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Page 1

USER'S MANUAL Issue date : 11/04/97

INSTRUCTIONS

FOR OPERATION AND MAINTENANCE OF CENTRIFUGAL PUMPS FOR LIQUEFIED GASES --

Type: I!. . \..

., .. ,

Comm. NO.:

97011.Ol-03

Customer:

BOC TECHNOLOGIES PTE

Order No.:

4618-2098196

/

The purpose of these instructions is to facilitate the operation of your pump and to avoid errors. Reading these instructions carefully before installation and start-up means safeguarding your interests and will be repaid by satisfactory service and performance of the machine and low cost of repair. We recommend you to keep on stock all spare parts mentioned in these instructions and would be grateful if, when placing orders for spares, you would use our designation and indicate the number of your pump. You will find the machine number of the name plate of each pump.

i..-'

-,

Sales and service departments

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BOC AG CRYOSTAR P.O. Box 338 Wasgenring 90-94 CH 4012 BASEL

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Telephone: Telefax:

(41) (61) 307 25 25 (41) (61) 307 25 05

Manufacturer

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CRYOSTAR FRANCE S.A. Zone lndustrielle B.P. 48 HESINGUE F - 68221 HEGENHEIM CEDEX

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USER'S MANUAL Issue date : 11104197

BUSINESS CENTRES CRYOSTAR USA 382 Turner Way USA ASTON, PA 19014

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CRYOSTAR SINGAPORE 203 Henderson Road Blk B 10-09 Henderson Industrial Park SGF SINGAPORE 159546 Tel: +65 276 7441 Fax: +65 276 7442

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Tel: + I 610 485 2331 Fax: + I 610 485 3168

CRYOSTAR UK Station Road, Industrial Estate Unit 4+5 GI3 - WOMBWELL, Barnsley S73 OHA, S. Yorkshire Tel: +44 1226 759 921 Fax: +44 1226 756 729

USER RESPONSIBILITY This equipment will perform in accordance with the instructions and information contained in this manual, and its referenced documents, when such equipment is installed, operated and maintained in compliance with such instructions. The equipment must be checked periodically. Defective equipment shall not be used. Parts that are brocken, missing, plainly worn, distorted or contaminated shall be replaced immediately. Should such repair or replacement become necessary, BOC AG-CRYOSTAR recommends that a request for service will be made. We recommend you to keep on stock all spare parts mentioned in these instructions. At the end of the manual we indicate how to put in an ordre for spares. The equipment, or any of its parts, shall not be altered without the prior written approval of BOC AGCRYOSTAR. The user and /or purchaser of this equipment shall have the sole responsibility for any malfunction which results from improper use, faulty maintenance, damage, the use of spare parts that are not from BOC AG-CRYOSTAR, improper repair or alteration by any party other than the manufacturer.

Attention It is essential to read the directions for use prior to unpacking and installation. Moreover, the machine must be used and maintained by qualified personnel. Note This document is the property of BOC-AG Cryostar. It is not permitted to copy it, or to relate its contents to other persons, or to misuse it in any other way.

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USER'S MANUAL Issue date : 11/04/97

TABLE OF CONTENTS

I.TECHNICAL DATA 1.IPump . data 1.2. Operating data 1.3. Acoustic pressure 1.4. Test .d 1 .:> ,-.. . /

2. GENERAL 2.1. Description of the Design

3. SAFETY 3.1. Warning 3.2. Isolation and energy dissipation 3.2.1. lsolation and dissipation of gas process energy 3.2.2. lsolation and dissipation of purging gas energy 3.2.3. lsolation and dissipation of electrical energy 3.3. Safety form for oxygen pump 3.4. Safety form for argon pump 3.5. Safety form for nitrogen pump 3.6. Customer safety instructions - Summary

4. STORAGE OF THE EQUIPMENT PRIOR TO INSTALLATION

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I.

