DulcoFlex%20Pumps

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DulcoFlex Pumps
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AGENDA

• Peristaltic Pump Theory
• Peristaltic Pump Features Benefits
• Peristaltic Pump Limitations
• Roller versus Shoe Technology
• Hose life
• DulcoFlex product line
• DulcoFlex features
• Applications
• Summary

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DulcoFlex History
Date Event
1995 Boyser Bombás founded by Juan Jofresa in Barcelona Spain
2001 Fisher Process Industries signs a 5 year exclusive distributor agreement with Boyser Bombás to represent the Boyser peristaltic pump in North America.
2006 The agreement is extended and Periflo pumps now markets themselves as a manufacturer
01/01/2009 ProMinent Fluid Controls of Heidelberg Germany purchases Boyser Bombás.
10/04/2010 Pulsafeeder purchases Periflo Pump Company from Fisher Process Industries
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DulcoFlex History
Date Event
10/31/2011 Periflo Pumps contract with Boyser Bombás is cancelled.
02/23/2011 ProMinent USA launches the Boyser Bombás product line under the DulcoFlex trademark.
04/19/2011 Periflo Pumps is now directed to purchase all Boyser Bombás products through PFC USA
04/20/2011 Periflo Pumps ceases to purchase pump components from PFC USA
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Peristaltic Pump Theory

• Peristalsis (peristalses) n. pl.
• The wavelike contractions of a tubular structure
  that propel the contents forward by alternate
  contraction and relaxation.
• As the rotor of the pump rotates the fluid is
  gently pushed forward until it is expelled
  through the discharge. In a peristaltic pump
  this occurs twice per revolution.

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Peristaltic Pump Theory

• Peristalsis is regarded as one of the simplest
  and most efficient means of pumping fluids.

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• Peristaltic Pump
• Features Benefits

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Peristaltic Pump Features Benefits

• Seal-less Design
• With the hose being the ONLY contact point of the
  material, there is no need for any sealing
  devices whatsoever!
• Other PD pumps require mechanical seals, packing
  glands or ball checks.
• Since the fluid is held hostage inside the hose,
  no mechanical components are susceptible to
  corrosion and wear.

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Peristaltic Pump Features Benefits

• Accurate dosing.
• Because of such a high volumetric efficiency, the
  hose and tubing pumps make excellent dosing and
  metering pumps.
• With repeatability they are accurate to /- 1
  when dosing and metering.

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Peristaltic Pump Features Benefits

• Self Priming
• The peristaltic hose pump is the ONLY PD pump
  capable of pulling a dry vacuum of 29.5 feet (9
  meters) making it the best suction lift PD pump
  available.

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Peristaltic Pump Features Benefits

• Reversible.
• Since there are no sealing devices required for a
  hose or tubing pump, they can be run in either
  direction.
• Reversing a pump can be an effective way to clear
  suction line blockages.

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Peristaltic Pump Features Benefits

• Low maintenance costs.
• The only repair parts required for peristaltic
  pumps are hoses or tubes. (NOTE Shoe pumps
  also require replacement lubricant.)
• A typical hose/tube replacement takes less than 2
  hours and the pump does not need to be removed
  for service.
• Most replacement tubes/hoses cost less than 10
  of the purchase price of the pump!

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Peristaltic Pump Features Benefits

• Run Dry
• Some PD pumps cannot run dry or risk catastrophic
  failure.
• Hose pumps are totally capable of running dry for
  an undetermined amount of time.
• The peristaltic hose pump can also handle fluids
  with air entrained or gases.

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Peristaltic Pump Features Benefits

• Gentle pumping action.
• Since hose pumps turn at slow speeds, the product
  is gently pushed through the hose with minimal
  turbulence.
• The hose pump is one of the best pump
  technologies available for minimizing damage to
  shear sensitive materials such as water based
  paints and flocculants.

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Peristaltic Pump Features Benefits

• Abrasion resistant.
• Hose life is NOT related to a products abrasive
  qualities.
• Due to the slow speeds and gentle pumping action
  the hose pump is capable of pumping some of the
  more abrasive liquids such as ink, sludge, and
  TiO2

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Peristaltic Pump Features Benefits

• No slip.
• Slip as defined is the action of the positive
  displacement pump to allow some of the pumped
  liquid to be forced back into the cavity which is
  now filling with product.
• Hose pumps are very close to being 100
  volumetric efficient as slip is virtually
  eliminated by the complete compression of the
  hose.

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• Peristaltic Pump
• Limitations

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Peristaltic Pump Limitations

• There are a limited amount of elastomeric
  materials available for hose manufacturing.
  Inevitably there are some chemicals that hose
  pumps will not be able to be used for.
• Example Toluene is not compatible with any
  rubber products associated with hose pumps.
• Sizing. Compared to other PD pump technologies,
  hose pumps have a large footprint.

