Tenders Are Invited For Implementation Of Smr Of The Site Internal Sewerage Network, External Collector And Wwtp Kavrakirovo Village I-St ​​Stage, Petrich Municipality

The Purpose Of The Project Is The Organized Collection, Removal And Purification Of Waste Water In The Village Of Kavrakirovo. Within The Framework Of This Order, The First Stage Of The Project Will Be Implemented, Including Main Branch Ii, Branch 22, Branches From 24 To 36 Inclusive With A Total Length Of 3110.70 M. The Implementation Will Be Carried Out With Pipes Made Of Polypropylene Pp-B (Polypropylene Copolymer), Produced By The Extrusion Method. The Execution Includes Main Branch Ii Dn250 - 88.05 M; Dn315 - 200.29 M, Dn400 - 121.85 M, Dn500 - 205.53 M, Dn1000 - 146.66 M; Branch 22 Dn315 - 125.08 M, Dn400 - 89.93 M; Branch 24 Dn315 - 107.41 M; Branch 25 Dn315 - 220.57 M; Branch 26 Dn315 - 245.73 M, Dn500 - 57.78 M; Branch 27 Dn315 - 84.9 M; Branch 28 Dn315 - 81.1 M; Branch 29 Dn315 - 93.69 M, Dn400 - 148.29 M, Dn500 - 317.77 M; Branch 30 Dn315 - 230.12 M; Branch 31 Dn315 - 98.82 M; Branch 32 Dn315 - 137.23 M; Branch 33 Dn315 - 44.09 M; Branch 34 Dn315 - 79.69 M; Branch 35 Dn315 - 72.77 M; Branch 36 Dn315 - 113.39 M. For Sewer Revision, According To The Design Norms, Revision Manholes, Storm Drains And Building Diversions Will Be Built. The Inspection Shafts Will Be Made Of Prefab Elements Pvc Pipes F1000. The Covers Of The Manholes Are Provided From Polymer Concrete. The Base Of The Shafts Is Concrete. The Steps For Entering The Inspection Shaft Are Corrosion-Resistant. The Waste Water From The Properties Will Enter The Sewage Branch Through The Sko (Building Sewer Diversions). The Project Envisages The Construction Of Sewage Diversions From Each Property To The Regulation Line. Sewer Diversions Will Be Built With Pp Dn/Od 200 Sn8 Sewer Pipes. For The Reception Of Rainwater From The Roadway, The Construction Of Rainwater Intake Shafts With A Sedimentation Part Is Planned. The Rain Receivers Consist Of An Entrance Grid, According To Bds 1623, A Vertical Body With An External Diameter Of 400Mm - Ppdn/Od 400 With Ring Stiffness Sn≥8 Kn/M2, According To Bds En13476. The Rain Receivers Are Connected To The Street Channel By Means Of An Adapter With A Minimum Diameter Of Dn/Od 200, Without A Siphon Device For Water Closure. The Rain Gutter Grate Will Be Made Of Cast Iron. ​​​​​​​ ​​​​​​​