Trustly and Professional Miniature Check Valve Manufacturer from China
Welcome to Valve Kingdom, your trusted Miniature Check Valve manufacturer. Our range includes one way check valves designed for reliable performance in various applications. Explore our innovative duckbill valves and versatile umbrella valves, all crafted to meet stringent quality standards. Discover how our miniature check valves can enhance your systems with efficiency and durability.
Crafted with precision, our products are a testament to our commitment to quality. Utilizing top-tier materials, state-of-the-art molds, and cutting-edge manufacturing techniques, we produce high-performance solutions. Our class 10,000 cleanroom guarantees that every product meets the highest standards before reaching our customers.From concept to completion, we prioritize quality in every step of the manufacturing process. Premium materials, precision tooling, and advanced production techniques are the foundation of our high-performance products.
One Way Check Plastic Rubber Duckbill Valve
One Way Check Plastic Rubber Duckbill Valve used to control the flow of fluids and gases. It is usually made of a flexible elastomer such as rubber or silicone, and is designed in the shape of a flattened cone, with a slit at the top. When fluid or gas flows through the valve in the correct direction, the pressure forces the slit closed, preventing backflow. When the pressure is reversed, the valve opens, allowing the fluid or gas to flow through in the opposite direction. Duckbill valves are commonly used in medical devices, industrial applications, and in automotive applications where they are used to prevent fuel tank overflow during refueling.Small Non Return Valve Rubber Duckbill Valve
Food Grade ODE OEM Silicone Rubber Air Release Valve Silicone Duckbill Valve used to control the flow of fluids and gases. It is usually made of a flexible elastomer such as rubber or silicone, and is designed in the shape of a flattened cone, with a slit at the top. When fluid or gas flows through the valve in the correct direction, the pressure forces the slit closed, preventing backflow. When the pressure is reversed, the valve opens, allowing the fluid or gas to flow through in the opposite direction. Duckbill valves are commonly used in medical devices, industrial applications, and in automotive applications where they are used to prevent fuel tank overflow during refueling.Food Grade ODE OEM Silicone Rubber Air Release Valve Silicone Duckbill Valve
Food Grade ODE OEM Silicone Rubber Air Release Valve Silicone Duckbill Valve used to control the flow of fluids and gases. It is usually made of a flexible elastomer such as rubber or silicone, and is designed in the shape of a flattened cone, with a slit at the top. When fluid or gas flows through the valve in the correct direction, the pressure forces the slit closed, preventing backflow. When the pressure is reversed, the valve opens, allowing the fluid or gas to flow through in the opposite direction. Duckbill valves are commonly used in medical devices, industrial applications, and in automotive applications where they are used to prevent fuel tank overflow during refueling.Aquarium Check Valve One Way Air Check Valve Duckbill Check
Aquarium Check Valve One Way Air Check Valve Duckbill Check used to control the flow of fluids and gases. It is usually made of a flexible elastomer such as rubber or silicone, and is designed in the shape of a flattened cone, with a slit at the top. When fluid or gas flows through the valve in the correct direction, the pressure forces the slit closed, preventing backflow. When the pressure is reversed, the valve opens, allowing the fluid or gas to flow through in the opposite direction. Duckbill valves are commonly used in medical devices, industrial applications, and in automotive applications where they are used to prevent fuel tank overflow during refueling.Silicone Rubber Core Engine Pressure Relief Rubber Duckbill Valve
Silicone Rubber Non Return Check Valve Core Engine Pressure Relief Rubber One Way Valve Duckbill Valve used to control the flow of fluids and gases. It is usually made of a flexible elastomer such as rubber or silicone, and is designed in the shape of a flattened cone, with a slit at the top. When fluid or gas flows through the valve in the correct direction, the pressure forces the slit closed, preventing backflow. When the pressure is reversed, the valve opens, allowing the fluid or gas to flow through in the opposite direction. Duckbill valves are commonly used in medical devices, industrial applications, and in automotive applications where they are used to prevent fuel tank overflow during refueling.Micro Air Rubber Valve For Water System Duckbill Valve
Micro Air Rubber Valve Seal For Water System Duckbill Valve is a one-way valve used to control the flow of fluids and gases. It is usually made of a flexible elastomer such as rubber or silicone, and is designed in the shape of a flattened cone, with a slit at the top. When fluid or gas flows through the valve in the correct direction, the pressure forces the slit closed, preventing backflow. When the pressure is reversed, the valve opens, allowing the fluid or gas to flow through in the opposite direction. Duckbill valves are commonly used in medical devices, industrial applications, and in automotive applications where they are used to prevent fuel tank overflow during refueling.Eco Friendly Check Valve Small Valve Duckbill Valve
