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Busch · DOLPHIN LB 3809/4409 A

DOLPHIN LB 4409 A

Data coverage & sourcesCompare this modelAsk about this model
Liquid RingOEM data15 values carry a verification flag
Busch DOLPHIN LB 4409 A

Image: Busch

Ultimate pressure
33.3 mbar
Noise level
85 dB(A)
Weight
2,340 kg

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

Technical data

Source: Busch product page · retrieved 2026-10-01
As publishedISO 50 HzISO 50 Hz; (ISO 3744), 1 m distance, at medium loadISO 50 Hz; approx.ISO 50 Hz; (L x W x H)ISO 60 HzISO 60 Hz; (ISO 3744), 1 m distance, at medium loadISO 60 Hz; approx.ISO 60 Hz; (L x W x H)US 60 HzUS 60 Hz; (ISO 3744), 1 m distance, at medium loadUS 60 Hz; approx.US 60 Hz; (L x W x H)
Nominal pumping speed
Pumping speed
2600 – 4400 m³/h m³/hR
Needs review · excluded from comparison
Source · 2026-10-01
2600 – 4400 m³/h m³/hR
Needs review · excluded from comparison
Source · 2026-10-01
1530.3 – 2589.7.6 ACFM .6 ACFMR
Needs review · excluded from comparison
Source · 2026-10-01
Ultimate pressure
33 hPa (mbar) hPa (mbar)
oem verified
Source · 2026-10-01
33 hPa (mbar) hPa (mbar)
oem verified
Source · 2026-10-01
25 Torr Torr
oem source
Source · 2026-10-01
Max. overpressure
2 bar(g) bar(g)
oem source
Source · 2026-10-01
2 bar(g) bar(g)
oem source
Source · 2026-10-01
Nominal motor rating
Motor power
90 – 185 kW kWR
Needs review · excluded from comparison
Source · 2026-10-01
90 – 185 kW kWR
Needs review · excluded from comparison
Source · 2026-10-01
120.7 – 248.1 hp hpR
Needs review · excluded from comparison
Source · 2026-10-01
Nominal motor speed
Speed
465 – 700 min⁻¹ min⁻¹R
Needs review · excluded from comparison
Source · 2026-10-01
465 – 700 min⁻¹ min⁻¹R
Needs review · excluded from comparison
Source · 2026-10-01
700 rpm rpm
oem source
Source · 2026-10-01
Sound pressure level (ISO 3744), 1 m distance, at medium load
Noise level
85 dB(A) dB(A)
oem source
Source · 2026-10-01
85 dB(A) dB(A)
oem source
Source · 2026-10-01
85 dB(A) dB(A)
oem source
Source · 2026-10-01
Weight approx.
Weight
2340 kg kg
oem verified
Source · 2026-10-01
2340 kg kg
oem verified
Source · 2026-10-01
5159 Lbs. Lbs.
oem verified
Source · 2026-10-01
Dimensions (L x W x H)
Dimensions
2150 x 950 x 1410 mm mm
oem source
Source · 2026-10-01
2150 x 950 x 1410 mm mm
oem source
Source · 2026-10-01
84.6 x 37.4 x 55.5 inches inches
oem source
Source · 2026-10-01
Gas inlet
Inlet connection
DN 200 PN 10
oem source
Source · 2026-10-01
DN 200 PN 10
oem source
Source · 2026-10-01
8" "
oem verified
Source · 2026-10-01
Gas outlet
Outlet connection
DN 200 PN 10
oem source
Source · 2026-10-01
DN 200 PN 10
oem source
Source · 2026-10-01
8" "
oem verified
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: DOLPHIN LB 3809 A

Reviewed operating performance · 60 Hz

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Service parts

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