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

xi) MS sheet, lime receiving tray with excess flow back line and dose
regulating adjustable V-Notch and dose diluting hopper 1 set.
xii) G.I. Pipe interconnecting two hoppers and carrying lime to raw water
inlet stilling chamber.
.
1 range.
xiii) G.I. service water piping from wash water tank to units in chemical
house. 1 range.
xiv) 1 ton capacity chain pulley block with trolley running on monorail,
both block and trolley hand operated
DTS : Detailed Tender Specification. Page 234
1 no.
xv) 1 ton capacity ‘Avery’ platform scale with yard arm 1 no.
xvi)
Annunciator panel with the following proclamations:
a) Raw water flow rate indication, recording and continuous
integrating
1 set.
b) Wash water tank water level indicator with high and low
audiovisual alarm 1 set.
c) Clear water tank level indicator with high and low audiovisual
alarm.
2 sets.
d) Filter head loss max. audiovisual alarm 1 set.
e) P H indicator dial 1 set.
f) Electronic level indicator for each alum tank 2 sets.
g) Raw water influent valve open/shut, and operating station for
cylinder valve solenoid.
1 no.
h) Raw water pumps on/off 1 no.
i) Arrangement for interlocking wash water pump motors to start up
at low water level in wash tank and stop at high level together with
safety switch in wash pump sump coupled to audiovisual alarm.
All for totally automatic operation of wash tank filling pumps.
3 Flash mixer
i) Agitator assembly of MS construction comprising vertical MS shaft
suspended from special bearing assembly and carrying MS cross
arms with impeller blades thereon. Impeller blades with adjustable
pitch mounted to create maximum turbulence.
1 lot.
1 no