... F20*1.5 standard:1.6Mpa we can produce with flange or without flang Brass Plug Valve with Flange material:coppersize:F1/2"*F20 ... with flange or without flang copper content:50%-60% Work environment: air, water, oil, the temperature reaches 140 degrees Celsius, refrigerant ... temperature reaches 225 degrees Celsius, petroleum, water work under the pressure of 1.6Mpa, air, water vapor pressure reaches ...