engineering standard tc: 3480 centrifugal pumps (non - critical services)

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CENTRIFUGAL PUMPS (NON - CRITICAL SERVICES)

ENGINEERING STANDARD TC: 3480 CENTRIFUGAL PUMPS (NON - CRITICAL SERVICES)

TC: 3480

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CENTRIFUGAL PUMPS (NON - CRITICAL SERVICES)

TC: 3480

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CONTENTS

Sl. No.

SECTIONS

PAGE NUMBER

GENERAL

3

BASIC DESIGN

3-5

INSPECTION AND TESTING

6-7

PREPARATION FOR SHIPMENT & VENDOR’S DATA

7

APPENDIX- I

8

CHECK LIST

9

DEVIATION FORM

10

SPECIFIOCATION SHEET

11-14

SPARE PARTS

15-16

EXISTING PUMP SPECIFICATION & DATA SHEETS

17-22

NOTES: This document shall be used with relevant documents listed below (in order of priority).

information contained

in the

1.

Letter for invitation of bid or succeeding official confirmed order.

2.

Specification sheet of particular pump with relevant drawings, if any, for the project in question.

3.

This document.

4.

Codes & Standards referred in the above mentioned documents and in this document.

CENTRIFUGAL PUMPS (NON - CRITICAL SERVICES) 1.

2.

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GENERAL 1.1.

This standard shall be followed in establishing the minimum engineering requirements for centrifugal pumps for non-critical services.

1.2.

The pumps shall be designed, manufactured and supplied as per Hydraulic Institute Standard / DIN 24256 / ISO-2858 /IS-1520/ IS-13518/ IS-5120 Standard.

1.3.

The pump shall be designed to develop the specified differential head at rated capacity, suction pressure and specific gravity while running at the rated speed. Rated speed of pump shall be full load speed of the drive motor. In case the driver is not in pump vendor's scope, full load speed of the driver shall be furnished to the pump vendor along with other details after order. The pump characteristics shall be guaranteed / tested with reference to the full load speed of motor.

1.4.

Guarantee point shall refer to the differential head, rated capacity, specific gravity, and full load speed of the driver.

1.5.

The pump and accessories shall be suitable for outdoor, unsheltered installation and continuous duty unless & otherwise specified in specification.

1.6.

The pumps shall be supplied complete with all the accessories as specified in the respective specification sheets inclusive of necessary appurtenances, auxiliary piping, special tools, spares etc.

1.7.

Accessories required / recommended by pump vendor other than those specified in the pump specification sheet for safe and efficient operation of the pump unit shall be included in the pump vendor’s scope of supply and the same shall be identified in the bid separately with adequate justification.

1.8.

Deviations and/or exceptions to the enquiry specification sheet, enclosures, applicable standards, etc., must be listed for each document, clause wise with proper reason in a separate annexure in the bid. Otherwise it shall be assumed that all the requirements of the enquiry are acceptable without any reservation and shall be binding to the bidder.

1.9.

Pumps shall have SI dimensions, comply with applicable ISO standards except for piping connections which shall be as per ANSI/ASME standard.

1.10.

Reference list of pumps which are in operation for similar service conditions shall be furnished with the offer indicating broad specifications, purchase order number, date and name & address of user.

BASIC DESIGN 2.1.

The Pump shall be directly coupled with Driver Motor without any Gear Reducer in between.

2.2.

Maximum allowable noise level shall be within 90 dB (A) measured at a distance of 1.0 meter.

2.3.

It should be possible to increase the head minimum by 5% by installing higher size impeller in the supplied Pump.

2.4.

In addition to static balancing, impellers shall be dynamically balanced as per G 6.3 of ISO-1940.

2.5.

Pump inlet, outlet and auxiliary connections shall be flanged. All connections shall be provided with slip-on type companion flanges, nuts, bolts and gaskets.

CENTRIFUGAL PUMPS (NON - CRITICAL SERVICES)

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2.6.

Connections of 11/4, 21/2, 31/2, 5, 7 nominal pipe sizes shall not be used.

2.7.

Pump suction piping shall be as short as possible and shall be arranged with particular care to avoid vapor pockets.

2.8.

Reducers immediately connected to the pump suction shall be eccentric type flat side up to avoid the accumulation of gas pocket. For end suction pumps, elbows shall not be directly connected to the suction flange. A straight piece minimum 3 times the line size shall have to be provided at the suction nozzle.

2.9.

Pump discharge check valve shall be wafer Type as S pecification GAE-60314 and shall be installed in horizontal position.

2.10.

When specified, pump shall be provided with drip tray under the stuffing box and leak-off line with flange, companion flange, nuts, bolts and gaskets. Material composition of the drip tray should be SS-304 only. L eak - off piping shall be arranged up to the edge of the base plate.

2.11.

Pump inlet, outlet and auxiliary flanged connections shall confirm to the facing and drilling requirements of ANSI / ASME B 16.1 or ANSI / ASME B16.5.

2.12.

All equipment shall be designed to permit rapid and economical maintenance.

2.13.

Major parts such as casing components and bearing housings shall be designed (shouldered or doweled) to ensure accurate alignment on reassembly.

2.14.

Impeller shall be keyed to the pump shaft. Impeller nut shall be used to secure the impeller and a positive mechanical locking method shall be adopted.

2.15.

The pump shaft shall be one piece for horizontal pumps.

2.16.

Shafts for horizontal pumps shall be fitted with deflectors. Deflectors shall be made of non-sparking material (corrosion resistant material for corrosive service).

2.17.

Renewable wear ring surfaces shall be furnished on impeller and casing. Casing Wear Ring shall be fitted with non-metallic insert of PEEK material to maintain clearance between Impeller & casing wear rings.

2.18.

Radial Bearing shall be Sleeve type (white metal Lined) in two halves & thrust bearings shall be rolling element type. These shall be designed for 24,000 hours bearing life.

2.19.

For between bearing pumps arrangement, bearing housing shall be cast integral with the lower half of the pump casing or bolted to it. Bearing housing should be provided with stiffening brackets and be sufficiently rigid to resist the dynamic loads during operation.

2.20.

Castings shall be sound and free from shrink holes, blow holes, cracks, scale, blisters and other similar injurious defects. Ferrous pressure casting shall not be repaired by peening, plugging, burning in or impregnating. When weld repairs to castings are authorized by ASTM specification for the material, repair welding shall be carried out in accordance with that specification. Unless otherwise specified, weld repairs shall be inspected according to the same quality standards used to inspect the casting.

2.21.

Material of construction of various pump parts shall be as per pump specification sheet. If the vendor considers other materials better, the same shall be offered as an alternative only and shall be used with the approval of NFL.

2.22.

Copper and copper alloys shall not be used for pump parts for application in ammonia and urea plants.

CENTRIFUGAL PUMPS (NON - CRITICAL SERVICES) 2.23.

