Deskripsi
Pneumatic Extraction Swing Check Valve
Brand : Shanghai Baigang Valve Group Co., Ltd.
Detailed Specification – H664H-20-DN100
| Parameter | Details |
|---|---|
| Model | H664H-20-DN100 |
| Type | Pneumatic Extraction Swing Check Valve |
| Function | Prevents backflow in steam extraction lines; closes rapidly on turbine trip |
| Nominal Diameter | DN100 (4″) |
| Nominal Pressure | PN20 (≈ Class 150) |
| Medium | Steam, water, air, oil |
| Temperature Range | ≤550 °C |
| Material | Body: WCB / WC6 / WC9; Trim: Stainless Steel / Alloy Steel |
| Connection | Butt weld or flanged (ASME B16.5 / GB/T 9113) |
| Actuation | Pneumatic cylinder with quick exhaust valve and solenoid control |
| Closing Time | ≤0.5 seconds |
| Design Standards | ASME B16.34, JB/T3595, GB/T12224 |
| Inspection Standards | API 598, JB/T9092 |
Dimensional data for DN100 / PN20:
| Dimension | Value (mm) |
|---|---|
| L | 680 |
| D | 250 |
| D1 | 302 |
| D2 | 475 |
| H | 904 |
| H1 | 380 |
| H2 | 440 |
| Weight | ~385 kg |
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