WARRENDER WMDAV Series, Rotary Vane, Mag-Drive PumpsRotary Vane Seal-Less Mag-Drive Pumps:

The WARRENDER WMDAV Series Alloy P.D. Rotary Vane Seal-Less Mag-drive Pumps are ideally suited for low flow / high pressure applications including chemical injection and metering systems. All WMDAV pumps are equipped with zero leakage magnetic couplings to meet the latest toxic emissions regulations. The WMDAV pumps feature self-compensating sliding-vanes which maintain design head and flow capacities for extended operating life. The WMRA pumps are suitable for thin non-lubricating liquids and/or high differential head pressures. The pumps are capable of self-priming from a dry start.


  • Self-Priming and can can run dry without damage

  • No gears to wear or metal to metal contact, low internal slip

  • Capable of proportioning with variable speed drives, turn-down ratios depend upon differential head requirments

  • Heavy duty alloy containment shell for added safety

  • Replaceable carbon cartridge-low maintenance costs

  • High torque magnets, suitable for direct starting motors

Technical Data:

  • Flow: .1-11 GPM (22-2500 M³/H)

  • Head: To 180 psig (12 bar)

  • Temp: To 450°F (to 232°C)

  • System Pressures: 350 PSIG (24 Bar)


  • AISI SS-316 Stainless Steel, Incoloy-825, Hastelloy-B or C-276