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A name plate of 18C r-8 Ni Stainless Steel o r Monel, securely attached by stainless steel pins at an easily accessible point on the pump body shall be furnished. The name plate shall be stamped with following information: - Purchaser’s item number - Pump serial number - Capacity in m3/h - Differential head in meters - Revolution per minute - Casing hydrostatic test pressure in kg / cm2g - Absorbed power in k - Casing hydrostatic test pressure in kg / cm2g - Absorbed power in kW In addition to above an arrow shall be cast / attached at a reasonably observable point on the pump to indicate direction of rotation.

2.1.

Motor shall have power ratings including service factor at least 115% of pump rated absorbed power.

2.2.

Pumps shall be provided with shaft sleeve under mechanical seal / gland packing.

2.3.

Shaft sleeves shall be hard chrome oxide coated under flexible member of mechanical seal.

2.4.

The pumps shall be supplied with mechanical seals of Make Flowserve Sanmar/ Eagleburgmann India only.

2.5.

The mechanical seal on DE Side (Drive End) shall be split type so that replacement / maintenance of the same can be done without removing coupling & coupling Hub. The mechanical seal on NDE side may be conventional type.

2.6.

Mechanical seal shall b e inside m ounted, b alanced type with C arbon versus Silicon Carbide faces. T h e f l u s h i n g p l a n s h a l l b e A P I P l a n 1 1 i . e . F l u s h i n g w i t h d i s c h a r g e f l u i d shall be provided.

2.7.

Only Metastream / diaphragm type of coupling shall be provided. Coupling guard shall be non-sparking for pumps located in hazardous area. Coupling make shall be as follows: Rathi-Discoflex, Euroflex, John Crane (Triveni-Flexibox)

2.8.

Contractor shall arrange & furnish/provide to NFL: a) Lubrication schedule from VENDOR. b) Mechanical specifications and equipment data sheets for approval by OWNER before manufacturing is started. c) Shop fabrication drawings as made available by VENDOR d) Characteristic curves for pumps as made available by VENDOR. e) Certified drawings including civil scope drawing and loading data, pertinent bulletin, installation, f) Operation and maintenance manuals and test certificates as received from VENDO g) Supply of final revised CONTRACTOR'S drawings including one reproducible upon completion of WORK

2.9.

CONTRACTOR shall arrange services of VENDOR'S specialist for installation and commissioning of equipment whenever necessary.

CENTRIFUGAL PUMPS (NON - CRITICAL SERVICES) 3.

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INSPECTION AND TESTING 3.1.

All pumps shall be subjected to inspection by Third Party Inspection agency LRS/TUV/Bureau Veritas or authorized inspecting agency as defined in the purchase order. Test and inspection plan shall be submitted to the inspector for approval. The inspector shall indicate additional test to be witnessed over and above the once specified in the pump specifications. Acceptance of shop test shall not relieve the vendor of this responsibility in any way.

3.2.

Each pressure casing shall be hydrostatically tested to 1.5 times the maximum allowable casing pressure. Multistage pumps may be segmentally tested at appropriate section pressure. Test pressure shall be maintained for a minimum period of 30 minutes during hydrostatic test.

3.3.

Inspector shall witness / inspect the following: 3.3.1. Review of material test certificate for casing, impeller, shaft, shaft sleeve, wearing rings etc., and for spare parts. 3.3.2. Dynamic balancing of impeller as per ISO-1940 3.3.3. Witness hydrostatic test of casing. 3.3.4. NPSHR test, when specified. 3.3.5. Witness Performance test including vibration check. 3.3.6. Disassembly / strip down test. 3.3.7. Visual inspection and dimensional check.

3.4. Manufacturer’s standard shall be applied with respect to the tolerances of each dimension. 3.5. All casting shall be visually inspected before machining for surface defects and irregularities. 3.6. All repairs of defects found on inspection shall be subjected to prior approval of purchaser’s inspector. 3.7.

PERFORMANCE TEST

3.7.1.

Performance test of each pump in the manufacturer’s shop shall be carried out, unless specified otherwise.

3.7.2.

Pumps shall be operated in shop for a period sufficient to obtain complete test data. Unless otherwise agreed, the test speed shall be the rated speed of the pump.

3.7.3. 3.7.4.

Test procedure shall be as per Hydraulic Institute Standard / IS - 5120. During the performance test, pump when operated at rated speed and rated capacity shall give guaranteed characteristics of total head, efficiency, brake kW and NPSH within the following tolerances. Rated differential head : + 5%, - 2% Rated kW : + 4% NPSHR :0

3.7.5.

During performance test, pump shall operate without undue heating of bearings, excessive vibration, noise or other mechanical faults. Such defects if noticed shall be promptly rectified to the satisfaction of the inspector.

CENTRIFUGAL PUMPS (NON - CRITICAL SERVICES)

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3.7.6

Instruments measurement tolerance shall be as per accuracy class I of IS-1520.

3.7.7

When operating fluid has viscosity appreciably higher than test fluid, test values of capacity, head, efficiency and power input shall be corrected to specified viscosity of operating fluid as per IS - 5120 / Hydraulic Institute Standard. Characteristic curves shall be plotted accordingly.

3.7.8

Motor to be supplied as driver of Pump shall be used during performance test of Pump at Pump Vendor’s works.

3.7.9

NPSHR test shall be conducted whenever specified in pump specification sheet.

3.7.10

Test shall be done at 5 points from shut off to 110% of rated capacity.

3.7.11

Motor to be supplied as driver of Pump shall be used during performance test.

3.7.12

NPSHR test shall be conducted whenever specified in pump specification sheet.

3.7.13

Test shall be done at 5 points from shut off to 110% of rated capacity.

3.7.14

Vendor shall compile all the tests & inspection reports relevant to purchase order scope of supply in folder(s). Following reports must be included: -

Material certificates (chemical analysis, chemical test & impact test)

-

Results of non-destructive inspection

-

Results of hydrostatic test

-

Records of performance test

-

Records of NPSH test

-

Records of dimensions

-

Other test conducted by vendor as per specification

-

Guarantee certificates

PREPARATION FOR SHIPMENT 4.1.

Pumps shall be dispatched only after the shop test data and performance test curves are approved by the inspector.

4.2.

The un-machined exterior surfaces shall be sand blasted, descaled and cleaned. The surface must be free from foreign material before paint is applied.

4.3.

The external surface subject to atmospheric corrosion shall be painted with two coats of primer and two coats of epoxy based finish paint.

4.4.

All the internal parts and machined unpainted exterior surfaces shall be protected with suitable rust preventive.

4.5.

When driver is supplied with pump, the same shall be duly mounted on a common base frame.

4.6.

Both halves of the coupling shall be supplied by vendor in machined condition.

4.7.

Each unit shall be suitably packed for outdoor storage for at least six months.

VENDOR’S DATA 5.1.

The pump vendor shall supply the drawings and documents as per Appendix - I.

5.2.

