RAJASTHAN CO-OPERATIVE DAIRY FEDERATION LIMITED
RAJASTHAN CO-OPERATIVE DAIRY FEDERATION LIMITED RAJASTHAN CO-OPERATIVE DAIRY FEDERATION LIMITED
62 g) Erector shall hydrostatically test all piping systems including valves and specialities & instrument impulse line at suitable pressures. h) All piping shall be internally cleaned and flushed by Erector before and after erection in a manner suited to the service as directed by RCDF. i) For hydrostatic testing and water flushing, erector shall furnish necessary pumps, equipment and instruments, piping etc. Purchase will provide water at available points of supply to which Erector‟s temporary piping will be connected. 46.4 Colour code shall be used to identify pipe material. Erector shall be able to identify on request all random piping prior to any field fabrication. 46.5 All steam piping shall be fabricated in complete accordance with Indian Boiler Code and all approval required shall be obtained by Erector from the inspecting authority. 46.6 Erector shall be responsible for the quality of welding done by his organisation and shall conduct tests to determine the suitability of the welding procedure used by him. 46.7 Erector shall employ welded construction for all black steel piping. All black steel pipes 50 mm. and below shall have socket welded joints unless otherwise specified. 46.8 All piping supports, guides, anchors, rod hangers, spring hangers, rollers with incidental structural sub framing shall be furnished and erected by Erector. 46.9 All piping shall be suspended, guided and anchored with due regard to general requirements and to avoid interference with other pipes, hangers, electrical conduits and their supports, structural members and equipment and to accommodate insulation to conform to purchaser‟s loading limitation. It is the responsibility of the piping Erector to avoid all interferences while locating hangers and supports. 46.10 Anchors and/or guides for pipe lines or for other purpose shall be furnished when specified for holding the pipe line in position or alignment. Hangers shall be designed fabricated and assembled in such a manner that they cannot become disengaged by any movement of the support pipe. 46.11 All piping shall be wire brushed and purged with air blast to remove all dust, mill scale from inner surface. The method of cleaning shall be such that no material is left on the inner or outer surfaces which will affect the serviceability of the pipe. 46.12 Effective precaution such as capping and sealing shall be taken to protect all pipes ends against ingress of dirt and damage during transit or storage. The (Signed & sealed by the tenderer in token of acceptance of above) (RCDF) Jaipur
63 outside of the carbon steel pipe (black) shall receive two coats of red lead paint. 47.0 Testing for : 1. HP Steam 4. Soft and Raw Water 2. LP Steam 5. Air 3. Glycol 6. SS Piping 7. Insulation 8. Electricals 9. Motors 10. Equipments. Should conform to the latest ISI standards. 48.0 Service piping Installation guide lines : 48.1 Chilled water & Glycol piping (if mentioned in purchase order) The scope of erection and installation if mentioned, comprises a set of GI „B‟ class pipes and fittings for chilled water and glycol including supports, isolation and non-return valves etc. for providing chilled water or glycol to all the equipment which would require chilled water or glycol. All the necessary headers for interconnecting all the chilled water and glycol pumps and auxiliary materials like adapters, reducers, flanges, union, valves/cocks/ (of gun-metal/brass for valves upto 100 mm. dia), strainers, gaskets, packing etc. required for the pipe should also be supplied and installed by the erector. The pipeline should be insulated as per the specification detailed. 48.2 Steam & Hot Water and molasses Piping (if mentioned in purchase order) The scope of supply and installation of mentioned, comprises the following set of steam pipes and fittings for providing steam connections from the indicated battery point to all the equipments requiring steam in accordance with IBR, MS Class „C‟ pipes, fittings and auxiliary items. The scope of supply and installation includes the necessary pipes supports, isolation supports, isolation valves, nonreturn valves, safety valves, check valves, pressure reducing valves steam traps, strainers, expanders, bends, gaskets, packing, sight glasses, pressure gauges etc. The manufacturer‟s certificates that the material conforms to IBR duly attested by concerned authority should be furnished for all items as per requirements. The necessary check valves(s) and other fittings required at the sources of tapping at the battery point should also be supplied and installed by the erector. Set of condensate pipes and fittings of MS Class „C‟ to interconnect the condensate return line. The supply is inclusive of necessary pipe supports isolation valves, check valves, bends, gaskets, packing etc. 48.3 Soft well water piping (if mentioned in purchase order) (Signed & sealed by the tenderer in token of acceptance of above) (RCDF) Jaipur
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- Page 81 and 82: TECHNICAL SPECIFICATION FOR SUPPLY,
- Page 83: 83 (Signed & sealed by the tenderer
62<br />
g) Erector shall hydrostatically test all piping systems including valves and<br />
specialities & instrument impulse line at suitable pressures.<br />
h) All piping shall be internally cleaned and flushed by Erector before and<br />
after erection in a manner suited to the service as directed by RCDF.<br />
i) For hydrostatic testing and water flushing, erector shall furnish necessary<br />
pumps, equipment and instruments, piping etc. Purchase will provide water<br />
at available points of supply to which Erector‟s temporary piping will be<br />
connected.<br />
46.4 Colour code shall be used to identify pipe material. Erector shall be able to<br />
identify on request all random piping prior to any field fabrication.<br />
46.5 All steam piping shall be fabricated in complete accordance with Indian Boiler<br />
Code and all approval required shall be obtained by Erector from the inspecting<br />
authority.<br />
46.6 Erector shall be responsible for the quality of welding done by his organisation<br />
and shall conduct tests to determine the suitability of the welding procedure<br />
used by him.<br />
46.7 Erector shall employ welded construction for all black steel piping. All black<br />
steel pipes 50 mm. and below shall have socket welded joints unless otherwise<br />
specified.<br />
46.8 All piping supports, guides, anchors, rod hangers, spring hangers, rollers with<br />
incidental structural sub framing shall be furnished and erected by Erector.<br />
46.9 All piping shall be suspended, guided and anchored with due regard to general<br />
requirements and to avoid interference with other pipes, hangers, electrical<br />
conduits and their supports, structural members and equipment and to<br />
accommodate insulation to conform to purchaser‟s loading limitation. It is the<br />
responsibility of the piping Erector to avoid all interferences while locating<br />
hangers and supports.<br />
46.10 Anchors and/or guides for pipe lines or for other purpose shall be furnished<br />
when specified for holding the pipe line in position or alignment. Hangers shall<br />
be designed fabricated and assembled in such a manner that they cannot<br />
become disengaged by any movement of the support pipe.<br />
46.11 All piping shall be wire brushed and purged with air blast to remove all dust,<br />
mill scale from inner surface. The method of cleaning shall be such that no<br />
material is left on the inner or outer surfaces which will affect the serviceability<br />
of the pipe.<br />
46.12 Effective precaution such as capping and sealing shall be taken to protect all<br />
pipes ends against ingress of dirt and damage during transit or storage. The<br />
(Signed & sealed by the tenderer<br />
in token of acceptance of above)<br />
(RCDF)<br />
Jaipur
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