4.1. BOC AG Cryostar Delivery Inspection 4.2. Degreasing and Lubricating Greasetoil for Oxygen Duty 4.3. Inspection by Customers on Arrival 4.4. Storage of the Pump

5. INSTALLATION 5.1. Handling 5.2. Erection 5.3. Installation Scheme 5.4. Storage Tank 5.5. Piping 5.5.1. Suction Line 5.5.2. Discharge Line 5.5.3. Bypass Line 5.5.4. Vent Line 5.6. Inert Gas Purging of the Gearbox 5.7.lnert Gas Purging of the Mechanical Seal (Optional) 5.8.Valves and Fittings 5.9. Gearbox

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USER'S MANUAL Issue date : 11/04/97

5.10. Differential pressure switch

6. LUBRICANTS 6.1. Motor-bearing grease 6.2. Gearbox oil 6.3. Characteristics

7. START-UP 7.1. Pre-Start-up Inspection 7.1.1. Vent 7.2. Cool-down and Start-up of the Pump 7.2.1. Spin Test by Hand 7.2.2. Direction of Rotation 7.3. Suction Pressure and Mechanical Seal 7.4. Differential pressure switch 7.4.1. Recommendations for start-up 7.5. Shut-down of the Pump

...,-

8. TROUBLE SHOOTING 9. MAINTENANCE INSTRUCTIONS 9.1. General 9.7.7. Assembly I Disassembly : Table of tightening torques and forces 9.2. Periodical Revisions and Maintenance 9.3. Dismantling of the Pump 9.4. Assembly of the Pump 9.5. Adjustment of the Mechanical Seal 9.6. Dismantling of the Gearbox 9.7. Assembly of the Gearbox 9.8. Motor Bearings Regrease and Maintenance

.&

10. CRYOSTAR'S MAINTENANCE AND SPARE PARTS SERVICE 10.1. Order Instructions -.

11. ANNEX 11.I. NPSH 11.2, Appendix to spare parts lists

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USER'S MANUAL Issue date : 11/04/97

LlST OF DRAWINGS AND OTHER ENCLOSURES DRAWING TITLE

DRAWING NUMBER

Flow diagram Handling drawing Dimensional drawing Performance curve Cold end Cold .Endwith Gearbox Gearbox sectional drwg. Set of gear wheels for gearb. Fillings-, vent-, purge connect. Special tools Checklist

705070145 708111520 702111139 Test curve 773023344-01 703061033 763002755 709046321 709047851 768026490 706110193

SPARE PART LIST NUMBER

E - 773023344-01 E - 763002755 No.7b

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USER'S MANUAL Issue date : 11/04/97

4.

TECHNICALDATA

1.I. Pump data Serial number Type Number of stages Nominal impeller diameter Tip width Speed Position of suction nozzle Position of discharge nozzle Execution Year built 1.2.

9701 .Ol-03 GBS 15514.5-6.8 C/3 I 155 mrn 4.5 mm 6800 rpm Axial I BronzeIBronze 1997

Operating data

Medium Liquid temperature Max. Suction pressure Minimum NPSH Flow rate Differential head

LO, / LN2 / LAr -183°C / -195°C I-196°C 5 barg 7m 400 Ilmin 780 rn

11 -3. Acoustic pressure Average value

~85dBA Caution : Pumps equipped with gearboxes operatin speeds higher than 6000 rpm must be fitted with noi protections, depending on installation and use conditions on-site.

11.4.

Test

Medium Test speed

Nitrogen Please, refer to 'Acceptance report'

Not8 : Working data have been measured at the test stand. The test allows pressure to be checked under cryogenic working conditions. Note : if required, test protocoles, material certificates or pressure test certificates are included in the quality data book depending on the contract conditions.

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USER'S MANUAL Issue date : 11/04/97

GENERAL 2.1.

Description of the Design The pump is a single stage high speed centrifugal pump driven by an electrornotor with gearbox with the required gear ratio. The gearbox is directly connected to the motor flange. Pump and gearbox are coupled together by a support which is otherwise the bearing carrier. The gearbox is splash oil lubricated. The undesirable cold creep from the pump cold end to the bearings is reduced to a minimum by an insulation ring, small contact surfaces and long support arms. The rigid pump shaft is supported by the mounting of roller bearings and ball bearings, depending on the use. To avoid oil penetration by the high speed shaft, a labyrinth seal is provided. These instructions contain a description of the pump, as well as complete descriptions of installation, operation and maintenance of the pump.

Options The front bearing can be equipped with a temperature probe for maximum and minimum temperature control. The pump seal is a special mechanical seal.The rear chamber of the seal can be purged by nitrogen.

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USER'S MANUAL Issue date : 11/04/97

3.

