Enquiry Specification for Wagon Tippler with Side Arm Charger and ...

Enquiry Specification for Wagon Tippler with Side Arm Charger and Associated works
NRO/CON/WT/533
(O) HYDRAULIC PIPE LINE ERECTION, TESTING, PICKLING, FLUSHING AND
COMMISSIONING
Hydraulic pipe work shall be assembled, pressure tested, pickled, flushed and
commissioned as per piping instructions given by the system designer /
consultant.
Provision of pipe line pickling and flushing facility shall be in the scope of work
(provision of separate tank, pumps filters elements, pickling and flushing fluids
shall be the supplier’s scope).
Supply of minimum 50 nos. of spare filter elements of each type along with the
hydraulic system at the time of Erection, Testing and Commissioning shall be in
the supplier’s scope of supply.
Oil cleanliness shall be checked during commissioning and facilities for checking
and monitoring oil cleanliness shall be in the bidders scope of supply.
Suppliers Scope of Work in hydraulic pipe work shall also include :-
1) Equipment Supplier shall give a comprehensive cleaning and flushing scheme
for hydraulic systems and provide necessary facilities to carry out the
activity.
2) Adopt cleaning and flushing guidelines from ISO 5910.
3) Hydraulic System cleaning and flushing documents shall be part of
acceptance checks in the Quality Assurance Program. Compliance to this shall
be reported in the overall QAP.
4) Develop a plan for how to systematically control hook-up of subsystems into
the main system. Documentation of results as part of the total flushing
procedure. Describe cleaning and flushing connections and looping methods
along with the details of components required to carry out the above.
5) Suppliers to specify sampling points to be used for condition monitoring
during flushing and in service.
6) Connection program after cleaning and flushing is over with built-in check for
prevention of contaminants during connections and assembling.
7) Acceptance norms shall be given by the Equipment Designer / Supplier.
(P) All pipelines shall be of seamless type clamped with polypropylene heavy series
clamps. However, in the hot zone heavy series aluminum clamps shall be used.
(Q) All hydraulic pipe lines shall be painted as per the standard color mode.
(R) Special Conditions for hydraulics:
1) Off line filtration shall be provided and Differential pressure shall
not be less than 0.3.
EPI – New Delhi Volume-2B, Rev.0 Page 20 of 63