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Peristaltic Pump Limitations

• Maximum flow rates typically are around 230 gpms.
• Temperature is restricted based on hose
  selection. The highest temperature condition is
  210º F.
• There are pressure limitations based on pump
  speed. The faster the pump speed the lower the
  output pressure. Maximum pressure for DulcoFlex
  hose pumps is approximately 232 psi.

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Peristaltic Pump Limitations

• Pulsation
• All peristaltic pumps pulsate. This pulsation
  can affect sensitive in-line equipment such as
  flow meters and can cause excessive vibration in
  pipe lines.
• It is recommended that a pulsation dampening
  device be installed near the pump discharge.

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• Roller
• versus
• Shoe
• Technology

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Roller versus Shoe Technology

• SLIDING SHOE TECHNOLOGY
• A set of fixed shoes slide over the surface of
  the hose causing it to compress the hose twice
  per revolution.
• Since the compression causes friction heat, the
  chamber is filled with a glycerin based food
  grade lubricant.

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Roller versus Shoe Technology

• ROLLER TECHNOLOGY
• Rollers are mounted on permanently greased
  bearings.
• This allows the rotor to rotate smoothly during
  compression.
• The hose and outer roller surface are lubricated
  with silicon grease which reduces friction
  creating a lower starting torque, lower operating
  torque and less mechanical stress on the hose.

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Roller versus Shoe Technology

• Because of reduced hose stress, roller pumps can
  increase hose life by 30 over shoe compression
  pump hose life!
• Because of reduced torque, the roller pumps
  typically consume less HP.
• Roller technology is limited to 116 psi (8 bar)
  operating pressures. Shoe technology is suitable
  for operating pressures to 232 psi (16 bar ).

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Roller versus Shoe Technology

• Shoe pumps have a difficult time maintaining
  system pressure when operated below 3 rpms.
  However, a similarly sized roller pumps can
  maintain system requirements at speeds below 1
  rpm!

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• Hose
• Life

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Hose Life

• Factors affecting hose life
• Speed
• Temperature
• Process chemical
• Discharge pressure
• Suction conditions

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Hose Life

• SPEED KILLS!
• The single biggest impact on a hoses life is
  speed.
• With a hose life expectation of 10,000,000
  restitutions before performance decline, you can
  see how the proper selection of the pumps speed
  is so critical.
• 10,000,000 / 2 / pump rpm / 60 approximate hose
  life.
• 10,000,000 / 2 / 40 / 60 2083 hrs.
• 10,000,000 / 2 / 30 / 60 2778 hrs.
• By selecting a pump 10 rpms slower, the hose life
  expectation increases by 25!!!

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Hose Life

• Typical hose life curve DFC pumps

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Hose Life

• Temperature
• Higher operating temperatures can cause the hoses
  to swell.
• This makes it more difficult to compress the
  hoses.
• DulcoFlex hoses are limited to 175º F on the NR,
  NBR and Hypalon.
• The EPDM hose has a temperature limit of 210º F

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Hose Life

• Process Fluid
• Peristaltic pumps have a limited availability of
  hose materials.
• Selecting the wrong material can cause premature
  failure of the hose/tube.
• For example
• A fluid containing oils or fats/greases is not
  compatible with natural rubber. NBR would be the
  hose of choice.
• There are numerous chemical compatibility charts
  available to help select the correct hose
  material.

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Hose Life

• Suction Conditions
• Extremely high suction lifts can cause premature
  wearing of a hose.
• At greater lifts, the hose has a hard time
  restoring itself to its original shape.
• If the hose does not reconstitute itself back to
  its original shape, there is a reduction in the
  flow.
• A vacuum device can be installed to help the hose
  reclaim its original shape.
• Discharge Pressure
• Extremely high discharge pressures make it very
  difficult for the roller or shoe to completely
  compress the hose.
• Slip can increase causing a decline in
  performance

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Hose Life

• DulcoFlex reinforced hoses are manufactured to
  very specific engineered tolerances.
• The nylon reinforcement is hand wrapped assuring
  good quality control.
• The frequency of the wrap is also important.
• Increasing the frequency of the wrap extends hose
  life.