SAFETY

3 1

Warning

Safety norms applied on site must be scrupulously respected. The enforcement of a safety area will limit access to authorized personnel only. Any operation on equipment in use is prohibited

I

Any operation on equipment in use is prohibited

1

Any normal operation must be made according to the recommendations in the instructions Any repairs must be made according to the recommendations in the instructions

~

A OR MOST L SERIOUS INJURIES MAY OCCUR IF SERVICE

High voltage is applied in the operation of this equipment. The use of liquid gases or gases under high pressure has high risk factors if service personnel do not follow safety regulations. Fatal or most serious injuries, fire, explosions or suffocation may occur depending on the liquid gas used in the system. Please, refer to the motor instructions

Explosion hazard in the presence of oxygen Cleaning and degreasing for use with oxygen All components and equipment must be cleaned and degreased and must be safe for use with oxygen.

I

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USER'S MANUAL Issue date : 11/04/97

After cleaning and degreasing, the components and equipment should be sealed and protected against contamination. The sealing and protection should not be removed until immediately before installation. Consult Cryostar.

Explosion hazard in the presence of oxygen I Carefully remove all degreasing fluid, which may also be extremely hazardous in the presence of oxygen1 For obvious technical reasons linked to ice formation, it is not possible to completely isolate all pump components.

Burning hazard I During cool-down and working periods, it is strictly forbidden to touch the machine

Our products must be handled with a handling system. Please, refer to the Instatlation scheme Isolation and energy dissipation

3.2.

(Maintenance) I o u r products must be installed in a unit which ensures all functions of

I

cutting, separation, locking, pressure purging and checking All energy external to our product originating from the customer (electricity, purging gas, compressed air, N2-purging, etc...) must be isolated and dissipated by means of isolating switches (hand operated valves with padlocks, locking electric switches..). Gas line valves must be chosen

1

1

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USER'S MANUAL Issue date : 11104197

carefully so as to permit a VOLUNTARY locking or unlocking of the user with valve isolation. 3.2.1.

Isolation and dissipation of gas process energy

Components and instruments which permit the isolation and the dissipation of the gas process energy depend on the users internal procedures of isolation and energy dissipation and the parameters of their networks. Thus, it is not possible for CRYOSTAR to plan the installation of this type of equipment on the supplied machine. 3.2.2.

Isolation and dissipation of purging gas energy

The user must ensure that all purging pipes have been isolated before any operation on the product. 3.2.3. Isolation and dissipation of electrical energy

Before each operation on parts or equipment normally under voltage, the personnel must isolate them when the equipment is at a standstill. - Cut off and separate the equipment from the supply source by switching off. - Lock the switch in a separation position with a padlock or any equivalent locking device. The locking switch must be in an open position. - Before operation, check that there is no more accumulated residual voltage (Note : All orange coloured electrical circuit of the electrical equipment supplied by CRYOSTAR remain permanently under voltage). All electrical operation should be carried out by trained and authorized personnel. The electrical connections must be connected by trained and empowered personnel who must respect the local regulations and protection rules in force.

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USER'S MANUAL Issue date : 11/44/97

3.3.

Safety form for oxygen pump Physical properties:

. Formula :

0 2

Molecular weight : . Molecular dimensions : . First ionization potential : . Gas density S.T.P. :

2=8 31.9988 g.mole-' 4,2-2,8A 12.059 eV 1,4289 kg.m3

. Atomic number ,

Oxygen is a gas colorless, odorless and testeless.

,

Working recommendations :

No smoking near the pump.

. Oil and grease stained clothing must not be worn. , ,

Greasy rags should not be left lying about and the floor must be free of oil stains. Work with flame should be avoided in the enclosure of the pump.

Recommendations in case of accident (fires. burns) : In case of clothing fires, it is essential to act with maximum speed. Water is still the best extinguisher in several cases. Hence quick action with a shower, bath or extinguisher is necessary. It appears that hasty wrapping in a blanket is of doubtful effectiveness.

