City Of Koronadal Water District Tender

Description Description Number Of Sets 2 Pump Specifications Minimum Capacity At Design Head, Lps (gpm) 25 (396.26) Total Design Head (tdh), M (ft) 64 (210) Minimum Pump Laboratory Efficiency At Design Head (exclusive Of Pump Column Friction), % 70 Design Speed, Rpm 3400 ~ 3600 Motor Specifications Motor Rating, Hp (kw) 30 (22) Phase, Φ 3 Submersible Cable Specifications Cable Length, M (ft) 70 (230) A. Pump - There Shall Be No Point Within The Operating Range On The Pump Curve Wherein The Required Horsepower Exceeds The Rated Motor Horsepower. In Addition To The Above Requirements, The Design Point Shall Be Located Within The Best Efficiency Range Of The Pump. Efficiency Range Is Within The -5% Of The Pump’s Peak Efficiency. Pump Efficiency Located Outside The -5% Range Of The Peak Efficiency Is Acceptable Provided That The Efficiency Is Higher Than The Required Minimum Pump Efficiency. Pump Element - The Impellers Shall Be Of The Enclosed Or Semi-open Type, Constructed Of Bronze, Cast Iron Or Stainless Steel, Accurately Fitted, Smoothly Finished, And Dynamically Balanced At Normal Pump Speeds. They Shall Have Removable Wearing Rings And Lateral Seal Rings Mounted In Their Companion Cases. The Bowl Cases Shall Be Constructed Of Cast Iron Or Stainless Steel. Pump Bearing Shall Be At Least 2-1/2 Times The Diameter Of The Shaft. The Pump Shaft Shall Be Of 18-8 Stainless Steel. B. Motor – The Motor Shall Be Of Squirrel Cage, Submersible Induction Type, 230v, 3400 ~ 3600rpm, 60hertz Ac. The Motor Shall Be Designed For Continuous Duty Operation And Shall Have A Minimum Service Factor Of 1.15. The Motor Shall Be Water Filled And Shall Incorporate A Mechanical Seal To Restrict Foreign Matter From Entering The Motor. The Thrust Bearings Shall Be Of Ample Capacity To Carry The Weight Of All Rotating Parts Plus The Hydraulic Thrust And Shall Be An Integral Part Of The Driver. It Shall Be Equipped With Expansion Diaphragm To Compensate For Filling Water Expansion/ Contraction Due To Temperature Changes. It Shall Be Fitted With A Permanent Non-corrosive Nameplate On Which All Nema Standard Motor Date Shall Be Stamped Or Engraved In Metric/ English Units. C. Submersible Cable – The Contractor Shall Furnish The Submersible Cables Compatible To The Maximum Load Of The Motor Units Above With Wire Size Marking On The Outer Insulator And Length Of Seventy (70) Meters For Each Set Of Pump And Motor Assembly. General Condition A. The Pump/ Motor And Accessories Shall Be Brand-new, At Most Three Years Ex-stock. B. Inclusive Of Compatible Splicing Kit And Other Standard Accessories For Each Set. C. All Equipment/ Materials Must Be Brand New. Additional Requirements (compliance Upon Submission Of Bid) A. Must Submit Original Product Catalog / Brochure Of The Units. (please Attach And Identify Specific Product Brochure) B. The Manufacturer Should Have Iso 9001:2015 Certificate. Additional Requirements (compliance Upon Delivery) A. Minimum Manufacturer's Warranty Certificate Of One (1) Year.