KES58 Vacuum tube: 58x1800mm Inner tank: Stainless Steel 304 2B food grade Outer tank: Aluminum Galvanized sheet Folded from mould with powder painting Outer tank dia.460mm Frame: Aluminum with anti-oxidation treatment Insulation: 50mm polyurethane total forming with pressure and best density 40kgs/m3 Available sizes: 18, 20, 22, 24, 28, 30, 36 tubes with capacity 135L up to 325L Note: 1. with heater exchanger 12mm,max.pressurized 8bar; 2.state water supply direct enter into the inlet water hole, go through the heat exchanger hot water come out from the outlet water hole; 3.the air vent hole can connected with central heat supply pipe to heat the tank wate