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HyVac Liquid Ring Vacuum Pumps


HydroVac single and multi-stage liquid ring vacuum pumps are used to provide vacuum to 29 inches of mercury (25 Torr, 25mm Hg vacuum) for a wide range of applications. In addition to medical and laboratory service, HydroVac pumps are used in industrial applications such as filters, sterilizers, autoclaves, evaporators, vacuum pans, and cookers... wherever vacuum is necessary to operate.  They are especially valuable and reliable source of vacuum when the user expects moisture or water generation from the process.

Principle of Operation
The HydroVac vacuum pump consists of a shrouded rotor rotating freely within an eccentric casing. There is no metal-to-metal contact between the rotor and the casing. Centrifugal force acting on the liquid seal within the pump causes the liquid to form a gas capturing ring inside the pump body creating vacuum. A fixed port cylinder inside the rotor directs the gas into the suction ports. Gas is trapped between the rotor blades by the liquid pistons as the liquid seal recedes from the port cylinder.  The gas is trapped at the point of maximum eccentricity and is then compressed by the liquid ring as it is forced radially inward toward the central port cylinder. After each revolution, the compressed gas and accompanying liquid are discharged through the exhaust port.

During the pumping cycle the gas is in intimate contact with the sealing liquid and compression is nearly isothermal. When handling saturated vapor-gas mixtures the liquid ring acts as a condenser, greatly increasing the effective capacity of the pump.

HydroVac vacuum pumps cover a wide range of applications from 10 to 280 ACFM at vacuum to 29 inches of mercury (25 Torr). These pumps are ideally suited for wet vacuum applications or where condensable vapors are present.   Because there is a selection regarding materials of construction, the application can be attacked with either bronze or stainless steel pumps. 

We have featured the one pump at this time but we have many others in this category with differing flows and differing pressures.  Simplex or Duplex systems.  Once thru or self contained/full recovery packages.

Standard End user Applications Include

Filters

Evaporators   Sterilizers       De-aerators  
Autoclaves  Vacuum Pans Vacuum Cookers Vacuum Ovens  
De-gasifies Extruders Soil Remediation House Vacuum

 

MODEL

CFM@ 28”

INLET NPT

Length

Width

Height

Weight

Motor

505

9.5

17.3”

6.5”

65

2

1505

19

18.8”

8.0”

80

3

2010

27

21.0”

8.0”

100

5

7530

59

23.1”

10.5”

9.6”

200

7.5

10030

84

25.6”

10.5”

9.6”

230

1

    All dimensions are in inches. Dimensions are based on 3-phase TEFC motors. 

    Dimensions are accurate at time of printing and are subject to change without notice; 

    Please consult factory for up to date information.  

 

End User Benefits
  • Rugged Simplified Construction
    All components are designed for 24 hour per day continuous service under the most demanding industrial conditions.
  • Environmentally Clean
    No oil used for lubrication or sealing. No oil vapor discharged to the atmosphere.
  • High Vacuum Characteristics
    Exclusive axial flow design permits efficient operation in the full vacuum range from 0 to 29 inches of mercury (760-25 Torr).
  • Advanced Design
    Employs mechanical seal and O-ring gaskets for zero leakage.
  • Vibration less Operation
    No special foundations required.
  • Constant Power
    Power requirements are constant over the full vacuum range. Non-overloading.
  • Low Maintenance
    No metal-to-metal contact between rotating and stationary elements.

 

 HydroVac 505 with 2HP Open motor, bronze construction and Buna seals.

Once Through Package

Containing seal water line, shut off line, Y strainer, solenoid valve and flow 

control valve, 2 to 3 gallons per minute water demand, discharge separator, check valve, 

isolation valve and vacuum gauge.

HydroVac 505 with 2HP Explosion proof motor, bronze construction and Buna seals.

Full Recovery Package

Containing seal water tank, full length sight glass, manual drain valve, 

2 liquid level switches, makeup water solenoid, heat exchanger, Y strainer, flow control valve, 

2-3 gallons per minute water demand, inlet check valve, isolation valve and vacuum gauge.

Fully piped and mounted on a steel base.

 Outline Dimensions


11/26/2005 ©Copyright HyVac Products, Inc. All Right Reserved
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