Duckbill Check Valve 50-500mm with 0.001MPa Opening Pressure for Wastewater and Chemical Applications
Price:
Price Negotiable
MOQ:
1 set
Delivery Time:
After payment 15-30 working days
Brand:
liwei
Product Description
Product Overview
The rubber duckbill check valve features a unique "duckbill-shaped" design with forward discharge and reverse check functionality. Constructed from elastic chloroprene rubber and artificial fibers, this valve maintains structural integrity while providing reliable backflow prevention.
Key Features
Superior Check Performance
Automatically closes under elastic action when pressure is absent, opens gradually with increasing flow pressure, and seals completely when flow stops to prevent backflow.
Low Opening Pressure
Operates with minimal pressure requirements - opens with water head greater than 0.01 meters (0.001MPa) and functions effectively under static conditions.
Minimal Head Loss
Maintains efficient flow with minimal pressure loss during normal operation.
Wide Chemical Compatibility
Suitable for various media including weak acidic, alkaline, and wastewater applications.
Technical Specifications
| Type | Nominal Diameter (mm) | Length L (mm) | Height H (mm) | Flange Diameter C (mm) |
|---|---|---|---|---|
| XF50-158-T | 50 | 158 | 100 | 25 |
| XF80-232-T | 80 | 232 | 140 | 40 |
| XF100-270-T | 100 | 270 | 200 | 40 |
| XF150-360-T | 150 | 360 | 265 | 50 |
| XF200-450-T | 200 | 450 | 325 | 50 |
| XF250-560-T | 250 | 560 | 425 | 75 |
| XF300-650-T | 300 | 650 | 525 | 115 |
| XF350-750-T | 350 | 750 | 625 | 115 |
| XF400-850-T | 400 | 850 | 725 | 135 |
| XF450-950-T | 450 | 950 | 825 | 150 |
| XF500-1060-T | 500 | 1060 | 925 | 200 |
Product Characteristics
- Effective backflow prevention
- Environmentally friendly design
- Strong adaptability to various conditions
- Excellent anti-clogging performance
- Built-in buffering and noise reduction
- High customizability for specific applications
Manufacturing Excellence
- 36 years of industry expertise and technical experience
- High-quality finishing with bright, smooth spherical appearance
- Professional rubber mixing center with material transparency
- Galvanized steel wire and multi-layer nylon cord fabric construction
- Contributor to national standard GB/T26121-2010 for flexible rubber joints
- Utility model patent holder (Patent number: 032418558)
Frequently Asked Questions
What is the brand name of these products?
The brand name is Liwei.
What is the minimum order quantity?
Minimum order quantity is 1 set.
Are you a manufacturer or trading company?
We are a professional manufacturer with 36 years of experience.
Can you customize products according to client requirements?
Yes, we offer full customization with professional technical support for drawing specifications.
Product Images
Similar Products
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Henan Liwei Industry Co., Ltd.
Location
179 Zhongxin Road, Zhengzhou, Henan，China
Contact Person
Carey Liu