Eco-Friendly Duckbill Check Valve Non-Return Valve Small Air Valve Duckbill Valve is a one-way valve used to control the flow of fluids and gases. It is usually made of a flexible elastomer such as rubber or silicone, and is designed in the shape of a flattened cone, with a slit at the top. When fluid or gas flows through the valve in the correct direction, the pressure forces the slit closed, preventing backflow. When the pressure is reversed, the valve opens, allowing the fluid or gas to flow through in the opposite direction. Duckbill valves are commonly used in medical devices, industrial applications, and in automotive applications where they are used to prevent fuel tank overflow during refueling.Plastic One Way Medical Diaphragm Valve
CT.0050 Diaphragm valve is a type of valve that uses a flexible diaphragm to regulate the flow of fluids.1/8 Inch CT.0028 Plastic Check One Way Diaphragm Valve
Diaphragm valve can completely isolate the corrosive medium in the flow channel from all driving components, thus eliminating the drawbacks of ordinary valves such as "running, bubbling, dripping, and leaking".8mm JT.1003 Red Rubber Duckbill Valve
JT.1003 Duckbill valve is a one-way valve used to control the flow of fluids and gases. It is usually made of a flexible elastomer such as rubber or silicone, and is designed in the shape of a flattened cone, with a slit at the top. When fluid or gas flows through the valve in the correct direction, the pressure forces the slit closed, preventing backflow. When the pressure is reversed, the valve opens, allowing the fluid or gas to flow through in the opposite direction. Duckbill valves are commonly used in medical devices, industrial applications, and in automotive applications where they are used to prevent fuel tank overflow during refueling.3/16 Inch CT.0029 Fuel Check Valve Plastic Check One Way Diaphragm Valve
CT.0029 Diaphragm valve is a type of valve that uses a flexible diaphragm to regulate the flow of fluids.5mm JT.1033 Red Rubber Duckbill Valve
JT.1033 Duckbill valves are used for a wide variety of applications where a one-way checking function needs to be established.1/4 Inch CT.0017 Plastic Check One Way Diaphragm Valve
CT.0017 Diaphragm valve is a type of valve that uses a flexible diaphragm to regulate the flow of fluids.5/16 Inch CT.0030 Plastic Check One Way Diaphragm Valve
CT.0030 Diaphragm valve is a type of valve that uses a flexible diaphragm to regulate the flow of fluids.8mm JT.1034 Black One Way Check Rubber Duckbill Valve
8mm JT.1034 Duckbill valve is a one-way valve used to control the flow of fluids and gases. It is usually made of a flexible elastomer such as rubber or silicone, and is designed in the shape of a flattened cone, with a slit at the top. When fluid or gas flows through the valve in the correct direction, the pressure forces the slit closed, preventing backflow. When the pressure is reversed, the valve opens, allowing the fluid or gas to flow through in the opposite direction. Duckbill valves are commonly used in medical devices, industrial applications, and in automotive applications where they are used to prevent fuel tank overflow during refueling.15.2mm JT.1064 Red Rubber Duckbill Valve
15.2mm JT1064 Red Rubber Duckbill valves are used for a wide variety of applications where a one-way checking function needs to be established.
Valve Materials Overview
At ValveKingdom, we provide a wide selection of materials to ensure the best fit for your application in terms of function, safety, and cost. Whether used in medical devices, automotive systems, pumps, or fluid handling solutions, our precision valves are crafted from materials that meet global quality and regulatory standards.
Elastomer Materials
Elastomers are essential in many precision molding and sealing applications due to their outstanding flexibility, resilience, and resistance to extreme environments. Each elastomer type provides unique benefits—from temperature and chemical resistance to varying hardness and elasticity—allowing for optimized performance across diverse industries. At ValveKingdom, we offer a wide selection of high-quality elastomer compounds to meet functional, regulatory, and cost requirements, ensuring your products perform reliably in their intended applications.
Silicone
Silicone is a widely used, cost-effective material known for its flexibility and biocompatibility. All our silicones are medical-grade (USP Class VI, ISO10993) and food-grade (EU1935-2004, FDA 21 CFR), with excellent temperature resistance from -40°C to +200°C. Available in multiple hardness levels from Shore A 20 to 80, silicone offers outstanding versatility for both medical and consumer applications.

EPDM
Our EPDM materials are peroxide-cured and precisely formulated for valve molding. They exhibit strong resistance to steam, polar substances, ketones, diluted acids, and alkalis. With certifications under EU1935-2004 and FDA 21 CFR, EPDM is ideal for sanitary and fluid systems. It performs reliably within a temperature range of -40°C to +120°C.

Fluorosilicone (FVMQ)
Fluorosilicone combines the temperature stability of silicone with the chemical resistance of fluorocarbon. It is highly resistant to fuels, oils, and hydrocarbons, making it an excellent choice for automotive and industrial applications exposed to aggressive environments.

Fluorocarbon (FKM)
Fluorocarbon elastomers provide exceptional resistance to strong chemicals, solvents, and high temperatures. They are widely used in harsh environments such as fuel systems and chemical processing, where long-term sealing integrity is essential.

Plastics
Our range of engineered plastics includes Co-Polyester, Polycarbonate, Glass-Filled PPE, and PEEK. These materials meet medical, food, and automotive standards, offering high strength, chemical resistance, and stability for complex valve assemblies.
If you have specific material requirements or challenges, our Application and Sales Engineers are ready to help. With extensive experience in functional design and problem-solving, ValveKingdom delivers material solutions tailored to your exact needs.