white, red, green, blue, purple, orange, yellow
WD
Carton
plastic
China
84813000
Product Description
One-Way Valve (Check Valve) Product Overview
Inspired by the functional and design principles of medical check valves, this one-way valve ensures unidirectional fluid or gas flow while preventing backflow. Its compact, lightweight, and durable construction makes it ideal for applications requiring precision and reliability.
Key Features & Design
Structure:
- Valve Body: Engineered with high-grade polymers (e.g., nylon or polypropylene) for chemical resistance and longevity.
- Sealing Mechanism: A flexible silicone or rubber diaphragm acts as the primary sealing component, responsive to pressure differentials.
- Spring-Assisted Closure (optional): Enhances sealing efficiency in low-pressure environments.
Appearance:
- Flat, low-profile circular design (typically 10-25 mm in diameter) with a smooth surface for seamless integration into systems.
- Color options include translucent/white for visibility or black for UV resistance.
Operation Principle
- Forward Flow: Positive pressure from the inlet flexes the diaphragm, allowing flow.
- Reverse Flow: Backpressure forces the diaphragm against the valve seat, creating an airtight seal.
Applications
- Inflatable products (e.g., airbeds, life vests, rafts).
- Medical devices (e.g., respiratory equipment, fluid drainage systems).
- Industrial fluid/gas control systems.
Optional Manual Relief Function
Some models include a central depressible pin for controlled deflation, enabling rapid gas release without compromising valve integrity.
Advantages
- Leak-proof performance even under variable temperatures (-30°C to +80°C).
- Low cracking pressure (<0.5 PSI) for sensitive systems.
- Maintenance-free and corrosion-resistant.
This valve combines practicality with robust engineering, mirroring the trusted performance of medical designs while adapting to modern technical demands.
