| Model / Parameter | VJP-150 | VJP-250 | VJP-500 | VJP-1000 | VJP-2000 |
|---|---|---|---|---|---|
| Pumping Speed (m³/h) | 153 | 253 | 505 | 1000 | 2050 |
| Partial Pressure (Pa) | 0.05 | 0.05 | 0.05 | 0.05 | 0.05 |
| Total Pressure (Pa) | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 |
| Max Allowable ΔP (Pa) | 8000 | 8000 | 8000 | 8000 | 5000 |
| Inlet/Outlet Port Dia. (mm) | 65 (70) | 65 (70) | 65 (70) | 100 | 150 |
| Max Compression Ratio (K0.max) | ≥ 35 | ≥ 35 | ≥ 40 | ≥ 40 | ≥ 50 |
| Noise Level Lw dB(A) | 63 | 63 | 63 | 68 | 75 |
| Oil Capacity (L) | 1.5 | 1.5 | 3.0 | 5.0 | 7.0 |
| Motor Power (kW) | 1.1 | 1.1 | 2.2 | 4.0 | 7.5 |
| Motor Speed (r/min) | 3000 | 3000 | 3000 | 3000 | 3000 |
| Cooling Method | Natural Air | Natural Air | Natural Air | Natural Air | Natural Air |
| Net Weight (kg) | 90 | 100 | 155 | 233 | 465 |
| Recommended Backing Pump | V-63 / 2X-8 | V-100 / 2X-15 | V-160 / 2X-30 | VR302 / V-302 / 2X-70 / 2BVA5121 | V630 (2× 2X-70) / 2× 2BVA5161 |
Precision-machined lobed rotors operate with zero internal friction or oil contact inside the pumping cavity, keeping vacuum process gas streams completely free of hydrocarbon vapor backstreaming.
Equipped with an internal spring-loaded bypass valve that automatically protects the 7.5 kW motor from thermal and mechanical overload when differential pressure exceeds 5000 Pa during roughing.
Dynamically balanced figure-eight rotors and precision helical timing gears maintain smooth rotation with low acoustic output (≤75 dB) during continuous 24/7 industrial operation.
Delivers high maximum compression ratios (K0.max ≥ 50) with low power consumption. Supports customizable 3-phase electric motors (220V/380V/415V/480V, 50Hz/60Hz) and horizontal/vertical installation.
Essential booster for high-vacuum induction melting, vacuum degassing, sintering, and optical thin-film coating systems requiring high volumetric extraction speed.
Widely applied in industrial vacuum distillation, concentration, evaporation, and vacuum drying processes, maintaining clean process streams free of hydrocarbon contamination.
Supports large-scale food freeze-drying, bio-pharmaceutical processing, transformer vacuum impregnation, and industrial dust extraction systems.
Must operate in series with primary backing pumps. Recommended systems include V630 Rotary Vane Pump, dual 2X-70 Rotary Vane Pumps, or dual 2BVA5161 Liquid Ring Pumps for moist gas streams.
A: The VJP-2000 booster must be paired with an appropriate backing pump. Recommended setups include a single V630 rotary vane pump, dual 2X-70 rotary vane pumps, or dual 2BVA5161 liquid ring pumps when handling vapor-laden or humid process gas streams.
A: The integrated spring-loaded bypass valve opens automatically when the differential pressure between the inlet and outlet exceeds 5000 Pa. By equalizing pressure during roughing phases, it prevents the 7.5 kW motor from overheating or tripping.
A: No, Roots vacuum pumps are positive displacement boosters and cannot exhaust directly to atmospheric pressure. They require a backing vacuum pump (such as a rotary vane or liquid ring pump) to reach operating vacuum pressures.
Get custom OEM configurations, detailed technical CAD drawings, and quick wholesale quotations within 12 hours.
