Valve/Duckbill for Ameda, Lansinoh and Freemie Cups

Replacement valve/duckbill for Ameda Purely Yours breast pumps
  • Made by Maymom
  • Steam safe for sterilization
  • Made from BPA free material
  • Comes in a plastic box with 4 valves/duckbills
  • Made from new 2018.6 mold - Faster milk flow through the valve. Sturdier material for durability. Easy install and removal.
  • Semitransparent for seeing through
What we like:
  • valves in a box for easy keeping
  • can be sterilized in water steam or boiling water
Works with:
  • Designed to be 100% compatible with Ameda parts (Ameda CustomFit Breast Flanges, Ameda Breast Purely Yours and Lactaline pumps)
  • Maymom Breastshield for Ameda Breast Pumps
  • Lansinoh Double Electric Pumps 
  • Freemie Cups
  • Wash this piece with hot, soapy water. It is not advisable to insert any object into the valve opening to clean it. This may tear or stretch the part resulting in poor performance
  • Check the valve frequently for tears

A breast shield or flange is the funnel on a breast pump that attaches to your breast and draws the nipple out, creating suction and allowing your milk to flow out of your breasts and into the storage bottle. Some breast shields, the funnel and the bottle connector are joined seamlessly as a one-piece, known as the flange.

The size of the breast shield is express in terms of millimeters (mm). This usually refer to the measurement of the opening at end of the funnel towards the tunnel.  

Finding the Right Fit: 

In order to find your optimal breast shield size, you can measure your nipple diameter:

  1. Using a ruler or measuring tape, measure the diameter of your nipple at the base (across the middle, diameter) in millimetres (mm). Do not include your areola.
  2. Add 2 to 4 mm to your measurement when selecting your breast shield size.

If you have already started pumping, please measure after a pumping session.

You can also download this ruler, print and cut out the ruler to measure your nipple diameter.

Am I using the correct breast shield size?

If you answer yes to one or more of the following questions, you may be using the incorrect breastshield size.

- Do you feel discomfort when pumping?

- Does your nipple rub against the side of the flange?

- Do you see excess areola pulled into the flange?

- Do you see any redness of whiteness?

- Do you feel unexpressed breast milk after pumping?

A good fitting breast shield should give you a gentle, rhythmic pulling during expressing, and your breast should feel empty and soft once you’re finished. Pumping breast milk should never be a painful experience.

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