A

First aid for burn victims (low temperatures of liquid oxygen) :

Burns of this type are generally local. Burnt parts of the body should be warmed gradually and then treated as conventional burns. While awaiting the doctor, carry out the following first aid measures :

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USER'S MANUAL Issue date : 11/04/97

. If large blisters have been formed on the skin or if the eyes are suffering from burns, immerse the burnt area in water or apply cold compresses, and convey the victim to a doctor. . If the injury is less serious (spattering on the skin, small blisters), immerse the burned area in cold water until the pain stops, coat the area with vaseline and keep it wet for 24 hours by means of a cold 30 g/l boric acid solution. , Do not pierce the blistes. . Do not touch or undress the victim . Do not speak to the victim face to face . If possible, wrap burnt parts of the body in sterilized compresses

. Alwavs summon a doctor immeditatelv. ,

Cover the victim with a sterilized blanket.

A

Leak detection and analvsis :

Before employing a pump intended for use with pressurized oxygen, test the assembly with a leak detector such as a helium detector. The atmosphere surrounding an installation containing oxygen must be monitored for oxygen concentration. Any rise in the latter considerably increase the risk of accident. Portable oxygen analyzers may be employed.

3.4.

Safety form for argon pump

Phvsical properties:

. Formula :

. Atomic number

Ar Z=18 39,948 g.mole-1

. Molecular weight : 3.8A , Molecular dimensions : . First ionization potential : 15,755 eV I,7836 kg.m-3 , Gas density S.T.P. :

Argon is a gas colorless, odorless and tasteless.

Ah

Leak detection and analvsis :

-

--

Page 13

USER'S MANUAL Issue date : 11/04/97

Before using a pump intended for use with pressurized argon, test the assembly for leaks : . with a leak detector such a helium detector, . by the application of a surface-active agent at suspected points

Nitrogen does not give to any oxidation reaction. It is a nonflammable gas.

Bioloaical properties : Nitrogen is a physiologically inert, nontoxic gas. By displacing the oxygen in the air, it may have harmful effects on the organism, by reducing the partial pressure of oxygen and acting as an asphyxiant.

First svm~tomsof asphyxia bv a r w n :

. Gradual loss of balance, dizziness Feeling of tightness or compression in the head, located near the forehead,

. Tingling sensation in the tongue, fingertips and toes,

. Difficulty and weakening of speech, leading to the inability to utter a sound,

. Unnoticeable and then rapid reduction of the ability to exert physical effort and to coordinate movements, leading to total immobility, , Reduced awareness of the outside world and damping of sensory characteristics, particularly the touch It should not be presumed, however, that any of the symptoms enumerated above will necessary be felt or detected, thus providing a guarantee of sufficient warning.

3.5.

Safety form for nitrogen pump

Phvsical properties:

. Formula :

. Atomic number . Molecular weight : ,

Molecular dimensions :

N2

2=7 28,0134 g.mole-' 3A - 4 , l A

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USER'S MANUAL Issue date :11/04/97

. First ionization potential :

15,58 eV 7,25053 kg.mm3

. Gas density S.T.P. : Nitrogen is a gas colorless, odorless and tasteless.

A

Leak detection and analvsis :

Before using a pump intended for use with pressurized nitrogen, test the assembly for leaks : . with a leak detector such a helium detector, . by the application of a surface-active agent at suspected points

Nitrogen does not give to any oxidation reaction. It is a nonflammable gas which is used to render reactive atmospheres inert.

Bioloaical properties : Nitrogen is a physiologically inert, nontoxic gas. By displacing the oxygen in the air, it may have harmful effects on the organism, by reducing the partial pressure of oxygen and acting as an asphyxiant.

First svmptorns of asphyxia by nitrogen : ,

Feeling of tightness or compression in the head, located near the forehead,

. Tingling sensation in the tongue, fingertips and toes, Difficulty and weakening of speech, leading to the inability to utter a sound, . Unnoticeable and then rapid reduction of the ability to exert physical effort and to coordinate movements, leading to total immobility, . Reduced awareness of the outside world and damping of sensory characteristics, particularly the touch ,

It should not be presumed, however, that any of the symptoms enumerated above will necessary be felt or detected, thus providing a guarantee of sufficient warning.

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USER'S MANUAL Issue date : 11/04/97

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Customer safety instructions Summary

3.6.

appropriately trained personnel

FlUssigkeiten und Gase unter hohern D~ck

rotation

rotation non contrdlbe

Drehen verrneiden

Check nameplate details

VBrifier les informations sur la plaque signalbtique

Typenschilddetails prUfen

Check stored equipment every 6 months

Vbrler le materiel entreposb tous les 6 mois

Gelagertes Material alle 6 Monate kontrollieren

No loose fasteners

Pas de fixations desserrbes

Keine losen Befestigungen

I

garnltures

und ~leitrlngdichtun~en

I

Se reporter au manuel d'instructions

Siehe Betriebsanleitung

I

I

Refer to Instructions

I

I1

'

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I

Mls PI la terre Check rotation. uncoupled

VBrlfler la rotatlon & vide

Maschine in Leerlauf prOfen

Les connexions sont+lles serr4e ?

