Precision and flexibility: The various control types of Viscotherm hydraulic units
Viscotherm offers hydraulic units in various configurations with power ranges from 3 to 200 kW, tailored to different requirements. Depending on the application, three control types are available: hydraulically manual for simple operation, hydraulically electronic for precise control, and frequency-controlled for maximum flexibility and efficiency. This variety ensures the optimal solution for every application.
VFD pump unit product range
Automatic, analogue control with frequency converter and electronic unit
| Power of E-motor | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Maximum pressure of pump (pressure relief valve) | |||||||||||||||||
| Max. displacement of pump | |||||||||||||||||
| Operating speed range | |||||||||||||||||
| Frequency range | |||||||||||||||||
| Min. flow max. working pressure (250 bar) | |||||||||||||||||
| Max. flow at max. possible pressure | |||||||||||||||||
| Pressure/power limit point Max. flow at max. working pressure 250 bar | |||||||||||||||||
| Tank capacity | |||||||||||||||||
| Dimensions (l x w x h) | |||||||||||||||||
| Type | kW | bar | ccm/revolution | rpm | Hz | I/min | l/min / bar | I/min | l | mm | |||||||
| VFD 3-2.1 Z/HP | 3 | 280 | 2.1 | 300-6000 | 5-104 | 0.5 | 11.9 / 129 | 6.2 | 50 | 690 x 655 x 675 | |||||||
| VFD 5.5-4.5 Z/HP | 5.5 | 280 | 4.5 | 300-4000 | 10-137 | 1.3 | 17.1 / 165 | 11.3 | 50 | 690 x 655 x 730 | |||||||
| VFD 7.5-6.4 Z/HP | 7.5 | 280 | 6.4 | 300-4000 | 10-137 | 1.8 | 24.3 / 159 | 15.4 | 50 | 690 x 655 x 770 | |||||||
| VFD 11-11.5 Z/HP | 11 | 280 | 11.5 | 300-3600 | 10-123 | 3.2 | 39.1 / 144 | 22.6 | 50 | 690 x 655 x 850 | |||||||
| VFD 15-14.1 Z/HP | 15 | 280 | 14.1 | 300-3600 | 10-123 | 3.9 | 48.1 / 160 | 30.8 | 50 | 690 x 655 x 895 | |||||||
| VFD 18.5-16.0 Z/HP | 18.5 | 280 | 16 | 300-3200 | 10-108 | 4.5 | 48.2 / 197 | 38.0 | 50 | 690 x 700 x 915 | |||||||
| VFD 22-17.9 Z/HP | 22 | 280 | 17.9 | 300-3200 | 10-109 | 5.0 | 54.4 / 208 | 45.2 | 50 | 690 x 700 x 955 | |||||||
| VFD 30-33.0 Z/HP | 30 | 280 | 33.0 | 300-3000 | 10-102 | 9.2 | 93.6 / 164 | 61.6 | 100 | 800 x 855 x 1070 | |||||||
| VFD 37-39.0 Z/HP | 37 | 280 | 39.0 | 300-3000 | 10-102 | 10.9 | 110.7 / 172 | 76.0 | 100 | 800 x 855 x 1120 | |||||||
| VFD 45-44.0 Z/HP | 45 | 280 | 44.0 | 300-2800 | 10-95 | 12.3 | 117.1 / 197 | 92.4 | 100 | 800 x 855 x 1120 | |||||||
Scope of delivery for VFD pump unit
- Oil tank with cleaning cover
- Gear pump
- Electric motor IEC IE2, WEG (3×400 V – 50 H)
- VFD control block complete incl. pressure sensor
- Level and temperature indicator
- Level and temperature switch
- High and low pressure hoses for ROTODIFF connection (2500 mm standard length)
- Paint in RAL
Options
- Oil water cooler standard or seawater resistant
- Oil-air cooler incl. temperature regulator
- Frequency converter
- External fan unit to electric motor
- Therm. water control valve cpl.
- Electrical filter blockage indicator
- Flow meter
- Terminal box, wired
Under certain conditions, VFD pump units are also available for potentially explosive atmospheres / as an ATEX version
Subject to technical modifications
B/C pump unit product range
Automatic, analogue control with electronic unit
| Power of E-motor | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Maximum pressure of pump (setting the pressure relief valve) | |||||||||||||||||
| Max. displacement of pump | |||||||||||||||||
| Pressure/power limit point Max. flow at max. working pressure 250 bar (50 Hz) | |||||||||||||||||
| Max. flow at max. pressure and 50 Hz | |||||||||||||||||
| Tank capacity | |||||||||||||||||
| Dimensions (l x w x h) | |||||||||||||||||
| Type | kW | bar | ccm/revolution | I/min | l/min / bar | l | mm | ||||||||||
| B/C 3-4.1 Z/HP | 3 | 280 | 4.1 | 6.0 | - | 50 | 705 x 600 x 685 | ||||||||||
| B/C 5.5-7.0 Z/HP | 5.5 | 280 | 7.0 | 11.0 | - | 50 | 705 x 600 x 730 | ||||||||||
| B/C 7.5-11.5 Z/HP | 7.5 | 280 | 11.5 | 15.0 | - | 50 | 705 x 600 x 770 | ||||||||||
| B/C 11-16.0 Z/HP | 11 | 280 | 16.0 | 22.0 | - | 50 | 705 x 600 x 850 | ||||||||||
| B/C 15-22.0 Z/HP | 15 | 280 | 22.0 | 31.0 | - | 50 | 705 x 600 x 895 | ||||||||||
