The new Apollo® Model “MVE” Emergency Mixing Valves are designed to ensure safe and reliable delivery of tepid water to emergency eyewash / face wash fixtures. With a locking handle for tamper-proof protection, the device includes a patented temperature and flow control feature in the event of cold water, hot water and thermostatic element failures. Made of corrosion, dezincification and scale-resistant materials, the valves are 100% factory tested and pre-set to 29.4C.