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Controls thermal water expansion in closed hydronic heating systems. Maintains system pressure below safety relief setting range. Welded construction with butyl rubber diaphragm. Potable water models include polypropylene lining to avoid rusting.
Two-way fan coil zone valves are used to control hot or chilled water in commercial HVAC equipment such as fan coil units, terminal reheat coils and convectors. Not for use in systems containing dissolved oxygen.
Three-way fan coil zone valves are used to control hot or chilled water in commercial HVAC equipment such as fan coil units, terminal reheat coils and convectors.
Service Kit for VU-Series fan coil valves.