Válvula de silicona LSR apta para uso alimentario para vaso con boquilla para bebés

The Food Grade LSR Silicone Spout Valve for Baby Sippy Cup is a soft, transparent silicone drinking component designed for baby cups, sippy cups, training cups, feeding bottles, and toddler drinking products.

Made from food-grade liquid silicone rubber, this component integrates a drinking spout, sealing flange, and anti-leak valve structure into one molded part. The soft silicone spout provides a comfortable drinking experience for babies and toddlers, while the flexible sealing base helps reduce leakage when assembled with the cup lid.

This product can be customized according to customer drawings, samples, cup lid structure, flow requirement, silicone hardness, transparency, and sealing design.

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Características principales

Food-Grade LSR Silicone Material

Made from soft and transparent liquid silicone rubber, suitable for baby drinking products and food-contact applications.

Integrated Drinking Spout Design

The central spout is designed for smooth liquid flow and comfortable mouth contact. The shape, height, opening size, and flow rate can be customized.

Anti-Leak Sealing Structure

The wide silicone flange and bottom valve structure help improve sealing performance and reduce leakage when the cup is tilted or carried.

Soft and Flexible Touch

The silicone material is soft, elastic, and gentle for baby use, making it suitable for sippy cups, feeding bottles, and toddler training cups.

Precision Molded Structure

The product can be molded with accurate openings, sealing lips, positioning ribs, and assembly features to match different cup lid designs.

Custom OEM / ODM Design

We support customized development based on customer product structure, including spout shape, valve design, flange size, hardness, color, and packaging.

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Especificaciones del producto

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Aplicaciones típicas

This LSR silicone spout valve can be used in:

Baby sippy cups
Toddler training cups
Feeding bottles
Vasos de paja
Anti-leak baby cup lids
Children’s drinking bottles
Soft silicone drinking spouts
Food-grade silicone valve components
Custom baby care silicone parts

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Ventajas del producto

Compared with hard plastic drinking parts, silicone spout valves provide a softer and safer mouth-contact experience. The flexible material helps protect the baby’s mouth while supporting stable liquid flow.

The integrated sealing flange helps the component fit tightly into the cup lid, reducing assembly complexity and improving anti-leak performance. The transparent design also gives the product a clean, hygienic, and high-quality appearance.

For baby care brands, this type of LSR component is suitable for customized cup lid development, replacement parts, and private-label baby drinking products.

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Opciones de personalización

We support custom production according to customer requirements.

Las opciones de personalización disponibles son las siguientes:

Spout shape
Spout height
Opening size
Liquid flow rate
Flange diameter
Sealing lip design
Bottom valve structure
Dureza de la silicona
Transparency level
Coincidencia de colores
Logo-free design
Método de envasado
Producción OEM / ODM

For accurate development, customers can provide the cup lid drawing, 3D file, physical sample, assembly structure, target age group, and leakage test requirement.

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Proceso de fabricación

This product is produced by precision LSR injection molding. Liquid silicone rubber is injected into a dedicated mold and cured into a transparent, soft, and elastic drinking valve component.

The mold can be designed with fine details such as sealing lips, flow channels, anti-leak valve cuts, positioning ribs, and assembly structures. This allows the silicone spout valve to meet both functional and appearance requirements.

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Control de calidad

For baby drinking products, safety, sealing, appearance, and dimensional accuracy are important quality points.

Entre los aspectos que suelen inspeccionarse se incluyen:

Inspección visual
Medición de dimensiones
Pruebas de dureza
Transparency check
Inspección de rebabas y salientes
Prueba de ajuste del montaje
Prueba de estanqueidad
Flow performance check
Silicone surface inspection
Inspección de envases

Quality standards can be customized according to the customer’s project requirements.

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Preguntas frecuentes

1. Can this silicone spout valve be customized for our cup lid?

Yes. We can customize the size, shape, sealing flange, spout design, and bottom valve structure according to your cup lid drawing, 3D file, or physical sample.

2. ¿De qué material está hecho este producto?

The product is made from food-grade liquid silicone rubber. The final material grade can be selected according to customer requirements and target market standards.

3. Can the flow rate and anti-leak performance be adjusted?

Yes. The spout opening, valve structure, silicone hardness, and sealing lip design can be adjusted to balance drinking comfort, flow rate, and leakage resistance.