Ehrler & Beck Vakuum- und Drucklufttechnik GmbH
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TRIVAC D 40 B 3Ph 50/60 Hz, B-DOT (DOT 4)

Part number: 1128612 Series: TRIVAC series Manufacturer: Leybold Technology: Oil-lubricated rotary vane vacuum pumps

The Leybold TRIVAC D 40 B is a two-stage, oil-sealed rotary vane vacuum pump of the TRIVAC B series with a pumping speed of 40 m³/h (50 Hz), DN 40 ISO-KF connections and an ultimate pressure of ≤ 2 × 10⁻³ mbar. With a 2.2 kW motor and a water vapour capacity of 1185 g/h, it is suitable for furnaces, metallurgy, freeze drying and as a backing pump for RUVAC Roots pumps. Ehrler & Beck supplies the Leybold TRIVAC D 40 B in two variants with spare parts and accessories.

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  • Pumping speed 40 m³/h 50 Hz 48 m³/h 60 Hz
  • Ultimate pressure 0.6 mbar
  • Rated motor power 2.2 kW 50 Hz 2.2 kW 60 Hz
Available variants
Variant Part number
3Ph 200-240/380-400 V 50 Hz / 200-240/400-480 V 60 Hz 11286
3Ph 50/60 Hz, B-DOT (DOT 4) (selected) 1128612

TRIVAC D 40 B – industrial size with 40 m³/h

The Leybold TRIVAC D 40 B achieves 40 m³/h at 50 Hz and 48 m³/h at 60 Hz (nominal pumping speed 46 m³/h) and, without gas ballast, an ultimate total pressure of ≤ 2 × 10⁻³ mbar. For direct combination with the Roots pumps RUVAC WA(U)/WS(U) 251 and 501, Leybold offers a Roots pump adapter. As fields of application of the TRIVAC B series, Leybold names, among others, metallurgy and furnaces, the automotive industry, refrigeration and air conditioning, freeze-drying systems and fore vacuum for high vacuum pump systems.

Design and function

A cooling channel and a motor-driven fan keep the operating temperature constant, the built-in oil pump allows continuous operation up to an inlet pressure of 1000 mbar, and the oil-pressure-controlled anti-suckback valve prevents oil from flowing back. Water vapour tolerance 40 mbar, water vapour capacity 1185 g/h (50 Hz) / 1420 g/h (60 Hz), oil filling 1.7 / 2.6 l, noise level 57 / 59 dB(A) (without / with gas ballast). The TRIVAC D 40 B-DOT with EPDM seals is operated with brake fluid (DOT 4) and, according to Leybold, is used for filling brake circuits in the automotive industry.

Variants of the TRIVAC D 40 B

The TRIVAC D 40 B is available from Ehrler & Beck in two variants (part numbers 11286, 1128612). The rated motor power is 2.2 kW (50 Hz), the weight ranges from 75.3 to 75.8 kg. Voltage, phase and all further data of the individual variants can be found in the variant selection and under Technical data.

Features and benefits

  • Low ultimate pressure: Ultimate partial pressure below 1 × 10⁻⁴ mbar, ultimate total pressure ≤ 2 × 10⁻³ mbar without gas ballast
  • High water vapour tolerance: Integrated gas ballast
  • Low oil backstreaming: Anti-suckback valve controlled via the oil pressure
  • Continuous operation up to 1000 mbar: Built-in oil pump with pressure-independent lubrication
  • Quiet and low-vibration: Flexible coupling between motor and pump
  • Easy to service: Exchangeable inner body, connections optionally vertical or horizontal
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