Independent Control: Yes with setting, control, monitoring, temperature control system displays a simple cell structure: integrated structure, stable performance, easy installation and simple to use affordable: Low thermal expansion than conventional thermostatic valve cost, long-life role of technical parameters will open the way to turn off electric thermostat range -20 ℃ ~ + 350 ℃ signal range 0 ~ 10 4 ~ 20 (mA.DC) single-seat seat structure P, M sleeve supply voltage AC220V50HZ; 380V.AC 50Hz Protection class IP54, explosion-proof IP65 sealing rating Ⅳ, Ⅵ, Ⅱ, Ⅵ Ambient temperature -30 ℃ ~ + 70 ℃ (explosion-proof: -20 ℃ ~ + 60 ℃) in the form of heating select U, D cooling accessory options E- Ex-( Explosion levels: dIIBT3 / T4) Q- completely cut-off valve nominal parameters PN10, PN16, PN40, PN64 flange connection, (special: welded) Body material WCB, SS304, SS316, SS316L Spool Material G1Cr18Ni9Ti , Stellite surfacing sealing material PTFE, hard seal, a special high-temperature materials 1Cr18Ni9Ti Packing Teflon bellows, flexible graphite bushings putting rubber asbestos gaskets 2Cr13, 1Cr18Ni9Ti asbestos spiral wound gasket flange standard GB9113-88, JB / T79-94, GB2555-81 special flange ANSI, JIS, DIN sensor probe length 150mm, male thread M27x2, 3 米 cable length (can be extended) C3 group -20 ℃ ~ 200 ℃ Fluid temperature -40 ℃ ~ C4 group 250 ℃ C5 group -40 ℃ ~ 450 ℃ C7 Group -60 ℃ ~ 450 ℃ flanged stainless steel piston gas solenoid valve http://www.electricvalve.cn/ranqidiancifa/28.html flanged stainless steel solenoid valve piston http: //www.electricvalve.cn/buxiugangdiancifa/47.html www.electricvalve.cn