... :DN15-DN200 3,PN:PN1.6-4.0MPa 4,Type:control valve Remote control pneumatic valveMainly technical inspection1,Material: lining ceramic/ body carbon ... .1(2)-2000MaterialsZG(230-450),ZG1Cr18Ni9Ti,ZG1Cr18Ni12Mo2Ti etc.BonnetStandard type-17~+230,Heat type+230~450,Bellows sealing type -40~+350with ... ,PTFE-impregnated asbestos yarn,asbestos yarn with graphite,graphite packing Remote control pneumatic valve