Chemistry pumping unit PC 620 select
PC 620 select
VACUUBRAND20737350ca. 457 mmca. 243 mmca. 20.6 kgThis chemistry vacuum pumping unit is an economical, compact solution for simultaneous operation of two electronically controlled vacuum applications with a single pump. Based on our popular MD 4C NT three-stage chemistry diaphragm pump, the PC 620 select is frequently used for vacuum applications involving even high boiling point solvents. This pump has sufficient capacity to run two demanding applications simultaneously.
Both vacuum ports have independent solenoid valves for electronic vacuum control, and check valves to protect against cross contamination and interference. The integrated VACUU·SELECT controller provides an easy-to-use, application based interface that covers all common lab applications. The VACUU·SELECT controller has you covered. Use manual set-point-control for simple processes, run distillations, or create your own application with simple drag-and-drop editing. For solvent evaporation, it constantly monitors the pressure and switches to 2 point control mode to hold the pressure stable when a boiling point is detected. The inlet separator, made of glass with a robust protective coating, prevents particles and liquid droplets from entering the pump, preventing damage and extending pump life. And the exhaust vapor condenser allows for nearly complete recovery of solvents when used with a chilled water line or recirculating chiller for economical recycling and environmental protection.
Performance features
- VACUU·SELECT vacuum controller with graphical user interface simplifies work in the laboratory
- predefined applications save time and give reproducible result
- easy-to-use application editor allows own process sequences
- meets high vacuum requirements for most high boiling solvents
- PC 620 select allows simultaneous operation of two independent vacuum applications with electronic vacuum control
Technical data
| Technical data | Unit | PC 620 select |
|---|---|---|
| Vacuum controller | VACUU·SELECT | |
| Number of heads / stages | 4 / 3 | |
| Max. pumping speed at 50/60 Hz | m3/h | 3.4 / 3.8 |
| Max. pumping speed at 50/60 Hz | cfm | 2.0 / 2.2 |
| Ultimate vacuum (abs.) | mbar/torr | 1.5 / 1.1 |
| Ultim. vac. (abs.) with gas ballast | mbar/torr | 3 / 2.2 |
| Ambient temperature range (operation) | °C | 10 - 40 |
| Ambient temperature range (storage) | °C | -10 - 60 |
| Max. back pressure (abs.) | bar | 1.1 |
| Inlet connection | Hose nozzle DN 8-10 mm | |
| Outlet connection | Hose nozzle DN 8-10 mm | |
| Coolant connection | 2 x hose nozzle DN 6-8 mm | |
| Rated motor power | kW | 0.25 |
| Rated motor speed at 50/60 Hz | min-1 | 1500/1800 |
| Degree of protection | IP 40 | |
| Dimensions (L x W x H) | mm | 435 x 243 x 457 |
| Weight | kg | 20.6 |
| Noise level at 50 Hz, typ. | dBA | 45 |
| ATEX conformity (only 230V) | II 3/- G IIC T3 X Internal Atm. only | |
| Items supplied | Pumping unit completely mounted, ready for use, with manual. | |
| Accessories | Coolant valve VKW-B (20674220) Vent valve VB M-B (20674217) Liquid level sensor (20699908) Rubber vacuum tubing DN 8 mm (20686001) |
PC 620 select - Pumping speed graph at 50 Hz PC 620 select - Pump down graph at 50 Hz (10 l volume) PC 620 select - Pumping speed graph at 60 Hz PC 620 select - Pump down graph at 60 Hz (10 l volume) |
PC 620 select - Dimension sheet |
-Technical data are subject to change without notice-
Ordering data
| Product name | Mains voltage and frequency | Plug | * Order no. |
|---|---|---|---|
| PC 620 select | 230 V~ 50-60 Hz | CEE | 20737350 |
| 230 V~ 50-60 Hz | CH | 20737351 | |
| 230 V~ 50-60 Hz | UK | 20737352 | |
| 100-115 V~ 50-60 Hz 120 V~ 60 Hz | US | 20737353 | |
| 230 V~ 50-60 Hz | CN | 20737356 | |
| 230 V~ 50-60 Hz | IN | 20737357 |
* As part of the implementation process of our new ERP system in 2018 our catalog numbers were extended to 8 digits in length by adding the digits “2” or “20” to the beginning of the old catalog numbers.
