55117-EnI-SF-SA-PA-301-01-Supply Specification for Diesel Engine Driven Firewater Pump PA 1100 A

8/3/2019 55117-EnI-SF-SA-PA-301-01-Supply Specification for Diesel Engine Driven Firewater Pump PA 1100 A

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Oil & Gas EngineeringServices

DJEBEL GROUZ PROJECTSUPPLY SPECIFICATION FOR DIESEL ENGINE DRIVEN FIREWATER

PUMP PA1100ACONTRACTOR Document N:

55117-ENI-SF-SA-PA-301

COMPANY Document N: Rev: 01

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DJEBEL GROUZ PROJEC

SUPPLY SPECIFICATION FOR DIESEL ENGINEDRIVEN FIREWATER PUMP

PA1100A

24/10/2011 01 Issued For Review S.G. S.H. M.E.

23/10/2008 00 Issued For Comments A.S. K.B.M. M.E.

Date Rev. Description of Revision Prepared by Verified by Approved byCompanyApproval

ALPHA ENGINEERING Intl.Immeuble Jeaiem, A8, Avenue Yasser Arafat Sahloul 1, 4000 Sousse - Tunisie

Code TVA : 950448R/A/M/000. R.C : B279902006Tl : +216 73 821 245 / 246 / 247 Fax : +216 73 821 249

This document is the property of Alpha Engineering International who will safeguard its rights according to the civil and penal provisions of the Law.


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TABLE OF CONTENTS

1. GENERAL ................................................................................................................................................4

2. DEFINITIONS & ABBREVIATIONS ........................................................................................................4

3. DESCRIPTION OF THE SUPPLY ...........................................................................................................5

4. REFERENCED STANDARDS AND DOCUMENTS ................................................................................5

4.1. DOCUMENTS.......................................................................................................................................... 54.2. ENI SPECIFICATIONS.............................................................................................................................. 64.3. INTERNATIONAL STANDARDS...................................................................................................................... 6

5. ORDER OF PRIORITY OF THE DOCUMENTS ......................................................................................7

6. AMBIENT CONDITIONS .........................................................................................................................7

7. SCOPE OF SUPPLY ...............................................................................................................................8

8. SCOPE OF SERVICES ............................................................................................................................8

9. TECHNICAL REQUIREMENTS ...............................................................................................................8

9.1. GENERAL.............................................................................................................................................. 8

9.2. MECHANICAL REQUIREMENTS..................................................................................................................... 89.2.1. Fire Water Pump .......................................................................................................................89.2.2. Bearing and Bearing Housing ....................................................................................................99.2.3. Mechanical Seal and Packing ...................................................................................................99.2.4. Coupling .................................................................................................................................109.2.5. Driver Diesel Engine .............................................................................................................109.2.6. Diesel Fuel System .................................................................................................................119.2.7. Engine Lube Oil System ..........................................................................................................119.2.8. Engine Cooling System ..........................................................................................................119.2.9. Engine Exhaust System ..........................................................................................................119.2.10. Vibration and Critical Speeds ................................................................................................129.2.11. Starting System ....................................................................................................................139.2.12. Instrumentation ......................................................................................................................14

9.2.13. Control Scheme and Control Panels .....................................................................................149.2.14. Electrical................................................................................................................................ 179.2.15. Structural Skid .......................................................................................................................17

10. INSPECTION AND TESTING ..............................................................................................................17

11. SURFACE PREPARATION AND PAINTING ......................................................................................18

12. SPARE PARTS ....................................................................................................................................18

13. PRESERVATION .................................................................................................................................19

14. PREPARATION FOR SHIPMENT, TRANSPORT AND STORAGE ....................................................19

15. DELIVERY ...........................................................................................................................................19





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16. GUARANTEE .......................................................................................................................................20

17. DOCUMENTS TO BE DELIVERED .....................................................................................................20





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1. GENERAL

This specification covers the minimum requirements for the design, manufacture, fabrication,

testing, inspection, packaging and supply of a Diesel Engine Driven Fire Water Pumps,

complete with components and accessories, to be installed in Djebel Grouz Field located at the

South East of Tunisia.

The Vendor and his sub-vendors shall comply with all requirements of this Specification, Data

Sheets, and the latest editions of all specifications, codes, and standards referenced in this

scope of work.

The packages shall be designed and guaranteed for continuous service in the environmental

conditions specified, and the specified process parameters.

