Product Spotlight: Atlantic Fluidics A Series Single-Stage Liquid Ring Pumps

Product Spotlight: Atlantic Fluidics A Series Single-Stage Liquid Ring Pumps

February 08, 2018


by Katy Manning

MD-Kinney Atlantic Fluidics A Series Single Stage Liquid Ring Pumps

A series pumps are not as susceptible to cavitation compared to the flat plate design because the flow path through the pump is an axial flow. This allows the velocity through the pump to be unchanged and carries the air out effortlessly. It is not unusual for these pumps to run 24/7 operation for years without maintenance. A series pumps are vibration-free and environmentally friendly with no oil used for lubrication, and no oil discharged to atmosphere. Complete, self-contained systems including liquid recovery and recirculation are available.


• Simplistic in design, rugged in construction
• Built to run in the most severe of industrial conditions
• Unique design allows pump to operate flooded,
  without damage
• Flat power curve over entire vacuum range prevents motor
• No contact between operating components in the casing
• Pull down to 29” Hg - 25 Torr (33 mbar a)
• Increased water handling capability prevents heat build-up,
  extends life of single mechanical seal
• Reduced stress on motor shaft and bearings
• Available in stainless steel, bronze, or cast iron (A200 & A300 models available in cast iron)
• Compact, close-coupled design eliminates need for
  interstage manifold or motor alignment

A5-A20 Performance Curve (60 Hz)

Tuthill A5-A20 Performance Curve

A75-130 Performance Curve (60 Hz)

Tuthill A75-A130 Performance Curve

AF 200-300 Performance Curve (60 Hz)

Tuthill A200 A300 Performance Curve

Materials of Construction:
Casing, Cover, Rotor, Port Cylinder:

All Bronze, Cast Iron/Bronze, All Stainless Steel

Drive Options:
Pedestal Frame

Close-coupled motor

Mechanical Seals: 

Viton: Cast Iron Bronze fitted, All Bronze, Stainless Steel




Stocked Motors:
TEFC-3 Phase

TEFC-Single Phase

Optional Motors:

XP Class I, 3 Phase

XP Class 1 Single Phase

Contact Provac Sales, Inc. representative for pricing and availability. 

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