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What is a Duckbill Valve Breast Pump?

Views:20     Author:Site Editor     Publish Time: 2020-03-24      Origin:Site

What is a duckbill valve breast pump?

Breast Pump Duckbill Valves are also known as Breast Pump Valve, Breast Pump Membrane ValveDuckbill Valve for Breast Pump, Milk Valve for Manual Breast Pump. It is one types of Liquid Silicone Valve that used for electric milk pump and manual milk pump. Silicone Duckbill Valves are widely used in breast pump device kits by many baby care company like Ameda,  medela duckbill valve, spectra duckbill valve etc, and produced by LSR Injection Molding with FDA Food Grade Liquid Silicone material and and shaped like the beak of a duck.  

Breast Pump Duckbill Valve

At first, the duckbill valves were made by compression molded HTV (solid )silicone, while considering the safety for baby care, Liquid silicone material enter into the market. Liquid silicone rubber which need intersive distributive mixing and also need cold runner systems in aim to maintain liquid silicone materials at a lower temperature before injected into heat cavities & chambers for vulcanization. Solid Silicone duckbill valves is easy to polluted by workers when production, and also not fully cured (some hazardous substance still stay in molded silicone even secondary vulcanization.)

LR 3038 Liquid Silicone Rubber Material TDS ELASOSIL.pdf

Duckbill Valve for Breast Pump

Our Breast Pump Duckbill Valves in stock are made of Liquid Silicone Rubber Material with the followed advantages:

LSR Liquid Silicone Duckbill Valve is resistant to bacteria growth and won’t stain or corrode other materials. The Liquid Silicone material is also tasteless and odorless and can be formulated to comply with stringent FDA requirements.

Liquid Silicone Duckbill Valves have a natural transparency, this attribute makes it possible to produce, colorful, custom, molded products.



LSR Breast Pump Valves are ideal for direct and indirect food contact because of their inorganic nature. They are heat resistant, easy to clean and satisfy all current food legislation.


Liquid Silicone Rubber & LSR Duckbill valve material is a two-part platinum-cured silicone, which is a high-purity and non toxic materials with lower compression set, lower outgassing, high heat resistance (working temperature: -40oC ~ 230oC), good tensile strength and tear resistace. 



Milk Valve for Breast Pump made by LSR injection molding’s surface is completely frosted, transparent, no flash, no thorns, the whole surface is smooth and beautiful.

Breast Pump Valve

Breast Pump Replacement Valve


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