Technical data

EPI – New Delhi Volume-2B, Rev.0 Page 4 of 11

Design ambient condition for the compressors will be taken as

C temperature and 60% RH. Design ambient temperature for

Electrics will be considered as 50

3.1.5 Delivery Schedule

Delivery schedule will be matched with schedule of the overall package.

3.1.6 Scope of Work

The scope of the supply includes Design, Supply, Supervision, Packing,

dispatch, transportation, delivery to site, installation, testing &

commissioning completion of facilities, performance guarantee testing, and

handing over to Bhilai Steel Plant, SAIL / EPI of AIR COMPRESSORS,

RECEIVERS AND COOLING TOWERS as per specifications and scope

defined in tender documents complete with all accessories and drive, which

are not mentioned specifically but are required for the efficient and trouble

free operation of the equipment/system.

The compressors will be housed inside a building (compressed air station). The

Air receivers will be installed outside but adjacent to the building. The building

and equipment foundations including grouting and chipping works, structural

works, etc. are not covered under the scope of this specification. The

compressed air station will comprise of the following main equipment:

A) AIR COMPRESSORS

i) Three (3) sets (2W + 1S) each of 36 Nm3/min (@ 8 kgf/cm2(g)

discharge pressure after cooler) oil free, water cooled rotary

screw packaged type air compressors with electric motor and all

its accessories & auxiliaries including the following:

a) Intercooler, after cooler, moisture separator with trap station,

b) Suction air filter cum silencer,

c) Lube oil system.

d) Cooling water system including duplex type filters in supply line.

e) Acoustic enclosure along with exhaust fan and necessary illumination.

f) Each Compressor will have dual type control system, which will

permit operation of each compressor in either of the following way:

(a) Continuous Variable Load /unload regulation

(b) Automatic Start-Stop Regulation.

ii) 2 no. Refrigerant type of Air Dryer’s of Capacity 4 Nm3/min will be

provided.