DEMAC range · Quotations and technical advice on request
GR-4 four-line rotary unions, 240 bar and 180° rotation. Three part numbers in 3/8 or 1/2 inch, with different mounting drawings.
| Product type | Rotary union |
|---|---|
| Number of lines | 4 hydraulic lines |
| Application | High-pressure hydraulics, Mobile machinery and cranes, Oil |
| Pressure | 240 bar |
| Hose diameter | 3/8" - DN 10, 1/2" - DN 13 |
| ATEX zone | No |
| Technical drawings | View technical drawings |
The rotary unions GR-4 have four hydraulic lines. The three part numbers in the section are rated for 24 MPa, equivalent to 240 bar, and a rotation of 180°.
| Model | Lines / connections | Rotation | Overall length mm |
|---|---|---|---|
| GR 4.10 | 4 × 3/8" | 180° | 230 |
| GR 4.10/L | 4 × 3/8" | 180° | 264 |
| GR 4.12 | 4 × 1/2" | 180° | 246 |
Versions GR 4.10 and GR 4.10/L have Ø 8,5 mm holes and different layouts. The distances between the two holes of a lug are 45 and 50 mm respectively on the drawings; check all mounting dimensions.
For two-line part numbers, see the data sheet GR-2. GR-4 specifications are not general limits for all DEMAC multi-line rotary unions.
Tell us the number of ports, pressure and flow rate, rotational speed and working angle.
