The Leybold TRIVAC D 8 B is a high-performance rotary vane vacuum pump designed for demanding industrial applications requiring reliable and efficient vacuum generation. It provides a consistent vacuum across a wide pressure range and is ideal for applications such as process evacuation, chamber evacuation, and vacuum drying.
With its robust design, high efficiency, and low noise level, the TRIVAC D 8 B offers a dependable solution for daily operation. It features long service life, low maintenance costs, and easy handling, making it a cost-effective choice for a wide range of industrial vacuum applications.
TRIVAC D 8 B Technical Data
| Technical Specification | 50 Hz | 60 Hz |
|---|---|---|
| Connection flange suction side | DN 16 ISO-KF | DN 16 ISO-KF |
| Connection flange exhaust side | DN 16 ISO-KF | DN 16 ISO-KF |
| Nominal pumping speed | 9.7 m3/h | 11.6 m3/h |
| Pumping speed | 8.5 m3/h | 10.2 m3/h |
| Ultimate partial pressure without gas ballast | 1.0 x 10-4 mbar | 1.0 x 10-4 mbar |
| Ultimate total pressure without gas ballast | < 2.0 x 10-3 mbar | < 2.0 x 10-3 mbar |
| Ultimate total pressure with gas ballast | < 5.0 x 10-3 mbar | < 5.0 x 10-3 mbar |
| Water vapor tolerance | 25.0 mbar | 25.0 mbar |
| Water vapor capacity | 157 g/h | 157 g/h |
| Operating fluid | LEYBONOL LVO 100 | LEYBONOL LVO 100 |
| Operating fluid quantity min. | 0.3 l | 0.3 l |
| Operating fluid quantity max. | 0.9 l | 0.9 l |
| Sound level according to DIN 45 635 without gas ballast | 50 dB(A) | 50 dB(A) |
| Sound level according to DIN 45 635 with gas ballast | 52 dB(A) | 52 dB(A) |
Variant Technical Data
| Technical Specification | 11255 | 11256 | 140082 |
|---|---|---|---|
| Power connection | 1-ph, 230 V, 50 Hz | 3-ph, 200-240 V ±10%, 50/60 Hz 3-ph, 380-400 V ±10%, 50/60 Hz |
1-ph, 100-115 V ±5%, 50/60 Hz 1-ph, 210-230 V ±5%, 50/60 Hz |
| Motor power | 370 W | 370 W | 570 W 50Hz / 660 W 60Hz |
| Motor speed at 50 Hz | 1,410 min-1 | 1,430 min-1 | 1,420 min-1 |
| Motor speed at 60 Hz | – | 1,735 min-1 | 1,690 min-1 |
| Motor protection class | IP 55 | IP 55 | IP 54 |
| Permissible ambient temperature | +12 to +40°C | +12 to +40°C | +12 to +40°C |
| Dimensions | see dimensional drawing | see dimensional drawing | see dimensional drawing |
| Weight | 21.0 kg | 22.0 kg | 23.0 kg |
Optional Accessories
| Description | Order No. |
|---|---|
| Activated aluminum oxide, 1.3 kg for adsorption traps | 85410 |
| Cryogenic trap TK 4-8 | 18820 |
| Condensate separator AK 4-8 | 18806 |
| Condensate separator AK 8 | 19060 |
| Exhaust filter AF 4-8 | 18906 |
| Exhaust filter with oil return AR 4-8 | 18920 |
| Exhaust filter AF 8 | 19050 |
| Mechanical oil filter unit OF 4-25 | 10191 |
| Chemical oil filter unit CF 4-25 | 10196 |
| Oil drain valve (M16 x 1.5) | 19090 |
| Centering ring ISO-KF, DN 16 ISO-KF aluminum neoprene | 18326 |
| Centering ring ISO-KF, DN 16 ISO-KF aluminum Viton | 18206 |
| Centering ring ISO-KF, DN 16 ISO-KF stainless steel Viton | 88346 |
| Clamp ring ISO-KF, DN 10/16 ISO-KF | 18341 |
Spare Parts
| Description | Order No. |
|---|---|
| Shaft seal replacement kit TRIVAC S/D 4-8 B | EK110002631 |
| Small maintenance kit (without oil) TRIVAC S/D 8 B | EK110002620 |
| Small parts kit TRIVAC S/D 4-8 B | EK110002634 |
| Gasket set TRIVAC S/D 4-8 B | 19720 |
| Internal unit complete TRIVAC D 8 B | E20010991 |
| Dust filter DN 25 ISO-KF | E41170206 |
| Dust filter DN 40 ISO-KF | E41170121 |
Oil
| Description | Order No. |
|---|---|
| LEYBONOL LVO 100, 1 liter | L10001 |
| LEYBONOL LVO 100, 5 liters | L10005 |
| LEYBONOL LVO 100, 20 liters | L10020 |
| LEYBONOL LVO 100, 208 liters | L10099 |




