Silicone One-way Valve Brands We Serve
Silicone One-Way Valve For Sale
- 100% Silicone Material（FDA / LFGB）
- Accurate opening pressure control
- Anti-fatigue design and high temperature resistance
- Full OEM & ODM support, custom size, hardness, color
- Precision molding (±0.02mm tolerance)
Legensilico Silicone One Way Valve Manufacturer | Custom Silicone Check Valve Solutions
Our silicone one way valves are made from 100% high-quality silicone material and offer superior performance, including high-temperature resistance, chemical resistance, and durability, effectively preventing the backflow of liquids and gases.
Whether you need standard designs or fully customized components, Lexins can provide tailored OEM and ODM silicone valve solutions to meet your project requirements.
Types of Legensilico Silicone One Way Valves
At Legensilico, we offer a wide range of valve designs to meet different application needs, all types support custom size, hardness, and opening pressure adjustment.
Our silicone one-way air valves are designed for precise airflow control and backflow prevention. Made from high-quality flexible silicone, they are widely used in medical devices, ventilation systems, and consumer products requiring stable air regulation.
These kinds of valves ensure reliable liquid flow control while preventing backflow and leakage. Ideal for beverage machines, water dispensers, and fluid transfer systems, these valves offer excellent sealing and durability.
Our silicone one-way control valves provide accurate flow regulation for both air and liquid applications. Engineered for consistent performance, they are suitable for industrial systems, medical devices, and precision equipment.
The silicone one way dome valve features a compact dome-shaped design that enables precise opening pressure and tight sealing. It is commonly used in small الأجهزة and fluid control systems requiring stable performance.
Small silicone one way valves are designed for compact applications with limited space. Despite their size, they deliver reliable one-way flow control, making them ideal for medical, electronic, and portable devices.
Our silicone one way drain valves allow efficient discharge of liquids while preventing reverse flow. They are widely used in drainage systems, pumps, and appliances requiring controlled fluid release.
The diaphragm silicone valve offers precise control over fluid flow through a flexible membrane design. It is commonly used in medical devices and dosing systems where accuracy and responsiveness are critical.
Our slit silicone valves feature a simple yet effective slit design that opens under pressure and seals tightly when pressure is released. They are cost-effective and widely used in packaging, dispensing, and compact devices.
Our silicone one-way check valves are designed to allow flow in one direction while preventing backflow. Made from FDA-grade silicone, they are suitable for food, medical, and industrial applications.
The umbrella silicone valve features a stem and umbrella-shaped head for precise sealing and pressure control. It is widely used in medical equipment, automotive systems, and liquid dispensing applications.
Legensilico silicone one way degassing valves are designed to release gas while preventing external air from entering. Commonly used in coffee packaging and fermentation systems, they help maintain product freshness and quality.
The silicone one way duckbill valve uses a flexible duckbill-shaped design to ensure reliable sealing and low-pressure opening. It is ideal for liquid and gas control in medical, food, and industrial applications.
Why Choose Legensilico Silicone One Way Valves?
We use FDA- and LFGB-certified silicone materials to ensure safety, non-toxicity, and compliance with international standards.
Our engineering team can customize valve designs to achieve precise and stable opening pressures.
High elasticity ensures a tight seal, effectively preventing leaks and backflow.
We utilize high-precision compression molding and injection molding processes to ensure consistent and reliable product quality with strict tolerance control.
Custom Silicone One Way Valve Solutions
We offer flexible customization options to meet your specific requirements. We can tailor various aspects to your needs, including size and shape, opening pressure, hardness (Shore A 30–80), color and transparency, logos and branding, packaging, and more.
High-Performance Silicone One-Way Valves
The non-stick cross-slot design of our silicone one way valves ensures reliable fluid flow. They have passed a 7-day, 24-hour upside-down leak test with no leakage, delivering fluid instantly upon pressing without any additional cracks.
Suitable for air control devices or liquid/water flow controllers, these valves are ideal for a wide range of applications, including medical tubing or pipeline pressure regulators, diving equipment, automotive fuel tanks, electronic devices, bathroom fixtures, irrigation systems, dispensing valves, and livestock equipment.
