MLX Sliding Vane Pumps

Model MLX Sliding Vane Pumps, part of the Heavy Duty Line, are designed for handling all types of liquids from light non-lubricating to viscous abrasive slurries and waste oils. The MLX pump features internal mechanical seals with external ball bearings. The hub assembly in this model features external grease-lubricated spherical roller bearings and can be fitted with a wide selection of Blackmer® mechanical seals. Options include hardened or wear resistant internal components.

Features and Benefits
  • Available with internal mechanical seals with external ball bearings
  • Modular bearing hub assemblies allow these pumps to be easily reconfigured in the field
  • Optional wear hardened parts available for abrasive applications
  • Jacketed pump head option for high temperature operation
  • Ductile-iron construction with bolt on, internal relief valve
  • Blackmer mechanical seal and ball bearing construction provide maximum reliability
  • Symmetrical bearing support assures even loading and wear for long life
  • External ball bearings are isolated from pumpage by mechanical seals to maximize bearing life and minimize contamination risk
  • Adjustable relief valve protects pump against excessive pressures
  • Advantages of sliding vane technology:
    • Unique sliding-vane pump design self-adjusts for wear to maintain flow rates
    • Excellent self-priming and dry-run capabilities
    • Sliding vane design provides sustained performance and trouble-free operation
    • Easy maintenance: vanes can be easily replaced without removing the pump from the piping system
    • High suction lift and line-stripping capabilities
    • Low maintenance and low life-cycle costs
Application
  • Chemicals
  • Petroleum
  • Paint and coatings
  • Pulp and paper
  • Food processing
  • Asphalts

Performance and Specifications

AVAILABLE MODELS
  • MLX4
NOMINAL FLOW RATE RANGE
  • 35 - 590 gpm (132 - 2,233 L/min))
DIFFERENTIAL PRESSURE
  • 200 psi (13.8 bar)
MAXIMUM WORKING PRESSURE (MAWP)
  • 250 psi (17.2 bar)
VISCOSITY
  • 0.2 - 21,000 cP
TEMPERATURE
  • -25°F to 240°F (-32°C to 115°C)
MIN/MAX SPEED (RPM)
  • 68 - 600
CONNECTION ORIENTATION
  • Side Inlet | Side Outlet
VANE MATERIALS
  • Laminate
  • Bronze
  • Hardened Steel
AVAILABLE CERTIFICATES
  • Hydrostatic Test
  • Performance Test
  • Material (actual or typical)
  • Dimensional (pump only or unit)
PRIMARY MATERIALS OF CONSTRUCTION
  • Ductile Iron
Model
Length
Weigth
Height
Approx W.

MLX

in
mm

22
558.8

29-1/4
739.8

27-3/8
695.3

393 lb
179 kg

Part

Casing, Heads, Hubs

Liner

Discs

Material

Ductile Iron: ASTM 536

Ductile Iron: ASTM 536
Hardened Ductile Iron: ASTM 536

Cast Iron: ASTM A48
Hardened Cast Iron: ASTM A48

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