2. DEFINITIONS & ABBREVIATIONS

For the purposes of clarification in the present specification, the following definitions apply:

Vendor: The party which supplies Diesel Engine Driven Fire Water Pump to perform the

duties specified by E.N.I.

Company: E.N.I. Tunisia B.V.

Site: Djebel Grouz Field at the South East of Tunisia.

Manufacturer: The party which manufactures or supplies equipment and pipes toperform the duties specified by the Vendor.

Shall: A term which indicates that a provision is a requirement.

Should: A term which indicates that a provision is recommended as good practice but is

not a requirement.

May: A term which indicates that a provision is neither required nor prohibited.





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NEC: National Electrical Code.

SAE: Society of American Engineers.

ASME:American Society of Mechanical Engineers.

NFPA: National Fire Protection Association.

IEC: International Electrotechnical Commission.

DPDT: Double Pole, Double Throw.

3. DESCRIPTION OF THE SUPPLY

This specification defines the requirements for the supply of Diesel Engine Driven Fire Water

Pump.

The Vendor shall therefore be responsible for the design, manufacture and correct operation of

the complete unit.

Design and supply of the Unit shall be complete (Mechanical, Electrical, Instrument, etc.) in

order to ensure proper Operation, Maintenance, Safety and Control within the Unit Battery

Limits.

4. REFERENCED STANDARDS AND DOCUMENTS

The following documents, codes and standards are referenced in this specification:

4.1.Documents

55117-ENI-SF-DS-DA-004: Diesel Engine Technical Data Sheet.

55117-ENI-SF-DS-PA-001: Diesel Firewater Pump PA 1100 A Technical Data Sheet.



http://www.asme.org/http://www.asme.org/


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55117-ENI-SF-DS-PA-101: Diesel Firewater Pump PA 1100 A Inspection Data Sheet

(IDS).

55117-ENI-SF-DS-PA-201: Diesel Firewater Pump PA 1100 A Required Documents Data

Sheet (RDDS).

4.2.ENI Specifications

20000. VAR. PAI. FUN Rev.2 : Protective coating and hot dip galvanising functional

specification

15801. PIP. MEC. SDS Rev.1: Company specifications manual valves.

07423. PKG. GEN. SPC Rev.0: Inspection and tests for package supplies.

03023. MAC. MEC.SPC Rev.2: General Specification Diesel Engines

4.3.International Standards

NFPA 20: Standard for the installation of stationary pumps for fire protection, 2003

Edition.

IEC 62091: Low Voltage Switchgear-Controllers for drivers of stationary fire pump.

IEC 60364: Electrical Installation of buildings.

IEC 60529: Degree of Protection provided by enclosures.

IEC 60947: Low voltage Switchgear and control gear.

IEC 60439: Low Voltage Switchgear.





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5. ORDER OF PRIORITY OF THE DOCUMENTS

In the event of a conflict between this Specification, data sheets and the applicable codes and

standards, the Vendor shall bring the matter to the Companys attention for positive clarification,

resolution and review in writing before any work is started. In the absence of any guidance or

agreement to the contrary, the most stringent requirements shall apply.

Should any conflict occur as a result of applying data sheets and specifications, the order of

precedence shall be as follows:

Purchase Order.

This Specification including data sheet.

E.N.I. General Specifications.

Codes and Standards.

Other International Codes and Standards.

6. AMBIENT CONDITIONS

The Supplier shall consider the following design site ambient conditions for the package design:

Air Temperature: Min: -5 C Max: 50C

Humidity: Min: 40 %, Max: 90 %

Elevation: 274 m above the sea level.

Wind velocity Speed: 180 km/h.

Rainfall (average): 25 mm/year.





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7. SCOPE OF SUPPLY

The Vendor shall be responsible for the provision of Diesel Engine Driven Fire Water Pump

completely assembled which shall be painted and tested at shop.

The Vendor shall provide all technical documentation relative to the Diesel Engine Driven Fire

Water Pump.

8. SCOPE OF SERVICES

Services shall include but not limited to:

Inspection and testing.

Surface preparation and painting.

Preservation for storage.

Preparation for shipment.

Delivery Ex-works.

9. TECHNICAL REQUIREMENTS

9.1. GENERAL

The Vendor shall ensure that the Diesel Engine Driven Fire Water Pump is designed for

maximum reliability, minimum maintenance and it shall be designed and constructed for a

minimum service life of 20 years.

9.2. MECHANICAL REQUIREMENTS

9.2.1. Fire Water Pump

The Firewater Pump shall be a Centrifugal Pump compliant to NFPA 20.





