1. The Subject Of The Order Is The Delivery And Replacement Of Three Check Valves At The Pd-1 Rainwater Pumping Station At 45 Sobieskiego Street In Legionowo. The Scope Of Work Includes: 1. Purchase And Delivery Of Three Flap Check Valves, With A Lever And A Weight, Flanged With A Diameter Of Dn600mm For Sewage Installations With A Metal-To-Metal Seal, Along With Three Socket-Flange Connectors.2. Disassembly Of The Existing Three Check Valves Together With The Necessary Accompanying Fittings, Located In The Existing Technological Lines, In Order To Replace Them With New Elements.3. Installation Of Three New Flap And Flanged Check Valves Along With Three Socket-Flange Connectors On The Existing Technological Lines.4. Checking The Tightness Of Connections And Starting Test Of The Installed Fittings.5. Ensuring Continuity Of Operation Of The Rainwater Pumping Station During Valve Replacement.6. Preparation Of As-Built Documentation.
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