Each drawings / documents shall have the following information in a separate block: Owner’s Name Name of the Project / Plant Purchase Order Number Equipment Code Number / Name Drawing Number / Revision Number Supplier Reference Number

CENTRIFUGAL PUMPS (NON - CRITICAL SERVICES)

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APPENDIX DRAWINGS & DOCUMENT SCHEDULE Bidder shall furnish along with each copy of bid

X

X

X X

X

X

X X X X

X

Vendor shall furnish 8 Hard copies + 1 Electronic copy of drawings / documents for approval /review Vendor shall furnish 12 copies and 2 CD ROM of final documents X - INDICATES APPLICABLE Delivery Time in weeks Description Approval Final List of drawings / documents including drawing number, X 1 4 revision number, description and approval status X 2 Detailed manufacturing program ( Time bar chart ) 4 X 3 Certified dimensional outline & Installation Drawing 4 including Size, Rating, Facing and location of all customer connections, overall weight and handling weights, overall dimensions and clearances, direction of rotation, etc. Cross sectional drawing (of the applicable) with complete X 4 4 bill of material X X

X X X X

5 6 7 8 9 10 11 12

Pump specification sheet in NFL proforma Pump performance curves Q.A.P & Test procedures Spare parts as per Annexure A, B, D & E to Datasheet Reference List Test & inspection report Instruction manuals describing installation, operation, and maintenance procedures Drawings for driver as per specification & engineering standards enclosed with enquiry / order specification (if pump is ordered with driver )

4 4 6

NOTE: 1.

All the final drawings / documents must be delivered at least one week before dispatch of the equipment & accessories.

2.

Final drawings / documents must be submitted in properly arranged folders.

3.

Final documentations shall be supplied in hard copies (12 copies) properly arranged in folders as well as editable soft copies (2 Sets) in CD formats. The applicable s o f t w a r e are MS office 2000, Excel, W ord, M S Access, A utoCAD, etc.

CENTRIFUGAL PUMPS (NON - CRITICAL SERVICES)

NFVP/CWP/2013 -CL-3480

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CHECK LIST (TECHNICAL) FOR CENTRIFUGAL PUMPS Sl. No. 1.

2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12.

Description

Bidder’s reply

Completely filled in NFL data sheet for pump including the following:i) NPSHR, Efficiency, Suction specific speed ii) Absorbed power at rated flow and driver rating iii) Impeller dia. Rated / min./ max. shut off head iv) Percentage possible head increase by Impeller change v) Pump minimum operating flow vi) Mechanical seal manufacturer’s recommendation vii) Bearing size / make, coupling make, ARC valve (if provided) make / size / pressure drop and details viii) Maximum allowable casing pressure and temperature ix) Utilities consumption x) Constructional details of pump, gear reducer and mechanical seal etc. xi) MOC of all the parts xii) Sealing system details Pump characteristic curve (head, efficiency, power, NPSHR vs. flow) for Impeller min. / rated / max. dia. Compliance to scope of supply including instruments, control panel etc. as per ITB. Inspection & testing as per ITB. Third party inspection quoted separately. List of special tools. Spares for 2 years operation & commissioning (item wise price). Reference List Compliance to technical specifications enclosed with ITB, otherwise clause wise deviations, if any. P & I diagram of complete system indicating scope of supply including capacity control, sealing system, lube oil system etc. Cross sectional drawing of the pump and mechanical seal with part list GA drawing of pump and drive unit Drawing and documents as per ITB

Yes / No

Yes / No Yes / No Yes / No Yes / No Yes / No Yes / No Yes / No Yes / No Yes / No Yes / No Yes / No

(BIDDER’S NAME & SIGNATURE)

DEVIATION/CONCESSION/ WAIVER PERMIT

NFVP/CWP/2013-DF-3480

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PROJECT: N F V P / C W P / 2 0 1 3 A D D ITIONAL C. W. PUMPS AT NFL VIJAIPUR-II ORDER/CONTRACT NO. JOB NO. : NFVP/CWP/ APPLICANT IDENTIFICATION: DATE:

DETAILS SPECIFIED REQUIREMENTS

REQUESTED MODIFICATION

JUSTIFICATION :

Commercial impact : Yes

No

Signature:_

Impact on delivery : Yes

No

Name

:_

If yes, Indicate time : weeks. Forward request to disposing authority

DEVIATION NUMBER

D W



‐ PDIL JOB NO

Deviation request receipt date :_ Acknowledgement sent on :

‐ APPLICANT NO

APPROVER’S NO

Signature: Name : (Disposing Authority)

To, Originator of the specified requirement Disposal Decision :

Ref. No.: Date :

DECISION

JUSTIFICATION

Negotiation required : Yes / No 1. Notification to Applicant 2. Copy to specialist department Signature: Name : (Disposing Authority)

CLIENT

:

NFL, VIJAIPUR

PROJECT :

ADDITIONAL C.W. PUMPS I

LOCATION:

VIJAIPUR,

EQUIPMENT

PLANT: AMMONIA-II /UREA-II

:

UNIT: A-II &U-II PROJ. NO NFV?CWP/2 SPEC. NO: NFVP/CWP/2013-CT-3480

SHEET 1 OF 6

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ADDITIONAL COOLING WATER CIRCULATION PUMPS FOR AMM-II AND UREA-II COOLING TOWER

ITEM NO.

:

P- 3801 D & P-4801D

QUANTITY

:

1 Nos. each

REQUISITION NO.

:

NFVP/CWP/2013-3480

PURCHASE ORDER NO.

:

MANUFACTURER

:

MANUFACTURER W.O. NO.

:

1.

THIS SPECIFICATION ALONG WITH CENTRIFUGAL PUMP CHECK LIST MUST

OTHER THAN FOR WHICH IT IS INTENDED.

NOTES :

BE COMPLETELY FILLED - IN BY THE BIDDER AND SUBMITTED WITH THE

2.

3.

OFFER OTHERWISE THE OFFER MAY BE REJECTED. IN CASE OF CONFLICT BETWEEN THIS SPECIFICATION AND THE TECHNICAL DOCUMENTS REFERRED / ENCLOSED, INFORMATION GIVEN IN THIS SPECIFICATION SHALL GOVERN. LATEST CODES / STANDARDS SHALL BE APPLICABLE.

.

NFVP/CWP/2013- UNIT: A-II &U-II SPEC. NO:NFVP/CWP/2013-CT-3480 PROJ NO.:

CLIENT : PROJECT : LOCATION:

NFL, VIJAIPUR ADDITIONAL C.W. PUMPS VIJAIPUR, PLANT: AMMONIA-II /UREA-II

SHEET 2 OF 6

REV 0

CENTRIFUGAL PUMP- SPECIFICATION GENERAL DATA

EQUIPMENT :

ADDITIONAL COOLING WATER CIRCULATION PUMP

ITEM NO-P-3801D/P-4801D

REQ NO:

P.O NO:

MANUFACTURER:

MODEL:

NOS REQUIRED:

One each for Ammonia & Urea (Total 2 Nos.)

