PACKAGE : I Bid Document VOLUME : II - Public Health Engineering

Chapter 20
Technical specification for electro-mechanical Plants,
equipments and accessories for Raw water Intermediate
pumping station.
20.1 Intent and Requirement.
Intent :
The intent of the tender is to select, manufacture, testing at Manufacturers’ works,
supply and delivery in duly packed condition F.O.R project site, installation,
commissioning of horizontal split casing pumping sets with accessories installed in
the Raw Water intermediate pumping station with other equipments, field testing,
operation and maintenance etc. as per the technical specification and other terms
and conditions. The horizontal split casing Raw Water pumping sets will serve as
the intermediate stage pumps of the 8 MLD water treatment plant of
GSWSP Phase III.
Source and Pump House :
The source of water shall be the RCC sump which shall receive and collect the
water lifted by the intake pumps. Intermediate pump house is proposed to be
constructed at the location about 750m distance from the intake pumping station.
Horizontal split casing pumping sets shall be installed in the Pump House. Under
the scope of this tender the electrical control switches H.T/L.T. Board, indication
and metering, instrumentation etc. shall be housed in the Pump House to be
constructed for the purpose.
Present Phase and Future Phase Requirement :
There shall be total 3 nos. horizontal split casing pumps of identical type for the
present phase and the same shall be operated as two pumps in parallel conditions of
any combination and shall deliver the station flow of 8 MLD in 20 Hrs. of operation
by 2 pumps. Raw water shall be transported from the intermediate pumping station
to the water treatment plant through a 500mm MS rising main pipe having
approximate length of 2500Rm.
DTS : Detailed Tender Specification. Page 223