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It's wise to have spare impellers on-hand to make sure your pump is ready to go. They're easy to replace, and they store well. Keep a few on your shelf for when you need them.

Material Types

  • Neoprene: Neoprene has very good mechanical wear resistance, and good general chemical resistance, which is why the standard SQN impeller material unless otherwise specified. It is good for wine and spirits, and has fair compatibility with ozone. It is not recommended for pumping olive oil. Operating temperature range: 45° F to 180° F
  • Nitrile: Nitrile (a.k.a. Buna Rubber) is good for pumping wine and olive oil, but not recommended for ozone. Products with higher alcohol content may cause nitrile to swell slightly over time with prolonged contact. Operating temperature range: 50° F to 180° F
  • EPDM: EPDM is excellent for wine, higher-proof spirits, and cleaning with ozone. It is very tolerant to high and low temperatures, but is not recommended for oils, and has lower mechanical wear resistance properties than Neoprene or Nitrile. Operating temperature range: 45° F to 185° F
  • Viton: Viton is a very resistant and durable substance with a wide range of compatibility in the beverage industry. It's good for wine, beer, spirits, olive oil, and ozone. Operating temperature range: 60 °F to 180 °F

Extending impeller life

There are a few steps you can take to make sure your impeller lasts as long as possible. First and foremost, remove it when the pump will not be in use for an extended period of time. Jabsco SQN pump heads are easy to disassemble and reassemble. Removing an impeller should take you about 5 minutes, max. Once you think you'll be done with the pump for a little while just unbolt and remove the head. Pop the impeller out, wash it off, and put it on the shelf.

Be careful about reversing the pump flow if it has been sitting for a while, particularly at start-up. The blades of the impeller will be used to their position if it has been sitting dry for a long time. Changing the direction of the impeller rotation before the head has a chance lubricate will quickly tear the blades.