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Hose Life
Competitors hose. Less frequency of reinforcements
DulcoFlex hose. More frequency of reinforcements
longer life!
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Hose Life

• DulcoFlex reinforced hose available in
• Natural Rubber (175º F max)
• Nitrile Buna Rubber (FDA approved) (175º F max)
• EPDM (175º F max)
• Hypalon (175º F max)
• DulcoFlex tubing available in
• Norprene (30 psi max)
• Tygon (30 psi max)

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• DulcoFlex
• Product
• Line

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DulcoFlex Product Line
DULCOflex
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DulcoFlex Product Line

• DFAa Tubing Pump Series
• Flow range .05 gph to 190 gph.
• Working pressure 30 psi max.
• 3 roller design.
• Suction lift to 15.
• Tube sizes
• .8mm, 1.6mm, 2.4mm, 3.2mm, 6.4mm, 8.0mm
• Wall thickness 1.6mm 2.4mm
• Tube materials Norprene, Tygon.
• Easy tube replacement.
• Reversible.
• Low cost maintenance.

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DulcoFlex Product Line

• DFBa Roller Pump Series
• Uniquely designed for reinforced hose OR tubing!
• Heavy duty pump.
• Flow range 0.1 gph 390 gph (6.5 gpm)
• Suction lift approximately 27
• Viscosity to 15,000 cps
• Max pressure
• hose 115 psi
• tube 30 psi
• Sizes available
• 10mm, 13mm, 16mm
• 19mm, 22mm
• NO FILL LUBRICANT REQUIRED

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DulcoFlex Product Line

• DFCa Series Roller Hose Pump
• Medium/High flow
• Heavy duty applications.
• Flow range 1.3 gpm 132 gpm.
• Max pressure 115 psi.
• Self priming to 27.
• Viscosities to 60,000 cps
• Roller technology.
• Cartridge type bearing system.
• Reversible rotation.
• Available sizes
• 30mm, 40mm, 50mm, 60mm, 70mm
• NO FILL LUBRICANT REQUIRED!

DulcoFlex
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DulcoFlex Product Line

• DFD Series Shoe Compression Pumps
• Medium/High flow
• Heavy duty applications.
• Flow range 1.3 gpm 225 gpm
• Max pressure 230 psi.
• Self priming to 29.
• Viscosities to 60,000 cps
• Shoe technology.
• Cartridge type bearing system.
• Reversible rotation.
• Available sizes
• 25mm, 32mm, 40mm, 60mm, 70mm, 80mm, 100mm

DulcoFlex
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• DulcoFlex
• Hose Pump
• Features

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Hose Connection

• The majority of hose leaks occur closest to the
  discharge connection.
• The hose acts like a small accordion and
  because the hose is under system pressure at this
  point most failures occur there.

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Hose Connection

• Several hose pump manufacturers have external
  hose connections. External hose failures can
  create environmental and safety hazards.

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DulcoFlex Features

• Introducing the DulcoFlex
• Disaster Proof Connections.
• The flange housing is cast right into the pump.
• A beveled C clamp is attached to the hose.
• The insert is installed into the hose.
• The flange assembly is then attached which closes
  the C clamp firmly around the hose.
• Any leaks are now contained within the pump.

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DulcoFlex Features

• Heat dissipation
• Shoe compression pumps create a tremendous amount
  of heat.
• As we have learned, heat can affect hose life
  (shorten).
• DulcoFlex has designed our pumps to maximize heat
  dissipation.
• Heat sync tabs have been cast into the housings
  of our pumps.
• Keeping the hoses cool helps extend their life.

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Applications

• Municipal applications
• Clean water
• Chemical transfer
• Chemical feed
• Chemical metering
• Dirty water
• Sludge transfer
• De-watering feed
• Chemical transfer
• Chemical feed
• Chemical metering

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Applications

• Industrial Markets
• Mining
• Chemical
• Pulp Paper
• Food
• Ceramic
• Cosmetics
• Slaughter houses (blood)
• Breweries/Wineries
• Fish
• Industrial wastewater

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PD Pump Comparison
Feature Pro Cav Lobe Double Disc Piston Hose
Flow 2000 gpm 2000 gpm 600 gpm 550 gpm 230 gpm
Pressure 1500 psi 150 psi 40 psi 130 psi 230 psi
Suction lift Excellent OK to Poor OK OK Excellent
Shaft seal Mech/pack Mech/pack Ball checks Ball checks None
Run dry Poor Limited Good OK Excellent
Pump air entrained fluid OK OK Good OK Excellent
Volumetric Efficiency Good Good OK OK Excellent
Ease of repair Poor Poor Good BAD! Excellent
Repair cost Poor Poor Good BAD! Good
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Summary

• DulcoFlex peristaltic pumps
• Low maintenance
• Great suction lift capability
• Seal-less design
• Reversible
• Abrasion resistant
• Accurate dosing/metering
• Disaster proof hose connections
• 21 different models available
• Flows to 225 gpm
• Pressures to 230 psi

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ProMinent USA Thanks you!
thank you for your time!