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The Textile Magazine
fEBRUARY 2012
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63
tions on the industry to ensure effec-
tive wastewater management.
Efforts would go into setting up
expensive common effluent treat-
ment plants (CETPs) and other
measures to ensure that business
functionality is not affected by the
need to be environmentally sensi-
tive. Grundfos produces pumps,
mixers, flow makers and diffusers
that are eco-sensitive and reliable,
considerably helping customers
save water.
Tirupur is one of the largest tex-
tile manufacturing hubs in India.
With rising business demand, there
is growing concern over discharge
of effluent that pollutes the water-
bed, leading to the Pollution Con-
trol Board setting stringent norms
to check the menace. As a solutions
provider, Grundfos supplies pumps,
mixers, flow makers, diffusers and
dosing systems for different indus-
tries in Tirupur to help them in their
endeavour to reduce environmental
degradation.
The numerous processes in the
textile industry invariably leave the
effluent at the end of the cycle that
needs to be handled efficiently. As
the effluents are corrosive, acidic
and are chemically different due
to the varying processes involved,
Grundfos has developed and exe-
cuted various projects with a proven
submersible range of pumps. These
pumps also come with unique fea-
tures like energy retrieval consid-
ering the efficiency loss due to in-
creased clearances.
Dyeing and finishing
Dyeing and finishing is an impor-
tant process that consumes the high-
est amount of water. Grundfos has
specially designed pumps that cater
to the large water demands while re-
maining conscious of the need to en-
sure that every drop of water is put
to its best use.
At one of the customer installa-
tions in Tirupur, Grundfos has set
up the Hydro 1000 system to take
care of the fluctuating demand. This
customer has 15 soft flow dyeing
machines. Each machine has a tank
to be filled for 20 cycles. In each
cycle the tank has to be filled up
thrice within the shortest possible
time. The earlier system had a single
pump with the throttle mechanism.
The new Grundfos pumps ensure
ease and trouble-free operation and,
most importantly, availability of
spares and service on time. At an-
other customer location in Banga-
lore, the company has installed the
Hydro-2000 4 X CR 64-3 MF sys-
tem in the main distribution line.
This customer with two soft dyeing
machines plans to add a few more.
In a dyeing unit, the soft flow dye-
ing machine requires smooth flow
of water during fluctuating demand.
Water needs to be filled in the dye-
ing vessel in the shortest possible
time. Grundfos installed a ‘fit & for-
get’ technology to one of the criti-
cal processes in the textile industry
which is highly reliable and energy
saving system to the customer.
At another customer installation
in Tirupur, the company has pro-
vided its digital dosing pump as
replacement to the existing conven-
tional dosing pump. Normally fab-
ric processing includes bleaching
/ dyeing depending on the colour
of the fabric. The customer earlier
had imported bleaching machines
with dosing pumps of solenoid type
which called for mechanical adjust-
ment of stroke length and frequency.
This caused a lot of imprecision.
The Grundfos system installed now
is compact and is focused on preci-
sion and trouble-free operation.
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