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HiScroll - The Oil-Free Vacuum Pumps
The HiScroll series consists of three dry scroll pumps with a nominal pumping speed of 6 – 21 m³/h, which are characterized by fast evacuation to atmosphere. Their powerful IPM1 - (synchronous motors with sensorless INFORM® control2) achieve up to 15 % higher efficiency than conventional drives and enable stable low operating temperatures for the pump. They also reduce electricity costs.

Pfeiffer Vacuum PD S20 000 B Features:
- 12 M^3/hr dry scroll vacuum pump 
- No hydrocarbons: Completely dry & oil-free Scroll vacuum pump 
- Low noise level, minimal vibrations and compact design, ideal also for use in laboratories 
- Safe operation due to the installed non-return valve and hermetically sealed pumping system 
- Low operating costs thanks to the highest quality, short maintenance times and long maintenance intervals 
- Power as required: Stable pumping speed and short cycle times 
- Sustainable: 15% higher efficiency of the drive system, lower heat generation and lower cooling requirements 
- Intelligent operating modes such as standby mode and interfaces for linking controllers and other Pfeiffer vacuum via RS-485 
- Simple logistics: Our HiScroll pumps are suitable for all voltages worldwide 
Pfeiffer Vacuum PD S20 000 B Product Details:
- Pumping speed: 12.1 m³/h 
- Final pressure: 6 · 10-3 hPa | 4.5 · 10-3 Torr | 6 · 10-3 mbar 
- Ultimate pressure for gas ballast stage: 1 5 · 10-2 hPa | 3.75 · 10-2 Torr | 5 · 10-2 mbar 
- Ultimate pressure for gas ballast stage: 2 4 · 10-1 hPa | 3 · 10-1 Torr | 4 · 10-1 mbar 
- Gas ballast flow stage 1: 1.08 m3/h | 0.636 cfm | 18 l/min 
- Gas ballast flow stage 2: 1.8 m3/h | 1.059 cfm | 30 l/min 
- Integral leak rate: 5 · 10-7 Pa m3/s | 6.65 · 10-5 Torr l/s | 5 · 10-5 mbar l/s 
- Intake pressure: max: 1,100 hPa 
- Exhaust pressure, max: 1,500 hPa | 1,125 Torr | 1,500 mbar 
- Connection flange (in): DN 25 ISO-KF 
- Connection flange (out): DN 25 ISO-KF 
- I/O interfaces: RS-485 
- Input voltage(s): 100 – 127 / 200 – 240 V AC (±10 %), 50/60 Hz 
- Input voltage: tolerance: ±10 % 
- Rated current consumption: 100 V – 127 V: 8 A | 200 V – 240 V: 4 A 
- Current, max: 8 A 
- Rotation speed: 624 – 1 870 rpm 
- Nominal rotation speed: 1,560 rpm | 1,560 min-1 
- Protection degree: IP40 | Type 1 
- ATEX-certification: Ex II 3/-G Ex h IIC T4 Gc X +5 °C ≤ Ta ≤ +40 °C 
- Certification: Semi S2 compatible|Semi S8 compatible|cTUVus certifiedaccording to UL / CSA 61010-1 |KC 
- Switch: Yes 
- Ambient temperature: 5 – 40 °C 
- Cooling method: Air (Forced convection) 
- Emission sound pressure level (EN ISO 2151): 47 dB(A) 
- Weight: 24 kg | 52.91 lb 
- Gas ballast: Yes 
- Operating altitude, max: 2,500 m 
