Home >> Products >> For Commercial Application, Cold Chain / Valves ◆BGV Ball Valves ● The main body is of sealed construction by welding. ● Rotating the valve stem just a quarter turn will enable the valve to fully open or close, with no restriction on the direction of flow. ● Service refrigerants: R134a, R22, R404A, R407C BGV Ball Valves 7-17-24, Todoroki Setagaya-ku, Tokyo, 158-0082, Japan.