gis 34-302 -11 january,2010.pdf

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GIS 34-302

Special Purpose Steam Turbines(ISO 10437 or API 612)

Group Instruction for Supply

Document No. GIS 34-302

Applicability Group

Date REVISION FOR REVIEW11 January 2010

BP GROUPENGINEERING TECHNICAL PRACTICES

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REVISION FOR REVIEW 11 January 2010 GIS 34-302Special Purpose Steam Turbines (ISO 10437 or API 612)

Page 2 of 21

Foreword

This is the third issue of Engineering Technical Practice (ETP) Group Instruction for Supply(GIS) GIS 34-302.

Copyright © 2010 BP International Ltd. All rights reserved.

This document and any data or information generated from its use are classified, as aminimum, BP Internal. Distribution is intended for BP authorized recipients only. The

information contained in this document is subject to the terms and conditions of the

agreement or contract under which this document was supplied to the recipient'sorganization. None of the information contained in this document shall be disclosed

outside the recipient's own organization, unless the terms of such agreement or contract

expressly allow, or unless disclosure is required by law.

In the event of a conflict between this document and a relevant law or regulation, the

relevant law or regulation shall be followed. If the document creates a higher obligation, it

shall be followed as long as this also achieves full compliance with the law or regulation.

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Page 3 of 21

Table of Contents

Page

Foreword ........................................................................................................................................ 2

Introduction ..................................................................................................................................... 5

1 Scope .................................................................................................................................... 6

2 Normative references ............................................................................................................. 6

5 Statutory requirements ........................................................................................................... 6

6 Basic design .......................................................................................................................... 7

6.1 General ....................................................................................................................... 7

6.2 Nameplate and rotation arrows ................................................................................... 7

7 Casings .................................................................................................................................. 7

7.1 Pressure casings ........................................................................................................ 7

7.3 Internal stationary components ................................................................................... 8

7.4 External forces and moments...................................................................................... 8

8 Rotating elements .................................................................................................................. 8

8.1 General ....................................................................................................................... 8

8.2 Shafts ......................................................................................................................... 8

8.3 Blading ........................................................................................................................ 9

9 Rotor dynamics ...................................................................................................................... 9

9.1 General ....................................................................................................................... 9

9.2 Lateral analysis ........................................................................................................... 9

9.5 Torsional analysis ..................................................................................................... 10

9.6 Vibration and balancing............................................................................................. 10

10 Bearings, bearing housings, and seals................................................................................. 10

10.1 Radial bearings ......................................................................................................... 10

10.2 Thrust bearings and collars ....................................................................................... 11

10.3 Bearing housing ........................................................................................................ 11

10.4 Grounding ................................................................................................................. 11

10.5 Shaft seals ................................................................................................................ 11 11 Materials .............................................................................................................................. 12

11.1 General ..................................................................................................................... 12

11.3 Welding ..................................................................................................................... 12

12 Controls and instrumentation ............................................................................................... 12

12.1 General ..................................................................................................................... 12

12.3 Overspeed shutdown system .................................................................................... 12

12.5 Instrument and control panels ................................................................................... 13

12.6 Indicating instrumentation ......................................................................................... 13

14 Piping and appurtenances ................................................................................................... 13 14.1 General ..................................................................................................................... 13

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15 Accessories ......................................................................................................................... 14

15.1 Couplings and guards ............................................................................................... 14

15.2 Gear units ................................................................................................................. 14

15.3 Mounting plates ........................................................................................................ 14

15.5 Lubrication and control-oil system ............................................................................. 15

15.7 Insulation and jacketing............................................................................................. 15

15.8 Turning gear ............................................................................................................. 15

16 Inspection, testing and preparation for shipment .................................................................. 16

16.1 General ..................................................................................................................... 16

16.2 Inspection ................................................................................................................. 16

16.3 Testing ...................................................................................................................... 16

16.4 Preparation for shipment ........................................................................................... 17

17 Vendor's information ............................................................................................................ 18

17.2 Proposals .................................................................................................................. 18

17.3 Contract data ............................................................................................................ 19

Bibliography .................................................................................................................................. 21

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Page 5 of 21

Introduction

a. Requirements for special purpose applications of steam turbines in the petroleum, petrochemical, and natural gas industries are based on ISO 10437 (2003). ISO 10437 isequivalent to API Std 612, sixth edition, November 2005.

b. Requirements of this GIS are modifications to ISO 10437.

c. Modifications to ISO 10437 are defined as Add, Delete, or Modify to Read.

d. Paragraph numbers in this GIS correspond to ISO 10437.

e. Paragraphs of ISO 10437 that are not revised remain applicable.