| B/C 18.5-26.0 Z/HP | 18.5 | 280 | 26.0 | 38.0 | - | 85 | 700 x 600 x 915 | ||||||||||
| B/C 22-33.0 Z/HP | 22 | 280 | 33.0 | 45.0 | - | 85 | 700 x 600 x 1125 | ||||||||||
| B/C 18.5-28.0 K | 18.5 | 280 | 28.0 | 38.0 | 39.0 / 242 | 85 | 930 x 825 x 1125 | ||||||||||
| B/C 22-45.0 K | 22 | 280 | 45.0 | 45.0 | 63.0 / 178 | 150 | 930 x 825 x 1190 | ||||||||||
| B/C 30-45.0 K | 30 | 280 | 45.0 | 61.0 | 63.0 / 243 | 150 | 930 x 825 x 1190 | ||||||||||
| B/C 30-71.0 K | 30 | 280 | 71.0 | 61.0 | 100.0 / 153 | 150 | 930 x 825 x 1240 | ||||||||||
| B/C 37-71.0 K | 37 | 280 | 71.0 | 76.0 | 100.0 / 189 | 150 | 930 x 825 x 1240 | ||||||||||
| B/C 45-71.0 K | 45 | 280 | 71.0 | 92.0 | 100.0 / 230 | 150 | 1180 x 920 x 1415 | ||||||||||
| B/C 55-100.0 K | 55 | 280 | 100.0 | 112.0 | 140.0 / 200 | 250 | 1180 x 920 x 1530 | ||||||||||
| B/C 75-125.0 K | 75 | 280 | 125.0 | 153.0 | 150.0 / 219 | 220 | 760 x 1820 x 1350 | ||||||||||
Scope of delivery for B/C pump unit
- Oil tank with cleaning cover
- Gear pump or piston pump
- Electric motor IEC IE2, WEG (3×400 V – 50 Hz / 3×480 V – 60 Hz)
- B/C control block complete incl. proportional throttle valve
- Level and temperature indicator
- Level and temperature switch
- High and low pressure hoses for ROTODIFF connection (2500 mm standard length)
- Paint in RAL
Options
- Oil water cooler standard or seawater resistant
- Oil-air cooler incl. temperature regulator
- Therm. water control valve cpl.
- Electrical filter blockage indicator
- Terminal box, wired
- Flow meter
Some B/C pump units are also available in a version for potentially explosive atmospheres / as an ATEX version
Subject to technical modifications
C pump unit product range
Automatic, analogue control, hydraulic
| Power of E-motor | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Maximum pressure of pump (pressure relief valve) | |||||||||||||||||
| Max. displacement of pump | |||||||||||||||||
| Pressure/power limit point Max. flow at max. working pressure 250 bar (50 Hz) | |||||||||||||||||
| Max. flow at max. possible pressure (50 Hz) | |||||||||||||||||
| Tank capacity | |||||||||||||||||
| Dimensions (l x w x h) | |||||||||||||||||
| Type | kW | bar | ccm/revolution | I/min | l/min / bar | l | mm | ||||||||||
| C 3-4.1 Z/HP | 3 | 280 | 4.1 | 6.0 | - | 50 | 705 x 600 x 685 | ||||||||||
| C 5.5-7.0 Z/HP | 5.5 | 280 | 7.0 | 11.0 | - | 50 | 705 x 600 x 730 | ||||||||||
| C 7.5-11.5 Z/HP | 7.5 | 280 | 11.5 | 15.0 | - | 50 | 705 x 600 x 770 | ||||||||||
| C 11-16.0 Z/HP | 11 | 280 | 16.0 | 22.0 | - | 50 | 705 x 600 x 850 | ||||||||||
| C 15-22.0 Z/HP | 15 | 280 | 22.0 | 31.0 | - | 50 | 705 x 600 x 895 | ||||||||||
| C 18.5-26.0 Z/HP | 18.5 | 280 | 26.0 | 38.0 | - | 50 | 705 x 600 x 915 | ||||||||||
| C 22-33.0 Z/HP | 22 | 280 | 33.0 | 45.0 | - | 50 | 705 x 600 x 1125 | ||||||||||
| C 22-45.0 K | 22 | 280 | 45.0 | 45.0 | 63.0 / 178 | 150 | 930 x 825 x 1125 | ||||||||||
| C 30-45.0 K | 30 | 280 | 45.0 | 61.0 | 63.0 / 243 | 150 | 930 x 825 x 1190 | ||||||||||
| C 30-71.0 K | 30 | 280 | 71.0 | 61.0 | 100.0 / 153 | 150 | 930 x 825 x 1190 | ||||||||||
| C 37-71.0 K | 37 | 280 | 71.0 | 76.0 | 100.0 / 189 | 150 | 930 x 825 x 1240 | ||||||||||
| C 45-71.0 K | 45 | 280 | 71.0 | 92.0 | 100.0 / 230 | 150 | 930 x 825 x 1240 | ||||||||||
| C 55-100.0 K | 55 | 280 | 100.0 | 112.0 | 140.0 / 200 | 250 | 1180 x 920 x 1415 | ||||||||||
| C 75-100.0 K | 75 | 280 | 100.0 | 153.0 | 140.0 / 273 | 250 | 1180 x 920 x 1530 | ||||||||||
Scope of delivery for C pump unit
- Oil tank with cleaning cover
- Gear pump or axial piston pump
- Electric motor IEC IE2, WEG (3×400 V – 50 Hz / 3×480 V – 60 Hz)
- C control block complete incl. flow meter
- Level and temperature indicator
- Level and temperature switch
- High and low pressure hoses for ROTODIFF connection (2500 mm standard length)
- Paint in RAL
Options
- Oil water cooler standard or seawater resistant
- Oil-air cooler incl. temperature regulator
- Therm. water control valve cpl.
- Electrical filter blockage indicator
- Terminal box, wired
- Pressure sensor
C pump units are also available as ATEX versions
Subject to technical modifications














