Tenders Are Invited For Modernization Of The Water Supply Station Along With The Accompanying Infrastructure

Part 1. Modernization Of The Water Treatment Plant. Scope Of Works As Part Of The Modernization:• Demolition Of The Old Underground Clean Water Tank.• Construction Of A New Above-Ground Concrete Clean Water Tank On An Area Of ​​54.37 M2. The Total Capacity Of The Tank Is Estimated At Approximately 225 M3. Technical Data Of The Tank: - The Tank Structure Consists Of Prefabricated Wall Elements (Cylinder Sections) Placed On A Monolithic Bottom Slab And Ceiling Slabs Supported On The Walls And The Central Column. A Bottom Slab With A Thickness Of Approx. 25 Cm Is Planned, Made Of C25/30 Concrete; - Working Arrangement: Vertical Tank; - Internal Diameter Dn 8.0 M; - External Diameter Dn 8.32 M; - Internal Height 4.5 M; - The Tank Will Be Equipped With Technological Pipes; - Basic Material: Reinforced Concrete; - Thermal Insulation: Roof - Styrofoam, Thickness. Approx. 10 Cm, Thermally Weldable Felt, Cylindrical Part - Mineral Wool, Thickness. Approx. 10 Cm.• Installation Of The Casing Of The Existing Well With A Pressure Conduit To The Suw Station - A Submersible Pump Will Be Installed In The Hole On The Conduit At A Depth Of Approx. 31 M. In Order To Both Protect The Pump Against Dry Running And To Create The Possibility Of Controlling The Water Level In The Well, A Hydrostatic Gs-16 Probe Will Be Installed. A Submersible Pump Will Be Built In The Hole. The Well Will Be Operated Using Devices With The Required Certificates And Approvals. A Deep Well Head With Piping With Diameters From 50 Mm To 150 Mm And A Swivel Flange At The Top Of The Head Enabling Central Positioning Of The Water Meter To The Water Pipe Connection. The Head Plate Is Designed To Be Mounted On A Rubber Gasket With A Thickness Of Approx. 5 Mm.• Construction Of A Band Around The Clean Water Tank, Hardened With Paving Stones, With An Area Of ​​16.81 M2.• Installation Of Pressure And Drain Pipes To Connect The Clean Water Tank. The Designed Sewage And Water Supply Lines Will Be Armed With Pe 160 And Pvc 200 Pipes. The Lines Are To Be Installed In An Open Trench And In Trenches With Vertical Walls, Protected By Box Formwork. The Pipeline Will Be Laid On Ordinates Consistent With The Longitudinal Profile On A Sand Bed Of Approximately 10 Cm.• Electrical Power Supply For The Clean Water Tank Technological System: - Liycy Cable 2X1.5 Mm2 (Shielded) - Hydrostatic Probe Power Supply; - Hs-25 Hydrostatic Probe With Cable; - Ytksyekp Cable In Rl - Mem1g11zd Limit Switch 24V.• Replacement Of The Submersible Pump - It Is Planned To Select A Submersible Pump With The Following Power Parameters: 7.5 Kw, 400 V, Together With Pressure Lines In The Well And Modernization Of The Head. Additionally, New Electrical Wiring Of The Existing Deep Well Is Planned.• Replacement Of The Electrical Switchboard In The Suw Building.• Construction Of An Alarm And Lightning Protection System As Well As Additional Fire Protection.