Tenders Are Invited For Delivery And Installation Of Water Meters And Launch Of A Remote Reading System

4.1. The Subject Of The Order Is The Implementation Of An Investment Called Delivery And Installation Of Water Meters And Launch Of A Remote Reading System, Including The Delivery And Installation Of 381 Water Meters With Complete Equipment, Additional Installation Elements, A Radio Reading System And An Interactive Gis Map.1. Technical Requirements For Water Meters - Dry-Running Or Equivalent, Single-Jet, Wing-Type Water Meters Equipped With Compatible, Paired, Detachable Radio Modules, With Inductive Reading, - Ability To Measure The Flow And Volume Of Water At A Temperature Of Up To 30 Degrees C (Cold Water) Through A Closed Installation With Full Stream Flow, At A Maximum Working Pressure Of Up To 16 Bar (Pn 16), - Water Meters Made Of Materials Resistant To Corrosion And Condensation Of Sediments, Ensuring Proper Functionality Of The Water Meter, - Possibility Of Installation On Pipelines In Horizontal And Vertical Position (H/V), - Accuracy Class Of Water Meters Not Less Than R≥160-H And R≥63-V, - Water Meter Body Made Of Brass, Electroplated, Composite Bodies Are Not Allowed, - Continuous Volume Flow Min. 2.5 M3/H For Dn20, - The Indicating Device Of Water Meters Should Ensure Free, Unambiguous Reading, The Digits On The Drums Should Be In Two Colors, The Value Of The Elementary Division Of 0.001 M3, - A Counter With Increased Tightness - Resistant To Fogging, Minimum Ip 68, - Rotation Lock Of The Counting Mechanism When Rotated By An Angle Greater Than 360°, - Rotor With Double-Sided Bearings, - Water Meters Must Be Brand New And Have A Legal Mark From The Year Of Installation, - Water Meters Must Have A Current Pzh Hygienic Certificate Allowing Contact With Drinking Water, - Water Meters Must Comply With The Regulation Of The Minister Of Economy Of October 23, 2007 On The Requirements To Be Met By Water Meters And The Detailed Scope Of Checks Performed During The Legal Metrological Inspection Of These Measuring Instruments (Journal Of Laws Of 2007, No. 209, Item 1513), - Compliance With The Pn-En 14154 Or Equivalent Standard, - Protection Of The Water Meter Against The Action Of An External Magnetic Field, - Possibility Of Current Visual Reading Of The Water Meter Status In The Event Of Damage Or Failure Of The Radio Module, - Possibility Of Mounting Directly On Radio Module Water Meter Counter, During Operation, Without Damaging The Verification Marks, Solutions Based On Reed Switch And Optical Transmitters Are Excluded, - Possibility Of Expansion With An Additional/Replacement Device In Case Of Difficult Reading Conditions (Deep, Flooded Wells), - Water Meters Must Be Covered By A 5-Year Warranty From The Date Of Installation. 2. Remote Reading System - Radio Overlays With Wireless Transmission Of Measurement Data From The Water Meters Described Above, At A Distance Of At Least 300 M In An Open Area, Ensuring Remote Reading Without The Need To Access The Apartment Or Commercial Premises, The Possibility Of Radio Reading At Any Time, -