DRIVER: MAIN /STANDBY NOTE :

PUMP TYPE INSTALLATION:

ELECTRICAL MOTOR

⌧INDICATES APPLICABLE

⌧ HORIZONTAL □ VERTICAL INDOOR/ OUT DOOR

□ IN-LINE

DESIGN SPECIFICATION: TC-3480 & TECHNICAL REQUIREMENT FLUID CHARACTERISTICS

LIQUID:

COOLING WATER

DENISTY AT P.T : MIN/NOR

1000

Kg/M3

AT P.T :

VAPOUR PRESSURE

2

0.054

Kg/cm a

AT MAX TEMP:

□ CORROSIV E

PUMPING TEMP

-

□HAZARDOUS

Kg/cm2a

□ FLAMABLE

O

NORMAL:

33.5

MIN:

MAX :

VISCOSITY: AT P.T

-

C

0.75

TYPE/ SIZE

□ SOLIDS:

C O

cP

microns

CONCENTRATION

%

OPERATING CONDITIONS

CAPACITY:

RATED:

SUCTION PRESSURE :

□ DISCONTINUOUS □ NO

⌧CONTINUOUS

0 .02

Kg/cm2g

PARALLEL OPERATION ⌧YES MAX ADMISSIBLE PRESSURE AT SHUT OFF

MIN:

MAX:

Kg/cm2g

FLOW CONTROL :

4.2 DIFF HEAD:

ESTI ABS POWER

NPSHA

M3/hr

DUTY

NOR.

DIFF PRESSURE: 4.0 Kg/cm2 SUCTION LINE :

3500

M3/hr

NOR

DISCHARGE PRESSURE: Rated: kW

3700

MIN

Kg/cm2g

40.0

m liq

8

TYPE:

FLUSHING FLUID

%

NORM/DES

TYPE:

EST. EFF:

□ PUMPED LIQUID

□ WATER

0

TEMP:

Kg/cm2g

TYPE:

HEATING FLUID

C

Kg/cm2g

ΔP

□SIGLE COIL SPRING

C

Kg/cm2g

PRESS: NORM/DES

COOLING FLUID

□MECH SEAL

o

FROM DISCHARGE TEMP

PRESS:

DISCHARGE LINE : SIZE/RATING/FACING

STYARTING CONDITION:

m

RANGE

m liq

SIZE/RATING/FACING

SEAL TYPE: □ GLAND PACKED PROCESS VARIATIONS :

58.5

TYPE

0

TEMP

Press: Norm/DES

C

Kg/cm2g

MATERIAL IN CONTACT WITH FLUID HANDLED PERFORMANCE

CHARCTRISTIC CURVE NO :

rpm(m3/s) 1/2/m3/4

SUCTION SPECIFIED SPEED:

RATED SPEED:

rpm NOS OF STAGES:

EFFICIENCY:

%

NPSHR:

HEAD AT SHUT OFF WITH RATED IMPELLER :

m

m

STARTING TORQUE CURVE NO:

RATED ABSORBED POWER:

KW

TOTAL MOMENT OF INERTIA ( GD2)

kg-m2

MAX ABSORBED POWER:

KW

MAX TORQUE AT 100% SPEED

kg-m

MIN CONTINUOS CAPACITY :

m3/hr RATED

IMPELLER DIAMETER

MIN:

mm MAX:

mm

Kg

AXIAL THRUST ON SHAFT: NOISE LEVEL:

BAL. BY:

MAXIMUM 90

dB(A) AT 1m

CONSTRUCTION

PUMP TYPE – API-CLASSIFICATION: CASING MOUNTING: CASING SPLIT : CASING TYPE: NOZZLE CONNECTIONS: SIZE SUCTION: DISCHARGE: BALANCE DRUM:

CASING PRESSURE RATING:

□ CENTERLINE □FOOT □ NEAR CENTER LINE □ INLINE □ AXIAL □ RADIAL □ SINGLE VOLUTE □ DOUBLE VOLUTE □ DIFFUSER □ BARREL RATING

FACING

POSITION

MAX. ALLOW. WORKING PRESS: HYDROSTATIC TEST PRESSURE:

C

Kg/cm2g

SUCTION REGION DESIGNED FOR M.A.W.P: PRESSURE CASING CONNECTIONS : NO.

0

Kg/cm2g AT

SIZE (NPS)

⌧ YES

□NO TYPE

□DRAIN □VENT □PRESSURE GAUGE □WARM UP □BALANCE/LEAK-OFF

THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION WHICH IS THE EXCLUSIVE PROPERTY OF NFL AND IS LENT TO THE BORROWER ON THE CONDITION THAT IT SHALL NOT BE REPRODUCED, SOLD, LENT OR OTHERWISE DISPOSED OF NOR USED FOR ANY PURPOSE OTHER THAN FOR WHICH IT IS INTENDED.

CLIENT

:

NFL, VIJAIPUR

PROJECT : LOCATION: □

ADDITIONAL C.W. PUMPS VIJAIPUR, PLANT: AMMONIA-II /UREA-II □ OPEN

⌧ CLOSED

IMPELLER

PROJ NO.:

□ SEMI-OPEN

IMPELLER

□ BETWEEN BEARINGS

OVERHUNG

UNIT: A-II &U-II

NFVP/CWP/2013-002 SPEC. NO:NFVP/CWP/2013-CT-3480 REV 0 SHEET 3 of 6 1ST STAGE SUCTION : □ SINGLE □ DOUBLE ROTATION VIEWED FROM CPLG. END:  CW  CCW

CENTRIFUGAL PUMP- SPECIFICATION SHEET CASING WEARING RINGS : BEARING TYPE : LUBRICATION :

NO.

THRUST □ RING OIL

NO. □ SPLASH



□ API – 671

API - 610

MODEL

□ FORCED SEAL

mm

PRESSURE

□ CONDENSATE PRESS.

TYPE

Kg/cm2

FLOW PUMP HEATING :

m3/h

□ WATER kg/cm2g FLOW

□ STEAM m3/h

GLAND PACKING : MAKE

PUMP COOLING : API PLAN COOLING WATER:

⌧ API - 682

EXTERNAL FLUSHING FLUID FLOW QUENCHING

SPACER

⌧ REAR SIDE

□ API - 610 MECHANICAL SEAL: MAKE MODEL API CODE FLUSHING API PLAN

TYPE METASTREAM

COUPLING :

⌧ SUCT. SIDE

IMPELLER WEARING RINGS:

⌧ SUCTION SIDE ⌧ REAR SIDE :

RADIAL

m3/h PIPING MTRL:

PRESSURE FLOW

SIZE

NO. OF RINGS

□ FROM PUMP DISCHARGE □EXT. FLOW

PACKINGFLUSHING FLUID

Kg/cm2 m3/h PIPING MTRL:

m3/h

FLUSHING/QUENCHING PIPING MATERIAL :

⌧ NO COPPER OR COPPER ALLOYS TO BE USED

MATERIAL : ASTM or Equivalent CASING / DIFFUSER:

IMPELLERS: ASTM A743 Gr. CA6NM WEARING RINGS – CASING: SA743 Gr. CA6NM WITH PEEK INSERT Gr. WR300

CI (ASTM A48Class30)

SHAFT:

SA322GR. 4140

SHAFT SLEEVES: INTERSTAGE SLEEVES:

SS316

WEARING RINGS – IMPELLER:

BALANCING DRUM:

DRIP TRAY:

BASE PLATE: WEIGHT AND DIMENTIONS

PUMP:

BASE PLATE:

Kg

DIMENSIONS : L x W x H

MOTOR / TURBINE :

GEARBOX:

kg

mm INSPECTION AND TEST

SHOP INSPECTION - AS PER SPECIFICATION TEST

PERFORMANCE

WITNESS



HYDROSTATIC ⌧

NO WITNESS





NPSH

STRIP DOWN

⌧ □

AUX EQUIPMENT □

N/A □

COMPLETE UNIT N/A





DRIVER DATA ELECTRIC MOTOR: ITEM NO RATED POWER:.

