SUMP-GARD® Vertical Centrifugal Pumps
CHEM-GARD® Horizontal Centrifugal Pumps
FLEX-I-LINER® Rotary Peristatic Pumps
PUMP/TANK Non-Metallic Systems
Engineered OEM Pumps
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Water flow

Compact, Pedestal Mount FLEX-I-LINER® pump

flex-i-liner assortment

Vanton offers two configurations of FLEX-I-LINER® peristaltic pumps: Pedestal Mount model XB (left)
and Close Coupled model CC (right).
Interchangeable body blocks and elastomeric
liners allow rapid maintenance, minimizing downtime.

Sealless, Self-Priming Peristaltic Pumps



  • 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)
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.

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.

flex-i-liner pump sealflex-i-liner side view

Pumping is accomplished by a rotor mounted
on an eccentric shaft rotating within a flexible elastomeric liner. This creates a squeegee action
on the fluid, which is trapped between the outer surface of the liner and the inner wall of the
body block.

Only the rigid thermoplastic body block and the
flexible elastomeric liner contact the fluid being pumped. Body blocks are available in polypropylene, UHMW polyethylene and Teflon®. Flexible liners
can be furnished in natural rubber, Neoprene®,
Buna-N®, Hypalon®, Viton®, Nordel®.

See Chemical/Material Resistance Chart