Project snapshot
2 nosQuantity
DN150 / 6"Size
PN10Max working
Gear + HWOperation
WaferEnd connection
72 mmFace-to-face
Technical specifications
Source: techno-commercial quotation Rev.1, valve datasheet, and General Arrangement Drawing No. AQ-25-26-2650.
| Parameter | Specification |
|---|---|
| Valve type | Concentric disc butterfly valve, fluoropolymer lined |
| Size | 6 IN (DN150 / 150 mm nominal bore) |
| Pressure rating | ASME Class 150 flange drilling; PN10 (10 bar / 150 psi) max working — soft-lining limited |
| Body | Ductile Iron ASTM A395 (65-45-12), virgin PTFE lined (integral seat on wetted surfaces) |
| Disc / trim | Stainless Steel SS304 (ASTM A351 Gr. CF8), fully PFA (virgin fluoropolymer) encapsulated — media contacts PFA only |
| Stem / shaft | Stainless Steel ASTM A276 Type 304, blow-out proof |
| Lining / seat | Body: virgin PTFE | Disc: virgin PFA encapsulation |
| Stem seals | PTFE / PTFE V-ring packing, adjustable gland |
| Backup / bush | Silicone backup rubber; PTFE gland bush & backup bush (per GAD) |
| Face-to-face | 72 mm (MSS SP-67 / EN 558) — achieved with spacer / extension rings |
| End connection | Wafer (flangeless) between ANSI B16.5 Class 150 RF flanges (XLD11 configuration) |
| Flange bolting | 8 × 3/4 IN per ANSI B16.5 Class 150, NPS 6 |
| Disc clearance | Min mating pipe ID 145 mm (5.7 IN); disc projection 49 mm beyond flange face; spacers at tee / elbow |
| Flow direction | Bidirectional — install independent of flow direction |
| Operation | Enclosed gear operator (SGI gearbox) with handwheel; position indicator & adjustable travel stops |
| Design standard | API 609 Category B / BS EN 593; ANSI B16.5 Class 150; GAD also references API 609 / BS 5155 |
| Temperature | Design −10 °C to +200 °C (PTFE / PFA lining rated to +260 °C subject to media) |
| Leakage class | Class VI (per GAD); factory bubble-tight shutoff |
| Testing | API 598 / BS EN 12266-1 — 100% hydrostatic shell & seat; primary stem seal zero atmospheric leakage |
| Hydro test (GAD) | Body 16 kg/cm² · Seat 10 kg/cm² · Pneumatic 6 kg/cm² |
| Certification | MTC EN 10204 3.1 for body material; factory hydrostatic / test certificate |
| Drawing | General Arrangement Drawing No. AQ-25-26-2650 (wafer 150 mm) |
| Quantity | 2 Nos |
Dimensional data (GAD AQ-25-26-2650)
| Dimension | Value |
|---|---|
| Size / port | 150 mm / Port 150 mm |
| Face-to-face L | 72 mm (±2 mm) |
| Overall envelope A × B | 190 × 132 mm (±5 mm) |
| Flange PCD / bolt | PCD 241.5 mm · ØJ 22 mm · N = 8 |