3-Piece Stainless Steel Trunnion Ball Valve-PN25
Description
3-Piece Trunnion Mounted Ball Valve – Technical Datasheet
| Item | Specification |
|---|---|
| Model No. | Q347F-25P |
| Design & Manufacture | GB/T 12237, API 6D, BS 5351 |
| Valve Type | Three-Piece, Trunnion Mounted Ball |
| Body Material | CF8M (AISI 316) |
| Ball Material | 316 Stainless Steel (Hard Chrome Plated or Coated) |
| Stem Material | 316 Stainless Steel (Anti-Blowout Design) |
| Seat Material | 316 Stainless Steel + PTFE (Politetrafluoroethylene) |
| Stem Seal / Packing | Flexible Graphite + PTFE |
| Operation | Worm Gear Operator |
| Flange Connection | GB/T 9113, HG/T 20592, ASME B16.5, BS EN1092-1 |
| Pressure Rating | PN25 / Class150 |
| Test & Inspection | GB/T 13927, API 598, ISO 5208 |
| Shell Test Pressure | 3.8 MPa (PN38) |
| Seat Test Pressure (High Pressure) | 2.8 MPa (PN28) |
| Seat Test Pressure (Low Pressure / Air) | 0.6 MPa |
| Leakage Class | Grade A (GB/T 13927 / API 598 / ISO 5208) |
| Temperature Range | -29°C to +180°C (with PTFE Seat) |
| Applicable Media | Water, Steam, Oil, Acids, Alkalis, Corrosive Fluids |
| Fire Safe Design | Yes (Secondary Metal-to-Metal Seal) |
| Key Features | Trunnion Mounted Design, Anti-Static Device, Anti-Blowout Stem, Self-Pressure Relieving, Easy Maintenance |
Main Connection Dimensions (PN25) – Standard: HG/T 20592
| DN | Inch | L (mm) | D (mm) | K (mm) | n×φd | H≈ (mm) | D0 (Gear) |
|---|---|---|---|---|---|---|---|
| 50 | 2″ | 250 | 165 | 125 | 4×φ18 | 320 | 200 |
| 65 | 2.5″ | 270 | 185 | 145 | 4×φ18 | 350 | 200 |
| 80 | 3″ | 280 | 200 | 160 | 8×φ18 | 380 | 250 |
| 100 | 4″ | 300 | 220 | 180 | 8×φ18 | 450 | 300 |
| 125 | 5″ | 325 | 250 | 210 | 8×φ18 | 550 | 350 |
| 150 | 6″ | 350 | 285 | 240 | 8×φ22 | 650 | 400 |
| 200 | 8″ | 400 | 340 | 295 | 8×φ22 | 850 | 500 |
| 250 | 10″ | 450 | 395 | 350 | 12×φ22 | 1050 | 600 |
| 300 | 12″ | 500 | 445 | 400 | 12×φ22 | 1250 | 700 |
Note: Dimensions are for reference only. ‘L’ is face-to-face length, ‘H’ is approximate overall height (with gear). Final dimensions are subject to the manufacturer’s product drawing.
