The Momcozy M5 Silicone Valves (4 Pack) are replacement duckbill valves designed for the Momcozy M5 and M5 Smart wearable breast pumps. Made from soft, flexible silicone, they're the small milk-path part that helps keep your pump's suction consistent, so this four-pack gives you spares on hand to keep your pumping routine running without interruption.
Duckbill valves are one of the hardest-working components in a wearable pump. They open and close with each cycle to help maintain vacuum and support milk flow, which means they're also one of the first parts to show wear. With regular use, washing and sterilising, silicone valves can gradually stretch, soften or weaken — and when that happens you may notice suction feeling less reliable. Swapping them out as part of routine care helps your pump keep performing the way it should.
How it Works
- Vacuum seal: The flexible duckbill opens and closes as the pump cycles, helping the pump maintain its suction and support milk flow during a session.
- Wear component: Because the silicone flexes constantly, it naturally loses elasticity over time — replacing it restores a fresh, responsive seal.
How to Use
Momcozy recommends replacing diaphragms and duckbill valves approximately every three months under regular-use conditions. If you pump more frequently, you may need to replace silicone components sooner, depending on wear and usage. Fit the valves during your normal cleaning and reassembly routine.
Best For
The Momcozy M5 Silicone Valves are a good fit for parents who:
- Own a Momcozy M5 or M5 Smart wearable pump and want spare milk-path parts on hand
- Have noticed suction feeling weaker and suspect a worn valve
- Like to keep to a regular pump maintenance schedule
Disclaimer
Momcozy recommends using model-compatible accessories rather than mixing parts across unrelated pump models. These valves are designed specifically for the Momcozy M5 and M5 Smart.
Care & Maintenance
Helps maintain efficient pumping performance
Easy to replace during routine care
Supports ongoing wearable pump reliability
Momcozy M5 Smart breast pump
- 4x Momcozy M5 Duckbill Valve