ZJ70
ZJ Series Roots Booster Vacuum Pumps — dimension-compatible replacement for the original Nash/SIHI machine.
1 configuration listed for this model.
ZJ70Capacity252 m³/hMotor range1.5 kWQuote this model →
| Model | Capacity (m³/h) | Motor (kW) | Port |
|---|---|---|---|
| ZJ70 | 252 | 1.5 | 80 mm |
We verify flanges, bolt pattern and shaft height against the original drawing; if it doesn't match, we don't quote.
Spare parts for ZJ70
Wear parts we supply for this frame, with typical service life. Send the model and serial (or a nameplate photo) and we confirm each part against the original drawing.
| Part | Class | Typical interval |
|---|---|---|
| Impeller | Wear part | 2–5 years |
| Pump casing | Semi-wear | 5–10 years |
| Head / Cover | Semi-wear | 5–10 years |
| Mechanical seal | Wear part | 1–2 years |
| Gland packing | Wear part | 6–12 months |
| Bearing | Wear part | 2–3 years |
| Shaft | Semi-wear | 8+ years |
| Shaft sleeve | Wear part | 2–4 years |
| Coupling | Semi-wear | 5 years |
| Coupling element | Wear part | 1–2 years |
| Gasket set | Wear part | Every overhaul |
| O-ring kit | Wear part | Every overhaul |
| Check valve | Wear part | 3–5 years |
| Repair kit | Kit | Every overhaul |
Request spare parts for ZJ70 → · Full parts catalogue
What you get with the quotation
Tell us the duty point (capacity, suction pressure, seal-liquid temperature) and we return, normally within one working day:
- Performance curve — capacity against suction pressure at your seal-liquid temperature — not a catalogue figure
- Dimensional outline drawing — flanges, bolt pattern, shaft height, so you can check the fit before ordering
- Material specification — wetted-part materials for your gas and liquid, with certificates on delivery
- Utility figures — seal-liquid flow and motor rating, for sizing the supply and the starter
If the drawing does not match your original, we say so and do not quote.