... 3,PN:PN1.6-4.0MPa 4,Type:control valve Remote control pneumatic valveMainly technical inspection1,Material: lining ceramic/ body carbon ... +230~450,Bellows sealing type -40~+350with the body as one-piece-45~+400Gland typeBolted glandPackingV shaped PTFE packing,PTFE yarn ... ,PTFE-impregnated asbestos yarn,asbestos yarn with graphite,graphite packing Remote control pneumatic valve