An Asse 1022 Dual Check Valve provides a low-profile way to support potable-water backflow protection where local code allows it. It is designed to block reverse flow that could carry contaminants, corrosive substances, or carbonic acid into drinking-water lines. Approved devices are essential for safeguarding potable supplies and following local and national codes. Asse 1013 Manufacturers such as Watts produce …
Understanding the Vented Design Feature of the Asse 1022 Dual Check Valve





