... : 0. 6mpa6) Heat preservation: 72h7) Hail resistance: 25mm8) Tube standards: 14, 16, 18, 20, 24, 30, or ... Vessel. Use this work station in the complete system (Split high pressure solar water heater) , just ... connect all parts.Tank's Capacity(L)Vacuum tube copper coilWork station or Intelligent controllerLoading quantity 20 ... solar water heater solar water heating system (ISO,CE,Solar Keymark)