DEMAC range · Quotations and technical advice on request
HDAtex rotary unions with 4, 5 or 8 lines for hydraulic oil. Six part numbers to identify by BSP passages, drawing and ATEX documentation.
| Product type | Rotary union |
|---|---|
| Number of lines | 4 hydraulic lines, 5 hydraulic lines, 8 hydraulic lines |
| Application | High-pressure hydraulics, Mobile machinery and cranes, Oil |
| Pressure | 350 bar |
| ATEX zone | Yes |
| Maximum fluid temperature | 80 °C |
| Technical drawings | HDAtex75.4D HDAtex95.4E HDAtex145.DE2F HDAtex95.3C2E HDAtex145.D2F2G HDAtex145.2BC2D2EF Separate drawings apply to different part numbers or configurations. Check the captions to select the matching drawing. |
The rotary unions HDAtex are available as six part numbers with 4, 5 or 8 lines for hydraulic oil. For a replacement, send the full part number, a nameplate photograph and the connection drawing of the existing union.
| HDAtex part number | Lines | Passages: BSP fitting / DN / maximum flow rate | Mass |
|---|---|---|---|
| HDAtex75.4D | 4 | 1 to 4: 3/4" / 19 mm / 150 l/min | 21 kg |
| HDAtex95.4E | 4 | 1 to 4: 1" / 25 mm / 200 l/min | 36 kg |
| HDAtex145.DE2F | 4 | 1–2 : 1 1/4" / 32 mm / 220 l/min ; 3 : 1" / 25 mm / 200 l/min ; 4 : 3/4" / 19 mm / 150 l/min | 64 kg |
| HDAtex95.3C2E | 5 | 1–3 : 1/2" / 12 mm / 80 l/min ; 4–5 : 1" / 20 mm / 200 l/min | 31 kg |
| HDAtex145.D2F2G | 5 | 1 : 3/4" / 19 mm / 150 l/min ; 2–3 : 1 1/4" / 32 mm / 220 l/min ; 4–5 : 1 1/2" / 38 mm / 250 l/min | 90 kg |
| HDAtex145.2BC2D2EF | 8 | 1–2 : 3/8" / 10 mm / 60 l/min ; 3 : 1/2" / 12 mm / 80 l/min ; 4–5 : 3/4" / 19 mm / 150 l/min ; 6–7 : 1" / 25 mm / 200 l/min ; 8 : 1 1/4" / 32 mm / 220 l/min | 94 kg |
Rotor and stator connections are identical for each passage above. DN 20 for the 1" passage on HDAtex95.3C2E is as stated in its data sheet.
| Parameter | Catalogue value |
|---|---|
| Fluid | Hydraulic oil |
| Working pressure | 350 bar |
| Test pressure | 400 bar |
| Maximum rotational speed | 15 rpm |
| Operating temperature | −20 to +80 °C |
| External finish, shaft and body | Galvanised |
ATEX identification. The six HDAtex catalogue sheets bear the markings II 2 G IIB T4 and II 2 D c T135°C, with reference TÜV NORD 14 ATEX 35140794. The documentation must be checked for the relevant part number and installation.
Standard HD part numbers shown on the same sheets must not be confused with HDAtex part numbers. For identification and documents to gather, see the page applications in potentially explosive ATEX atmospheres.
Tell us the number of ports, pressure and flow rate, rotational speed and working angle.
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