Vijaydeep Mould Accessories Pvt. Ltd. Offers Evacuated Sealed Tube with Capillary Mechanism. Vijaydeep Mould Accessories Pvt. Ltd. Supplies standard tools, components & accessories for the tool room industry. Evacuated Sealed Tube with Capillary Mechanism is incorporated for the return of working fluid. Evacuated Sealed Tube with Capillary Mechanism is a heat pipe which is a thermal energy absorbing and transferring system which can carry about one thousand times more heat than all equivalent size of copper rod for the same temperature gradient. It is used for plastic molding, die casting and heat recovery system.