Sind die Anschtusse fest angerogsn 7

Covers must be fltted

Les capots de protection des boites A borne dolvent &re en place

Abdeckungen der Klemmenkasten mussen angebracht sein

Fused and isolated correctly

ProtBgB par coupe circuit et is016 correctement

Korrekt abgesichert und isoliert

I connections are tlght ?

'

1

entsprechend geschultem Personal ausgefuhrt werden

Gases and liquid under high pressure Gaz et liquides sous haute pression

l WII 1

effectuhes par un personnel habilit6

Jeder Elektro-Schrank rnit Helzband Every control box with a heating band Toute armolre Blectrique Bquipbe d'une r6slstsnce chauffante doit rester muss unter Spannung sein must be "on ' sous tension Reepect tightness of the control box

Respecter I'dtanchbit6de I'armoire

Beim Anschlussen des Eleklro-

II I

Page 16

USER'S MANUAL Issue date : 11/04/97

Check driven equipment is free

Verifier que la machine entratnde soit libre

Prufen, ob angetnebene Maschine frei beweglich ist

Rated capacity and pressure not

DBbits et pressions trop faibles

Durchsatz und Mrderhbhe nicht erreieht

Mechanicalseal leaking

Fuites garniture

Gleitringdichtung undicht

Vibrations

Pumpe vibriert

Pump overloads drive

Moteur surcharg6

Pumpe Uberlastel den Antrieb

Bearings overheated

Roulements s'bchauffent

Lager laufen sich heiss

Consulter le fournisseur

Hersteller fragen

Pour les details de lubrification etc.. consulter le fournisseur

Schmierung usw. siehe Herstellungsangaben

lndlquer le numero de la machine, le numbro de plan de la pike, la d6stgnation

Maschinennummer,

Se reporter A: norme de construction EN 294

Bitte nachschlagen in : Baunorme EN 294

IQI

m

Quote equipment number, stock number, designation

--

A

construction standard EN 294

Page 17

USER'S MANUAL lssue date : 11/04/97

4.

STORAGE OF THE EQUIPMENT PRIOR TO INSTALLATION

4

-

BOC AG Cryostar Delivery lnspection

Every pump undergoes a trial operation with liquid nitrogen before leaving our works, hence only perfectly functioning machines are delivered from our factory.

4.2.

Degreasing and Lubricating Greaseloif for Oxygen Duty

k!

Pumps labelled 'degreased for running with oxygen' may be run with oxygen without further treatment. They are delivered with a greasefoil suitable for oxygen service. Pumps delivered, by customer request, with mineral grease, are labelled 'not for oxygen'.

4.3.

Inspection by Customers on Arrival Every pump should be checked immediately upon delivery, and any damages incurred during transportation should be reported immediately to the transporters or to Cryostar. Refer to Sales Conditions, Incotenns, lssue 1990.

4.4.

I. . :. ..-,

.

Storage of the Pump

!k!

If the pump is not for immediate use, it must be stored in a dry environment, protected from oil, dust and water. Important: The polyethylene wrapping around the pump, and the protective covers on the pipe connections should only be removed immediately before installation. CAUTION: Check stored equipment and spare parts at regu;ar intervals e.g. every six months at minimum. Any moisture, dust, rust etc. must be removed before use. Note, parts for oxygen service which are stored or installed for more then six months prior to use must be dismantled and checked carefully prior to start-up. The time period given above is our recommendation only and must be adapted to the users own safety regulations. Fatal or most serious injuries may occur if service personnel do not follow the safety regulations.

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USER'S MANUAL Issue date : 11/04/97

5.

INSTALLATION 5.1.

Handling Every machine that weights more than 55 kg must only be handled with a Handling System. Please refer to Handling drawing.

R@+MpfTYRE '

'

Weight I500 Kg Pump with gearbox Weight 5 500 Kg Pump without gearbox VCS LOX CBSH

5.2.

