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      Configure your piFLOW®f

      • COAX® patented technology.
      • ASTM 304.
      • Easy to install.
      • Easy to use.
      • ATEX Dust certified.
      • All seals in direct contact with the conveyed product are in compliance with FDA, EC No. 1935/2004 and EC No. 10/2011.
      Support / CAD
      YouTube videos (3)
        • Vacuum conveyors

          • Can food and pharmaceutical products be transported through vacuum conveyors?
          • Can Piab vacuum conveyors be used to convey tablets, capsules etc.?
            • Yes. Piab has experience of conveying a large variety of tablets and capsules without damage.  Please contact us for detailed information.

          • Can the conveyor be used to dose material?
            • No it can’t. Normal procedure is to dose before or after conveying.  

          • Can you convey liquids?
            • No we can’t. It’s extremely difficult to control the amount of liquid coming in the conveyor.

          • Can you convey material vertically?
            • Yes, up to 8-10 meters without accessories/pipe emptying solution. With a pipe emptying solution up to about 25 meters.

          • Can you provide IQ/OQ documentation with a conveyor?
            • For piFLOW®p we can supply this documentation. It is a template that shall be filled in during start up and with the help of the manual that comes with the shipment.


          • Do you use any electricity on the conveyors?
            • No, the conveyors use only compressed air. Even our control systems are pneumatic. 

          • Does Piab have any warranty on the unit?
            • Piab offers a warranty to distributors, integrators and users of Piab products worldwide as per the following definitions:

              • A five-year warranty is valid for complete vacuum conveyors excluding electro mechanical pumps and controls.
              • A five-year warranty is valid for vacuum pumps excluding electro mechanical pumps, accessories and controls.
              • A two-year warranty is valid for electro mechanical pumps.
              • A one-year warranty is valid for other products.

              General warranty principles:

              • Piab guarantees against defects in the manufacture and materials by normal use in a proper environment, when following the instructions for care, maintenance and control described in the appropriate Piab manual.
              • Piab replaces or repairs, free of charge, faulty products provided that these are returned to Piab and found to be covered by the warranty.
              • It is at Piab’s discretion whether a faulty product should be sent back to Piab for replacement or if the repair shall be made locally at Piab’s expense.
              • This warranty does not include wear parts such as filter elements, sealings, hoses, pipe fittings, pipe bends, pinch valves (in-line with conveyed material), reducers, etc.
              • This warranty does not include subsequent damages caused by defective products.


          • How do I troubleshoot?
            • In the manual for conveyors there is one section about troubleshooting. You are also welcome to contact nearest Piab company.

          • How many meters is it possible to convey powder?
            • 0 – 50 meters if the conveying length does not include a vertical lift more than 5m and the product density is between 0.5-1.0kg.

          • How to avoid the material segregation?
            • By having the right mix of air and conveyed product. This is achieved from where the Piab conveyor draws the material with the help of our feeding point accessories. Please also read our  white paper on segregation and contact any Piab company for further information.

          • Is the Piab conveyor made to stand overpressure?
            • No they are not, only for under pressure.

          • Is there a risk of dust explosion?
            • Not if instructions in the manual are followed. All Piab conveyors have a grounding point.  All our conveyors can be sent with ATEX dust approval. 

          • Please tell me how to disassemble the vacuum conveyor
            • Tool are not really needed for assembly/de-assembly. For more detailed information, please look in the manual or in our YouTube channel

          • Please tell me the approximate amount of powder transport
            • From about 0.1ton/h to about 15ton/h.

          • Please tell me the method of selecting the vacuum conveyor
          • What can go wrong with the unit?
            • With regular maintenance, the unit will do the job for years to come.

              If the compressed air is dirty/has fluid in it, the filter can be clogged as well as the ejectors and the timers.Water in the air line is not optimal.

              Consult the manual for troubleshooting if you would encounter anything unusual.

          • What is included in the delivery of the conveyor?
            • Conveyor, filter regulator (1” connection)


              Troubleshooting guide



          • What is the material used for the body of the conveyors?
            • piFLOW®p is made of stainless steel  316L.

              piFLOW® i and f  are made of stainless steel 304.

          • What kind of certificate can you provide with your conveyors?
            • To a large number of Piab conveyors we can offer FDA, ATEX Dust and Gas, 2.2 certificates.

          • What type of accessories can Piab provide?
            • Stainless steel, aluminum, or PE, aspirated and non-aspirated feed wands

              Feed adapter with or without flange connection

              Feed station/hopper

              Flexible Hose

              Remote start/stop valve

              Level sensor


              Transition from the unit to downstream equipment

          • What type of filter is available for this unit?
            • Pleated rod. Filtration grade 0,5µm. a hard rod filter in PE and PUR material with a PTFE membrane.  Comes in black and white version.

