Duckbill valve
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principle Duckbill valve made of elastic neoprene and artificial fiber with a special processing, shaped like a duckbill, called duckbill valve. In internal pressure, the duckbill exports in itself under the action of elasticity closure; increased gradually with the internal pressure, duckbill exports gradually increased, the liquid to discharge at high flow rates. standard The earliest design duckbill valve, to matched with the national standards, the provisions of the 800 the following caliber duckbill valve flange standard reference GB 1.0MPa bolt hole center distance and diameter of flange, pipe diameter of more than 800 (inclusive), according to GB 0.6MPa bolt hole center distance and diameter of flange. effect Editor Rubber duckbill valve can prevent floods and sewage intrusion into the sewers and streets in the basement, to avoid heavy losses and prevent the rise of the water level and flood intrusion into the sewage treatment plant, drainage pumping station; to prevent sewage or there is the smell of the odor of fluid diffusion, and be ready for the drainage; in the rainy season, to prevent urban river flood from the sewer and pour into the streets; quality is better than the door, overcome the shoot, such as door is not tightly closed and some defects.
principle
Duckbill valve made of elastic neoprene and artificial fiber with a special processing, shaped like a duckbill, called duckbill valve. In internal pressure, the duckbill exports in itself under the action of elasticity closure; increased gradually with the internal pressure, duckbill exports gradually increased, the liquid to discharge at high flow rates.
standard
The earliest design duckbill valve, to matched with the national standards, the provisions of the 800 the following caliber duckbill valve flange standard reference GB 1.0MPa bolt hole center distance and diameter of flange, pipe diameter of more than 800 (inclusive), according to GB 0.6MPa bolt hole center distance and diameter of flange.
effect
Editor
Rubber duckbill valve can prevent floods and sewage intrusion into the sewers and streets in the basement, to avoid heavy losses and prevent the rise of the water level and flood intrusion into the sewage treatment plant, drainage pumping station; to prevent sewage or there is the smell of the odor of fluid diffusion, and be ready for the drainage; in the rainy season, to prevent urban river flood from the sewer and pour into the streets; quality is better than the door, overcome the shoot, such as door is not tightly closed and some defects.
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