708114352 705113963 705104881 705111521

Erection Place skid on a flat surface that has been prepared according to the dimensional layout drawing and capable of supporting the indicated load. Secure the skid to the surface with the required amount and size of bolts as indicated in the foundation drawing. The skid to be preferably grouted to limit vibration. The stability of the whole installation must be ensured.

5.3.

Installation Scheme The enclosed installation schematic drawing and operating instructions on the following pages apply in normal operating circonstances only. Therefore, they are relatively general and only the most important points for all different service applications are mentioned. The installation schematic drawing shows only indispensable equipment and piping for the operation of a pump for liquefied gases and should be completed accordingly for different applications.

5.4.

Storage Tank

Most suitable is a pressurised storage tank which maintains the required NPSH of the pump (Please, refer to the Annex). The machine must be installed as close as possible from the tank.

Page 19

USER'S MANUAL Issue date : 11/04/97 >

The tank discharge connection should be in the bottom of the tank and short. A syphon or plunging pipe are unsuitable as gas which is formed in the line is collected and cannot leave the pipe. The diameter of the tank discharge connection should be adjusted to the flow. It should not be too small (minimum diameter same as the pump suction connection) to keep the pressure drop small. 5.5.

Piping

Piping must be carefully designed so as not to transmit any stresses or forces to the pump during operation or during stand still. Temperature contractions and elongations must also be taken into consideration. For this reason, flexible pipe parts should be installed. 5.5.1.

Suction Line

The suction line connects the tank discharge and the pump suction connection and should be as direct and as short as possible. The pipe must have a constant downwards inclination to the pump to allow forthcoming gas to return into the tank. The pipe diameter should be selected and designed for flow with an average velocity of approx. Imlsec. Smaller velocities reduce the friction losses, but disadvantageously increase the heat inleak accordingly. This reduces the available NPSH (see par. 10.1) and increases the gas vaporization loss during the cool down period. Good insulation is therefore essential. But it should not hinder the movements of flexible pipe parts (flexible hose). In view of gas vaporization losses the shut-off valves and the filter should not be too large, as larger sizes mean increased heat inleak and longer cool down time. Pumps for oxygen senrice must be protected against foreign particles by a filter in the suction line. Particles, which enter the pump are a potential fire or explosion hazard. The filter should have approx. 560 micron mesh and the useful surface should be two times the suction pipe area at minimum.

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USER'S MANUAL Issue date : 11104197

Manifolds without a constant liquid flow should be shut-off as close as possible to the branch in order to minimize the liquid gas vaporization. All piping sections which can be shut-off must be equipped with safety valves to avoid excessive pressure increase due to the vaporization of liquid gas. 5.5.1.1. Design of the suction line

Installation of the suction line The pipe must be as short and direct as possible Well insulated and applying no force to the pump Same diameter as the pump suction connection (also fittings and valves) Fitting and valves limited to a minimum Constant inclination downward to the pump

Required Fittings and Valves a) Shut-off valve b) Safety valve c) Flexible pipe section d) Filter for oxygen service (only if the pump is used with oxygen) e) Non-return valve on the pump discharge

Recommendations e) Shut-off valve in every branch f) Pressure gauge g) Gradual pipe diameter changes branch connections h) Oblique branch connections Filter even for non oxygen service k) Insulation 5.5.1.2. Suctlon line : Installation Errors Possible lnstallatlon Errors

Abrupt pipe or valve diameter changes Narrow bends, T-branches Long pipe without insulation Branch shut-off walve not dose enough, branch pipe not insulated High - -point in the line Flexible elbow Lack or filter or safety valve

Trouble Pressure drop Pressure &OD j Pressure drop and heat inleak ] Gas formation, the gas will be sucked ( into the pump or the suction line will be I clogged I Gas accumulation, gas bubbles will be sucked into the pump or the suction line will be cloaaed "" 1 Additional force I Pump or seal failure possible

Vote: Pressure drop, heat inleak = lowers the NPSH

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USER'S MANUAL Issue date : 1t/04/97

5.5.2.

Discharge Line

The discharge pipe should have the same diameter as the discharge connection of the pump, or somewhat larger for longer piping and when excessive pressure loss would restrict the flow too much. The discharge line characteristic must be put into consideration with the pump characteristic curve!