STEAM TURBINE:ITEM NO.

MFR kw, SPEED

rpm

RATED POWER :.

POWER : VOLTS/PHASE/FREQ

INLET PR STEAM

MFR.

NA kw, SPEED

OUTLET PR

rpm

Kg/cm2g, TEMP 2

Kg/cm g, TEMP

SCOPE OF SUPPLY

⌧ COMMON BASE PLATE FOR PUMP & DRIVER

⌧ DRIVER

⌧ COUPLINGS

⌧ WITH SPACER

⌧ DRIVER FIXING BOLTS WITH SHIMS

⌧ COUPLING GUARDS

⌧ NON – SPARKING

⌧ BASE PLATE - FOUNDATION BOLTS

⌧ CASING DRAINS

⌧ WITH VALVES

⌧ MECHANICAL SEALS

⌧ CASING VENTS ⌧ WITH VALVES ⌧ SPECIAL TOOLS & WRENCHES (NOTE 2) ⌧ COMPANION FLANGES ( SUC. & DISC.) (NOTE 3)

□ ARC VALVE ⌧ CONTINUOUS BY - PASS ORIFICE ASSEMBLY

□ LUBE - OIL SYSTEM □ LUBE - OIL

PIPING BETWEEN CONSOLE & PUMP

⌧ SPARE PARTS

( 2 YEARS + COMMISSIONING) AS PER ANNEXURE A & B

□ MECHANICAL SEAL ACCESSORIES □PRESS. INDICATOR, FLOW INDICATOR

⌧ SEAL FLUSHING & QUENCHING PIPING

□ COOLING WATER & HEATING PIPING ⌧ DRIP TRAY UNDER STUFFING BOX ⌧ SHOP TESTS ⌧ PAINTING ⌧ SUCTION STRAINER (NOTE 4)

⌧ DRAWINGS & DOCUMENTS IN ENGLISH-AS PER TC-3480 ⌧ PUMP - DRIVER ASSEMBLY AT SHOP

0

c

0

c

CLIENT

:

PROJ NO.:

NFVP/CWP/2013-002

NFL, VIJAIPUR

SPEC. NO:NFVP/CWP/2013-CT-3480

PROJECT :

ADDITIONAL C. W. PUMPS

LOCATION:

VIJAIPUR, PLANT: AMMONIA-II /UREA-II

□ RELIEF VALVE

□ FLUSHING SEPARATOR

UNIT: A-II &U-II

SHEET 4 OF 6

□ LEVEL INDICATOR

REV.

0

□ LEVEL SWITCH

NOTES:

1. NEW PUMPS (1 NO. FOR AMMONIA –II COOLING TOWER AND 1 NO. FOR UREA-II) IS REQUIRED TO BE RUN / WORK IN PARALLEL WITH THE EXISTING PUMPS. PLEASE REFER ATTACHED EXISTING PUMP PERFORMANCE CURVE. SHUT OFF HEAD SHALL MATCH WITH THE EXISTING PUMP. 2. IF REQUIRED, LIST IS TO BE PROVIDED ON THE SEPERATE SHEET. 3. COMPANION FLANGES SHALL BE PROVIDED WITH NUTS, WASHERS, GASKETS, BOLTS ETC. 4. BELL MOUTH, SUCTION STRAINER (SS) & VORTEX BREAKER SHALL BE INCLUDED IN THE SCOPE OF SUPPLY. 5. ALL COMPONENTS MUST BE MANUFACTURED AS PER PREVAILING LATEST INTERNATIONAL STANDARD AND SHOULD BE DESIGNED AS PER GOOD ENGINEERING PRACTICES. 6. MANUFACTURER SHALL INCLUDE ALL THE NECESSARY INSTRUMENTATION, CONTROL AND ANY OTHER ITEM REQUIRED IN ADDITION TO WHAT IS SPECIFIED EARLIER, WHICH THEY MAY FEEL NECESSARY FOR TROUBLE FREE, SMOOTH, RELAIBLE AND HAZARD FREE OPERATION OF THE SYSTEM. 7. COPPER & COPPER ALLOY NOT ALLOWED.

OTHER THAN FOR WHICH IT IS INTENDED.

8. ONLY ONE PUMP TEST SHALL BE WITNESSED TESTED, BALANCE NOT-WITNESSED.

CLIENT

:

PROJ NO.:

NFVP/CWP/2013-002

NFL, VIJAIPUR

UNIT: A-II &U-II

SPEC. NO:NFVP/CWP/2013-CT-3480

PROJECT :

ADDITIONAL C. W. PUMPS

LOCATION:

VIJAIPUR, PLANT: AMMONIA-II /UREA-II

SHEET 5 OF 6

REV.

0

ANNEXURE - A SPARES PARTS LIST FOR 2 YEARS OF OPERATION & MAINTANENCE

S. No 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17

DESCRIPTION Impeller Impeller Locking Nut Wearing Rings for Impeller Wearing Rings for Casing Shaft with keys Shaft Sleeve (Mech. Seal) Set of Seal Faces Set of O-Rings for Mech. Seal Constant Level Oiler Deflectors Complete Coupling Bearings (DE + NDE) Gaskets & ‘O’ Rings Labyrinths Bearing Protector Throat Bushing Throttle Bushing Oil Seals (not applicable if provided with

Electrical: As per document no NFVP/CWP/2013 Annexure E-I Point 18 INSTRUMENTATION As per Instrumentation specification enclosed with enquiry/order specification

QTY (SETS) 1 1 1 1 1 1 2 1 1 1 1 1 2 1 1 1 1

UNIT PRICE (Rs)

TOTAL PRICE (Rs)

CLIENT

:

NFL, VIJAIPUR

PROJ NO.:

UNIT: A-II &U-II

NFVP/CWP/2013-002 SPEC. NO:NFVP/CWP/2013-CT-3480

PROJECT :

ADDITIONAL C. W. PUMPS

LOCATION:

VIJAIPUR, PLANT: AMMONIA-II /UREA-II SHEET 6 OF 6

REV.

0

ANNEXURE - B COMMISSIONING SPARES LIST S. No. 1 2 3 4 5 6 7

Commissioning Spares for Pump Wearing Rings for Impeller Wearing Rings for Casing Shaft Sleeve Gaskets & ‘O’ Rings for Mechanical Seal Deflector Labyrinth Bearing Protector / Oil Seals Complete Mech. Seal

QTY (SETS)

UNIT PRICE (Rs)

TOTAL PRICE (Rs)

1 1 NIL 2 1 1 1

OTHER THAN FOR WHICH IT IS INTENDED.

