VALUE-ADDING BENEFITS FROM VOONER FLOGARD
CAST STAINLESS STEEL CONE AND ROTOR MINIMIZE VANESLIP
Vooner FloGard’s Stainless Steel Difference For Better Airflow 
Performance Stainless steel dynamically hardens its surface with the formation of chromic oxide. This resists erosive attack from solids and corrosive attack from chemicals. The standard materials for Vooner’s rotors and cones are cast stainless steel. The very close tolerance clearance between the inside ends of the rotor blades and the cone surface of the seal segment can be maintained for long-term retention of performance.

Vooner FloGard’s Stainless Steel Structural Difference
Stainless steel housings and heads can also be supplied in stainless steel for erosion and corrosion protection in very severe service such as when recycled fibers enter the pump, or if white water is used as the sealing liquid.

ORIFICE PLATE TESTING
Measure of airflow at vacuum of installed pumps based on Heat Exchange Institute, HEI standards. Vooner FloGard testing and report writing service basis for operating costs for a number of years.
• Seal water, volume per year
• Electrical energy, kw per year
• Maintenance
• Rebuild

Rusty. Worn. Vaneslip.
With cast iron pumps in operation, the iron oxide (rust) that forms on the rotor and cone surfaces is physically worn away with use, increasing the clearance between the rotor vanes and the seal segment of the cone. This decreases the seal which is to prevent the high pressure gas of the discharge segment from entering into the vacuum inlet segment of the pump.
The portion of the discharge gas that does not get discharged out of the pump, but leaks past the seal clearance between the vane of the rotor and seal segment of the cone is called VANESLIP. VANESLIP allows high-pressure gas to enter the inlet segment and therefore robs space for new inlet air to enter the pump, thereby reduces the flow of vacuum gas from being removed from the process.

Dewatering solutions for paper mills
Vooner offers dewatering solutions for paper mills and reduces the cost of dewatering paper. Dewatering fabric on a paper machine consumes energy to physically remove particles of water.  If the vacuum pump is worn and airflow is down to 60% of original, energy and pump seal water is wasted and the white water must be removed thermally from the paper with steam in the dryer section to thermally vaporize the moisture at a much higher use of BTU energy/pound of water removed than used by vacuum pumps.

Vooner is a design and manufacturing company of paper and fabric dewatering equipment for paper machines.  In 1981,  the foundation of VPM was developed to provide rugged vacuum boxes and oscillating showers to clean the newer technology of man-made fiber paper machine fabrics. Vooner FloGard^® Corporation acquired the core of VPM in 2003 from Nash Elmo.  VPM provides a systematic approach to paper machine fabric conditioning to dewater paper including the power of Vooner FloGard liquid ring cone ported vacuum pumps.

To insure economic performance Vooner offers performance testing of dewatering equipment such as vacuum boxes, showers, piping, and vacuum pumps. Vooner uses the orifice plate method for measuring actual airflow at vacuum levels for a pump. The performance test results are put into a report which shows the total wasted energy and the seal water included in the lifetime cost of ownership. From this report, Vooner’s engineering staff is available to propose a new improved vacuum pump with a return of investment (ROI) for a new pump.  Vooner relies on the TAPPI TIPs for recommended size vacuum system equipment.

ONE STOP SHOPPING
Vooner offers one stop shopping for paper machine dewatering equipment components. In the press section Vooner supplies:

1. Vacuum / uhle boxes
2. Cleaning showers, oscillating for fabrics
3. Oscillators for cleaning shower
4. Lubrication showers for vacuum box strips
5. Nozzles
6. Strips and covers for vacuum boxes
7. Separators of vacuum process water, barometric drop legs, unloader pumps
8. Weir tanks
9. Gravity strainers of fibers from white water
10. High pressure shower water pump
11. Liquid ring vacuum pumps and discharge separators
12. Cooling tower to remove vacuum pump heat of compression

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VOONER - Member of the AERZEN GROUP
Vooner FloGard has over 30 years of experience with corrosion and erosion-resistant vacuum pump applications, including patented vacuum pump designs and vacuum system engineering capabilities. In addition, Vooner is an original equipment manufacturer for complete vacuum systems for slurry dewatering, evaporation, pneumatic conveying, condenser exhauster, and felt cleaning in paper mills.