Danfoss Flomatic Corp. has introduced the new Model SDC or Single Detector Check Valve. This ductile iron lead-free body is designed to protect the potable water supplies from potential backflow. This valve is made up of lead-free internals, such as Noryl® seat ring and retainer, lead-free bronze disc holder, stainless steel springs and silicone discs. The SDC has a pressure maximum of 175 psi, with a temperature max of 140