... :DN15-DN200 3,PN:PN1.6-4.0MPa 4,Type:control valve Remote control pneumatic valveMainly technical inspection1,Material: lining ceramic/ body carbon ... installation of signal switch box:the signal switch is used to send the valve and actuatorposition signal to spot of control system.Installation ... ,32,40,50,65,80,125,150,200mmPressurePN1.6,4.0,6.4MPaFlange StandardJB/T79.1(2)-94,GB/T9113.1 ...