... 3,PN:PN1.6-4.0MPa 4,Type:control valve Remote control pneumatic valveMainly technical inspection1,Material: lining ceramic/ body carbon ... globe valveSize15,20,25,32,40,50,65,80,125,150,200mmPressurePN1.6,4.0,6.4MPaFlange StandardJB/T79.1(2 ... ,PTFE-impregnated asbestos yarn,asbestos yarn with graphite,graphite packing Remote control pneumatic valve