Henan Lianghe Pipeline Equipment Co.,Ltd
                                                                                                           
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23 Years
Since 2003
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EPDM Rubber Duckbill Check Valve 50-1200mm for Drainage Systems with 0.01m Opening Pressure

Price Negotiable
Price: $2.6-16.9 per set
MOQ: 1 piece
Delivery Time: 1-7 day
Brand: Liang He
Product Description
Product Overview & Key Benefits
Core Functions
Prevents sewage and flood backflow in drainage systems, protecting streets and basements from water damage
Blocks odor diffusion from sewage and odorous fluids, maintaining air quality in indoor and outdoor drainage systems
Opens at minimal water head pressure (0.01 meters) with extremely low head loss for efficient operation
Maintenance-free design with no moving parts, ensuring long service life and reliable performance
Customizable installation options to meet specific project requirements with cost-effective implementation
Installation Guidelines
Step-by-Step Procedure
Select appropriate valve size and EPDM material based on fluid type, pressure, and temperature requirements
Thoroughly clean pipes before installation, removing all contaminants and debris
Position valve with duckbill facing flow direction and slide gently into place without forcing
Secure with clamps as needed, ensuring tight seal without damaging valve or pipeline
Conduct leak testing by running water or air through system to verify proper backflow prevention
Technical Specifications
Model Pipe Diameter (mm) Length (mm) Height (mm) Flange OD (mm)
XH8150-125-X 50 125 47 150
XH8180-175-X 80 175 72 200
XH81100-225-X 100 225 97 225
XH81150-350-X 150 350 147 275
XH81200-375-X 200 375 197 338
XH81250-475-X 250 475 247 400
XH81300-560-X 300 560 297 485
XH81350-625-X 350 625 344 525
XH81400-700-X 400 700 394 588
XH81450-780-X 450 780 444 625
XH81500-880-X 500 880 494 688
XH81600-1000-X 600 1000 494 800
XH81700-1000-X 700 1000 694 969
XH81800-1260-X 800 1260 794 1080
XH81900-1400-X 900 1400 894 1150
XH811000-1520-X 1000 1520 988 1250
XH811200-1725-X 1200 1725 1188 1485
EPDM rubber duckbill valve for drainage and blowdown applications showing product dimensions and installation
Frequently Asked Questions
Can I visit your factory before placing an order?
Yes, we welcome customers to visit our factory and inspect product quality firsthand.
Have your products been exported internationally?
Yes, our valves have been successfully exported to over 25 countries including USA, France, Australia, UAE, Saudi Arabia, Russia, Brazil, and many others across Europe, Asia, and the Americas.
What is a Duckbill Check Valve?
Duckbill check valves are one-piece elastomeric components that function as backflow prevention devices and one-way check valves.
What rubber materials are available?
We offer various rubber materials including natural rubber, butyl rubber, nitrile rubber, EPDM rubber, neoprene, and fluorine rubber to suit various application requirements.
What are the components of a duckbill valve?
The duckbill valve primarily consists of elastic neoprene reinforced with man-made fibers for durability and performance.
How do you guarantee product quality and warranty?
If any quality issues arise during use, we provide return and replacement options according to consumer requirements.
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Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Henan Lianghe Pipeline Equipment Co.,Ltd
Location Pipeline Industrial Park, Gongyi City, Henan Province, China
Contact Person Kelly

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