Leybold · SOGEVAC BI/DI Single-stage rotary vane vacuum pumps for Analytical Instruments

SV28 BI

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Oil-Lubricated Rotary VaneOEM data

*Photo shows another model from the Leybold Oil-Lubricated Rotary Vane range, not this exact model. Image: Leybold

Pumping speed: 27 m³/h
Ultimate pressure: 0.05 mbar
Weight: 37 kg

Headline ratings converted to common units for comparison; the table below shows each figure exactly as published.

Technical data

Source: Leybold product page · retrieved 2026-10-01

As published	50 Hz; 50 Hz	60 Hz; 60 Hz	without gas ballast	50 Hz; gas ballast std 50 Hz	60 Hz; gas ballast std 60 Hz	50 Hz; 50 Hz 3ph-1ph	60 Hz; 60 Hz 3ph-1ph	50 Hz	60 Hz	(min-max)	Net mass	max. LxWxH	Value
Pumping speed 50 Hz Pumping speed	23 m³/h oem source Source · 2026-10-01
Pumping speed 60 Hz Pumping speed		27 m³/h oem source Source · 2026-10-01
Ultimate total pressure without gas ballast Ultimate pressure			0,05 mbar oem source Source · 2026-10-01
Water vapor tolerance gas ballast std 50 Hz Water vapour tolerance				10 mbar oem source Source · 2026-10-01
Water vapor tolerance gas ballast std 60 Hz Water vapour tolerance					10 mbar oem source Source · 2026-10-01
Water vapor capacity gas ballast std 50 Hz Water vapour tolerance				0,07 l/h oem source Source · 2026-10-01
Water vapor capacity gas ballast std 60 Hz Water vapour tolerance					0,08 l/h oem source Source · 2026-10-01
Nominal motor power 50 Hz Motor power	0,55 / 0,9 / 0,9 kW oem source Source · 2026-10-01
Nominal motor power 60 Hz Motor power		0,66 / 1,1 / 1,1 kW oem source Source · 2026-10-01
Noise level 50 Hz 3ph-1ph Noise level						54-57 dB(A)^R Needs review · excluded from comparison Source · 2026-10-01
Noise level 60 Hz 3ph-1ph Noise level							54-57 dB(A)^R Needs review · excluded from comparison Source · 2026-10-01
Rotor speed 50 Hz								1500 rpm oem source Source · 2026-10-01
Rotor speed 60 Hz									1800 rpm oem source Source · 2026-10-01
Oil capacity (min-max) Oil capacity										1,5 l oem source Source · 2026-10-01
Weight Net mass Weight											37 kg oem source Source · 2026-10-01
Dimensions max. LxWxH Dimensions												423x258x301 mm oem source Source · 2026-10-01
Flange													25 KF KF oem source Source · 2026-10-01

Original extracted values are shown with their source and review status. Multiple values under the same condition remain separate for review.

^R a min–max range as published, not a single rating

Same family: SV120 BI FC, SV 16 DI, SV 55 BI², SV 70 BI²

Explore the parts

SV28 BI, pulled apart

This model’s parts, by where they sit

Our drawing of the machine type, with the SV28 BI's own parts from Leybold's lists. Side view along the shaft. Oil-free (dry) pumps have no exhaust box oil, sight glass or oil filter; their exhaust filter is a dust filter.