ASSE International has published a new Listing Evaluation Criteria (LEC) document — ASSE LEC 2010-2020, Proportional Flow Control Devices, with Protection from Cross Contamination via Hydronic Water, for Use in Drinking Water Installations. ASSE LEC 2010 devices control the flow of potable water … Continue reading ASSE International Publishes New Listing Evaluation Criteria (LEC) for Proportional Flow Control Devices, with Protection from Cross Contamination via Hydronic Water