7.8mm Silicone Duckbill Check Valve

Specification of Silicone Duckbill Check Valve

What Is a 7.8mm Silicone Duckbill Check Valve?

A silicone duckbill check valve is a type of one-way valve that allows air or fluid to flow in one direction while preventing backflow. Shaped like a duck's beak, this 7.8mm check valve opens under pressure and seals tightly when the pressure stops, making it ideal for air release and backflow prevention in low-pressure systems.

Made from high-performance silicone rubber, this valve offers exceptional flexibility, durability, and chemical resistance, making it suitable for a wide range of medical, industrial, and consumer product applications.

Key Benefits of One Way Silicone Duckbill Check Valve

• ✅ One-way airflow – Ensures controlled air release, prevents contamination

• ✅ Food & medical-grade material – Safe for use in sensitive applications

• ✅ Heat and chemical resistance – Withstands harsh environments

• ✅ No backflow leakage – The duckbill design seals tightly after pressure stops

• ✅ Reusable & long-lasting – Designed for multiple cycles and extended use

• ✅ OEM customization available – Sizes, shapes, and durometers upon request

  
  

About Hopewell

Hopewell is a professional manufacturer of custom and standard silicone valves, including a wide range of silicone duckbill check valves. We offer competitive pricing, fast lead times, and strict quality control certified by ISO standards. Whether you need off-the-shelf sizes or custom-engineered solutions, we are here to support your silicone rubber product needs.

1. Rich Experience

Hopewell founded in 2009, has a strong focus on the research and development as well as the production of silicone duckbill check valves.

2. Big Factory Area

With a 6,000 square meter production facility, including a 100,000 clean production workshop and a painting workshop, the company seems well-equipped for mold making, manufacturing and inspection.

3. In-house Mold Meking Department

Hopewell has in-house precision mold design and mold making department, we imported high precision mold making equipments from abrod, so we can produce precision premium silicone products.

4. Perfect Quality

We serve as a long-term supplier for Fortune 500 enterprises, factory price, fast delivery, strict quality control, can promise customers every product is perfect.

5. Complete Certification

Our factory has obtained ISO9001, ISO14001, ISO13485, and IATF16949 certifications.

If you are interested in silicone medical duckbill check valves, please feel free to contact us, thanks.

This 7.8mm silicone check valve is commonly used in:

• 1. Medical breathing systems and respiratory masks

• 2. Air vent valves for containers and pouches

• 3. Water bottles and fluid dispensing systems

• 4. Electronics and waterproof enclosures needing air release

• 5. Low-pressure pumps or squeeze devices

  
  

Installation is simple: insert the valve into a matching port or housing with a 7.8mm opening. It is designed to seal naturally without the need for mechanical clamps.

Vacuum Compression Molding for High Precision Silicone Duckbill Check Valves

Our 7.8mm silicone check valves are produced via vacuum compression molding, which ensures uniform wall thickness, excellent sealing performance, and minimal flash. This manufacturing process is ideal for producing valves with consistent quality and high-volume repeatability.

Tool Design - Tool Manufacturing - Compression Molding - Whole Piece Inspection - Punching Slit Cut - Punching Shape  - Quality Checking - Dust Free Packing - Shipping

Looking for a reliable supplier of 7.8mm silicone duckbill check valves? Get in touch with us today. Free samples are available for quality inspection.

• ― Standard Packaging: Packed in clean, sealed PE bags and carton boxes

• ― MOQ: Available in bulk; in-stock types ready to ship

• ― Free Samples: Available upon request for testing and evaluation

• ― Customization: Support for tailored designs and private label packaging