RAJASTHAN CO-OPERATIVE DAIRY FEDERATION LIMITED

65
49.2 Piping (SS) (if mentioned in Purchase Order)
The scope includes the installation and inter connection of a set of SS Pipes
and fittings, including cocks, valves, Tees, flanges, unions, bends, reducers,
liners and other necessary fittings SMS/IDF standards, for inter connecting all
the equipment listed. Necessary pipe supports shall be also installed by the
Erector.
49.3 Pipe fittings at connection points
All the required fittings that would be needed in the piping at all the tapping,
termination, connection and intermediate points must be installed by the
Erector.
49.4 The erector shall prepare and submit the piping layout drawing, details of
supports, details of tapping, termination interconnection etc. for approval. All
the piping work shall be carried out strictly in accordance with the approved
drawings/details. The respective milk flow diagram to which the piping layout
correspondence must also be furnished by the erector.
50.0 Insulation (if mentioned in Purchase Order)
50.1 Insulation of chilled water, Glycol pipelines & ammonia suction line :
All the chilled water pipelines shall be insulated as specified with 50 mm/75
mm thick expanded polystyrene (50 mm for pipe 100 mm dia or less size) and
all the Glycol pipeline should be installed with 75 mm thick expanded
polystyrene in suitable pipe sections. The insulation shall be carried out in the
following manner.
1) The surface of the pipe to be insulated should be properly cleaned.
2) Hot bitumen should be applied uniformly @ 1.5 kg. per sq. mm. on the surface
of the pipe.
3) A similar layer of bitumen should be applied on the inner surface and on the
edges of the insulation section.
4) The sections should then be stuck to the coated pipe with joints staggered.
Adjacent sections should be tightly pressed together.
5) All joints should be properly sealed with bitumen.
6) A thick vapour seal of hot bitumen @ 2.5 kg per sq. mm. should be applied
uniformly on the outer surface of the pipe sections and allowed to dry.
(Signed & sealed by the tenderer
in token of acceptance of above)
(RCDF)
Jaipur