CLA-VAL 90A/G-21 Fire Protection 10 Inch Pressure Reducing Valve Class 150 RF are indispensable in any fire protection system. Our diaphragm actuated design is proven highly reliable and easy to maintain. We offer both a globe or angle pattern with a full range of adjustments. These valves are also available in a variety of material options. Epoxy coating is strongly recommended for all fire system valves (excluding bronze valves). The 90G-21 and 90A-21 can be supplied with an optional internal and external epoxy coating of the main valve wetted surfaces.