| Item | Option / Details |
| Material | Silicone / Medical Silicone / Food-grade Silicone |
| Product Type | Silicone One-way Valve / Silicone Check Valve / Silicone Non-return Valve |
| Feature | Flexible / Durable / Chemical Resistant / Leak-proof / High Temperature Resistant |
| Function | Prevent Backflow / Control Fluid or Gas Flow Direction / Maintain One-way Flow |
| Application | Power Plant / Chemical Industry / Food Industry / Pharmaceutical Industry / Metal Industry |
| Processing Service | Moulding / Injection Molding / Compression Molding |
| Usage Medium | Water / Air / Gas / Oil / Chemical Liquid |
| Size | Customized Size Available / Accept Customers’ Designs |
| Color | Black / White / Red / Yellow / Customized Color |
| Logo | Customized Logo Available / Private Label Available |
| Working temperature | -20°C to +80°C |
| Hardness | Customized Hardness |
| Certification | IATF16949 / ISO9001 / REACH / ROHS |
| Packing | Plastic Bag + Carton / Customized Package |
| OEM/ODM | Accepted / Customized Design / Private Label Available |
| Advantage | Reliable One-way Flow Control / Flexible Material / Long Service Life / Easy Installation |
Applications of Silicone One Way Valves
Legensilico silicone one way valves are designed to meet stringent hygiene and performance requirements and are widely used across multiple industries:
– Medical industry: ventilators, respiratory systems, infusion equipment
– Food and beverage industry: coffee machines, beverage dispensers, liquid packaging systems
– Baby products: anti-colic valves for baby bottles, feeding systems
– Industrial applications: pumps and piping, fluid control systems
Quality Assurance & Certifications
At Legensilico, quality is strictly controlled at every stage, ensuring every valve meets high-performance standards:
-FDA approved silicone
-LFGB certified materials
-ISO quality management system
-Raw material inspection
-Mold precision verification
-In-process quality checks
-100% leakage testing before shipment
How We Turn Silicone Into Reliable Products
We support customized silicone products from mold design and material selection to mass production and final quality inspection.
- Manufacturing Process
- Technical Specifications
| Material | 100% Silicone |
| Hardness Range | 30–80 Shore A |
| Temperature Resistance | -40°C to 200°C |
| Certifications | FDA, LFGB, RoHS |
| Production Methods | Compression molding, injection molding |
A silicone one way valve, also known as a silicone check valve, is a flexible component that allows fluid or air to flow in one direction while preventing backflow. Made from high-quality silicone rubber, these valves are widely used in applications requiring hygiene, flexibility, and durability.
There is no difference. A silicone one way valve is simply another name for a silicone check valve, both referring to valves that allow flow in only one direction.
Selection depends on your application, required opening pressure, installation space, and medium (air or liquid). Duckbill valves are ideal for low pressure, while umbrella valves offer more precise control.
Yes. We can adjust the valve design, thickness, and hardness to achieve your required opening pressure.
Silicone offers several advantages compared to rubber or plastic:
-Excellent flexibility and elasticity
-Wide temperature resistance (-40°C to 230°C)
-Non-toxic and food-grade safe
-Resistant to aging, UV, and chemicals
-Long service life with consistent performance
These properties make silicone an ideal material for applications requiring reliability and safety.
The opening pressure depends on the valve design, material thickness, and hardness. It can be precisely engineered to meet your application needs, ranging from very low pressure for sensitive systems to higher pressure for industrial uses.
Legensilico can customize valve performance to ensure optimal flow control and sealing.
Yes, silicone valves have excellent thermal stability and can operate in temperatures ranging from -40°C to 230°C. This makes them suitable for both hot and cold environments, including food processing and medical applications.
Yes, we offer both food-grade and medical-grade silicone valves. Our products can comply with:
- FDA (Food and Drug Administration) standards
- LFGB (European food safety standards)
We can also provide material certifications and testing reports upon request.
Silicone One-way Valve Manufacturing Process
At Legensilico, we follow a standardized and optimized production process, dedicated to providing high-quality, food-grade silicone valves for a wide range of industries.
- Raw Material Preparation
We select food-grade or medical-grade silicone, test the raw materials for purity, and verify their compliance with relevant standards (such as FDA or LFGB standards). If custom colors are required, corresponding color masterbatches are added, and the silicone is mixed to ensure a uniform and consistent texture.
- Silicone Mixing and Formulation
We process the silicone material using twin-roll mixers or internal mixers to ensure that all additives are evenly dispersed.
- Mold Design and Manufacturing
Design and manufacture customized molds based on the valve type and specific application requirements: duckbill valves, umbrella valves, slit valves, and diaphragm valves.
Design considerations include opening pressure, flow control capability, and sealing precision.
- Compression Molding / Injection Molding
- Compression Molding: Silicone material is placed into a heated mold, and pressure is applied to form it into the required valve shape.
- Liquid Silicone Rubber (LSR) Injection Molding: Liquid silicone rubber is injected into a closed mold cavity, suitable for products requiring extremely high precision and high-volume production.
- Vulcanization (Curing)
After molding, the silicone must undergo high-temperature vulcanization to set its shape and enhance its mechanical properties.
- Deburring and Trimming
After the molding process is complete, excess material (known as “flash”) must be removed: this is done through manual trimming or automated deburring processes
to ensure smooth edges and precise dimensions
- Post-curing (Secondary Vulcanization)
For food-grade or medical-grade applications, valves must undergo post-curing in an oven to remove residual volatile substances,
further enhancing the product’s odorless and non-toxic properties.
- Quality Inspection and Testing
Every batch of products undergoes strict quality control, with testing items including: dimensional inspection, hardness testing (Shore A), airflow/pressure testing, and leak-tightness testing.
