Leybold SOGEVAC DI&BI series oil lubricated rotary vane vacuum pump

Product positioning and core features

SOGEVAC DI/BI is an oil sealed rotary vane pump designed by Leybold for analytical instruments and low to medium vacuum scenarios. It features a long maintenance free cycle, low noise, and high reliability.

Core advantages:

Maximum 24000 hours (3 years) maintenance free (mass spectrometry application)

Integrated anti backflow valve, automatically closes the air inlet when shutting down/cutting off power

Built in oil mist filter, oil mist discharge<1ppm

Low noise ≤ 61dB (A), low vibration

FC model with frequency conversion+RS485, supporting speed regulation and predictive maintenance

Single phase wide voltage power supply: 200~240V ± 10%, 50/60Hz

Working principle and structure

Working principle: Oil sealed rotary plate structure, oil and gas coarse separation → filter fine filtration → oil return to the oil tank circulation

Structural highlights:

Coaxial design of pump and motor (SV16 DI~SV65 BI FC)

Efficient air cooling, optimizing pump body temperature

Internal circulation lubrication, no external oil pipe

Integrated anti backflow oil valve at the air inlet (effective at<800mbar)

Model and Key Technical Parameters

Model nominal pumping speed (m ³/h) ultimate vacuum (mbar) noise (dB (A)) oil volume (L) interface intelligent interface

SV16 DI 16 ≤0.1 59 2.0 DN25 ISO-KF –

SV28 BI 25 ≤0.05 57 1.5 DN25 ISO-KF –

SV40 BI 42 ≤0.2 60 1.0 DN40 ISO-KF –

SV40 BI FC 50 ≤0.2 ≤59 1.0 DN40/25 RS485

SV65 BI FC 71 ≤0.2 ≤60 2.0 DN40 RS485

SV120 BI FC 147 ≤0.2 ≤61 2.0 DN50/40 RS485

Electrical and Environmental Specifications

Power supply: 200~240V ± 10%, single-phase, 50/60Hz

Power consumption: 0.55~2.2kW

Protection: Overload protection, compliant with EN 61010-1

Certification: EN/UL 61010-1, EMC Class B

Working temperature: Conventional industrial environment

Typical application scenarios

Liquid/Gas Chromatography Mass Spectrometer (LC/GC-MS)

ICP-MS Inductively Coupled Plasma Mass Spectrometry

Electron microscope, turbo molecular pump front-end

Leak detection, freeze-drying, metallurgy, air conditioning refrigeration

Optional accessories and specialized oils

accessories

Mobile base (with casters and oil pan)

Soundproof cover (noise reduction of about 5dB (A))

Multi country specification power cord

special oil 

LVO 700: synthetic oil, suitable for GC/LC-MS

LVO 420: PFPE fluorinated oil, suitable for ICP-MS

Key issues

What are the core improvements of the SOGEVAC BI FC model compared to the regular BI version?

Answer: The FC model adds variable frequency drive and RS485 digital interface, which can achieve 50-100% speed regulation, operation data monitoring, predictive maintenance, and automatically limit starting and operating currents. It is suitable for ordinary civilian circuit breakers and is more suitable for intelligent automation systems.

How to achieve the anti backflow and environmental protection design of this series of pumps, and what are the key indicators?

Answer: The air inlet is equipped with an anti backflow oil valve, which automatically closes when the machine is stopped/powered off, preventing oil from flowing back into the system; Integrated high-efficiency exhaust filter, achieving oil mist emission of less than 1ppm and no oil mist pollution throughout the entire process.

How long maintenance free cycle can this series of pumps achieve on mass spectrometry analysis equipment, and how to choose the corresponding oil?

Answer: Maintenance free for up to 24000 hours (approximately 3 years) can be achieved on LC/GC-MS and other analytical instruments; LVO 700 synthetic oil is recommended for mass spectrometry, and LVO 420 PFPE fluorinated oil is recommended for ICP-MS anti-corrosion conditions.