Bids Are Invited For Price Registration For Valve Acquisition in Brazil

Work Detail

Triple-Function, High-Performance Suction Valve, Nominal Diameter Dn 50 Millimeters, Must Have An Automatic Air Expulsion Orifice. The Air Admission Capacity Through The Kinetic Orifice With A Differential Pressure Of - 0.4 Bar Must Be At Least 1000 M3/H. The Air Expulsion Capacity For The Kinetic Orifice With A Differential Pressure Of 0.4 Bar Must Be At Least 1900 M3/H. Construction Requirements: - Triple-Function, High-Performance Suction Valve For Treated Water, Body With Nominal Passage; - Flanged End According To Abnt Nbr 7675 Pn10; - Compact Format, With Aerodynamic Internal Passage, To Guarantee High Performance For Air Intake And Expulsion; - They Can Be In A Single Or Double Body; - For A Double Body, The Automatic Must Be In A Compact Format With A Vertical Float Made Of Expanded Polypropylene With An Epdm Sealing Tongue For Releasing Air Under Pressure And A Kinetic Polycarbonate Float (Expulsion Of Air During Filling And Admission During Emptying); - Kinetic Buoy In Polycarbonate Or Stainless Steel With Spherical Shape; - Automatic Float In Expanded Polypropylene; - For Single Body, It Must Have Floats (Automatic And Kinetic) In Polypropylene With A Cylindrical Shape; - Both Bodies Must Have A Vulcanized Seat Ring, With The Metal Part In Bronze Astmb-62B271 C83600, Or Higher And The Sealing Ring In Epdm; - Working Pressure From 2 Mca (0.2 Kgf/Cm²) To 100 Mca (10 Kgf/Cm²); - Absolute Sealing With Water At A Pressure Of 0.2 Kg/Cm² Or Less; - Epdm Gaskets And Seals; - Body And Lid Made Of Ductile Cast Iron Astm A536 Gr.60-40-18 Or 65-45-12; - The Floats Must Have Vertical Movement, Always Obtaining The Seal At The Same Point, Using A Guide; - Operating Temperature Up To 60 C; - Stainless Steel Screws; Aisi-304; - Diameter 50Mm; - Internal And External Epoxy Powder Coating, Electrostatically Deposited With A Minimum Thickness Of 90 Microns; - Suction Cup Provided With Impact Protector Or With Body Designed With F, Pressure Reducing Valve, Application: Drinking Water; Type: Self Hydraulically Operated; Actuator Type: Dual Chamber Actuator; Nominal Diameter: 100Mm; Ends: Flanges Nbr 7675 Pn 10; Working Pressure: 0.7 To 16 Kgf/Cm² (Pn 16); Body Material: Ductile Cast Iron; Body Shape: Globe Type With Y Shape; Finish: Internal And External In High-Fusion Epoxy In Accordance With Astm-D 1654 Or Iso 9227, With A Minimum Thickness Of 150 Microns; Diaphragm Material: Natural Rubber Reinforced With Nylon Mesh; Lower And Upper Support Disc Material: Steel; Disc Material: Aisi 304 Stainless Steel; Closing Disc Material (Shutter): Stainless Steel Aisi 410 Or Higher; V-Port Disc Material: Pom (Hostaform C-9021 Special Polymer); Spring Material: Stainless Steel Aisi Series 300; Central Axis Material: 300 Series Stainless Steel; Shaft Bushing Material: Bronze C83600; Closing Seat Elevation: Minimum 30Mm; Seat Ring Material: 300 Series Stainless Steel; Closing Disc Seal Material (Obturator): Natural Rubber; Distance Between Flanges: According To Standard En 558-1; Operating Temperature: Up To 80 C; Flow Coefficient: Minimum 140 M³/H; Adjustment Ratio: Up To 6:1; Control Circuit: Composed Of A Programmable Electronic Controller, Complete Control Circuit With Isolation Registers; Material Connections: Brass; Needle Registration With Brass Body And Stainless Steel Seat/Actuator; Y Filter With Brass Body And Screen Type Filter Element, In Stainless Steel; M

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