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Liquid Ring Vacuum Pump Systems

Single-stage and two-stage systems used in:

  • Chemical & Pharmaceutical Processing
  • Deaeration
  • Extruders
  • Filtration
  • Solvent Distillation
  • Degasifiers
  • Dehydration Evaporators
  • Vacuum Chilling

Please see variants below:

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  • badge2 Warranty Against Defects
  • badge3 Returns & Refunds Policy
  • badge4 Ships Worldwide
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  • Brand
  • CVP Central Liquid Ring Vacuum Systems (Single Stage)
  • ACRP Liquid Ring Vacuum Systems (Two-Stage)
  • DRSP/DRDP Liquid Ring Vacuum Systems (Two-Stage)
  • OFRP Liquid Ring Vacuum Systems (Two-Stage)


Tuthill has been manufacturing industrial pumping solutions on the southside of Chicago since 1927 with a clear value-differentiation in the marketplace and focused growth in life-foundational markets. Ali Yaqoob Trading represents Tuthill's Process Pumps, Lubrication & Circulation Pumps, Vacuum Pump, Flow Meters, and Blowers divisions.

Model: Simplex: CVP-A5S through CVP-A130S; Duplex: CVP-A5D through CVP-A130D

CVP Central Vacuum Systems provide a remote supply of plant vacuum which can be located away from the production area or vacuum outlets, thus reducing noise and heat in the work area. The systems feature the “A” Series single-stage liquid ring pumps in either a simplex (one pump) or duplex (two pumps) design. The energy-efficient systems are designed to operate automatically, with the pump(s) starting when the plant vacuum demand increases, and stopping when the demand is met. Vacuum is maintained by means of pressure switches which cycle the pump(s). These systems require only water and electric power connections. A solenoid valve on the seal water line provides water whenever the pump(s) cycle.


  • “Abuser-friendly” axial flow pump design
  • Quiet, vibration-free operation
  • Bronze construction liquid ring pumps, TEFC motor(s)
  • Galvanized steel ASME code (100 PSIG [6.89 bar g]) vacuum receiver
  • Air discharge water separator silencers for quiet operation
  • Flow ranges:
    • Simplex: 10 – 125 CFM (17 – 212 m³/h)
    • Duplex: 20 – 250 CFM (34 – 425 m³/h)
  • Fully instrumented including:
    • Adjustable vacuum switch
    • NEMA 4 control panel
    • Tank level sight gauge
    • Thermostatic valve
    • Solenoid valve
    • Vacuum gauge
Model: ACRP40, ACRP75, ACRP100, ACRP125, ACRP200, ACRP300, ACRP525, ACRP526, ACRP775, ACRP776, ACRP950, ACRP951

ACRP Liquid Ring Vacuum Systems are self-contained with recirculating liquid, liquid to air heat exchanger, and instrumentation.

ACRP Liquid Ring Vacuum Systems are fully assembled with all required system piping, and are fully tested prior to shipment.  These air-cooled and self-contained vacuum systems require no make-up sealant or cooling water.

Flow ranges to 1000 CFM (1700 m³/h).



  • KINNEY KLRC Compound Liquid Ring Vacuum Pump with mechanical seals
  • Liquid to air heat exchanger
  • Flow range: 20 – 1000 CFM (35 – 1700 m³/h)
  • Vacuum levels to 29.5 Hg (-100 kPa g)
  • Steel exhaust separator tank
  • Discharge liquid mist eliminator with drain valve and return line
  • Seal fluid instrumentation package including:
  • Seal line thermometer
  • Seal line valving
  • Compound vacuum/pressure gauge
  • Quiet, vibration-free operation
  • Many optional accessories available
Model: Simplex: DRSP75, DRSP100, DRSP125, DRSP200, DRSP300, DRSP525, DRSP526 – Duplex: DRDP75, DRDP100, DRDP125, DRDP200, DRDP300, DRDP525, DRDP526

Kinney® Duplex and Simplex Liquid Ring Vacuum Pump Systems are fully assembled with all interconnecting wiring and piping.  They are available as single pump systems or duplex systems for rapid pumpdown and alternating usage and wear. Systems are mounted on a common steel base and fully tested and painted before shipment.  NOTE:  Photo here shows the optional all stainless steel package; no control panel shown.


  • Completely self contained
  • Designed for long life
  • Insensitive to contamination
  • Easy to install and maintain
  • Fully assembled and wired



  • Circulating pump
  • Seal water level controls
  • Custom electrical controls
  • Receiver tanks
  • All stainless steel package
Model: OFRP75, OFRP100, OFRP125, OFRP200, OFRP300, OFRP525, OFRP526

Kinney® Oil-Filled Liquid Ring Vacuum Pump Systems are fully assembled with all interconnecting wiring and piping. Systems are mounted on a common steel base and fully tested and painted before shipment. They include oil sealing to afford deeper vacuum than available with water or glycol sealed systems. Systems consist of a single compound liquid ring vacuum pump with mechanical seals and following system components:

  • Suction line flexible connector
  • Suction line isolation valve
  • Suction line check valve
  • Adjustable vacuum control switch
  • Oil/water heat exchanger
  • Oil thermometers, valve and compound pressure gauge
  • Cooling water solenoid valve, strainer,flow control valve sensing oil temperature and thermometer
  • Steel exhaust separator tank
  • Discharge oil mist eliminator with relief valve and oil return line
  • Drive motor TEFC
  • Motor control center with magnetic motor starter, HOA switch and fusible disconnect switch
  • Completely self contained
  • Designed for long life
  • Higher vacuum than with water-sealed systems
  • Completely recirculated sealing fluid
  • Easy to install and maintain
  • Fully assembled and wired

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