NOTE:- (Common for both Annexure-A & B) 1.

Set means complete replacement of the particular part in one Pump.

2.

Spare parts listed above, with unit price of each set shall be furnished in the above performa. Bidders are requested to take a Xerox Print of above and fill it up as per requirements. Parts not applicable in the offered machine shall be marked as "NA". Alternate Part used in place of part "NA" shall also be quoted.

3.

Above list of parts is minimum requirement. Vendor may recommend number of sets based on his past experience.

4.

Any additional parts required, based on Vendors experience may also be quoted in the above fashion on a separate sheet mentioning clearly “Additional Spares”.

.

REV0

TECHNICAL CONDITION & SCOPE OF WORK FOR PIPING SUPPLY & ERECTION

NFVP/CWP/2013

DOCUMENT NO.:PC-002 SHEET 1 OF 10

TECHNICAL CONDITION & SCOPE FOR PIPING SUPPLY & ERECTION FOR INSTALLATION OF NEW COOLING WATER PUMPS IN AMMONIA-II & UREA-II PLANTS

0 REV

TECHNICAL CONDITION & SCOPE OF WORK FOR PIPING SUPPLY & ERECTION

0

NFVP/CWP/2013-PIPING

DOCUMENT No. PC-002

REV

SHEET 2 OF 10

CONTENTS

SECTION NUMBER

DESCRIPTION

SHEET NUMBER

1.0

GENERAL PIPING SCOPE OF WORK

3

2.0

DESIGN & DETAILED ENGINEERING

4

3.0

BIDDER’S RESPONSIBILITY

9

4.0

DRAWING/ DOCUMENTATION SCHEDULE

10

5.0

PACKAGING

10

6.0

RUBBER EXPANSION BELLOWS

10

LIST OF ATTACHMENTS ATTACHMENT NUMBER

DESCRIPTION

PC65-00-0001_PGR_Amm2_R0

Existing plot plan of ammonia-2 with Proposed location for new C W Pumps & its Piping

ES-6001 ES-6004 ES-6005 ES-6006 ES-6018

Engineering standard piping design Engg. Standard Fabrication, Assembly & Erection of Piping. Inspection and examination of pipe welds Pressure testing of piping

ES-6032 ES-2001

Engineering standard for flexibility analysis Technical requirement for Shop & site application of Paint & Protective Coating

NFVP/CWP/2013‐Q‐PR NFVP/CWP/2013-Bellow PC65‐ES6002

Specification for Tape Type Wrapping Coating Technical scope, supply of rubber expansion bellow

Engineering Standards: Underground Piping

Piping Specifications(Including valve data sheets & other detail)

TECHNICAL CONDITION & SCOPE OF WORK FOR PIPING SUPPLY & ERECTION

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DOCUMENT No. PC-002

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SHEET 3 OF 10

1.0

GENERAL PIPING SCOPE OF WORK

1.1

The detail scope of work includes such as but not limited to complete management, Design, Detailed Engineering, to provide all the necessary data, drawings, documents required as per the project requirements, Procurement, Supply, Transportation of materials, shop & site Fabrication, Erection, Installation, Supporting, Non-Destructive Testing (NDT) & required Inspection , pr e-heating, dye-penetrant test, Magnetic Particle Test, post weld heat treatment, radiography , Testing, Flushing, Air drying, blowing , cardboard-blasting , seal/leak-testing, Pre-Commissioning, Trial run, Commissioning and Guarantee of all the associated works pertaining to complete piping system and related facilities for ADDITIONAL COOLING WATER PUMPS PACKAGE at NFL,VIJAYPUR.

1.2

Design, material, fabrication and erection shall be in accordance with latest edition of ASME B 31.3 chemical plant and petroleum refinery piping code. The dimensions, manufacturing tolerances shall conform to applicable standards.

1.3

All works described in this package shall be performed in accordance with the designbasis, specifications, drawings, and other requirements of bid package and shall be subject to NFL’S review and approval.

1.4

MATERIAL OF CONSTRUCTION Materials as per internationally acceptable code shall be used for piping based on service requirement. All materials for piping Components shall confirm to ASTM or API Specifications as per enclosed piping specifications. All piping materials and valves shall be procured from the reputed approved suppliers/vendors.

1.5

Cost of piping job shall also include the cost of supervision, Labour, overheads / profits, materials, consumables, scaffolding and all other associated arrangements required to execute the related activities of this package.

1.6

VALVES: Hydrostatic & Pneumatic testing shall be carried out for all valves i.e. 100% quantity as per relevant standard. All valves shall be operated and checked for 100% trouble free operation.

1.7

PIPING INTER - CONNECTION All piping interconnection from B.L of Cooling Water Pump package to tie in points for all lines as marked in P&ID’s and piping GAD’s shall be in the Scope of BIDDER. It is to be noted that BIDDER to physically verify all tie in points and pipe routing from B.L to tie in points and ascertain the pipe items, pipe support, insulation, structural requirement, Excavation, wrapping & coating requirement, supply,

TECHNICAL CONDITION & SCOPE OF WORK FOR PIPING SUPPLY & ERECTION

NFVP/CWP/2013-PIPING

DOCUMENT No. PC-002

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SHEET 4 OF 10

transportation to site , fabrication & erection of all these items shall be in BIDDER scope. Since the piping from B.L. of C. W. Pump Package to the Tie-in Points shall be laid in existing pipe system, the adequacy check of existing pipe rack for new pipe lines shall be in Bidder’s scope. BIDDER to note that tie-in with isolation valves and blind to be erected during next shut down of the plant tentatively planned in March/April 2014 s o that hook-up of New C. W. Package with existing system can be done during plant operation. 1.8

2.0 2.1

After completion of erection jobs, all piping system will be suitably hydraulically/pneumatically tested as per the test pressure indicated in the approved line list / relevant document & standard. DESIGN AND DETAILED ENGINEERING Collection of all data/ information furnished in the bid package and additionally collected/generated by BIDDER. - Finalization of design data/ basis for carrying out design, detailed Engineering for complete C. W. PUMP PACKAGE as per project specifications, contained in this Enquiry documents.

2.1.1

Performing design and detailed engineering of the following:

a)

Complete piping system for C. W. PUMP PACKAGE including all utilities such as drinking water distribution piping with eye washers cum safety showers shall be provided at all critical areas.

b)

Carry Out all necessary calculations in accordance with approved design basis, drawings/documents and requirements of this bid package.

c)

Finalization of layouts for the unit and preparation of construction drawing, preparation of piping drawings, equipment layouts, piping general layout drawings (GAD’s), pipe supports, piping isometrics, flexibility analysis. Typical indicative sketches/drawings included in this bid package document shall be taken as broad basis for developing the layouts. Since the availability of free space is limited, BIDDER shall plan his piping layouts in such a way so as to minimize the area requirement while giving due importance to ease of access, operation and maintenance of the facilities installed by the BIDDER. The fabrication/erection & all other piping jobs shall be carried out based on t he “Approved for Construction (AFC)” Drawings.

d)

Carrying out Material Take Off for the entire piping system.

e)

The detail design shall take into consideration of all stipulations, practices followed by various Statutory Regulations/authorities for all types of piping.

