MG500 Liquid Ring Vacuum Pump

Stability in the harshest process conditions, oil-free and without mechanical wear. An engineered solution for stable vacuum in complex industrial processes.

Liquid Ring Technology

The MG500 vacuum pump uses advanced liquid ring technology to deliver vibration-free, oil-free and highly reliable performance, making it a smart replacement for erosive blade pumps and noisy dry vane pumps.

Vacuum pump MG500

Vacuum Pump MG500

Key Specifications

Max relative vacuum800 mbar (up to 50 mbar abs with ejector)
Nominal suction capacity500 m³/h
Motor power15 kW (20 HP)
Rotational speed1450 rpm
Suction / discharge diameter4 in / 4 in
Service water connections1 in
Required water volume3 to 6 m³/h
Body materialGrey cast iron GG25 with electrostatic paint
Impeller materialStainless steel (optional: 316)
Shaft materialStainless steel
Sealing typeSingle mechanical seal (optional: double)
Noise levelLess than 78 dB at 1 meter
Approximate weight395 kg
Dimensions (L×W×H)1200 × 650 × 550 mm

Permissible Operating Conditions

Service fluid temperature5 to 50 °C
Ambient temperature0 to 45 °C
Max discharge pressure1/2 bar absolute
Permitted gasesAir, water vapor, non-corrosive chemical gases

Competitive Advantages

  • ✓Stability against steam and liquid droplets
  • ✓Resistant to process contaminants
  • ✓Significant reduction in repair costs (MTBF > 40,000 h)
  • ✓Fully oil-free operation
  • ✓Energy efficiency and easy start-up (no priming)
  • ✓Fluid recovery capability with up to 70% water savings
  • ✓Quiet operation with minimal vibration
  • ✓Thermal management and gas scrubbing (isothermal operation)

Industrial Applications

  • Chemical and petrochemical
  • Power plants and energy
  • Food and beverage
  • Pharmaceutical and hygiene
  • Pulp and paper
  • Water and wastewater treatment
  • Mining and flotation
  • Aquaculture and fisheries
  • Textile and dyeing
  • Printing and packaging
  • Construction and ceramics
  • Laboratories and research centers

Key Installation and Start-up Notes

  • ✓Level and solid foundation (at least 3× pump weight)
  • ✓Flexible anti-vibration connections on suction and discharge lines
  • ✓Mandatory 1000-micron mesh filter on the service water inlet
  • ✓Drain pump water in winter and during long shutdowns (prevent freezing)

Warranty, Services and Spare Parts

12-month warranty and 10-year supply of original spare parts. On-site service and maintenance contracts available. Permanent spare parts inventory at the central warehouse with fast delivery.

Parts in stock: Complete mechanical seals (sizes 25, 30, 40 mm), bearings, gasket and O-ring kits, impeller and body (cast iron and stainless).

Contact our specialists for pricing and purchase

For technical specifications, model selection advice or ordering the MG500 vacuum pump, get in touch with us.

Address: Tabriz — beginning of Tabriz-Azarshahr highway, Petrochemical road