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Pump shall have the possibility for local / manual operation as well as remote / Automatic

operation.

Pumps design data is shown on the attached Data Sheet 55117-ENI-SF-DS-PA-004. In the

event of conflict between this specification and Data Sheet, the Data Sheet shall govern.

Firewater pumps speed shall not exceed 1800 RPM.

Firewater pumps shall be horizontal centrifugal pumps with radial displacement as per NFPA 20.

The pumps shall have suction strainers in accordance with NFPA-20.

Bearings housing shall be arranged so that bearings can be replaced without disturbing pump

drivers or mounting.

Mounting skid shall be separate and located sufficiently below from the main body flange in

order to facilitate bolting on the body flange.

9.2.2. Bearing and Bearing Housing

Bearings shall be lubricated by constant-level oilers.

9.2.3. Mechanical Seal and Packing

Detail of mechanical seals offered by the Vendor shall require Company approval prior to

installation.

The Vendor shall recommend and describe number, size, and material of packing rings, lantern

rings, etc.

Stationary mechanical seal faces shall be O ring mounted with a radial pin to prevent face

rotation.





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9.2.4. Coupling

The coupling between the engine and the gear shall be short coupled universal shaft with

flanges for driver and driven shaft. It shall be sized to handle full engine power with a minimum

service factor of 1.75.

Coupling shall be designed to prevent engine vibration, caused by misalignment.

Coupling shall allow the engine or the pump to be removed without disturbing the other.

Coupling shall be dynamically balanced and rated for a minimum bearing life of 5000 hours.

A removable non-sparking guard shall be provided around the coupling.

All bolting for shaft guard shall be type 316 stainless steel with a minimum spacing of 150 mm

and a minimum diameter of 10 mm.

9.2.5. Driver Diesel Engine

The diesel engine driver shall conform to NFPA-20 requirements and shall be approved for fire

pump use.

The intermittent engine shaft horsepower shall be at least 1.2 times the maximum horsepower

required to drive the fire pump at 150% of its design capacity at the rated RPM, installed

elevation and engine inlet air temperature. The required horsepower shall include the pump and

all the engine auxiliaries. Engine power ratings shall comply with power test codes of S.A.E. and

A.S.M.E.

A hydro-mechanical governor with a positive locking control shall regulate engine speed within a

range of 10% between shut-off and maximum load conditions of the pump. There shall be no

manual throttle.





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9.2.6. Diesel Fuel System

The fuel system shall include a fuel filter with readily replaceable filter media. The fuel system

shall be leak-free throughout all conditions of engine operation. The inlet to the fuel system shall

be readily connectable to a fuel supply line employing connections designed in accordance with

a recognized standard of the nation to which the engine is to be delivered.

9.2.7. Engine Lube Oil System

A full flow engine lubrication pressure system with pump, strainer, piping, heat exchanger and

full flow oil filter equipped with a bypass valve and pressure gauge shall be provided.

Filters shall be furnished with accessible and easily replaceable cellulose type filter elements.

All piping downstream of lube oil filters shall be stainless steel.

Flexible connections shall be wire braid reinforced type 316 stainless steel bellows type.

9.2.8. Engine Cooling System

The engine cooling system shall be included as part of the engine assembly and shall be a

radiator type that includes a circulating pump driven by the engine, a radiator, an engine jacket

temperature regulating device, and an engine-driven fan for providing positive movement of air

through the radiator.

9.2.9. Engine Exhaust System

Exhaust system in accordance with NFPA 20, shall be complete with all piping, fittings, brackets

and supports. A properly sized rain cap shall be provided.

Exhaust ducting shall be carbon steel with expansion bellows of 316 stainless steel, seamless or

welded corrugated design, mounted between engine outlet and exhaust pipe.

Silencers shall be furnished with spark arresters and support straps with vibration isolators.





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Engine exhaust manifold, and turbo charger if furnished, shall be water cooled.

All other surfaces of exhaust system, silencer, flanges and expansion bellows shall be insulated.

9.2.10. Vibration and Critical Speeds

The Vendor shall assume full responsibility for performance of necessary torsional studies and

elimination of any lateral or torsional vibrations that may adversely affect operation of completeunit within specified operating range.

Torsional natural frequencies of engine and driven equipment shall not be closer than 10% to

any specified running speed.

The Vendor shall submit proof that required torsional vibration studies have been satisfactorily

performed. Requirement shall be per Vendor Document Requirements.





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9.2.11. Starting System

All systems shall be furnished in accordance with NFPA 20 except where modified herein.

