The Speakman STW-350 Safe-T-Zone Thermostatic Mixing Valve is a high-quality, cost-effective solution for supplying tepid water to your emergency shower. Featuring a 62.5 GPM flow capacity, this mixing valve is able support multiple configurations of emergency stations, emergency showers or eye, eye/face washes totaling a flow of 50 GPM at 30 PSI. Every Safe-T-Zone Valve is preset to 85° F, but is equipped with an adjustable set point, enabling you to set a custom temperature limit ideal for your facility ensuring you are within ANSI/ISEA Z358.1 guidelines. The Safe-T-Zone Valve provides 41.1 GPM cold water bypass in the event of a hot water failure and includes a positive shut-off when the cold water supply is lost. The Speakman Safe-T-Zone is constructed entirely of brass and is certified to ASSE 1071, CSA B125.3, ANSI/NSF 372 standards as well as being cUPC certified.