Zurn® High Temperature Thermostatic Mixing Valve. A bronze mixing valve used for non-potable system applications only. The valve designed to mix cold supply water with hot supply water and establish a set mixed supply water. The supply output water temperature has a settable range of 80 to 165 deg F with a Cv of 2.6. Maximum working pressure of 145 psi. ASSE 1017 listed and CSA Certified.