Fire Pump Enclosure
1.0 Scope of Supply
1.1. General
Add to this clause:
Unless otherwise agreed, all equipment / items supplied by Vendor as part of these fire water pumps
shall be approved / listed for the service (UL/FM), in accordance with NFPA requirement. Vendor shall
identify which items / equipment (if any) are not approved as part of bid, along with proper justification,
which will be subject to CLIENT approval.
Vendor shall consider first fill of lubricants, for the complete package.
The sub-Vendor manufacturing location shall also be as per CLIENT AVME.
1.2. Diesel Engine Driven Fire Water Pump
Add to point no. 3): The sensing line (loose supply) shall also be supplied by the Vendor. The MOC shall
be agreed prior to order. The final MTO shall be conveyed to the Vendor after finalising the layout.
Add to point no. 28): Lifting beams shall be certified and shall be supplied along with slings, shackles etc
necessary for the lifting and installation of the skid.
Add the following new points:
35) The diesel supply and return piping (SS316 MOC), along with the necessary fittings, insulation gaskets
etc shall also be supplied by the Vendor (loose supply). The final MTO shall be conveyed to the Vendor
after finalising the layout.
36) There shall be provision to test the pump individually.
1.3. Electric Fire Water Pump
Add to point no. 8): The sensing line (loose supply) shall also be supplied by the Vendor. The MOC shall
be agreed prior to order. The final MTO shall be conveyed to the Vendor after finalising the layout.
Add to point no. 14): Lifting beams shall be certified and shall be supplied along with slings, shackles etc.
necessary for the lifting and installation of the skid.
Add the following new point:
24) There shall be provision to test the pump individually.
1.4. Engineering Services
Add to this clause:
22) Vendor shall provide 3D model (stp file) / PDMS file for the supplied pump packages.
23) Vendor shall also supply Controller communication software and configuration software as
applicable. Controller detailed operating procedure, maintenance procedures and
troubleshooting guidelines shall be submitted after order.
2.0 Design Requirements
2.1. Fire Water Main Pump
Add to this clause:
26) The diesel engine cooling water piping which is tapped from the pump discharge (within the pump vendor
scope) and the heat exchanger, shall have the same design pressure as pump MAWP. The cooling
water piping shall be Cu-Ni alloy.
27) The design pressure of pump should be at least equal or higher than downstream fire water piping / fire
water network.
2.2. Diesel Engine
Add to this clause:
Engine exhaust shall be routed to a safe height above the engine (min 5m above engine to be
considered) outside the fire water pump shelter.
2.3. Coupling and Guard
Add to this clause:
Coupling shall be balanced to ISO 1940 G6.3 as a minimum.
2.4. Fuel Day Tank
Add to this clause:
The diesel filling connection line shall be accessible from grade level. The quick coupling for the filling
point shall also be supplied by the Vendor (loose supply).
The tank shall have overfill line (2”).
All tank mounted instruments shall be designed to function safely for a max. black bulb temperature of
82 degC.
Fuel day tank “low fuel transmitter” and level gauge shall be supplied by the Vendor.
Fuel level indication shall be required at two-third tank level or six hours operation (maximum of these
two criteria).
2.5. Piping
Add the following point:
8) All skid edge termination points, including pump suction and discharge, shall be flanged and conform to
ASME B16.5. All flanges shall have be raised face (RF). The same shall be applicable for the loose
supply items as well (RVs, sight glass, pipe fittings etc.).
2.6. Noise Control
Amend this clause:
The noise levels of all equipment shall not exceed the limits as specified in DEP 31.10.00.31-Gen. The
maximum permissible noise level (sound pressure level) from each pump package shall not exceed 85
dBA when measured at a distance of 1m from the equipment. VENDOR shall define the equipment noise
limitation as per applicable standard to guarantee that sound power levels and sound pressure levels of
the equipment are within an acceptable level.
In case the above limit cannot be met for the diesel engine, Vendor may propose noise enclosure, which
shall be subject to Purchaser’s approval. Enclosure (if required) shall be provided with suitably sized
extraction fan (for ventilation). The power supply for the same shall be taken from the LCP. Also, fire and
gas detector shall be provided in diesel engine enclosure, for alarm purpose.
