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1. Extremely low head loss: Built-in anti backflow device can achieve emptying at very low driving head, and opening is particularly sensitive, which is particularly important for low-lying areas with...

In urban drainage systems, rainwater pipes discharging into rivers are an important component. In order to prevent river water from flowing back into rainwater pipes, the following measures should be ...

The anti backflow device is a synthetic rubber+stainless steel structure, in the form of fluid driven check, with an embedded socket or flange connection. The entire anti backflow device should have a...