ROTARY UNITS
SPECIAL VERSIONS
EXAMPLES
The standard rotary union series is particulary suitable for common pneumatic applications with compressed air and vacuum, as well as for hydraulic oil in the low-pressure range.
Versions
The rotary distributors are designated according to the number of channels and the nominal size or connection thread:
Available number of channels: 1, 2, 4, 6 and 8
Connection sizes: M5 up to G 3″ (see data sheets)
Materials
Housing: Aluminium, red anodized
Spindle: Stainless steel
For direct contact with our experts regarding your specific rotary unit (DDF) request, please reach out to us – or alternatively, use our project questionnaire for rotary units.
Different Media
For applications involving different media, we recommend designating one channel as a leakage line.
General Information
The values specified in the data sheets represent the maximum achievable limits.
For use below 0°C or when multiple parameters operate close to their limit range, technical consultation is required.
Rotary Units
Type DDF-1
Media Feed-Through
TECHNICAL INFORMATION
| Channels: | 1 |
| Connections: | M5 – G1/8″ – G1/4″ – G1/2″ – G3/4″ – G1″ |
| Speed: | max. 3000 rpm M5 – G 1/4″ max. 2000 rpm G 1/2″ max. 1500 rpm G 3/4″ max. 1200 rpm G 1″ |
| Pressure: | -0,95 bar / 16 bar |
| Temperature Range: | 0°C / +100°C |
| Media: | Compressed Air, Vacuum |
| Filtration: | Liquid Media: 5 µm Gaseous Media: 30 µm |
| Datasheet: | Rotary Unions DDF-1 |
| 3D-CAD-Models: | Link |
| Special: | Additional pressure and temperature ranges, connection sizes, and other variations available upon request. |
Rotary Units
Type DDF-2
Media Feed-Through
TECHNICAL INFORMATION
| Channels: | 2 |
| Connections: | M5 – G1/8″ – G1/4″ – G1/2″ |
| Speed: | max. 300 rpm |
| Pressure: | -0,95 bar / 16 bar |
| Temperature Range: | 0°C / +80°C |
| Media: | Compressed Air, Vacuum |
| Filtration: | Liquid Media: 5 µm Gaseous Media: 30 µm |
| Datasheet: | Rotary Unions DDF-2 |
| 3D-CAD-Models: | Link |
| Special: | Additional pressure and temperature ranges, connection sizes, and other variations available upon request. |
Rotary Units
Type DDF-4
Media Feed-Through
TECHNICAL INFORMATION
| Channels: | 4 |
| Connections: | M5 – G1/8″ – G1/4″ – G1/2″ |
| Speed: | max. 300 rpm |
| Pressure: | -0,95 bar / 16 bar |
| Temperature Range: | 0°C / +80°C |
| Media: | Compressed Air, Vacuum |
| Filtration: | Liquid Media: 5 µm Gaseous Media: 30 µm |
| Datasheet: | Rotary Unions DDF-4 |
| 3D-CAD-Models: | Link |
| Special: | Additional pressure and temperature ranges, connection sizes, and other variations available upon request. |
Rotary Units
Type DDF-6
Media Feed-Through
TECHNICAL INFORMATION
| Channels: | 6 |
| Connections: | M5 – G1/8″ – G1/4″ – G1/2″ |
| Speed: | max. 200 rpm M5 max. 120 rpm G 1/8″ max. 100 rpm G 1/4″ max. 80 rpm G 1/2″ |
| Pressure: | -0,95 bar / 16 bar |
| Temperature Range: | 0°C / +80°C |
| Media: | Compressed Air, Vacuum |
| Filtration: | Liquid Media: 5 µm Gaseous Media: 30 µm |
| Datasheet: | Rotary Unions DDF-6 |
| 3D-CAD-Models: | Link |
| Special: | Additional pressure and temperature ranges, connection sizes, and other variations available upon request. |
Rotary Units
Type DDF-8
Media Feed-Through
TECHNICAL INFORMATION
| Channels: | 8 |
| Connections: | M5 – G1/8″ – G1/4″ – G1/2″ |
| Speed: | max. 200 rpm M5 max. 120 rpm G 1/8″ max. 100 rpm G 1/4″ max. 60 rpm G 1/2″ |
| Pressure: | -0,95 bar / 16 bar |
| Temperature Range: | 0°C / +80°C |
| Media: | Compressed Air, Vacuum |
| Filtration: | Liquid Media: 5 µm Gaseous Media: 30 µm |
| Datasheet: | Rotary Unions DDF-8 |
| 3D-CAD-Models: | Link |
| Special: | Additional pressure and temperature ranges, connection sizes, and other variations available upon request. |
Example of Type Designation:
DDF-2-1/4
= 2 Channels,
G1/4″ Connection,
Standard Version
Full Catalogue
