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QJ50 / QJ80 Technical Data
Specifications, mounting dimensions and wiring in one PDF.
3 pages · English text / original bilingual drawings · Rev 1.0
Series reference imageBuchholz Relays
QJ50 / QJ80
DN50 / DN80 gas and oil-surge relays
Installed between tank and conservator. Gas collection, sampling and signal-memory options are selected in the order code.
Manufacturer: Shenyang Zhiyue Electric Technology Co., Ltd.
Pipe diameterDN50 / DN80
Gas accumulation250–300 mL
TECHNICAL DATA
Key specifications
- Pipe diameter
- DN50 / DN80
- Gas accumulation
- 250–300 mL
- Oil velocity setting
- Diameter-specific; see table
- Operating temperature
- −40 to +100 °C
| Pipe | Setting range | Factory setting |
|---|---|---|
| DN50 | 0.6–1.2 m/s | 0.8 ± 0.1 m/s |
| DN80 | 0.7–1.5 m/s | 1.0 ± 0.1 m/s |
Dimensions and contact arrangements vary by configuration. Confirm the complete order code and approved drawing before ordering.
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Listed models and order-code examples identify configurations within this series.
ENGINEERING REVIEW
Technical documents
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