2.7. Electrical
Add to this clause:
The 6.6 kV fire water pump controller shall be suitable for installation at site (under sunshade).
2.8. Control & Automation
Add to this clause:
8) For Diesel engine driven fire water pump, the LCP shall preferably be mounted with anti-vibration mounts
on the same skid as the pump and engine.
9) Sunshades shall be provided for all field mounted electronic instruments and enclosures housing
electronic components. The same shall be provided for other instruments if required to meet the ambient
temperature conditions. Sunshade material shall be GRP or SS and all the mounting accessories shall
be of SS316 material.
10) The control voltage for all instruments shall be 24V DC. Logic to be implemented by using relays.
11) Single point 240V AC supply will be provided. Pump Vendor to make the necessary arrangement to
derive 24V DC.
12) Interface between the instrument section and electrical section will be interposing relays to ensure that
240V AC cannot be connected directly to the logic.
13) All annunciator alarm shall stay in the alarm state until they are reset by manual action.
14) All instrument components shall be provided with screw terminals.
15) Switches are not acceptable. Supplied field instruments shall be min. Zone 1, Gr IIB, T4 and ingress
protection min. IP66.
16) Input / output signals from all instruments will interface at the instrumentation section of the local start /
stop. Local control panel to be located on the pump skid.
17) Interconnection cable between local control panel and process automation system located in control
room will be by Purchaser.
3. Materials
Add to this clause:
a. Material of construction shall be as per pump material group 15 of DEP 31.29.02.30, for the main
pumps (including the loose supplied RVs, cooling water piping and sight glass).
b. The MOC of diesel tank and interconnecting piping shall be SS 316L.
c. Piping (as applicable) shall utilize flanges and butt welded fittings. DEP 31.38.01.10-Gen, DEP
31.38.01.11-Gen and DEP 31.38.01.15-Gen shall be used as reference for piping.
d. Asbestos shall not be used in material supplied in the pump packages.
e. Vendor shall also confirm / endorse the suitability of the selected material of construction, based
on their experience (refer Appendix-G for the water analysis report).
f. The selected material for the pump shall be suitable for both normal and sitting idle situation.
g. All piping materials shall be in accordance with DEP 31.38.01.15-Gen.
4. Inspection and Testing
4.1. General
Add the following points:
7) The Vendor shall be responsible for coordinating the inspection and testing of sub-vendor supplied
equipment, and for ensuring that the Purchaser’s representatives are given the necessary access for
inspection, and adequate warning of inspection and witness tests.
8) The Vendor (and all sub vendors) shall give the Purchaser, as required, without charge, all reasonable
facilities and access for the purpose of inspecting the equipment to ensure that it is manufactured in
accordance with the requisition, drawings and technical specification and QA/QC procedures and
practices.
9) Except as approved by the Purchaser, all equipment shall be presented for inspection in an unpainted
condition.
10) The TPI shall be appointed and paid by CLIENT, for the witness & Hold points identified in the approved
ITP.
11) The pumps and ancillaries shall not be tested or leave the factory before all discovered defects have
been rectified.
12) Vendor shall adhere to quality intervention levels mentioned in SP-2269, appendix-C.1 as per criticality
rating 2.
13) Vendor shall submit inspection & test plan (in line with SP-1171) for company review & approval.
14) Pre-inspection meeting requirement will be identified during ITP approval stage and vendor shall
organise and support the same.
4.2. Factory Acceptance Tests
Add to this clause:
All test shall be witnessed by the Purchaser or Purchaser approved TPI.
NPSHR test (for one pump) shall be done if the difference between NPSHA and NPSHR is less than 2
meters.
During the 4 hr complete unit mechanical run test and performance test, all original components
supplied under the Purchase Order shall be used, with slave / test berth monitoring equipment hooked
up to the contract temperature, pressure transmitters.
The pumps and ancillaries shall not leave the factory before all factory acceptance tests (FAT) have been
satisfied and deficiencies have been corrected using Purchaser’s approved format.