              Pleated, Filtration grade 0,5µm. A hard polyester and PUR filter with a PTFE membrane. Grey colour.

              Textile. Filtration grade 5,0µm filterbag in polyester and a ePTFE membrane.  Light grey colour.


          • What utilities do I need?
            • Compressed air with normal industry pressure of 0.4-0.6 MPa.

          • When transporting granules, do the granules break or become damaged?
            • It depends on the physical properties of the granules. Piab has experience of conveying a big variety of granules, tablets and capsules without damage.  Please contact us for detailed information.

        • piFLOW® i and f

          • Are the filters FDA approved?
            • Yes they are.

          • Can the filter be washed?
            • Depending on the filter type there are different recommendations. Please read the cleaning instructions in the corresponding manual for the vacuum conveyor.

          • Can the unit be controlled by a level sensor in the receiving hopper?
            • Yes it can, a level sensor including the electric/pneumatic valve will be integrated for it. 110VAC or 24VDC are integrated. 

          • Does the unit come with any type of control?
            • The unit has a pneumatic control which controls the suction and discharge time 

              It can also be w/o control, in that case the end user will need to provide the sequence of operation – PLC control

              El/pneumatic valve unit can be provided (to convert the electrical signal to a pneumatic output to signal the Piab)

          • Does the unit use metric tubing and hardware?
            • Yes it is all metric tubing and hardware.

          • How does the unit work/operate?
            • Start the Piab control via a pneumatic ON/Off valve
              The vacuum pump starts and at the same time the bottom flap/door closes, the back pulse container (located inside the top part of the Conveyor) charges with compressed air (line pressure). The suction time begins (adjustable to 1-30 seconds via the pneumatic timer).
              When the suction time times out, the control goes into a discharge cycle (adjustable to 1-30 seconds), the vacuum pump will stop, the bottom flap/door opens and the back pulse will clean the filter. And after  that it will re-start until the unit is shut off
              Please also look at our video.
          • How much can the unit convey?
            • 100-4000kg/h, depending on the distance and the size of the conveyor/pump/filter and product to be conveyed

          • How much compressed air does the unit consume?
              • piBASIC100 pump, 5-7Nl/sec. 
              • piBASIC200 pump, 10-14Nl/sec. 
              • piBASIC400 pump, 20-28Nl/sec. 
              • piBASIC600 pump, 26-37Nl/sec. 
          • What are the benefits with the unit?
            • The air driven Piab vacuum pump maximizes energy efficiency by using COAX® technology

              Does not produce any heat

              Low maintenance because of few parts

              Efficient filtration (5 – 0.5 micron)

              Maximize productivity with quick-start operation

              Low noise level (72-76 dBA)

              Optimize available mounting space

              Increase conveying capacity with a large volume capability

          • What delivery time does Piab have on a unit?
            • We can deliver units in 2-4 weeks after receipt of order

          • What is included in the delivery of the conveyor?
              • Conveyor
              • Manual
              • Troubleshooting guide
              • Drawings
          • What is the filtration for the filters?
              • Textile filter has a minimum particle size of 5 micron
              • Pleated and pleated rod filters have a particle size of 0.5micron
          • What is the surface finish?
            • Ra 0.6 µm or better.

          • What is the unit made of?
              • The body is made of stainless steel 304L, pickled inside and outside
              • Vacuum Pump is made of aluminum , stainless steel and plastic
          • What materials are the filters made of?
              •     The bag filter is made of ePTFE ,Polyester needle felt
              •     The pleated filter is made of PTFE, reinforced polyester and PUR – polyurethane
              •     The pleated rod filter made of PTFE, PE – sintered polyethylene   
          • What type of accessories can Piab provide?
              • Stainless steel, aluminum, or PE, aspirated and non-aspirated feed wands
              • Feed adapter with or without  flange connection
              • Feed station
              • Flexible vacuum hose
              • Remote start/stop valve
              • Level sensor
              • Containers
              • Transition pieces from the vacuum conveyor to recieving equipment
          • What type of filter are available for these units?
            • We have different ones for different needs:

              • Pleated rod. Filtration grade 0,5µm. a hard rod filter in PE and PUR material with a PTFE membrane. Comes in black and white version.
              • Pleated. Filtration grade 0,5µm. A hard polyester and PUR filter with a PTFE membrane. Grey colour.
              • Textile. Filtration grade 5,0µm Filter bag in polyester and a ePTFE membrane. Light grey colour.


          • What type of product can these conveyors transport?
            • They can convey products between fine powder to plastic granules and  from free flowing material to non-free flowing dry material.

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