... storage tank as complete projects, water in solar vacuum tube for heat transferring, by circulation pump and relative system to ... , please let us know, we will design a satisfactory project for you.Specification1. Split Tank Capacity: 500L, 1000L,5000L, 10000L, ... steel sheet : 0.4-0.6mm4. Insulation material: Imported Polyurethane foam with high density5. Vacuum tube: Borosilicate glass 3.36. Hail ...