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Vanton Pump and Equipment Corp.
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  5. Flex-I-Liner - Self-Priming Peristaltic ...

Flex-I-Liner - Self-Priming Peristaltic Pumps

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Vanton FLEX-I-LINER peristaltic type rotary pumps transfer, sample or meter acids, caustics, solvents, salts, chlorides and reagent grade chemicals — even viscous fluids and slurries containing soft solids and abrasives. Only two non-metallic parts contact fluid — the rugged thermoplastic body block and durable, replaceable elastomeric flexible liner. This easy-to-service construction keeps maintenance and downtime low.

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  • Flows from .33 gpm to 40 gpm (.07 to 9 m3/h)
  • Pressures to 45 psig (310 kPa)
  • Temps to 250°F (121°C)
  • No stuffing boxes, valves or gaskets
  • Dry running
  • Self-priming
  • Reversible operation
  • Two model ranges: Pedestal Mount model XB, and Close Coupled model CC
  • Non-metallic wetted components (see Chemical/Material Resistance Chart)

The wide choice of thermoplastics and elastomers in which these pumps are furnished permits their use over the full pH range and for an endless list of corrosive, volatile, abrasive clear and viscous fluids, as well as for vacuum service and gas transfer. (See Chemical/Material Resistance Chart):        

The gentle peristaltic pumping action minimizes foaming, prevents settling out of suspensions and permits safe handling of latex emulsions and other shear-sensitive liquids.

Sealless, non-metallic and self-priming, FLEX-I-LINER® pumps operate in either direction, wet or dry, in any position. Their unique design eliminates shaft seals, glands, internal seals, stuffing boxes and other potential sources of leakage.

Offered in Pedestal Mount and Close Coupled models, FLEX-I-LINER® pumps can be furnished with electric motors, with rotary vane air motors or with variable speed drives for metering purposes.

Every Vanton pump is fully tested to verify performance with all data permanently recorded.

Over 140,000 of these dependable sealless, self-priming pumps are in service handling aggressive and other problem fluids.

  1. Pump bodies are provided in polypropylene, Teflon®, UHMW (ultra high molecular weight) polyethylene, and other non-metallic materials. Stainless steel body available on request.
  2. The heavy duty replaceable flexible liners are available in a wide choice of chemically resistant natural and synthetic elastomeric materials, including natural rubber, Neoprene®, Buna-N®, Hypalon®, Viton® and Nordel®. 
  3. Field replacement of the precision molded flexible liners is accomplished without the use of special tooling.
  4. The design eliminates stuffing boxes, glands, shaft seals, gaskets or internal valves.
  5. The pump is self-priming and capable of running dry.
  6. Shaft and rotor bearings are completely isolated from the fluid cavity, eliminating any danger of corrosion, or contamination of the fluid being pumped.
  7. Pumps are suitable for vacuum and gas sampling service, for handling volatile liquids, viscous fluids, and slurries, even those with soft solids.