SCROLLVAC 3 plusPumping speed 3 m³/hUltimate pressure 0.1 mbar
SCROLLVAC 18 plus 1Ph 100-127/200-240 V 50/60 Hz, C version
With 20 m³/h maximum pumping speed, the Leybold SCROLLVAC 18 plus is the largest oil-free scroll vacuum pump in the SCROLLVAC plus series; the ultimate pressure is 0.03 mbar. Ehrler & Beck supplies the SCROLLVAC 18 plus in six variants with matching accessories, spare parts and service.
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- Pumping speed 20 m³/h 50 Hz 20 m³/h 60 Hz
- Ultimate pressure 0.03 mbar
- Rated motor power 0.26 kW 50 Hz 0.26 kW 60 Hz
| Variant | Part number |
|---|---|
| 1Ph 100-127/200-240 V 50/60 Hz | 141018V10 |
| 1Ph 100-127/200-240 V 50/60 Hz, H version | 141018V11 |
| 1Ph 100-127/200-240 V 50/60 Hz, C version (selected) | 141018V12 |
| 3Ph 200/380-415 V 50 Hz, 200-230/460 V 60 Hz | 141018V30 |
| 3Ph 200/380-415 V 50 Hz, 200-230/460 V 60 Hz, H version | 141018V31 |
| 3Ph 200/380-415 V 50 Hz, 200-230/460 V 60 Hz, C version | 141018V32 |
Leybold SCROLLVAC 18 plus – highest pumping speed in the series
The SCROLLVAC 18 plus achieves 20 m³/h maximum pumping speed with an ultimate pressure of 0.03 mbar. It draws 260 W at ultimate pressure, weighs 25 kg and pumps up to 220 g/h of water vapour with gas ballast. The housing and flanges (DN 25 ISO-KF) are identical to those of the smaller sizes.Designed for fast pump-down
The high pumping speed shortens the pump-down time; for continuous operation Leybold specifies a maximum inlet pressure of 50 mbar for this size (smaller sizes: 200 mbar). The 18 plus has its own service kits and its own C conversion kit.Typical applications
Backing pump for large turbomolecular pumps, chamber evacuation in research and analytics, coating systems and other clean processes.Variants of the SCROLLVAC 18 plus
The SCROLLVAC 18 plus is available from Ehrler & Beck in six variants (part numbers 141018V10, 141018V11, 141018V12, 141018V30, 141018V31, 141018V32): as standard, H and C versions, each with a 1-phase or 3-phase motor. The power consumption at ultimate pressure is 0.26 kW for all variants and the weight 25 kg; the pumping speed ranges from 16.7 m³/h (3-phase at 50 Hz) to 20 m³/h.Features of the SCROLLVAC 7 to 18 plus
- Oil-free: dry scroll principle, no oil in the pumping chamber
- Quiet: less than 55 dB(A), low vibration (below 4.5 mm/s)
- Leak-tight: leak rate 1 × 10⁻⁶ mbar·l/s
- Three versions: standard with gas ballast, H without gas ballast, C for aggressive applications
- Single- or three-phase: 100–127 V / 200–240 V or 200 / 380–415 V (50 Hz) or 200–230 / 460 V (60 Hz)
- Certified: ATEX II 3 G Ex h IIC T4 Gc X (internal atmosphere only)
| Pumping speed 50Hz | 20 |
|---|---|
| Pumping speed 60Hz | 20 |
| Ultimate pressure | 0.03 |
| Rated motor power 50Hz | 0.26 |
| Rated motor power 60Hz | 0.26 |
| Weight | 25 |
| Length | 43.2 |
| Width | 29.8 |
| Height | 31.2 |
| Inlet connection flange | DN 25 ISO-KF (NW25) |
| Outlet connection flange | DN 25 ISO-KF (NW25) |
| Noise level | 55 dB(A) |
| Cooling method | Air cooling |
| Oil type | Oil-free |
Additional technical data
| Technical data | Value |
|---|---|
| Max. pumping speed | 20 m³/h (50/60 Hz) |
| Ultimate pressure with gas ballast closed | 3 × 10⁻² mbar |
| Ultimate pressure with gas ballast (position 1) | 2 × 10⁻¹ mbar |
| Gas ballast flow (position 1) | 13 l/min |
| Water vapour capacity with gas ballast | 220 g/h |
| Version | C version for aggressive applications, with gas ballast |
| Power consumption at ultimate pressure | 260 W |
| Mains voltage | 100-127 V or 200-240 V ± 10 %, 50/60 Hz, 1-phase |
| Input current | 10 A (100-127 V) / 6 A (200-240 V) |
| Mains connection | IEC EN60320 C19 (mains cable required, see accessories) |
| Speed at full load | 1800 min⁻¹ |
| Max. continuous inlet pressure | 50 mbar |
| Recommended chamber volume from atmospheric pressure, max. | 75 l |
| Max. outlet pressure | 0.5 bar (gauge pressure) |
| Leak rate | 1 × 10⁻⁶ mbar·l/s |
| Noise level at ultimate pressure | < 55 dB(A) |
| Vibration at the inlet (ISO 20816-1) | < 4.5 mm/s |
| Cooling | Air (fan) |
| Permissible ambient temperature | +5 to +40 °C |
| Relative humidity in operation | 10 to 90 % |
| Installation altitude, max. | 2000 m |
| Certification | ATEX II 3 G Ex h IIC T4 Gc X (internal atmosphere only) |
| Product name | Part number |
|---|---|
| Minor service kit SCROLLVAC 18 plus (tip seals) | EK117141001 |
| Minor service kit SCROLLVAC 18 C plus | EK117141003 |
| Bearing replacement kit SCROLLVAC 7-18 plus | EK117141004 |
| Silencer spares kit (for 141102A02) | EK117141005 |
| Spares kit rear bearing / bearing housing | A73501712 |
| Product name | Part number |
|---|---|
| Mains cable EU (CEE 7/7 – C19), 2 m | 161810EU |
| Mains cable UK (BS 1363 – C19), 2 m | 161810UK |
| Mains cable USA 115 V (NEMA 5-15P – C19), 2 m | 141103US |
| Mains cable USA 230 V (NEMA 6-15P – C19), 2.5 m | 161810US |
| Gas ballast blank plug | 141100A01 |
| Purge gas adapter with fine restriction (quick connect 1/4") | 141100A03 |
| Purge gas adapter without restriction (quick connect 1/4") | 141100A02 |
| Vibration isolators SCROLLVAC 7, 10, 15, 18 plus | 141102A01 |
| Exhaust silencer SCROLLVAC 7, 10, 15, 18 plus | 141102A02 |
| Centring ring stainless steel with O-ring FKM, DN 25 ISO-KF | 88347 |
| Centring ring Al with O-ring FKM, DN 25 ISO-KF | 18207 |
| Clamping ring Al (ADC 12), DN 20/25 ISO-KF | 18342 |
| THERMOVAC TTR 91 RN, DN 16 KF | 21L1011100 |
| C conversion kit (SCROLLVAC 18 plus) | 141101A02 |
SCROLLVAC 3 plusPumping speed 3 m³/hUltimate pressure 0.1 mbarSCROLLVAC 7 plusPumping speed 5.1 – 6.1 m³/hUltimate pressure 0.02 mbar
SCROLLVAC 10 plusPumping speed 9.1 – 10.6 m³/hUltimate pressure 9 × 10-3 mbarSCROLLVAC 15 plusPumping speed 12.6 – 14.5 m³/hUltimate pressure 9 × 10-3 mbar