The Momcozy M6 Silicone Valves (4 Pack) are replacement duckbill valves designed specifically for the Momcozy M6 wearable breast pump. If your pump's suction feels weaker than it used to, or a valve has torn, warped or lost its softness, these give you a straightforward way to refresh a small but important part of the milk path and get back to pumping with confidence.
Duckbill valves are one of the hardest-working components in a wearable pump. Made from soft, flexible silicone, each valve opens and closes to help regulate airflow and collect milk during a session. Because they flex with every cycle, and because regular washing and sterilising gradually cause silicone to stretch and soften, they're considered a wear part rather than something that lasts the life of the pump. Keeping a spare set on hand means you're never caught out mid-routine.
How it works
- Airflow regulation: The duckbill flexes open and closed as the pump cycles, which helps the pump maintain its vacuum and support consistent suction.
- Milk collection: As a milk-contact part, the valve sits in the flow path and supports milk moving into the collection cup during expression.
- Wear over time: Regular use, washing and sterilisation can cause silicone to stretch or weaken, so replacing worn valves helps maintain efficient, reliable pump performance.
When to replace
Under regular-use conditions, the valves are designed to be replaced approximately every three months. It's also worth swapping a valve sooner if you notice a tear, warping, or a loss of the soft flexibility that lets it seal properly — these are the signs that a valve may be affecting suction. Always follow the cleaning and care instructions supplied with your Momcozy M6.
Best for
The Momcozy M6 Silicone Valves are a great option if you:
- Use a Momcozy M6 wearable pump and want to keep it in good working order through routine maintenance
- Have noticed weaker suction and suspect a worn valve rather than a motor fault
- Prefer to keep a spare set on hand so you're not interrupted if a valve tears or wears out
Please note: These valves are designed specifically for the Momcozy M6 wearable breast pump. Check your pump model before ordering, as pump parts are often model-specific and are not interchangeable across different pumps.
Four-pack set
Supports suction consistency and milk flow
Helps maintain efficient pumping performance
Soft, flexible silicone construction
Designed for regular wearable pump maintenance
Easy to replace during routine care
- 4x Momcozy M6 Duckbill Valve