Insertable Duckbill Check Valve
Professional-grade one-way valve solution for internal pipe installation with clamp fixation. Engineered for reliable backflow prevention in demanding industrial applications.
Why Choose Insertable Duckbill Valves?
Designed for internal pipe installation with superior performance characteristics for industrial and municipal applications.
Internal Installation
Installed inside the pipe with clamp fixation for secure positioning and optimal flow dynamics.
Low Cracking Pressure
Opens at minimal pressure differential, ensuring efficient flow with minimal energy loss.
100% Backflow Prevention
Flexible elastomer design ensures complete seal against reverse flow under all operating conditions.
Self-Cleaning Design
Flexible rubber construction prevents debris accumulation and reduces maintenance requirements.
When to Use Insertable Duckbill Valves
Submerged Outfalls
Ideal for underwater discharge points where external installation is impractical or where streamlined flow profile is required.
High Velocity Applications
Perfect for systems with high flow velocities where external valves might create turbulence or flow restrictions.
Space-Constrained Installations
Optimal choice when external space is limited or when maintaining pipe aesthetics is important.
Marine & Coastal Protection
Excellent for tidal backflow prevention where the valve must withstand changing water levels and debris.
Internal Clamp Installation
Secure mounting inside pipe diameter
Installation Guidelines & Precautions
Proper installation ensures optimal performance and longevity. Follow these critical guidelines for successful deployment.
Installation Best Practices
- • Ensure pipe diameter matches valve specifications exactly
- • Position clamp 6-8 inches from pipe end for optimal performance
- • Verify flow direction alignment before final installation
- • Use stainless steel clamps (SS304 or SS316) for corrosive environments
- • Allow minimum 3 pipe diameters straight run upstream
- • Test valve operation before system commissioning
Critical Precautions
- • Never exceed maximum operating pressure specifications
- • Avoid installation in pipes with sharp internal edges
- • Do not over-tighten clamps - may damage valve body
- • Prevent contact with petroleum-based lubricants during installation
- • Ensure adequate access for future maintenance and inspection
- • Verify material compatibility with process fluids before installation
Professional Installation Recommendation
For critical applications or complex installations, we recommend professional installation by certified technicians familiar with duckbill valve systems.
Our technical team provides installation support and can recommend qualified installers in your area. Contact us for detailed installation drawings and technical assistance.
Technical Specifications
Engineered for demanding industrial applications with customizable options
Standard Specifications
Material Options
Rubber Body Materials
Clamp Materials
Primary Applications
Trusted by industry leaders worldwide for critical backflow prevention
Wastewater Treatment
Effluent discharge lines, clarifier outlets, and treatment plant outfalls requiring reliable backflow prevention.
Stormwater Management
Urban drainage systems, culvert outlets, and detention pond discharge points in municipal infrastructure.
Industrial Processes
Chemical processing, power generation cooling towers, and manufacturing discharge systems.
Marine & Coastal
Submerged outfalls, tidal protection systems, and marine infrastructure applications.
Flood Control
Emergency drainage systems, levee protection, and flood mitigation infrastructure projects.
Municipal Water
Water treatment plant discharge, distribution system protection, and municipal utility applications.
Why Choose GYLDT?
35+ years of engineering excellence in check valve technology
Certified Quality
ISO9001-2000, CE Certificate, EAC Certificate, and multiple R&D patents for duckbill valve technology.
Custom Manufacturing
Full customization capabilities including sizes, materials, flange standards, and custom logos to meet specific requirements.
Fast Delivery
Large inventory, high production capacity, and streamlined processes ensure short delivery times for urgent projects.
Ready to Specify Insertable Duckbill Valves?
Get professional technical support, custom specifications, and competitive pricing for your project requirements.
Email: Info@focalvalve.com | Website: www.focalvalve.com
Factory: 176th Yong'an Road, Xicun Town, Gongyi City, Henan Province, China