- For direct connection of nipples Art. G.147 - G.149, elbow fittings Art. G.155 - G.156 and tee fittings Art. G.158 and G.159. - For direct connection to male outlets of the following manifolds: G.015 - G.016 - G.019 - G.020 - G.022 - G.024 - G.026 - G.030 - G.033. Pag. 12 - 17 - For direct connection of valves with M. fittings Art. V.030 - V.031 - V.032 - V.033 - Art. V.070 - V.071 - V.072 - V.073 - V.051 - V.052 and ball valve Art. M.00. Pag. 73.