A shut-off valve, a non-return valve and pressure gauge should be installed in the discharge line. 5.5.3.

Bypass Line

For faster cool down and for easier start-up a bypass line should be provided. The bypass pipe should have the same diameter as the pump discharge line or should be designed for the pump minimum flow. 5.5.4.

Vent Llne

A vent pipe with shut-off valve is advantageous for the venting of piping and pump and for faster cool down. 5.6.

Inert Gas Purging of the Gearbox Oils suitable for Oxygen service do not provide a high degree of lubrication. Atmospheric humidity can penetrate into the gearbox and cause corrosion damages to un-lubricated surfaces. This can be prevented by inert gas purging. To prevent this phenomena, a special connection is provided on the gearbox. We recommend a nitrogen purge of this connection. This will considerably improve the life-time of gears and bearings.

The gearbox must only be purged if the pump is not in operation. Purging during operation would result in oil mist in the cold end. 5.7.

Inert Gas Purging of the Mechanical Seal (Optional) Purging the chamber behind the mechanical seal with 'hot' Nitrogen is recommended when using gases such as Ethylene, Methane, Propane, etc. For this purpose the rear chamber of the mechanical seal can be provided with an N2 purge connection. N2-purging is recommended for continuously cooled down and for open air pumps. It considerably improves the life time of the mechanical seal.

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USER'S MANUAL Issue date : 12/04/97

Nitrogen gas purging pressure: 0.02 - 0.05 bar 5.8.

Valves and Fittings

All valves, fittings, filters, manometers, etc.. must be adapted to a company's own internal safety regulations and must also correspond to health-safety legislation. For any damages caused by unsuitable assembly of the piping system, BOC AG-CRYOSTAR cannot be held responsible. 5.9.

Gearbox During the test run in our factory, the gearbox is lubricated with the necessary oil which aftetwards is drained. Before the start-up the prescribed the gearbox must be filled with the required volume of oil.

5.1 0. Differential pressure switch The differential pressure switch indicates the pressure difference between suction and discharge.

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USER'S MANUAL Issue date : 11/04/97

6.

LUBRICANTS

The following lubricants should be used: 6..

Motor-bearing grease

For oxygen service ESSO Beacon 325 For argon, nitrogen or hydrocarbon service ESSO Beacon 325 6.2.

Gearbox oil

-

For oxygen service Fomblin LOX 120 For argon, nitrogen or hydrocarbon service SHELL Tellus 32

Caution Because of explosion risk, do not use normal, commercialfy mineraloil-based lubricants for oxygen service.

6.3. Characteristics

. 4 ". UNIT,

,

,

,

;"", ,

,

"G~ARACTTERISTICS* ,

;

Cryostar ref. Appearance Soap base Temperature range Base oil Kin. viscosity at 40°C at 100°C Drop point Penetration-unworked Penetration-worked x6O Bearing performance against corrosion Test NF T 60-135 Resistance to water washing out at 40°C Loss Tests on bearlngs at high temperature Test FTMS 791 b-331-2 at 120°C

781001263 creamy smooth grease Lithium -55 to 120°C synthetic ester

Vaporization losses Test ASTM D 972 (22 h .12I0C),loss

cSt cSt "C

1

"l

,

7

11.8 3.25 180 260 280

0 %wt

I

h > 1000 %wt

0.5

" "

.

^

-

Page 24

USER'S MANUAL Issue date : 11/04/97

I

,

Type:

Sombliri'LOX I2b I Method,

Crvostar ref. ?our point Kin. viscosity Volatility (% Mass loss 1 22 hours at 120°C) Ignition temperature (corresponding oxygen pressure is 110 kg/cm2) Spec. gravity Surface tension Refractive index Average numerical molecular weight

. :' ~,.-r

.

.

-

., ~.T

-*

I

. , '

,

.

-

."

*

..

1 730001184

- 41°C

ASTM D 97 ASTM D 445 ASTM D 972

120 cSt 7

BAM test ('1

365°C

ASTM D 89llA ASTM 0 1331 ASTM D 1747 MAN PF 291240

1.89 glcm3 21 dyneslcm 1.296 nO' 2400

I) Budesanstall mr MaerlsrpronrnO

2) BundessrulolIOr Maierlrl~fung

,

, ,,A

,

,

.

