... :DN15-DN200 3,PN:PN1.6-4.0MPa 4,Type:control valve Remote control pneumatic valveMainly technical inspection1,Material: lining ceramic/ body carbon ... to send the valve and actuatorposition signal to spot of control system.Installation(ax-cording to following picture).the pneumatic actuator ... ,PTFE-impregnated asbestos yarn,asbestos yarn with graphite,graphite packing Remote control pneumatic valve