Large configurable pumping unit based on the JFB-250/2201 turbomolecular pump. The detailed source specification gives 2,050 L/s for nitrogen, with DN250 LF/ISO-K or CF inlet versions.
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Description
CBVAC JFJ-2201 High-Vacuum Pumping Unit
The JFJ-2201 is a high-throughput DN250 pumping unit for large process and research chambers. Backing, valves, gauge, frame and control package must be selected for the required gas load and cycle.
| High-vacuum pump | CBVAC JFB-250/2201 |
|---|---|
| Pumping speed | 2,050 L/s nitrogen; 1,800 L/s helium |
| Ultimate pressure of turbopump stage | <5 × 10−7 Pa CF; <5 × 10−6 Pa LF/ISO-K |
| Main inlet / foreline | DN250 LF/ISO-K or CF250 / DN40 ISO-KF |
| Recommended backing-pump speed | 16–24 L/s |
| Turbopump supply / maximum power | 220 V AC ±10%, 50/60 Hz / up to 1,000 W |
| Cooling | Air or water; source water value ≥1.5 L/min at 15–25 °C |
| Approximate unit weight | 115–145 kg for current JFJ-701A/1401A/2201A inventory, configuration-dependent |
The 2201 designation is a product class; the detailed source table states 2,050 L/s for nitrogen. Confirm exact unit suffix, backing pump, flange, control package, frame, lifting points and cooling.
Use engineered supports, guarded lifting and interlocked backing, cooling, pressure, speed and vent sequences.