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Page 6 of 21

1 Scope

Add

This GIS, together with the documents referenced herein, constitutes minimum technical

requirements for this equipment.

2 Normative references

Add

BP GP 12-45 Electrical for Packaged Equipment.

BP GIS 15-011 Noise Control.

BP GP 30-65 Control Panels.

BP GP 30-70 Control and Instrumentation in Vendor Packaged Equipment.

BP GP 32-10 Quality Management for Manufacturing - Overall Strategy.

BP GP 32-11 Quality Management for Manufacturing - Implementation of QA/QCRequirements into the PSCM Process.

BP GP 32-12 Quality Management for Manufacturing - Rotating Equipment.

BP GIS 34-501 Special Purpose Gear Units (API 613).

BP GIS 34-503 Special Purpose Couplings (API 671).

BP GIS 34-701 Lubrication, Shaft Sealing, and Control Oil Systems and Auxiliaries(ISO 10438).

BP GIS 34-705 Machinery Protection Systems (API 670).

BP GIS 36-103 Positive Materials Identification (PMI) for Pressure Vessels, Piping, andOther Components.

BP GP 42-10 Piping Systems (ASME B31.3).API Publ 684 Tutorial on the API Standard Paragraphs Covering Rotor Dynamics and

Balance (An Introduction to Lateral Critical and Train Torsional Analysis

and Rotor Balancing).

5 Statutory requirements

Add

a. In case of conflict, order of precedence shall be:

1. Local codes and standards.

2. Purchase order/requisition/contract.

3. Project data sheet and drawings.

4. This GIS.

5. Referenced BP documents, codes, and industry standards.

b. In the event of a conflict, manufacturer shall immediately notify BP for written resolution.

c. Deviation from the requirements specified shall not be assumed to be acceptable by pump

manufacturer.

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6 Basic design

6.1 General

6.1.1 Add

Turbines shall be sufficiently robust to withstand, without damage, results of occasionalabnormal conditions of limited duration, such as surging of compressors or electrical faults ongenerators.

6.1.2 Modify to Read

a. Turbine vendor

1. For electric power generation applications, turbine vendor shall be responsible forcoordination of design and for satisfactory functioning of complete unit (i.e., turbine,generator, transmission, and ancillaries).

2. Turbine vendor that supplies equipment which it has not manufactured shall, in allrespects, be responsible for ensuring that designs of such items are compatible with

each other and with turbine vendor equipment.

3. Satisfactory functioning of complete unit shall form part of turbine vendor contractualguarantee.

b. For other applications, driven equipment vendor should normally be responsible for overallcoordination. Turbine vendor shall cooperate with driven equipment vendor to facilitate

development of complete unit.

Add to h)

1. Uncoupled or unloaded operation shall undergo a safety review of the operating procedure (especially of overspeed protection).

2. The safety review shall be completed before the operating procedure is performed.

This applies to factory testing and site installations.


Sound and noise shall comply with GIS 15-011.

6.2 Nameplate and rotation arrows

6.2.5 Add

a. All rotor responses, regardless of amplification factor (AF), shall also be stamped on thenameplate. If necessary, a separate critical speed nameplate shall be furnished.

b. Equipment weights shall be stamped on equipment tag. This weight shall include turbine,

complete with cover, rotor, and diaphragms.

7 Casings

7.1 Pressure casings

7.1.1 Add

a. Casing shall be suitable for pressures and temperatures encountered if running uncoupled

with design inlet steam conditions.

b. Actual maximum allowable pressure and temperature for mechanical strength purposesshall be stated on the data sheet.

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Page 8 of 21

7.1.3 Add

7.1.6 Add

Proposals shall include details of case bolting arrangement showing the method of assembly anddisassembly.

