Technical data

EPI – New Delhi Volume-2B, Rev.0 Page 11 of 11

B) AIR RECEIVERS

1 no. of Air Receiver of 4 m3 capacity for instrument air and

2 no. Air Receivers of capacity 6 m3 for plant air at 8 kgf/cm2(g)

operating pressure, complete with all fittings such as safety valves, drain

connection with auto condensate trap and bypass valve, vent

connections and all inlet and outlet connections with companion flanges,

supporting arrangement, access platforms, instruments etc. The

material of construction will be as per IS – 2002 – Gr. – 2A . The air

receiver will be designed, manufactured and tested according to IS –

7938, 1976 (RA 1991).

C) COOLING TOWER

Quantity : Three (3) sets (2W+1S) each of 40 cum/hr.

Type : Induced draft counter flow

Casing/ Basin : FRP

Frame Work : MS hot dip galvanized

Fills : PVC

Nozzles : Brass

Bolts, nuts, miscellaneous hardware : MS electro galvanized

Fan hub & blades : Cast Aluminium

Fan type : Axial flow, direct drive

Fan speed : 720 rpm

Degree of protection of motor : IP 55 (temperature rise limited to class

Ladder : Galvanised steel ladder with safety cage & hand railing up to

the top of tower. Inclined to 30

to the vertical

Eliminators : No. of deflector to be arranged to reduce drift loss < 0.2%

of water circulation.

Cooling Tower Accessories:

(i) Level switch at cooling tower basin (to be interlocked with pump)

(ii) Make up connection with float valve (float made of copper) &

back up ball valve

(iii) Quick fill connection with ball valve

(iv) Overflow connection

(v) Drain connection with ball valve

(vi) GI wire mesh 18 gauge strainer

(vii) Equalizing line of cooling towers with isolation valves