The oxygen manifold would be of above size of bulk oxygen cylinders. It is suitable to with stand a pressure of 2400 PSI.
The main frame are made out of 50 X 50 X 6 mm angle iron and bottom frame of 20 X 20 mm MS square are install in such a way that the cylinders must be stage for use in upright position and are not fell down under any circumstances.
The gases passed through inter-connecting tail pipes duly fitted with suitable bull nose and nut adopter for cylinder valve and tube size is 10 mm OD Copper tube duly annealed having wall thickness 1.5 mm in spiral shape and the other end of the tail pipe are fixed with non-return valve.
The non-return valve are fixed in brass block of size 25 mm square vertically which are fitted with high pressure copper tube of size 15mm OD having wall thickness 1.5 mm. Both the arms of manifold further fixed in automatic control panel.