7.1.12 Adda. Casing drains shall be individually valved and piped to edge of turbine base.

b. Valves shall be accessible from operating floor.

7.1.18 Add

Horizontal jacking screws shall be required.

Add

7.1.19 Wobble plate type supports

a. Wobble plate type supports for heat expansion in the lateral direction at the turbine inlet or

exhaust end shall be acceptable only with written BP approval.

b. Calculated expansions expected in the lateral and/or axial direction shall be provided byVendor with the quotation.

c. Vendor shall explain how the design prevents torsional roll, off centreline growth, etc.

7.3 Internal stationary components

7.3.2 Add

Diaphragms for multistage steam turbines shall be individually secured to prevent axialmovement.

Add

7.3.5 Latter stages of condensing turbines shall have drip rims to protect the casing from erosion.

7.4 External forces and moments

Add

a. Allowable forces and moments for each casing connection shall be tabulated by turbine

vendor.

b. Vendor shall demonstrate that tabulated forces and moments comply with equations for the

resultant and combined resultant forces and moments described in NEMA SM23.

8 Rotating elements

8.2 Shafts

8.2.2 Modify Last Sentence to Read

These areas shall be demagnetised or otherwise treated such that combined total electrical andmechanical runout does not exceed the following:

a. 6 μm (0,25 mil) for areas observed by radial vibration probes.

b. 13 μm (0,5 mil) for areas observed by axial position probes.

8.2.4 Modify Second Sentence to Read

Shaft ends for couplings shall comply with GIS 34-503.

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Page 9 of 21

Add8.2.6 a. Turbine vendor shall, together with driven equipment vendor, establish maximum transient

torques that will occur in shafting system during startup, running, and fault conditions.

b. All components, including coupling and fit of coupling hub on shaft, shall be suitable for atleast 115% of the maximum transient torques in a.

8.3 Blading

8.3.1 Modify First Sentence to Read

Each blade row shall be verified by Vendor using Campbell diagrams or their equivalent(corrected to actual operating temperatures and speeds), for both nozzle passing frequency and by twice nozzle passing frequency, that excitation does not occur within the range of 90%minimum speed to 110% maximum continuous speed for all multiples of up to 15 times runningspeed.

Add8.3.3 a. Blading that could be in a transition zone between dry and wet regions, under any

operating conditions, shall be conservatively designed with low working stresses.

b. It shall be assumed that chlorides could be present, and fatigue strength of bladingmaterials shall be selected accordingly (see 11.1.6).

8.3.4 a. Blading shall have been proven in service.

b. Satisfactory operating experience with each blade profile and height shall be demonstrated.

c. Vendor shall state whether response frequencies have been substantiated by static orrotating tests.

8.3.5 Vendor shall advise on operating constraints imposed by blading (e.g., limits on extraction,induction and exhaust pressures, temperatures, and flow rates).

9 Rotor dynamics

9.1 General


Resonance conditions shall be reported to BP, regardless of the amplification factor.

9.2 Lateral analysis

9.2.5 Add

Add9.2.12 a. A level 1 stability analysis shall be performed by the Vendor in accordance withAPI Publ 684 to demonstrate that self excited vibration will not occur under any loadingcondition.

b. Assumptions regarding magnitude of excitations from oil film, aerodynamic, and othersources shall be stated.

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9.5 Torsional analysis

9.5.1 Add

Turbine vendors that are responsible for overall coordination shall perform a torsional vibrationanalysis of the complete coupled train (see 6.1.2).

9.5.2 Add

i) surge of compressors.

9.5.3 Add

For generator drive applications, lowest torsional resonance of complete train shall be at least30% below frequency of electrical system.

9.6 Vibration and balancing

9.6.3 Add

Balancing procedures shall be such that rotor and coupling interchangeability can be achieved

without need for rebalancing. This requires rotors to be first balanced without couplings andsubsequently check balanced with coupling hubs mounted.

9.6.4 Add

a. If high speed balancing is specified, the rotor shall be run to 127% of rated operating speedto demonstrate its integrity in accordance with 12.3.1.1.

b. If low speed balancing is specified, Vendor shall provide assurance that rotor integrity willnot be compromised at 127% rated operating speed.


