Specifications

Enquiry Specification for Wagon Tippler with Side Arm Charger and Associated works
NRO/CON/WT/533
EPI – New Delhi Volume-2B, Rev.0 Page 18 of 63
5.0 HYDRAULICS
(A) Facilities to be provided in the Hydraulic Power Pack Room.
Hydraulic power pack shall be installed in room where adequate provisions are
made to keep ambient air free from dust, moisture and ambient temperature
shall be kept below 35
0
C.
Adequate facility shall be provided for handing of equipments/ components
installed in the power pack room.
Adequate illumination.
Adequate fire alarms, fire protection system and fire fighting facilities.
Antiskid title floor shall be provided in the power pack room.
Design of floor shall be such that spilled oil / leakage oil, if any is collected into
drain pit and from there, arrangement shall be provided for collection and
disposal of leakage oil into oil barrels for reclamation purpose.
Emergency doors and Adequate space to carry out maintenance activities.
Hydraulic circuit of the system on anodized plate(s) shall be provided.
(B) Whatever Servo / Proportional Valves are used in the system, supplier shall
supply Servo Valve flushing facility and test kits for Servo and Proportional
Valves.
(C) For hydraulic systems with conventional valves, the supply voltage to various
controls shall be 24 DC.
(D) BSP’s approved preferred make in vogue shall be followed.
(E) Mineral oil shall be used in hydraulic systems until otherwise agreed upon by
BSP.
(F) All the pipes and fittings used in hydraulic systems of critical production units
shall be stainless steel until otherwise agreed up on by BSP.
(G) Filters shall be provided for continuous removal of contaminants from the
hydraulic fluid, which are likely to cause malfunction of pumps, valves and
actuators and maintain desired cleanliness level of hydraulic fluid. Adequate
filtration shall be provided for each system considering the ingress rate of
contaminants in each applications.
(H) All the pressure line, return line and circulation filters shall be of absolute
filtration design with B (x) ratio greater than or equal to 200. Total delta p across
filters shall not exceed 0.5 bar with filter element in clean condition. (Total p
means pressure drop across clean filter element plus pressure drop filter
housing).
The micron rating shall be as specified in T.S. for individual filters.