TECHNICAL CONDITION & SCOPE OF WORK FOR PIPING SUPPLY & ERECTION

NFVP/CWP/2013-PIPING

DOCUMENT No. PC-002

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SHEET 5 OF 10

f)

Piping No. shall be as per HTAS Standard as given below: 4”-CW- 251.02- B20

Size of Pipe

Material Code

Fluid Code

Line No.

2.2

PROCUREMENT, SUPPLY AND ERECTION

2.2.1

BIDDER shall procure and supply all materials whatsoever required for temporary/permanent installation of piping system in sequence and at appropriate time. All equipments, materials, components etc shall be suitable for the service and the design life of the system.

2.2.2

BIDDER shall procure all materials, components, equipments, consumables etc required for successful completion of the piping system. BIDDER shall also procure spares required for pre-commissioning and commissioning/start-up as recommended for all the items supplied by him as per specifications provided in this bid package. Where no specifications are available in the contract, the same shall be prepared by the BIDDER, and shall be subject to NFL’S approval.

2.2.3

Material take-off with complete description of size, rating, material, thickness and specifications.

2.2.4

Preparation and finalization of data sheets for all piping materials e.g. all valves etc. All data-sheets shall be subject to review and approval by NFL.

2.2.5

Preparation of Material requisitions, Request for Quotation & its evaluation and recommend BIDDERS for NFL’S approval. Preparation of purchase requisitions, review of BIDDER’S drawings and calculations, approval of manufacturing procedures wherever necessary, and the party inspection at manufacturer’s works of the materials by reputed agencies as required. Quality control and expediting of all procured items at BIDDER’S shop or at fabrication yard.

2.2.6

BIDDER shall procure materials as per specifications and list of approved Vendors/Suppliers (for major Items) included in the bid document.

2.2.7

Carry out proper documentation of inspection and quality assurance programs for all equipment and bulk materials duly approved by NFL. BIDDER shall maintain an accurate and traceable listing of procurement records for the location, quality and character of all permanent materials in the Project.

2.2.8

BIDDER shall immediately report to the NFL of all changes which will affect material quality, and take necessary corrective actions. Purchase requisitions

TECHNICAL CONDITION & SCOPE OF WORK FOR PIPING SUPPLY & ERECTION

NFVP/CWP/2013-PIPING

DOCUMENT No. PC-002

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SHEET 6 OF 10

including Purchase Orders of all major items shall be approved by NFL. For balance items, records shall be furnished for information only. Compliance with BIDDERS and supplier’s instructions and recommendations for transportation, handling, installation and commissioning. 2.2.10

Test on pi pe shall be conducted for all mandatory tests conforming the applicable Material specification .Test reports shall also be furnished for any supplementary test as Specified in the requisition.

2.2.11

All austenitic stainless steel pipes shall be supplied in solution annealed condition.

2.2.12

Gaskets in the piping shall be used as per relevant piping specifications and in no case Sheet / Flat Gaskets of CAF / Non-asbestos shall be used.

2.2.13

All materials shall be new materials with all surfaces clean and free from defects, Weld spatter, arc strike, rust, dirt, sand, scale, paint or any other foreign substance

2.2.14

Each Pipe fitting of thickness and sizes as mentioned below shall be ultrasonically tested as per ASTM A-388 Size range

Sch./Thk

Upto 4”

>Sch 120

> 5”

12 mm

2.2.15

Electrodes and Filer Wires to be used at site shall be of Advani Oerlikon, D & H Secheron, ESAB, Bohler, Thyseen, Kobe, Sandvik, Avesta make only.

2.2.16

Inspection and tests at the Vendor's shop shall be carried out in conformance with the requirements of the material standards (ASME/ASTM/API) specified on the purchase order documents.

2.3

Stud, Bolts, Nuts and Jack Screws:

2.3.1

All bolting shall be as per ASME/ANSI B18.2.1 for Studs, M/C Bolts and Jack screws, and ASME/ANSI B18.2.2 for nuts (prefereably in metric units).

2.3.2

Threads shall be unified (UNC for; 1" dia and 8UN for> 1" dia) as per ANSI B1.1 with class 2A fit for Studs, M/C

2.3.3

Stud bolts shall be threaded full length with two heavy hex nuts. Length tolerance shall be in accordance with the requirement of table F2 of Annexure F of ASME B16.5

2.3.4

The length of the studs/ bolts should be such that minimum two threads should be out of the nut on either side.

2.4

Supports and Anchors

2.4.1

Supports and/or anchors shall be provided close to changes in direction of lines, branch lines and, particularly, close to valves to prevent excessive sagging, vibration and strain.

2.4.2

Allowable spans between pipe supports shall be determined to keep the maximum deflection within 16 mm.

TECHNICAL CONDITION & SCOPE OF WORK FOR PIPING SUPPLY & ERECTION

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DOCUMENT No. PC-002

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2.4.3

In cases where periodic maintenance requires removal of equipment, such as pumps and relief valves, and where lines must be dismantled for cleaning, piping shall be supported to minimize the necessity of temporary supports.

2.4.4

Spring-loaded hangers may be used on pi ping subject to thermal expansion or contraction. In cases where the movement is very large, or the limitation of reaction and stress are very severe, constant support spring hangers shall be used.

2.4.5

Suction and discharge lines of rotating equipment shall be supported as close as possible to equipment nozzles, and shall be relieved of excessive strains by using proper pipe supports.

2.4.6

All piping shall be properly supported to minimize vibration.

2.4.7

Expansion joints shall be guided and anchored to the extent necessary for their proper operation and alignment.

2.4.8

Anchors shall provide sufficient fixation to substantially transmit all load effects into the foundations.

2.5

UNDERGROUND PIPING

2.5.1

Underground steel piping shall be protected from electric corrosion.

2.5.2

Underground piping passing under loaded areas, such as main roads in the plant, shall be protected from heavy traffic by casing pipes or covers extending at least 1 m on either side of the area or having the wall thickness sufficient to bear earth pressure.

2.5.3

Underground piping shall be sloped to all drain points with a downward slope of not less than 1 m in 150 m.

2.5.4

Expansion elbows or joints of underground piping for hot fluids, such as steam or heated heavy oil, shall be enclosed in a conduit from which they are separated to allow free longitudinal expansion.

2.5.5

Where it is impossible to run pipe aboveground or underground, trenches may be used.

2.5.6

Trenches for piping close to process equipment should be avoided, whenever possible.

2.5.7

All underground pipe work shall be provided with following protection: a) At location where Underground Piping becomes above ground, INSULATING GASKET with material Glass Filled Teflon shall be provided. b) IMPRESSD CURRENT CATHODIC PROTECTION shall be provided to all underground piping. c) Underground piping shall be wrapped & coated by “PYP KOTE” tapes / sheets, 4.00 mm thick & shall be “HOLIDAY TESTED” before Hydro Test as per Specification 4292/1073/1074/Q-PR-2001. d) All underground pipes shall have Sand Bed, at least 150 MM all around the pipe. e) All road crossings by Underground piping shall be through Hume Pipe Sleeves.

