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- WE and WO - Hengst maintenance indicator
WE and WO - Hengst maintenance indicator
Hengst WO series mechanical/optical maintenance indicators for monitoring filter differential pressure. The indicator signals when the filter element needs changing as the differential pressure reaches the set value. A memory function keeps the display active even after machine shut-off. An electronic switching element (WE) with one or two switching points is available as an accessory.
- Mechanical/optical pressure differential indicator (WO-D01), one switching point + memory function
- Pressure connection M20×1.5
- Brass housing, max operating pressure 450 bar
- Seal material NBR (M)
- Temperature range −30…+100 °C
- Mounting torque max 50 Nm
- Accessory: electronic switching element WE (1 or 2 switching points, M12×1 or EN 175301-803, 3-LED)
- WE switching element compatible with all WO indicators, independent of filter nominal pressure
| Code | Switching pressure | Seal material | Max. working press. (bar) | Package size (KPL) |
|---|---|---|---|---|
| HE-1009240B | 2,2 bar | NBR | 450 | 1 |
| HE-1000526B | 5,0 bar | NBR | 450 | 1 |