... opens and shuts to control the flowing of liquid and gas through the pipes. Specifications Working pressures scope: 0-10kg/ ... Maximum pressure-resisting: 16kgs/ cm2 Fluid available: Air, gas, oil, coal gas, liquid gas. Viscosity of the fluid: Below 20 CST. Operating temperature ... than 150,000 times Insulation grade: Grade B Coil temperature rising: Below 75 Power consumption: less than 15W Notice a. ...