Bids Are Invited For Acquisition Of Flanges, Curves, Gloves, Tés, Records, Levels, Bushings, Tubes, Type Y Filters, Screw Set, For The Installation Of Barliletes, Pressure Reducing Valves, As Well As The Venture Triple Function, As Shown In The Reference Term And Annexes.

Reducing Valve And Dn Pressure Sustainer 50 Pressure Reducing Valve, Material: Nodular Cast Iron And Various Other, Two Pilots And Ends With Flanged Joint Flanges, Dimensions: Dn 50 Valve And Pressure Sustainer For The Execution Of Cold Water Infrastructure Systems. The Valve To Be Proposed To Samae Of Ibiporã Should Have The Functions Of Downstream Pressure From The Installation Point And Sustain The Pressure To The Amount Of Installation Point And This Equipment Will Have As Basic Constituents The Following: Body, Lid And Actuator Made By Founding Process From Nodular Cast Iron As With Abnt Nbr 6916 Grade Fe 42012 Or Astm Standard At 536 65-45-12 Or Another League (Other International Standards) Provided That It Is Equivalent To These Previously Presented; Hydraulic Circuit (Valve Command) Will Consist Of Tubes Made From Copper Alloy, Connections Made From Forged Brass Alloy And Other Devices Made From Metal Alloys Compatible With Copper Alloy; Diaphragm Made From Buna N Synthetic Rubber Or Natural Rubber Reinforced With Nylon; Valve Headquarters And The Two Pilots Will Be Manufactured From Bronze Metal Alloy Or Equivalent; Valve Spring And Axis Made From Stainless Steel Alloy According To The Abnt Nbr 5601 Standard Abnt 302 (At Least); The Seals All Manufactured From Natural Rubber Boa N; Locking Valves And Control Gauge Will Be Manufactured With Stainless Steel Alloy Box (Alloy According To Manufacturers Design) And The Groceries Should Specifically Have Glycerin Filling For Excessive Pressure Variations; The Valve Sealing System Will Be Made From Polyurethane; Valve Sealing Headquarters Will Be Made From Bronze Alloy And Other Existing Components Shall Meet The Valve Design. Others, Dectal, Molten Iron Flange Ductile (Nodular) Dn 50 Flange Single, For The Execution Of Cold Water Infrastructure Systems, Manufactured By Casting Process From Molten Alloy (Nodular) According To The Abnt Nbr 6916 Standard, Extremity With Flanged Joint Flange, Compliance With Abnt Nbr 7675 ( Pertinent) And In Iso 2531, Pn 10 Pressure Class, The Connection Will Be Delivered Without Internal Thread And When Required By Samae, With The Respective Flanged Joint Accessories: Screws, Nuts And Washers And Hydraulic Cardboard Joint Or Other Product Indicated By The Attached Technical Staff, The Internal And External Coating Of The Connection Will Have To Be Anti -Corrosion And Will Be Performed By Application And Will Be Executed By Application From Paint With Black Bituminous Paint And It Will Necessarily Have Great Grip And Exemption From Any Kind Of Nonconformities, Such As Lining At Any Point In The Connection, Presenting Scale Or Being Brittle In The Presence Of Low Temperatures And Being Sticky In The Presence Of High Temperatures Due To Climatic Conditions, The Connection Will Be According To All Abnt Nr Standard 7675 And Iso 2531 (Including Drilling And Dimensional Of The Flanges) And All Other Rules Listed In This Technical Specification, Including Their Normative References, Dn 50.