A rotor that will be high speed balanced shall first receive a sequential, low speed balance asspecified in 9.6.2.

9.6.7 Delete

Delete “if specified”.

Add

High speed balanced rotors shall also receive a residual balance check.

10 Bearings, bearing housings, and seals

10.1 Radial bearings

10.1.1 Add

a. Bearing design shall be such that bearings can only be installed correctly. Bearing shall bemarked as to its location.

b. For mechanical drive applications, radial bearings shall be capable of withstanding reverserotation for short periods of time without damage.

Add

10.1.3 Bearing metal temperatures shall not exceed 90°C (194°F).

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10.2 Thrust bearings and collars

10.2.1 Add

a. Thrust bearings shall be designed such that they can only be installed correctly.

b. For mechanical drive applications, thrust bearings shall be capable of withstanding reverse

rotation for short periods of time without damage.10.2.2 Add

a. Bearing metal temperatures shall not exceed 90°C (194°F).

b. The limit in a. shall apply for maximum thrust conditions and maximum continuous speed,with design clearances.

10.2.5 Add

a. Maximum face unit loading shall be 1 400 kPa (200 psi), including coupling thrust, basedon clean blading at all points in operating range.

b. Graphic display of speed against maximum load capacity that shows boundaries defined by

the following criteria shall be submitted:

1. Minimum oil thickness for continuous operation.

2. Maximum bearing lining temperature for continuous operation.

3. Fatigue or mechanical limit for bearing or its lining material.

c. This graph shall also indicate maximum continuous and transient loads applied to bearings.

10.3 Bearing housing

10.3.1 Add

Bearing housings shall have connections for breathers or vents.

10.3.2 Add

a. Provisions for air or nitrogen buffering shall be made.

b. Buffering shall be designed to purge oil labyrinths with axial velocity of 4,5 m/s to 6,0 m/s(15 ft/s to 20 ft/s). Allowance should be made for wear to two times design clearance.


a. Provision shall be made for mounting two noncontacting radial vibration probes in each

bearing housing, three axial position probes at the thrust end of each machine, and a oneevent per revolution probe in each machine.

b. Probe installation shall comply with GIS 34-705.

10.3.6 Add

10.4 Grounding

Add

a. A monitoring circuit shall be provided to alarm on brush failure.

b. Brush shall be suitable for reverse rotation.

10.5 Shaft seals

10.5.1 Add

a. Outer gland packing shall be replaceable without disturbing top half of turbine casing.

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b. Labyrinth packing “teeth” shall be on replaceable packing elements. Shaft sleeves withintegral teeth shall not be supplied.

Add

10.5.6 On gas seal installations, steam seal drive collar locking attachment to shaft shall be subject to

BP approval.

11 Materials

11.1 General

11.1.1 Add

a. Bearing housings adjacent to couplings and using semicircular mounting flange shall besteel or steel alloy.

b. Bearing housing brackets shall be steel or steel alloy if attached to a steel turbine case.

11.1.6 Add

11.1.10 Add

Unless approved otherwise by BP, steam path components, excluding valve seats, valve plugs,

bushings, and stems, shall be 22 HRC, maximum.

11.3 Welding

11.3.1 Add

If evidence of BP approved welding procedures cannot be provided, welding procedures shall be subject to BP approval prior to fabrication.

12 Controls and instrumentation

12.1 General

Add

a. Instrumentation and control equipment required to monitor and sequence turbine through

startup, operation, and shutdown shall be furnished.

b. Electrical equipment and instrumentation shall comply with GP 12-45 and GP 30-70.

c. Machinery protection systems shall comply with GIS 34-705.

12.3 Overspeed shutdown system

12.3.1 General

12.3.1.1 Add

Vendor shall demonstrate (by calculation or otherwise) that the system response time will allowcompliance with this clause (refer to 12.3.4.7).

12.3.2 Electronic overspeed detection system

12.3.2.1 Modify to Read

a. An overspeed shutdown system based on 2oo3 voting logic shall be furnished.

b. System shall have three independent channels, an uninterruptible power source, and self

diagnostic facilities.

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12.3.3 Electro-hydraulic solenoid valves

12.3.4 Trip valves/combined trip and throttle valve

12.3.4.2

12.3.4.5 Add

Trip valve strainer material shall be monel.