2.5.8

Pipes at road crossing shall be under culverts in general. Where culverts are not

2.6

BURIED PIPES

provided, pipe sleeves shall be used for underground road crossing.

The following points to be considered in designing of buried pipes. i)

Underground pipe crossing roads, access ways, rails shall have casing pipe (R.C.C or C.S)

TECHNICAL CONDITION & SCOPE OF WORK FOR PIPING SUPPLY & ERECTION

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DOCUMENT No. PC-002

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ii) All underground metallic piping shall be coated and wrapped and provided with cathodic protection system. If sacrificial metal is used, permanent testing arrangement shall be provided.

iii) Valve chamber wherever required shall be made of brick or concrete. Valve chamber should be spacious to attend valves during operation/Maintenance. iv) All U.G. headers shall clear equipment foundations as far as possible. Under special cases, the C.W. header may be laid over the footing of foundations. v) Provide break flange at + 500 MM from floor level connection with cathodic protection to isolate underground pipe from above ground piping. vi) Pipes shall be laid below electrical cables if any. 2.7

GROUTING Grouting of pipe supports, structures, equipments and machineries etc. shall be carried out in general as per PDIL Engineering standard E-5213, except the following: A) i)

SELECTION AND TYPE OF GROUT For piping support, ordinary grout mix as mentioned below may be used: 1:1:2 cement grout to which anti-shrinkage compound is added, such as CONBEX MONOLITHEX OR FERROGROUTE ETC.

ii)

During actual grouting three cubes for testing are to be taken for each batch prepared and to be tested and must meet the strength required as mentioned.

Contractor shall check and ensure that cement containing calcium chloride is not used for grouting and all grouting shall be suitably cured so as to achieve full strength. After the grout has been cured fully, anchor bolts shall be checked for adhesion with the grout by tightening of nuts. Instructions for grouting received from equipment vendor shall override specification in this enquiry. 2.8

MARKING

2.8.1

Each pipe shall be legibly marked using stencilling or etching on the outer surface of pipes in accordance with the ASTM or API Standard. For pipes of NFS 3/4 and under, which can be bundled/ the standard marking may be made on a label or tag securely attached to each bundle. In this case, pipes bundled shall comprise of same item code only.

2.8.2

In addition to the standard marking of the above, each pipe shall be color marked with continuous stripe(S) throughout entire length on t he outside surface to identify the material specification in the same size, e.g. material type or grade, seamless or welded, partial or full radiograph, wall thickness.

2.9

PAINTING All the painting material will be bought in accordance with Spec. ES-2001 (Engg. Standard: Selection and Application of Protective Coating) or equivalent Standard applicable.

TECHNICAL CONDITION & SCOPE OF WORK FOR PIPING SUPPLY & ERECTION

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DOCUMENT No. PC-002

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2.10

CONSTRUCTION All construction works be carried out as per “Approved for Construction” drawings, procedures, specifications and applicable codes and standards. Any changes at site shall also need prior approval from the NFL and revision of drawings. BIDDER shall procure and supply all materials whatsoever required for temporary/permanent installations of piping system in required and at appropriate time. All equipment, materials, components etc. shall be suitable for the intended service and the design life of the system. W herever no specification is available in the contract, the same shall be prepared by the BIDDER and shall be subject to NFL approval.

3.0 3.1 3.2 3.3 3.4 3.5 3.6

BIDDER’S RESPONSIBILITY All works shall be carried out by Bidder in accordance with the drawings / documents / specifications indicated in the subsequent paragraphs. Specifications: Standards: Piping Support Standards: Flexibility analysis Drawings: 3D Modelling & Design Review: Bidder shall submit all proposal designs, analysis, drawings, installation and testing procedure for review & approval by NFL as mentioned in the scope work. B idder shall as a minimum, provide above deliverables for NFL’S information / records & review / approval.

3.7

Site location Plan drawing no- NFVP/CWP/2013-AMM2 CW Package is included in the bid package. T his drawing is INDICATIVE only and is furnished for Bidder’s information. Issued for construction (IFC) drawings shall be prepared by BIDDER after detailed engineering being done by him and shall be subject to approval by the NFL.

3.8

The BIDDER shall submit separately, the material take off for piping, valves, fittings and all other accessories as per requirements.

3.9

The BIDDER shall obtain statutory approval from various authorities having jurisdiction over the area as necessary for construction of the unit package.

3.10

Sizes of various Piping indicated in the Tie-in List & NFVP/CWP/2013- TI-002 are tentative and final sizes shall be as per designing & recommendation of Vendor. However, Sizes of existing lines where Tie-in is to be taken are actual.

3.11

Piping specifications enclosed in ITB indicates all the details like Material & Class of Pipe, Pipe Fitting, Bolting, Valve Type / Tag No. etc.

4.0

DRAWINGS/ DOCUMENTATION SCHEDULE Bidder shall furnish all the drawings/ documents to NFL for comments/ approval. He shall incorporate all comments/ modification suggested by NFL. The

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DOCUMENT No. PC-002

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drawings/documents should be properly organised, supplied & submitted as per documentation schedule. 4.1

With Bid Following drawings/documents must be submitted along with the bid. i) Proposed equipment layout drawing. ii) Proposed piping Layout drg. iii) Quality control procedure & plan for piping system. iv) Completion schedule of piping job in Bar-chart format. v) List of all construction equipments, tool-tackles & man power resources proposed to be used. vi) Clause wise list of deviations / exclusions, if any, to bid requirements shall be furnished. BIDDER is cautioned that exclusions and deviations listed elsewhere in bidder’s offer shall not be considered for evaluation vii) List of existing drawings for existing plot plan, tentative location/size of C. W. Pumps package & tie in point location BIDDER to note that the location/size of CW Package and Tie in points is tentative only & they have to physically verify all these points at site & quote accordingly.

4.2

With Supply The pipes shall be supplied with 3 copies of the mill test certificates indicating the following and duly signed by the inspecting authority along with supply of materials. In addition 8 copies of these certificates shall be sent to Contractor for final compilation.

a) Purchase order no. b) Material test certificates (Material specification, grade, physical property, chemical composition & heat treatment report) shall also be furnished for the flanges supplied. c) Size and Sch. No. /thickness d) Quantity e) Heat and lot no. f) Results of Chemical analysis g) Mechanical test results (as per applicable Clause). i) Non-destructive test results (as per applicable clause), 5.0

PACKAGING Packaging of piping items shall be as per the guidelines of NFL.

6.0

RUBBER EXPANSION BELLOWS Rubber expansion bellows to be provided in the suction & discharge piping of Cooling Water Pumps shall conform to “Technical scope, supply of rubber expansion bellow NFVP/CWP/2013-Bellow”.

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engineering standard tc: 3480 centrifugal pumps (non - critical services)

CENTRIFUGAL PUMPS (NON - CRITICAL SERVICES) ENGINEERING STANDARD TC: 3480 CENTRIFUGAL PUMPS (NON - CRITICAL SERVICES) TC: 3480 0 DOCUMENT NO REV ...

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