A182 F22 Welded Body Y-pattern Globe Valve
Description
TECHNICAL DATA SHEET (TDS)
ITEM: WELDED BODY Y-PATTERN GLOBE VALVE
1. GENERAL SPECIFICATIONS
| Parameter | Value |
|---|---|
| Valve Type | Y-Pattern Globe Valve |
| Connection Type | Butt Weld Ends (BWE) |
| Size | 2 inch (DN50) |
| Pressure Class | ASME 900LB (Class 900) |
| Design Standard | ASME B16.34 |
| Temperature Range | -29°C to +593°C |
| Operation | Handwheel/Gearbox/Actuator (Optional) |
2. MATERIAL SPECIFICATION
| Component | Material Standard | Grade |
|---|---|---|
| Body/Bonnet | ASTM A182 | F22 (Chrome-Molybdenum Steel) |
| Disc | ASTM A182 | F22 or F6a |
| Seat Ring | ASTM A182 | F6a + Stellite Hardfacing |
| Stem | ASTM A182 | F6a or 17-4PH SS |
| Stem Packing | Flexible Graphite + 316SS Braid | — |
| Gasket | Spiral Wound Gasket | 304/316 + Graphite |
3. DESIGN & PERFORMANCE
| Feature | Requirement |
|---|---|
| Design Pressure | Per ASME B16.34 Class 900 Rating |
| Seat Leakage Class | API 598 / ISO 5208 Class IV (Zero Leakage Optional) |
| Flow Direction | Flow Under Plug (Standard) |
| Face-to-Face Length | ASME B16.10 |
| Weld End Preparation | ASME B16.25 (Bevel Details) |
| Pressure Test | API 598 |
| Hydro Test Pressure | Shell: 37.9 MPa / Seat: 27.6 MPa |
4. TEMPERATURE-PRESSURE RATING (ASME B16.34)
| Temp. (°C) | Max. W.P. (MPa) | Max. W.P. (psi) |
|---|---|---|
| 38 | 15.3 | 2,220 |
| 100 | 15.3 | 2,220 |
| 200 | 14.1 | 2,045 |
| 300 | 12.8 | 1,855 |
| 400 | 11.2 | 1,625 |
| 500 | 8.6 | 1,245 |
| 593 | 5.3* | 770* |
*With material certification
5. SPECIAL REQUIREMENTS
-
Heat Treatment: Quenched & Tempered (Q&T), Hardness ≤22 HRC
-
Weld Repair: Pressure-containing parts per ASME Section VIII Div.1
-
NACE MR0175/ISO 15156: Compliant for sour service (if specified)
-
Fire-Safe Design: API 607/API 6FA (on request)
-
Seat Hardfacing: Stellite ≥2mm thickness
6. INSPECTION & CERTIFICATION
-
NDE: 100% Radiographic Testing (RT) per ASME Sec. V
-
Certificates: MTC with Traceability, PMI Report, NDE Reports
-
Marking: Permanent identification per MSS SP-25
7. APPLICATIONS
Severe service in petrochemical, power generation (supercritical units), high-temperature steam systems.
NOTES:
-
Final design subject to process conditions review.
-
Stress analysis report (FEA per ASME Section III Div.1) and seismic certification available upon request.
-
Body cavity pressure relief design per ASME B16.34 Appendix III (optional).
