Zero pressure start switch sensitive brass plunger wear neutral media the best choice for application of industrial furnaces, drying equipment, HVAC, boiler equipment, pharmaceutical machinery, petrochemical, power equipment, steel, plating coating, environmental protection equipment , soot blowing dust, textile, water treatment and other control systems. Technical parameters Nominal diameter DN15-50 principle structure step direct-acting seal material PTFE (special FKM please consult) Body Material Brass Ambient temperature -10 ℃ ~ + 60 ℃ Fluid temperature C4: -5 ~ 180 ℃ (special C2: -20 ~ 90 ℃) For fluid neutral gas, liquid, steam, hot water, air, fluid viscosity ≤22mm2 / S (50mm2 / S or less can be tailor-made) within the threaded connection, flange mounting level, coil up (prohibited vertical installation) Protection class IP54 Normal operating pressure 0 ~ 8bar (special -1bar vacuum please consult) Electrical parameters Supply voltage 220V 110VAC50 / 60Hz24V 12VDC special AC 50 / 60Hz: 380V36V rated power path ≤20mm, 40W; Tong Trail ≥25mm, 50W voltage tolerance ± 10% electrical connection ordinary type: Standard junction box * Working pressure may vary over special voltage selection, be sure to consult me ??first Division. Two-way hydraulic valve http://www.cnlidea.net/yeyafa step direct acting solenoid valve gas solenoid valve http://www.cnlidea.net/fenbuzhidongshidiancifa/145.html http: //www.electricvalve. cn / ranqidiancifa / 32.html