Starting system shall be furnished with logic that prevents operation of starting motor when

engine is running.

Pump shall be capable of starting by either:

Remotely initiated signal (electric) from Master Control Panel. Loss of signal shall start

pump.

Manually initiated signal (local).

Pump shall be stopped by local manual action only, except when it is in its "Test" mode.

The primary starting system shall be suitable for operation with compressed air, in EEx d IIB T1

hazardous area.

The secondary (backup) start system shall be nitrogen gas stored in high pressure cylinders. It

shall provide sufficient volume for three (3) start attempts. The Vendor shall also provide the

high pressure regulator in the nitrogen outlet manifold.

The volume of the air/nitrogen tank shall be sized for 180 seconds of continuous cranking start

attempts without recharging. Dry nitrogen will be fed to the volume bottle at 10.34 barg from high

pressure nitrogen cylinders. The volume bottle shall be an ASME coded pressure vessel

designed for 13.8 barg, and shall be protected by a relief valve, sized for fail-open capacity of

the nitrogen regulator.

The primary (air) and secondary (nitrogen) systems shall be with manifold such that either air or

nitrogen will be available to the starter valve. A low pressure switch on the start air line shall

initiate the flow of nitrogen to the starter.

All valves in the air start and nitrogen start systems shall be carbon steel.





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9.2.12. Instrumentation

Vendor shall supply all controls and instrumentation, associated with pumps and drivers, to

reach Company and NFPA-20 design philosophy.

The low pressure switches monitoring the firewater header pressure shall be supplied and

mounted on pump control panels by vendor.

Level gauges on the nitrogen gas bottle shall be a reflex type.

Vendor shall install all required pneumatic tubing on the skid. All tubing external to the panel

shall be 3/8" O.D. 316 stainless steel, 0.035" wall minimum, supported in tubing trays. (Tubing

strapped to pipe is not acceptable.)

Tubing installations shall be neat, plumb, properly supported and exhibit professional

workmanship.

A Pressure Indicator shall be installed at pump discharge line.

9.2.13. Control Scheme and Control Panels

Panel and stand shall be mounted on skid.

Pneumatic and wiring connection of the control panel shall be required to external piping and

wiring circuits furnished by others. All necessary valves, regulators and gauges shall be supplied

by Vendor.

Pressure and temperature gauges shall be liquid filled, with stainless steel cases. Tubing shall

be type 316 stainless steel.

Panel enclosure shall be constructed of 316 stainless steel with a brushed finish, free of tool and

clamp marks. All internal braces, enclosure hardware and instruments shall be 316 stainless

steel. Panel shall have removable, full opening doors on rear side with heavy duty 316 stainless

steel hinges and closures.





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Panel nameplates shall be stainless steel, engraved type. All bulkhead connectors shall have

nameplates both inside and outside the panel enclosure. Instruments shall be provided with

permanently attached nameplates. Nameplates on the panel shall be mounted with 316

stainless steel screws.

Instrument air pressure to the panel shall be 7-10 bar. Regulators shall be provided to reducethe pressure to the required pressure needed by the logic circuits. While running, loss of

instrument air to the panel shall not cause shutdown of the pump.

Panel shall house pump stop/start controls and test/auto selector switch.

While in auto mode, all shutdown devices shall be disarmed. All alarm and indication functions

shall operate normally.

Panel shall contain all procedures necessary to start pump if not already running. procedures

shall control starting sequence in accordance with NFPA guidelines.

Except when the pump is running in "Test" mode, low fuel level, low oil pressure, engine over

speed and high jacket water temperature shall run an audible alarm and a red flashing alarm. In

"Test" mode, these malfunctions shall shut down the pump.

The pump status (run, fail) shall be transmitted to a remote control panel through an electrical

signal. Pump running signal shall be generated from an oil pressure switch set at rated engine

oil pressure to ensure running signal will not be displayed unless engine has started and

achieved operational running speed.

The following instruments shall be furnished as a minimum on control panel:

Tachometer (range 0-125% rated speed), with adjustable over speed trip setting, over

speed alarm, digital speed indicator and test function.

Engine oil pressure gauge.

Engine cooling water temperature gauge.





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The following alarms and shutdowns shall be provided. Alarm signals shall be displayed on

control panel by means of first-out indicators. All shutdowns shall be bypassed in auto mode.

Shutdown

Alarm (Test mode)

Oil pressure - low X X

Coolant temperature - high X X Over speed X X

Engine fail to start X

Fuel level - low X X

Vendor shall furnish following independently mounted instruments and controls:

Coolant level indicator.

