Supply Of Anti -Return Valves For The Action “Improvement Of The Irrigation Of The Area Of ​​Barriobusto, Labraza And Moreda (Álava)” And For The Action “Project Of Modernization And Consolidation Of Irrigation Of The Ccrr Viana I (Navarra)”, Framed In The Ptr Financed By The Eu - Nextgeneration Eu, To Adjudicate By Simplified Procedural Procedure