6“ 1500LB Pneumatic Trunnion Mounted Ball Valve
Description
TRUNNION MOUNTED BALL VALVE – TECHNICAL DATA SHEET
Valve Model: Q347F-1500LB-RB (Example)
| Category | Specification |
|---|---|
| 1. General | |
| Valve Type | Trunnion Mounted Ball Valve (Reduced Bore) |
| Operation | Pneumatically Actuated (Single Acting, Spring Return) |
| Size | 6″ (DN 150) |
| Pressure Class | ASME 1500 LB (PN 260) |
| Bore Type | Reduced Bore (RB) · Equivalent Flow Diameter: 4″ (DN 100) |
| Design Standard | API 6D / ISO 17292 |
| 2. Design & Construction | |
| Body Type | Two-Piece Bolted Body Construction |
| Body Material | ASTM A216 Gr. WCB (Carbon Steel) |
| End Connections | Flanged per ASME B16.5 RF 1500 LB · Both Ends 6″ |
| Body Bolting | ASTM A193 Gr. B7 Studs / ASTM A194 Gr. 2H Nuts |
| Ball Material | ASTM A351 Gr. CF8M (316 SS) · Hardened & Polished (Ra ≤ 0.4 μm) |
| Stem Material | ASTM A276 Type 316 (316 SS) · Blowout-Proof Design |
| Seat Material | Reinforced PTFE (RPTFE) + 316 SS Backing Ring |
| Seat Design | Spring-Loaded · Fire-Safe per API 607/API 6FA |
| Stem Seals | PTFE/Viton Combination |
| Body Seals | Spiral Wound Graphite (API 6A) |
| Cavity Relief | Automatic (Standard Feature) |
| 3. Performance | |
| Max. Working Pressure | 1500 PSIG @ 100°F (38°C) · Elevated Temp: Ref. ASME B16.34 (e.g., 285 PSIG @ 800°F) |
| Temperature Range | Seat: -20°F to +400°F (-29°C to +204°C) · Body/Trim: -20°F to +800°F (-29°C to +425°C) |
| Leakage Class | Seat: ANSI FCI 70-2 Class VI · Stem: API 622 Class A |
| Flow Coefficient (Cv) | ~800-1000 (Approximate) |
| Flow Direction | Bi-Directional |
| Fluid Service | Water, Oil, Gas, Steam, General Corrosive Media (Excl. strong oxidizers/pure oxygen) |
| 4. Actuator | |
| Type | Pneumatic (Scotch-Yoke or Piston) |
| Fail Action | Specify: Fail-Closed (FC) or Fail-Open (FO) |
| Operating Pressure | 60-100 PSIG (4-7 bar) |
| Air Connection | 1/4″ NPT |
| Trip Speed | 5-15 seconds (90° travel) |
| Housing | Aluminum (IP67/NEMA 4) · Optional SS316 |
| 5. Testing & Certification | |
| Body Test | 1.5 × MWP Hydrostatic (API 598/6D) |
| Seat Test | 1.1 × MWP Hydrostatic (Bi-Directional) |
| Stem Seal Test | Helium Leak Test (API 622) |
| Fire Test | API 607/6FA (On Request) |
| Certification | MDR, CoC, MTRs |
| 6. Key Features | |
| • Reduced Bore Design: 4″ (DN 100) equivalent flow diameter | |
| • Two-Piece Body: Maintenance-friendly | |
| • Fire-Safe API 607: Secondary metal seal upon PTFE failure | |
| • Anti-Static Device (API 6D Standard) | |
| 7. Options | |
| • Locking Device · Gear Operator · Extended Bonnet | |
| • NACE MR0175/MR0103 (Sour Service) · Special Coatings (Internal Epoxy/External FBE) |
KEY NOTES:
-
Size Clarification: Inlet/outlet flanges: 6″ (DN 150) · Internal bore: Equivalent to 4″ (DN 100).
-
Flow Direction: Standard bi-directional capability (no flow asymmetry).
-
Actuator Sizing: Spring range designed for valve torque at 1500 PSIG differential pressure.
-
Certifications: Fire test (API 607/6FA) and sour service (NACE) available upon request.
