Yokogawa DY
涡街 | 液体 ±0.75% 读数；气体/蒸汽 ±1.0% | DN 15 ~ 300 mm
Key Specifications
| Brand | Yokogawa |
|---|---|
| Model | DY |
| Category | Flow Meters |
| Measuring principle | 涡街 |
| Application | 蒸汽/气体/液体流量测量（蒸汽计量主力） |
| Accuracy | 液体 ±0.75% 读数；气体/蒸汽 ±1.0% |
| Repeatability | ±0.1% |
| Flow range | 取决于口径 |
| Nominal diameter | DN 15 ~ 300 mm |
| Turndown ratio | 高（涡街类典型 10:1~25:1） |
| Pressure loss | 中等（旋涡发生体） |
| Straight pipe requirement | 前 10 管径 / 后 5 管径 |
| Wetted materials | 316L SST |
| Liner material | 无衬里 |
| Media temperature | -40 ~ +450 ℃（高温型） |
| Max static pressure | PN100 级 |
| Media conductivity | 不要求 |
| Communication protocol | HART |
| Output signal | 4-20 mA HART + 脉冲 |
| Power supply | 两线制/三线制 |
| SIL rating | SIL 2 |
| Explosion protection | Ex d IIC T6 / Ex ia |
| IP rating | IP66/67 |
| Self-diagnostics | SSP 频谱信号处理（抗振） |
Data Sources
- Product page: https://www.yokogawa.com/cn/solutions/products-and-services/measurement/flow/
- Datasheet: https://www.yokogawa.com/library/gs-dy/
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