... 1)Used in any medium 2)Applied in petroleum and petrifaction,watercooling ect. 3)Sensitive&reliable action Oil flow ... as simple usage, small bulk, light weight, sensitive and reliable action, and etc.Technical parameterMax. ambient temperature: 80 Max. fluid temperature ... medium: R134a, R22, R407C, R404A/R507, oil and mixture of oil and refrigerant. Type dataModelConnection size(inch)Flow rate range(L ...