Duckbill Check Valves for Concrete Pipe
Duckbill Check Valves, widely used in the demanding applications of many industries, are precision-molded, one-piece elastomeric valves that provide reliable backflow prevention at low pressure differentials. Duckbill check valves allow free flow with positive differential pressure. With negative differential pressure, backflow is checked. Pressure drop across the valve is a feature unique to Duckbill Check Valves. They can be designed to operate in a few millimeters (inches) of water to several hundred kPa (psi), depending on valve size, geometry and compound characteristics. Duckbill Check Valves are also designed to start functioning at specific opening and closing pressure ranges, depending on your specifications.
•Normally Open one-way check valves
•Prevents backflow leakage when minimal backpressure is applied
•Can be installed easily into hole and sealed by compressing flange
Duckbill Check Valve Features:
Reliable backflow prevention
100% elastomeric construction eliminates maintenance
Will not corrode, warp or freeze open or shut
1”-2” Cracking Pressure, Low Head loss
Curved Bill enhances sealing around debris
Custom built for each application based on pressure and flow conditions
Available in diameters from 1/2" (12mm) to 96” (2400mm)
Note:
1. The inner diameters are matched to the pipe outer diameter on which installed.
2. The weight is approximate.
3. The dimensions are not integrated in the above table, contact Liangda for more information.
4. We can make duckbill valves with any dimensions rubber flange available as per requirement.
5. PCS are the number of half part of the clamps.
6. The usual material of the clamp is stainless steel 304, other material availble upon request.
7. Duckbill valves of dimensions in the above table are available in inventory. Any other dimensions and designs available upon request
Other supplier products
|
|
High Pressure Rubber Joint |
Flange adaptors are the most basic type of dismantling joint. On one side, it has a flange connection in accordance with the required flange standa... |
|
|
Wafer Butterfly Valve |
Soft-sealing Flange Butterfly Valve
Soft-sealing flange butterfly valve, the product made of rubber seal butterfly valve, valve plate and valve ... |
|
|
Wafer Butterfly Valve |
Lug Butterfly Valve
Lug butterfly valve is made of rubber sealing, valve plate and valve stem. Temperature: 80-120 C degree Application: foodstuff... |
|
|
High Pressure Rubber Joint |
High Pressure Rubber Joints, is also one type of single arch rubber joints, are integral rubber flanged designed for piping systems to absorb pipe ... |
|
|
Gongyi Liangda Tubes Co.,Ltd |
Gongyi City Liangda Tubes Co., Ltd. was established in 1985. Our predecessor is Gongyi Changfen Village Mechanical Factory. In 2007, our company wa... |
供应产品
Same products
