... (It can be electric type)Applications: Control flow, pressure, temperature, etcTwo types: modulating/control type, shut off/on-off typeMediums ... pressure Mpa0.1-0.40.4-0.7Inherent flow characteristicsLinear ,Equal-percentage,Quick-openInherent rangeability50:1Leakage levelHard ... TEM, middle TEM, low TEM, bellows sealing type, jacket insulation type, shut-off control typeWorkshop pictures: That are ...