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Salvatore

VSM Close Coupled Liquid Ring Vacuum Pump

Close coupled single-stage liquid ring vacuum pump from Salvatore Robuschi, Italy. Reaches vacuum down to 33 mbar abs with dry air capacities from 12 to 277 m³/h, fitted with a standard IEC motor and available in cast iron or AISI 316 stainless steel.

Key Features

  • Vacuum down to 33 mbar abs
  • Dry air capacity from 12 to 277 m³/h at 50 Hz
  • Close coupled design with standard IEC motor (B3B5 or B3B14)
  • Distribution valve accessible from outside, replaceable in minutes
  • Solid gaskets instead of planar sealant for faster maintenance
  • Patent-pending adjustment with a standard Allen key, no need to remove the impeller
  • Cast iron or AISI 316 stainless steel construction
  • AISI 316 distribution plate and PTFE valves
  • ATEX version available
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Category: Vacuum Pump

Product Description

This close coupled liquid ring vacuum pump from Salvatore Robuschi is a single-stage pump with exhaust valves, mounted directly on a standard IEC electric motor. It reaches vacuum levels down to 33 mbar abs and handles dry air capacities from 12 to 277 m³/h at 50 Hz.

The design focuses on easy maintenance. The distribution valve is accessible from the outside and can be replaced in minutes, solid gaskets replace planar sealants, and a patent-pending adjustment system uses a standard Allen key without removing the impeller. Motors are B3B5 or B3B14 type depending on pump size, and the design gives special attention to optimizing service liquid consumption.

The pump is available in cast iron or AISI 316 stainless steel construction, with an AISI 316 distribution plate and PTFE valves on every version. ATEX versions are available for potentially explosive atmospheres.

Liquid ring vacuum pumps are commonly used for vacuum drying, degassing, filtration, distillation, and evaporation in the chemical, pharmaceutical, plastics, and paper industries.

Technical Specifications

Pump Type Single-stage liquid ring vacuum pump with exhaust valves
Configuration Close coupled (monoblock)
Motor Standard IEC electric motor, B3B5 or B3B14 depending on pump size
Minimum Suction Pressure 33 mbar abs
Maximum Discharge Pressure 1,100 mbar abs
Max Gas Suction Temperature 100°C
Max Service Liquid Temperature 70°C
Capacity Basis Dry air at 20°C, 50 Hz
Size 25-05 1.5 kW motor, 2,850 rpm, 12 to 40 m³/h
Size 40-06 3 kW motor, 1,450 rpm, 40 to 110 m³/h
Size 40-08 4 kW motor, 1,450 rpm, 55 to 148 m³/h
Size 65-08 5.5 kW motor, 1,450 rpm, 96 to 205 m³/h
Size 65-11 7.5 kW motor, 1,450 rpm, 180 to 277 m³/h
Connections G 1" threaded (size 25-05)
DN 40 flanged (sizes 40-06, 40-08)
DN 65 flanged (sizes 65-08, 65-11)
Casing Material Cast iron GJL 200
Stainless steel AISI 316 (CF8M)
Impeller Material Ductile iron GJS 400
Stainless steel AISI 316 (CF8M)
Size 25-05 available with AISI 316 impeller only
Distribution Plate Stainless steel AISI 316 (CF8M)
Valves PTFE
O-Rings Viton
Shaft Seal Single mechanical seal
ATEX Version Available

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