ZJQ Series Roots Booster Vacuum Pumps
ZJQ Roots booster vacuum pumps, nominal 300–3750 L/s (1,080–13,500 m³/h), DN160–DN400 inlets, offered across several rotational speeds so the booster can be matched to the backing pump instead of throttled. Model number is the nominal speed in L/s.
Model specifications
8 unique models · 8 configurations. Open a model to compare its available configurations.
ZJQ300Capacity1,080 m³/hMotor range4 kWQuote this model →
| Model | Capacity (m³/h) | Motor (kW) | Speed (rpm) | Port |
|---|---|---|---|---|
| ZJQ300 | 1,080 | 4 | 1,500 | 160 mm |
ZJQ450Capacity—Motor range5.5 kWQuote this model →
| Model | Capacity (m³/h) | Motor (kW) | Speed (rpm) | Port |
|---|---|---|---|---|
| ZJQ450 | — | 5.5 | 450 | — |
ZJQ600Capacity2,160 m³/hMotor range7.5 kWQuote this model →
| Model | Capacity (m³/h) | Motor (kW) | Speed (rpm) | Port |
|---|---|---|---|---|
| ZJQ600 | 2,160 | 7.5 | 600 | 200 mm |
ZJQ900Capacity—Motor range11 kWQuote this model →
| Model | Capacity (m³/h) | Motor (kW) | Speed (rpm) | Port |
|---|---|---|---|---|
| ZJQ900 | — | 11 | 900 | — |
ZJQ1200Capacity4,320 m³/hMotor range11 kWQuote this model →
| Model | Capacity (m³/h) | Motor (kW) | Speed (rpm) | Port |
|---|---|---|---|---|
| ZJQ1200 | 4,320 | 11 | 1,200 | 250 mm |
ZJQ1800Capacity6,480 m³/hMotor range15 kWQuote this model →
| Model | Capacity (m³/h) | Motor (kW) | Speed (rpm) | Port |
|---|---|---|---|---|
| ZJQ1800 | 6,480 | 15 | 1,500 | 320 mm |
ZJQ2500Capacity9,000 m³/hMotor range18.5 kWQuote this model →
| Model | Capacity (m³/h) | Motor (kW) | Speed (rpm) | Port |
|---|---|---|---|---|
| ZJQ2500 | 9,000 | 18.5 | 2,500 | 400 mm |
ZJQ3750Capacity13,500 m³/hMotor range30 kWQuote this model →
| Model | Capacity (m³/h) | Motor (kW) | Speed (rpm) | Port |
|---|---|---|---|---|
| ZJQ3750 | 13,500 | 30 | 1,500 | 400 mm |
How we verify a bolt-on replacement
The quotation follows a drawing-led check before you place an order.
Send the original model
Share the nameplate model and your required duty.
We check the interface
We verify flange size and orientation, foundation bolt pattern and shaft height, then send the equivalent model and outline drawing.
You confirm before quotation
You review the drawing; after confirmation, we prepare the quotation.
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.
Confirm the drawing before you order
Send the original model and duty. We will return the equivalent selection, outline drawing and performance curve with the quotation.