1. Product Overview
This replacement kit provides essential components for your Bellababy Breast Pump, ensuring optimal performance and hygiene. The kit includes 24mm flanges and other necessary parts for compatible Bellababy breast pump models.
Compatibility: This kit is specifically designed for Bellababy Breast Pump Models BLA8040, BLA8040-2, BLA8042, and BLA8042-2.

Figure 1: Compatible Bellababy Breast Pump Models with Replacement Kit. This image illustrates the specific breast pump models that are compatible with this 24mm replacement kit.
Important Note: This replacement kit is not universally compatible with all Bellababy breast pump models. Please verify your pump model number before purchase and use.

Figure 2: Non-Compatible Bellababy Breast Pump Models. This image displays breast pump models that are not designed to work with this 24mm replacement kit.
2. Setup and Assembly
2.1 Initial Cleaning
Before first use, and after each subsequent use, all parts that come into contact with breast milk must be cleaned and sterilized. Refer to the 'Maintenance and Cleaning' section for detailed instructions.
2.2 Assembling the Kit
Follow these steps to assemble the replacement kit components with your Bellababy breast pump:
- Ensure all parts are clean and dry.
- Carefully attach the 24mm flange to the breast pump unit, ensuring a secure fit.
- Insert the valve into the bottom of the flange.
- Place the diaphragm onto the top of the flange, ensuring it is seated correctly to create a seal.
- Attach the collection bottle or bag to the bottom of the flange.
- Connect the tubing (if applicable for your pump model) to the diaphragm cap and the pump motor.
Verify that all connections are snug to prevent air leaks, which can affect suction.
3. Operating Instructions
Once the replacement kit is correctly assembled with your Bellababy breast pump, operate the pump according to the instructions provided in your original Bellababy Breast Pump user manual. The replacement parts are designed to function identically to the original components.
- Ensure the flange size (24mm) is comfortable and provides an effective seal around your nipple. An incorrect flange size can lead to discomfort and reduced milk expression.
- Start the pump at a low suction level and gradually increase to a comfortable setting.
- Monitor milk flow and adjust pump settings as needed.
4. Maintenance and Cleaning
4.1 Cleaning After Each Use
Proper cleaning of your breast pump parts is crucial for hygiene and longevity. Disassemble all parts that came into contact with breast milk immediately after each use.
- Rinse parts under cool running water to remove milk residue.
- Wash parts in warm, soapy water using a dedicated brush.
- Rinse thoroughly under running water.
- Air dry on a clean paper towel or drying rack. Avoid using cloth towels, which can transfer germs.
Dishwasher Safe: Yes, the components of this replacement kit are dishwasher safe. Place parts on the top rack of your dishwasher for cleaning.
4.2 Sterilization
Sterilize parts at least once a day, especially for infants under 3 months, premature infants, or those with weakened immune systems. Methods include boiling water, steam sterilizers, or microwave sterilizer bags.
4.3 Storage
Store clean and dry pump parts in a clean, covered container or bag when not in use.
4.4 When to Replace Parts
Inspect your pump parts regularly for wear and tear. Replace parts immediately if you notice:
- Cracks, tears, or discoloration.
- Reduced suction or milk output, even after troubleshooting.
- Any signs of damage that could compromise hygiene or function.
Regular replacement of parts, typically every 3-6 months depending on frequency of use, helps maintain pump efficiency.
5. Troubleshooting
If you experience issues after installing the replacement kit, consider the following:
5.1 Low or No Suction
- Check Assembly: Ensure all parts are correctly assembled and securely connected. A loose connection can cause air leaks.
- Inspect Diaphragm: The diaphragm must be seated perfectly to create a vacuum. Check for any tears or misalignment.
- Examine Valve: The valve (duckbill valve) should be clean and free of debris. A damaged or clogged valve can impair suction.
- Flange Fit: Ensure the 24mm flange forms a tight seal around your breast. Adjust position if necessary.
- Pump Motor: If all replacement parts are correctly installed and inspected, the issue might be with the main pump motor. Refer to your original pump manual for motor-related troubleshooting.
5.2 Leaking Milk
- Bottle Connection: Ensure the collection bottle is securely screwed onto the flange.
- Valve Position: Verify the valve is correctly inserted and not damaged.
- Flange Seal: A poor seal between the flange and your breast can cause milk to leak.
6. Specifications
- Product Dimensions: 4.5 x 4.5 x 3 inches; 5.61 ounces
- Item Model Number: BLA8040 P
- Brand: Bellababy
- Dishwasher Safe: Yes
- Flange Size: 24mm
7. Warranty and Support
Warranty information for Bellababy products is typically provided with the main breast pump unit. For specific warranty details regarding this replacement kit, please refer to your original breast pump manual or visit the official Bellababy website.
For further assistance, technical support, or to inquire about additional replacement parts, please contact Bellababy customer service through their official channels.



