... , 1"-6", larger size can be customized Materials: SUS Reversing ValveProduct Name: reversing valveSpecification: DN15-DN150, 1"-6", larger size can be ... ,SUS316LSealing ring: silicon gel,EPDM or VITON(FPM)Surface treatment: mirror polishing,semi-polish,matt finishing ,sandblast or acid washingWorking pressure ... caseStandard: DIN,SMS,3A,ISO,IDF,RJT,AS,BS,BPE Reversing Valve