12.3.4.7 Add

Vendor shall submit the calculation, which shall be subject to BP approval.

12.5 Instrument and control panels


Such panels shall be designed and fabricated in accordance with GP 30-65.

Add

12.5.4 a. Junction boxes, bulkhead plates, cable transits, and blind enclosures shall have fixedidentification tags.

b. Tubing runs and multitube bundles shall be tagged at each end.

c. Tubing of any length that passes through a wall, bulkhead, or equipment that obscures oneend from the other shall be tagged at each end.

12.6 Indicating instrumentation

12.6.4 Thermocouples and resistant temperature detectors

Add

12.6.4.1 Thermocouples and resistance temperature detectors should be connected to instrument junction boxes or be otherwise suitably terminated.

12.6.4.2 a. Vibration and axial position monitoring systems shall comply with GIS 34-705.

b. Completed API 670, Appendix A, data sheet shall be provided.

12.6.4.3 a. Bearing temperature monitors shall be supplied and calibrated in accordance withGIS 34-705.

b. If space allows, each sensor shall have installed spare (not duplex).

c. Sensors shall be securely fixed in intimate contact with bearing metal and located at bearing “hot spot”.

d. Type of thermocouple or resistance temperature detector (RTD) shall be subject to BPapproval.

14 Piping and appurtenances

14.1 General


Piping design, fabrication, examination, and inspection shall comply with GP 42-10 andGIS 34-701.


Gaskets shall be spiral wound, centering guide (CG) type, and type 304 SS with flexiblegraphite filler.

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Page 14 of 21

Add

14.1.4 Piping and conduits shall be designed to give maximum operations and maintenance access.

14.1.5 Winterisation

a. If winterisation is required, mutual provisions shall be made for:

1. Protection against freezing of gages and small piping.

2. Supplying heat (oil circulation) to provide proper oil temperature for startup of pressure lubrication systems.

b. In all cases, complete drainage shall be provided for the turbine, auxiliary equipment,steam, water, and oil lines.

15 Accessories

15.1 Couplings and guards

15.1.2 Modify First Sentence to ReadCouplings and guards shall comply with GIS 34-503.

15.2 Gear units

Modify to Read

Gear units shall comply with GIS 34-501.

15.3 Mounting plates

15.3.1 General

15.3.1.2 AddTurbine feet shall have vertical jackscrews installed in a location outside of the shimming area.

15.3.1.3 Add

a. Size and number of jackscrews shall comply with levelling requirements in 15.3.1.6.

b. Levelling jackscrew hole size shall be at least 16 mm (5/8 in).

c. Levelling jackscrew holes shall be drilled and tapped a length equal to or greater than jackscrew diameter.

d. Levelling jackscrew holes shall be at least 100 mm (4 in) away from anchor bolt holes.

15.3.1.6 Modify to Read

a. Mounting plates shall be machined parallel within 0,042 mm per linear m (0,5 mil perlinear ft) of mounting surface.

b. Elevation difference between mounting plates under a single piece of machinery shall be

within 0,127 mm (0,005 in), maximum.

c. Surface finish shall be 3 μm (125 μin) arithmetic average roughness (Ra). Equipmentmounting surfaces on fabricated baseplates shall also comply with this requirement.

15.3.1.12 Add

a. Peelable or laminated shims, step shimming, or tapered shims shall not be used.

b. The maximum number of shims per support point shall be three.

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15.3.2 Baseplates

15.3.2.3 Add

a. If equipment is mounted on a baseplate and no machine surface is available for 150 mm(6 in) level to determine baseplate levelness, 75 mm by 75 mm (3 in by 3 in) levelling

targets or machined flats shall be provided.

b. Targets or flats shall be adjacent to each anchor bolt location.

15.3.3 Soleplates and subplates

Add

d) Vertical levelling jackscrew holes shall be located in each soleplate corner.

e) Soleplates longer than 1 m (3 ft) shall have additional jackscrew holes aligned with corner jackscrew holes such that spans between jackscrew holes on each side of soleplate are evenand at least 1 m (3 ft).

