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Construction Work For Water And Sewage Pipelines – Declaration Of An Open Process For The Selection Of A Contractor For The Project: Construction Of An External Water Supply Network For Communities Of D.E. Philip From The Sources Of Voirani. The Project Concerns The Construction Of An External Water Supply Network For The Communities Of Lydia, Krinides, Philippi, Krioneri, Polystylos, Amygdaleonas And Zygos Of D.E. Philippon Of The Municipality Of Kavala From The Springs Of Voirani. It Includes The Construction Of A Water Supply Network With A Total Length Of 26,000 Meters And In More Detail: • A Length Of 10,010 Meters Of Pe 100 Polyethylene Pipes With A Solid Wall And Diameters From Dn110 – Dn315 Mm; • A Length Of 15,990 Meters Of Malleable Cast Iron Pipes With Diameters Of Dn125 - Dn 300, Class C40. It Is Planned To Build Three (3) Pumping Stations In Locations Near The Dischargers Of The Central Water Supply Pipeline (K.A.Y.) That Connects The Springs Of Voirani With The Central Water Supply Pumping Station D.E. Kavala In Amisiana. The Following Will Be Constructed: • A.Y.1 Near The Well Φ14 For The Water Supply Of The Area Of The Krinido Clay Spa And The Community Of Lydia; • A.Y.2 Near The Well Φ23 For The Water Supply Of The Communities Of Krinido, Philippi, Kryoneri And The High Zone Of The Zygos; • The A.Y.3 Near The Well Φ32 Of The K.A.Y., For The Water Supply Of The Settlements Of Zygos, Neo Zygos (Refugees), Polystylos, Datos, Mikrochorio, Amygdaleonas And Stavros. All Three (3) Pumping Stations Will Have A Rectangular Floor Plan, Maximum External Dimensions Of 11.40*6.60 (L*W), Will Include A Wet Suction Chamber, With A Useful Capacity Of 55 M3 And A Dry Pump Installation Chamber. The Proposal For The Pumps Is To Meet The Twenty Year Needs And There Will Be Room To Fit Additional Pumps To Meet The Forty Year Needs. For Purely Technical Reasons (Avoidance Of Very High Pressures) Two (2) Intermediate Pumping Stations Will Be Constructed, In Appropriate Positions On The Roads To The Settlements Of Philippi And Krionerio. A Total Of 17 New Pumping Stations Will Be Installed, Operational And Spare. At The Pumping Stations A.Y.1., A.Y.2, -Dej-Kr- Orthopetra, Intermediate To Philippus, Intermediate To Kryoneri And A.Y.3, An Equal Number Of H/Z Of Similar Power Will Be Installed To Cover The Need For Electric Current Of The Operational Pumps And Micro-Consumptions, In Case Of Interruption Of The Electricity Supply By The Ppc. In Order To Ensure The Quality Of The Water, A Chlorination System And Control Of The Residual Chlorine Will Be Installed In The Tanks Of A.Y.1., A.Y.2, A.Y.3. And In The Reservoirs Of The Communities Of Lydia - Krinides - Philippi - Krioneri - Polystylos - Amygdaleona - X.Z. Neo Zygou (Refugees) – Zygou. For The Smooth Operation Of The Water Supply Networks, Its Management And Supervision, A Remote Control Automation System For Pumping Stations - Tanks Will Be Installed. The Project As A Whole Will Include: • One (1) Central Control Station (C.S.E.); • Twelve (12) Local Pump Stations Control Stations (T.S.E. A1 - A12); • Two (2) ) T.S.E. Intermediate Pumping Stations (T.S.E. B1 + B2); • Eight (8) T.S.E. Filling Tanks (T.S.E. D1 - D8). In Addition, There Are Provided: • Twenty-Six (26) Sluice Wells With Internal Dimensions Of 1.50 X 1.50 M; • Twenty
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