| Specification Parameter | VJP-150 | VJP-250 (Current Item) | VJP-500 | VJP-1000 | VJP-2000 |
|---|---|---|---|---|---|
| Pumping Speed (m³/h) | 153 | 253 | 505 | 1000 | 2050 |
| Ultimate Partial Pressure (Pa) | 0.05 | 0.05 | 0.05 | 0.05 | 0.05 |
| Ultimate Total Pressure (Pa) | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 |
| Max Allowable ΔP (Pa) | 8000 | 8000 | 8000 | 8000 | 5000 |
| Inlet/Outlet Diameter (mm) | 65 | 65 | 65 | 100 | 150 |
| Max Pressure Ratio (K0.max) | ≥ 35 | ≥ 35 | ≥ 40 | ≥ 40 | ≥ 50 |
| Noise Level LwdB(A) | ≤ 63 | ≤ 63 | ≤ 63 | ≤ 68 | ≤ 75 |
| Motor Power (kW) / Voltage | 1.1 kW | 1.1 kW / 380V 50Hz | 2.2 kW | 4.0 kW | 7.5 kW |
| Motor Speed (r/min) | 3000 | 3000 | 3000 | 3000 | 3000 |
| Oil Capacity (L) | 1.5 | 1.5 | 3.0 | 5.0 | 7.0 |
| Cooling Method | Air Cooled | Natural Air Cooling | Air Cooled | Air Cooled | Air Cooled |
| Net Weight (kg) | 90 | 100 | 155 | 233 | 465 |
| Recommended Backing Pump | V-63 / 2X-8 | V-100 (2X-15) / 2BVA5110 | V-160 / 2X-30 | V-302 / 2X-70 | V-630 / 2x 2X-70 |
Rotor-to-rotor and rotor-to-casing operation requires zero internal lubrication, ensuring clean, oil-mist-free vacuum processing for sensitive applications.
Features an internal bypass valve that automatically protects the pump and motor from overload during high pressure differential conditions, enabling reliable start-up.
Precision-balanced rotors, dynamic seal rings, and synchronous timing gears minimize vibration and acoustic output, operating at ≤63 dB.
Low electrical power input (1.1 kW) with high compression ratios (K0.max ≥35). Compact structure supports both horizontal and vertical installation flexibility.
The VJP-250 Roots booster pump maintains a high pumping speed of 253 m³/h even under low inlet pressure conditions. When combined with a suitable backing pump, it accelerates chamber evacuation while maintaining energy efficiency with a 1.1 kW motor.
Common backing pumps include rotary vane pumps like the GOFLEX V-100 (2X-15) or liquid ring pumps such as the 2BVA5110. For ultra-deep vacuum applications, two Roots pumps can be connected in series for a 3-stage vacuum system.
The integrated bypass valve automatically balances the pressure differential between the intake and exhaust ports during sudden pressure spikes, preventing thermal or mechanical overload on the motor and timing gears.
Yes. GOFLEX provides complete OEM/ODM customization, including special motor voltages (220V, 380V, 440V at 50Hz/60Hz), custom paint colors, customized inlet/outlet adapters, and private label branding.
Get custom OEM configurations, detailed technical CAD drawings, and quick wholesale quotations within 12 hours.