15.5 Lubrication and control-oil system


Pressurised oil systems shall comply with GIS 34-701.

Add

15.5.7 Type of water removal device that is specified shall be mutually agreed upon with Vendor tomaintain moisture levels within its specified limits.

15.7 Insulation and jacketing

15.7.1 Modify First and Second Sentences to Read

a. Turbines shall be insulated and should be jacketed. b. Insulation and jacketing shall extend over portions of the turbine casing that may reach a

normal operating temperature of 65°C (149°F) or higher.


a. Insulation surface temperature shall not exceed 65°C (149°F) under normal operatingconditions.

b. Jackets and insulation shall be designed to minimise potential damage during removal andreplacement.

15.8 Turning gear


a. It shall be possible to quickly restart the turbine without delay after shutdown of any

duration. A turning gear shall be supplied, if necessary, to meet this requirement.

b. Slow roll to remove the shaft bow prior to restart shall not be an acceptable substitute for aturning gear.

15.8.4 Add

Automatic engagement shall not occur in the event of reverse rotation following a trip.

15.8.6 Modify Second Sentence to Read

Consideration shall be given to:

a. Duration of use.

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b. Minimum speed required for the turbine and driven equipment (including seals).

c. Type of oil supply.

16 Inspection, testing and preparation for shipment

16.1 General


a. Quality plan and inspection and test plans shall be developed in accordance with GP 32-10,

GP 32-11, and GP 32-12.

b. Required amount of advance notice to be provided by Vendor to BP is specified in the

manufacturing and test quality plan (MTQP) clause in GP 32-11.

16.1.7 Delete

“If specified”.

Add

The initialled and dated checklist shall be submitted by Vendor before shipment.

16.2 Inspection

Add

16.2.1.4 An inspection plan shall be subject to BP approval.

16.2.2 Materials inspection

Add

a. Details of procedures and acceptance limits for thermal stability tests on rotors shall be

supplied.

b. Positive material identification (PMI), if specified, shall be performed in accordance with

GIS 36-103.

16.2.3 Mechanical inspection

16.2.3.3 Add

The following will be inspected by BP for cleanliness:

a. All equipment and all piping and appurtenances furnished by or through Vendor, prior toinstallation of nozzle blocks and steam chest covers.

b. The closure of openings in vessels and exchangers.c. Assembly of piping.

16.3 Testing

16.3.3 Mechanical running test

16.3.3.1 Add

k) Electrical runout at the location of each proximity probe shall be measured immediately

before the mechanical running test.

16.3.3.2 Add to c)

The contract overspeed trip system shall be used.

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16.3.3.2 Add to d)

The contract governor shall be used.

16.3.3.3 Add to b)

1. Sweep of vibration amplitudes versus frequencies shall additionally be performed at

minimum operating speed and at normal operating speed.2. Journal orbits shall be recorded at maximum continuous speed.

16.3.3.3 Modify e) to read

Real time vibration data shall be recorded electronically.

16.3.3.3 Add to g)

1. Lube oil and control oil temperatures shall be held for:

a. At least 30 min at value corresponding to minimum allowable viscosity.

b. 30 min at values corresponding to maximum allowable viscosity.

2. For both conditions described in 1., shaft vibrations shall be measured in accordancewith 16.3.3.3.b), checking in particular for oil film instabilities.

Add

16.3.3.5 For all rotors, both stiff shaft and flexible shaft, an attempt shall be made to identify criticalspeeds, up to the maximum test speed.

16.3.4 Optional tests and inspections

16.3.4.6 Overspeed shutdown systems test

Add

Overspeed shutdown system test shall be performed.

16.3.4.8 Inspection of hub/shaft fit for hydraulically mounted couplings

Add

16.3.4.9 Trip valve test

Add

Trip valve test shall be performed.

16.3.4.11 Sound level test

Modify to ReadSound level test shall comply with GIS 15-011.

16.4 Preparation for shipment

16.4.1 Add

a. Items shall be suitably packed and protected against damage during shipment.

b. Each item, crate, bag, etc., shall be identified with the BP purchase order number and allspecial markings, as specified by the order.

c. Special tools that are needed for installation and maintenance and small accessories shall

be boxed and made part of the initial shipment.

