R2008-227 ACCEPTING THE BID - Laserfiche WebLink

Home Browse Search

. � COUNCIL COMMUNICATION FORM PURCHASING & INTERNAL SERVICES MEMORANDUM #08-81 , November 17, 2008 TO: Honorable Mayor Carrigan and City C uncil FROM: Ryan P. McCrady, City Manager Ron Neufeld, Financial Management Director Deborah M. Perry, Purchasing Supervisor� SUBJECT: Bids for water tank altitude valve SUMMARY RECOMMENDATION: Staff recommends awarding contract to Burdick Plumbing and Heating Co., Inc. to remove existing valve, furnish and install one (1) 16" Golden Anderson Industries#3300-D double-acting altitude valve. BACKGROUND: The new valve will replace the original existing valve that was installed in the Division Street water tank when it was built in the mid to late 1950's. The old valve is obsolete. The low bid submitted by T.A. Brinkoetter does not meet City of Decatur specifications. The Brinkoetter bid was for a Cla-Val rather than the Golden Anderson valve as specified by the City. The Cla-Val is a spring loaded design where the disc controls the flow of the water when closing. It will not throttle before closing and may cause water hammer, which could result in water main failures. � The bid submitted by Burdick Company meets the City of Decatur specifications with a Golden Anderson valve. The Golden Anderson valve uses a piston design with "V" ports that throttle when closing. This will result in a longer effective closing time and excellent surge control. The Division Street water tank was originally designed with a throttle valve. Water Services staff believes the throttle valve design is critical in minimizing water hammer that can cause water main failures. Burdick Company has provided the City with the necessary bonding requirements for this proj ect. POTENTIAL OBJECTION: None INPUT FROM OTHER SOURCES: Water Services requested the valve replacement and � wrote the bid specifications. STAFF REFERENCE: Keith Alexander, Director of Water Management, 424-2863. Randy Miller, Water Services Manager, 875-5705. Keith will be at the City Council meeting to answer any questions City Council may have about this purchase. BUDGET: $26,000 from the Water Capital Project Fund.