Based on the year 2003 prices, the indicative savings in cost are:

Sr No.
Size of Pipe NB inches
Cost of MS Pipe Medium as per IS 1239 5.5m long with one coupling
Cost of 2 ½ No of MS Pipe 5.5m long with one coupling
Cost of I PCC Pipe5.5m long with one coupling
RS
RS
RS
1
¼”
106.34
265.85
213.00
2
3/8”
141.81
354.53
225.68
3
½”
184.96
462.40
310.32
4
3/4”
266.35
665.88
398.09
5
1”
369.48
923.70
570.49
6
1¼”
476.29
1190.73
683.33
7
1½”
579.46
1448.65
783.64

Besides there are industrial advantages:

1. Lower Down Time:

As infrequent replacement is required the down time is reduced directly by 2.5 times. This brings a minimum savings of 10 mins. Per heat and at 12/13 heats a day it translates into 120 mins., 2 hrs/day. This is equal to 600 hrs/year.

This saving of 600hrs/year gives the following
1. Savings in Electricity Cost equivalent to 600hrs/year.
2. Savings in Labours Cost 600hrs/year.
3. Higher Yield equivalent to 600hrs/year
4. Lower Inventory Cost.
5. Lesser space for storage of Lancing Pipes.

These savings in indirect costs is far higher than the direct saving in the cost of Lancing Pipes as given in Table No 1.

Therefore it is prudent to use PCC Pipes for Lancing especially in the changed scenario of the open economy where for any industry to survive in competition it is necessary to increase efficiency, quantity and decrease costs.

CONSTRUCTION OF PLAIN CERAMIC COATED PIPES

The Pipes are Low Carbon ER W Pipes as the base Pipe. Refractory coating is applied on both the inner and outer surface of the Pipe. The process is hydraulic extrusion so that the coating is dense and gives a good bonding with the pipes.

Both ends of the pipes are threaded. The threads are normal BSP threads. One socket is provided at one end. The other end has a PVC Shrink Film cap to protect the threads during transit. At one end of the pipe, on the outer surface, a distance of about 200 to 210 mm maximum is left uncoated. This uncoated portion is required for gripping the pipe during coupling. The uncoated portion is painted with aluminium paint. Pipes are made in standard length of 5.5 meters. Pipes can also have a sleeve as against a threaded end and socket.

 

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