Product Description
RUVAC WH : SKU – 127700V15 – RUVAC WHU 7000
RUVAC WHU pumps are lubricated with synthetic oil or perfluorinated polyether (PFPE), but RUVAC WHU PFPE pumps must be used for oxygen concentrations above atmospheric levels. RUVAC WH/WHU 2500 pumps gas vertically, while the RUVAC WH/WHU 4400 and 7000 can pump gas horizontally or vertically. Roots pumps do not have sealants or lubricants inside the pumping chamber, but synthetic oil or PFPE is used to grease the two gearwheels of the synchromesh gears and the bearings. The impeller seals keep the two bearing chambers separate from the pumping chamber. A water-cooled, hermetically sealed motor powers the RUVACs, which are sealed against the atmosphere and operate only in a vacuum, so a shaft feedthrough to the atmosphere is not required. When using the standard motors, the RUVAC WH/WHU 4400/7000 can operate on a 50 Hz or 60 Hz power supply or with the appropriate frequency converter. The RUVAC WH/WHU 2500 has motors that run on either an internal or external frequency converter or a 50 Hz or 60 Hz power supply.
Product Features
- Pumping speed from 720 to 9,800 m^3/h (with frequency converter)
- Excellent performance and consumption
- Hermetically-sealed drive motor
- Small footprint
- Innovative bypass valve
- Direct connection of large fore vacuum pumps via an adapter
Applications
- Display production
- Glass coating
- Energy storage applications
- Solar industry
- Furnace applications
- Industrial coating processes
- Research
- Space simulation
Technical data for RUVAC WH/WHU
| RUVAC WH/WHU | Unit | 4400 | 4400 | 4400 | 7000 | 7000 | 7000 |
| 50 Hz | 60 Hz | 80 Hz | 50 Hz | 60 Hz | 70 Hz |
| Nominal pumping speed according. to DIN 28426 | m^3h-1 | 4400 | 5280 | 7040 | 7000 | 8400 | 9800 |
Maximum effective pumping speed with SP 630 backing pump
(+ RUVAC WS 2001) | m^3h-1 | 3300 | 3900 | 4800 | 4700 | 5300 | 5800 |
| (3700) | (4400) | (5800) | (5700) | (6800) | (7800) |
Maximum permissible pressure difference
WH for continuous operation1) | mbar mbar | 30 – 45 90 | 20 – 30 90 | 8 – 12 – | 20 – 30 70 | 14 – 21 70 | 11 – 14 – |
| WHU for short cycle operation < 2 minutes |
| Leak rate | mbar. l. s-1 | 1×10-5 |
| Permissible ambient temperature | °C | 10 – 404) |
| Storage temperature | °C | -10 to + 60 |
| Pollution degree | | 2 |
| Overvoltage category | | III |
| Mains voltage | V | 400 (200)2) | 460 (230)2) | – | 400 (200)2) | 460 (230)2) | – |
| Rated power consumption | kW | 11 / 18.5 |
| Power consumption at operation with frequency converter | kW | < 6 |
Nominal current for 400/460 V (200/230 V) with 11 kW motor
with 18.5 kW motor | A A | 20 (41.3)
33.6 | 17.4 (36.4)
28.6 | | 20 (41.3)
33.6 | 17.4 (36.4)
28.6 | |
| Idle power consumption | kW | 0.7 | 0.8 | 1.0 | 0.9 | 1.0 | 1.2 |
| Nominal speed | rpm | 3000 | 3600 | 4800 | 3000 | 3600 | 4200 |
| Maximum permissible speed3) | rpm | 4800 | 4800 | 4800 | 4200 | 4200 | 4200 |
| Motor efficiency class calculated and configured according to EN 60034-30 | IE36) |
Connecting cable cross-selection, maximum (drive) 400 V 11 KW
400 V 18 kW
200 V 11 kW | mm2 | 10
16 (Input), 10 (Output)
25 |
| Protection class according to EN 60529/NEMA | IP 55/Type 1 (UL 50E) |
| Lubricant filling (vertical/horizontal) | L | 4.75 / 1.8 |
Connecting flange Intake
Discharge | DN DN | 250 ISO-K | 250 ISO-K | 250 ISO-K | 320 ISO-K | 320 ISO-K | 320 ISO-K |
| 160 ISO-K |
| Materials (components in contact with gas in the pump cham‐ ber | Grey cast iron/graphite cast iron/FKM/steel/stainless steel/epoxy paint |
