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Pumps for emptying tank wagons

Boerger LLC
Boerger Pump for emptying tank wagons

Pumps for emptying tank wagons

By: Boerger

A petrochemical company uses two ONIXline rotary lobe pumps for emptying tank wagons. The pumps with dry-run capability convey methyl tert-butyl ether (MTBE) and 2,2,4-Trimethylpentane (isooctane) from the wagons to storage tanks. Due to the high chemical aggressiveness of the pumped media, pump casings were made of stainless steel. The fluids are pumped nearly without pulsation due to the steel rotors with screw profile.

All O-rings are made of perfluoroelastomers (FFKM) to prevent floating even when they are in contact with the pumped media.

The self-priming pumps are installed in potentially explosive atmospheres and, therefore, have an ATEX-compliant design.

The customer is very satisfied with the powerful ATEX pumps. Tank wagons are emptied within a few minutes. The pumps have no problems with the working pressure of up to 8 bar.

Boerger Pump for emptying tank wagons (1)

Application data:
Pump type: Börger ONIXline BL 190
Pumped medium: MTBE, isooctane
Viscosity: 0.7 mPas
Temperature: 20 – 40°C
pH level: Neutral
Flow rate: 15 m3/h
Speed: 450 rpm
Working pressure: 8.0 bar

Technical data:
Casing: Stainless steel, 1.4409
Casing protection plate: Hard metal
Static O-rings: FFKM
Shaft seal: FC cartridge
Rotors: Dual-lobe, screw profile, Primus, steel 1.7225
Drive: Variable speed gear motor

Benefits of this ONIXline BL 190

  • Pressure-resistant
  • Pump made of stainless steel
  • Quick emptying of tank wagons
  • Self-priming
  • Short-term dry-run capability
  • Steel rotors with screw profile for low pulsation
  • ATEX-compliant design
  • Ease of maintenance with MIP (Maintenance in Place)

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