Troubleshooting How to remove the valve of a Philips Avent breast pump The Philips Avent breast pump has a specially designed valve that you can easily remove and clean. Find out just how to do so. Special ribbed tab The valve is created with a ribbed tab to easily remove it from the pump. If it inadvertently gets stuck, wiggle the valve until it comes loose. You can order a new valve in the online shop.