Fuel tank level gauge.

Crank case dipstick.

Jacket water inlet and outlet temperature indicator.

Coolant flow indicator.

Coolant inlet and outlet pressure gauge.

Vendor shall submit the wiring and connection diagram of the control panel logic, bill of

materials, panel front layout, and name tag list for Company approval prior to fabrication of the

panel.





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9.2.14. Electrical

All skid mounted electrical control and instrumentation systems shall be installed in accordance

with NFPA-70, NEC or IEC

Vendor shall do the wiring from devices on the skid to the unit control panel. All controls and

signals which go off-skid shall be wired to a separate junction box located on the edge of the

skid. Provide six (6) spare terminals.

Electric pressure switches and solenoid valves shall be explosion proof material. Pressure

switches shall be DPDT Electrical form. All electric installations shall conform to NEC or IEC

recommended practices for EEx d IIB T1 hazardous areas.

9.2.15. Structural Skid

Vendor shall be responsible for supplying the completed and assembled package on structural

steel skids. Vendor shall be fully responsible for the detailed design. Each skid structure shall be

designed for a single point lift. Lifting eyes shall be provided on skid.

All equipment shall be mounted on structural members of the skid. Packaging shall be suitable

for withstanding transportation loads during ocean and truck transportation.

All load bearing members shall be connected by full penetration welds. All defected surfaces

shall be continuously seal welded.

10.INSPECTION AND TESTING

Inspection and testing of the pumps and all associated auxiliary items shall be carried out in

accordance with the relevant codes, standards, approved procedures and Inspection Plan.

The Vendor shall provide an Inspection & Testing Plan for purchased review and comments.





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The equipment shall be subject to inspection and witnessing of tests by the Company, as and

when required.

The Vendor shall provide free access to his work for the authorized representative of the

Company. All necessary certification of materials, shop test data, etc, shall be made available to

verify that the requirements of the Company are being met.

Acceptances of shop Tests shall not relieve the vendor to meet field tests under specified

operating condition, nor does the inspection relieve the Vendor of his responsibility.

11.SURFACE PREPARATION AND PAINTING

The preparation and painting procedures must comply with the attached ENI specification:

20000. VAR. PAI. FUN.

As option, the Vendor may include in the offer his standard painting procedure for approval.

The Vendor shall paint the equipment and materials within his scope of supply, which shall be

done at Vendors facilities to the maximum extent possible. Paint materials to be used shall be in

accordance to the paint specification attached.

12.SPARE PARTS

The Vendor shall provide all spare parts required for construction, pre-commissioning,

commissioning and Start-up.

The vendor shall provide quotation for Spare Parts of the various components of the supply

according to his experience as follow:

Capital spare

Two Years of Operation.

Each part shall be separately quoted.





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Spare parts definition shall include sectional drawings and/or exploded view to identify the listed

parts on the relevant Spare Parts Form.

13.PRESERVATION

The extent of preservation to be applied shall be based on the assumption that a minimum of

06 months will pass before the equipment is ready for initial start-up. The Vendor shall specify

his recommendation for the preservation for both indoor and outdoor storage.

Provided manuals shall list all the conservation applied and all measures required for up-

keeping the Diesel Engine Driven Fire Water Pump until installation time.

14.PREPARATION FOR SHIPMENT, TRANSPORT AND STORAGE

The Diesel Engine Driven Fire Water Pump, shall be crated, properly protected and marked for

export and shipment.

It shall be adequately preserved and sealed to withstand any adverse condition evolving from

the mode of transportation (trucks in desert and bad condition road; dusty environment).

15.DELIVERY

The Diesel Engine Driven Fire Water Pump shall be delivered Ex-works.

Its Vendors responsibility to provide all necessary paper work and documentation for

transportation and customs clearing (if any).





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16.GUARANTEE

The Diesel Engine Driven Fire Water Pump, component parts shall be guaranteed by the

Vendor against defective materials, design and workmanship for a period of 12 months after

start-up or 18 months after delivery.

If any mal-performance or defect occurs during the guarantee period, the Vendor shall make all

necessary alterations, repair and replacements free of charge.

17.DOCUMENTS TO BE DELIVERED

The following documents shall be provided prior to the shipment of the Diesel Engine Driven

Fire Water Pump:

Material certificate

Certificate of Conformity

Certificate of shop visual inspection by third party Inspector

Certificate of shop Hydro test by third party Inspector

Installation, operating and maintenance instructions.


