr + Stellite) or other
• Operation: Handwheel / Gear / Pneumatic / Electric
• Special requirements: NACE MR0175, low‑emission packing, positive material identification (PMI), etc.

Notes:

• Close die forging ensures the highest integrity for Class 2500 service. A105N provides good toughness at low temperatures.
• RTJ gaskets (e.g., oval or octagonal rings) are required for assembly – not included with valve unless specified.
• Dimensions and weights are typical; final values depend on manufacturer and specific design (e.g., full bore or reduced bore).
• For high‑temperature applications above 425°C, upgrade to F22 (chrome‑moly) or F91 material.

保証:

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