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16.4.3 Add to a)

1. Coating systems shall withstand maximum expected temperature.

2. Stainless steel parts shall not be coated and shall not be exposed to inorganic zinc primers, zinc bearing paints, or zinc bearing compounds.

Addl) Vendor shall provide a list and a warning tag affixed to the machine that details the

quantity and location of materials required for shipping/storage purposes to ensure removal prior to startup checkout (i.e., moisture absorbers, bearing paper).

Add

16.4.9 Material safety data sheet (MSDS)

a. Chemicals received at BP facilities shall have an MSDS.

b. Before shipment, a current MSDS shall be forwarded to BP facility for each substanceshipped in or with equipment.

c. Equipment or materials that contain or are coated with any of the following shall be prominently tagged at openings to indicate nature of contents and precautions for shipping,storage, and handling:

1. Insulating oils.

2. Corrosion inhibitors.

3. Antifreeze solutions.

4. Desiccants.

5. Chemical substances.

6. Hydrocarbon substances.d. MSDS copies shall be affixed in protective envelopes to outside of shipment.

e. MSDS shall fully comply with local regulations for MSDS preparation and shall includestatement that substance is considered hazardous by regulation.

f. If any products are exempt from regulation, a statement to that effect shall be included.

17 Vendor's information

17.2 Proposals

17.2.3 Technical data

Modify d) to Read

A list of spare parts for commissioning, normal maintenance (including a major overhaul), andthe main insurance spares (e.g., rotor, guide blade carriers).

Add

q) API data sheets shall be used for all equipment.

r) Blading limitations, approximate lateral critical speeds, and a description of the Vendorquality system.

Add17.2.5 a. For each individual connection, allowable forces and moments on nozzles shall be stated in

the proposal and confirmed after the order.

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b. For the lube oil system and other auxiliary systems, a preliminary bill of materialsidentifying components by make, type, and materials shall be submitted.

c. Retention time of the lube oil reservoirs shall be provided.

17.3 Contract data

Add17.3.5 a. Rating and design conditions of service shall be provided for all components (e.g., pumps

and their drivers, heat exchangers, and heaters).

b. Dial range for pressure and temperature indicators and control, alarm, and shutdownsetpoints shall be provided.

c. Certified outline drawings shall be supplied for main components of the auxiliary systems,such as pumps and their drivers, filters, heat exchangers, and heaters.

d. Drawings for heat exchangers shall include dimensions of shell, tubesheets, and tubes, asapplicable.

17.3.6 Certified copies of test data shall be provided to BP prior to shipment.

17.3.7 Speed amplitude curve

a. Vendor shall provide a speed amplitude curve for each radial probe plane. This curve willshow:

1. Critical speeds below operating speed.

2. The next critical speed above operating speed.

b. The critical speeds (including responses at 2.5 AF and below) shall be identified as tomode.

c. If the trip speed of the turbine is above or encroaches upon critical speed (includingresponses at 2.5 AF and below), a modal response plot for the rotor operating at each suchcritical speed shall be provided, showing the orbits of at least the following points along

the rotor:

1. Shaft ends.

2. Bearing centrelines.

3. Probe plains.

4. Casing seals.

5. All interstage seals.

d. Each orbit shall show phase and amplitude of the major axis.

e. Maximum and minimum design clearances at each of the points mentioned in c. shall beshown.

f. Response plots shall be prepared for maximum and minimum bearing clearances.

g. Critical speeds (including responses with 2.5 AF and lower) below operating speeds shall be shown with maximum allowable unbalance.

h. Critical speeds within or encroaching upon operating speeds shall be shown using fivetimes the maximum allowable unbalance.

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17.3.8 One installation manual shall be shipped with the equipment and included on the shipping list.

17.3.9 a. Parts shall be cross referenced between cross section drawings and a complete bill ofmaterial, which shall include drawing numbers of every individual part.

b. Lists and instructions for spare parts shall be cross referenced to the bill of materials byindividual part numbers.

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Bibliography

BP

[1] GP 44-60, Area Classification (API 500).

[2] GP 44-65, Area Classification (IP 15).

[3] GIS 34-206, Steam Surface Condensers.

gis 34-302 -11 january,2010.pdf

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