'

)

,

~ ~ 8 h " e l v T e ~ 1 :~ 8 r 3 '

, .' - .:.< -,

'

-

,

pe:. \ 783000980 ,
E&$&g ... ... ....,.... . -. - .-2

2mo

-

230.0

.

.

lm

..om

. Em6

-

P

1790

5

..-rOY

Iso.0

-

..30s IIP.-

..m llOP

-.I a n

lM,O .

,+- I

240

1a.O220

280

200

300

360

340

3320

406

340

420

4d0

440

480

flow

pGiKi%l 26.0 ---.-

L

B g

m.0

10.0

-- - -- -- -- . --

--

11,0--

--

-

---------m--

---.-- -

-- -

-

--

"LI-LL. 0.0 220

240

200

--

260

Joe

320

340

3W

Flow

sMI

400

420

440

460

480

I CommbsIon n* : ~umpty~e: Curtomu : Older n* :

ACCEPTANCE REPORT ~h (Wrm):

PUMFWA:

Oasr trarrsm~sion:2,33 Crank d r b : 3 Cold end n* : 773023Wf

400.0

lid(m) : 180.0 lmpelbrdlam (mm) :155

MOTOR WTA :

I

87011-03 GBS tss14.ltg.aC ~ J CRYOSTAR Sjnppaur 4618

-:

speed(fP@:

hb(a n* :

Typb : V W :

cunent~:

Tested wm LS30

F r e q vW ) : 50 P o w r e c m : 22,o

m in Tmxam mloroethl(lenemom at 75x

w:

The pump has been Wraased by d

RBICT#HTEST:

The pump has been tested wUh UquW nltmgen st

5 mn.b obj8Ulim WY beenmade

-190% Tor

Inrrerterelry :

0- dlam (mm): speed (rpm) : 7350

Inlet Temp

OutletYemp

SdmP

'C

barsp

-198.1

Y: -193,3

-166.2

-193,8

.la53

-193.8 -193,9 -194

0.78 0.75 0.70

-3952 -186.3

Dischsrgep bars g

om

l&xJ

0.68

17.10 1km

17.80 -1 7.60

Fbvr Vmn 250.0 3W.O m,O m.0 =a0

Hsad m

m.2 219,l 215,4 2W 5 m.0

cl~rrent

V W e

Amp

V

30.5 32.4 34.4

397

382 38.0

397

368 388 398

hW 161 l7b t g.0 20.5 21.8

GbblM Hydraul pawer 96 W 45,03% 7.3 4a.WSa 8.9 51,734 Q,8 53,3346 10,s 54.43% 11-9

motor* % 8634% 86.78% 87,01% 87.25% 87.47%

Pumppmar kW 13,s 15,3

Gbbal ell Wraul poruer % WJ 45,28% 8,9 40.93% 10.2 S2,Of % 11.7 53.71% 13.0 i4.1

motor etl

Pump power

%

kw

%

87.01% 8730% 87,57% 87.87%

16,6 18.2 19.7

52.04% 56,05% 59,443%

213

88.1236

22.7

81.12% 62,22%

16,5 17,9 19.1

pump* % 52,04% 58.05% 59,48% 61,12%

62,22%

Orhe dlam (mm): S p d (rpm) : 6920

I& Temp

OUM Temp

'C

T

Suctbn? ban g

D[BchBrga P ban p

FhW 235.4 282,d 329.5 370.6

flaed rn 197,8 1943 190.9 185.7

423,7

179,O

Vmn

Current &

Vowe V

Motor pwlrer W 19.0 20,8 22.4 25.7

I

I TEST VAUDAtKlN :

Pump-

Test v a W i n blhe p s m rebponslMefor -t

WOUERVALLIATDN : The pump p m f o r r m m found to be h accordam wtth pump saQ daie

Dab :

@nature :

Test NZ (curve 1)

PERFORMANCE CURVE FROM NITROGEN TEST M:

un%lymm

l~mfs l i m n

Fbw : Pump power:

Clla~lrr:

GBS15W4S68cn

lo!vmtlh

Iqu : rpnd OPfnl:

Irnpllu d b (mm): fmqueny (Hz):: frqurncy 4nvrrbr : m t a:

imY

240.0

m.0

m.0

210.0 70Y

Zw.0

dOY

lw.o

E

I

# ! ..a .m

170.0 ..

a

lbD.0.

..SDI

----------..20Y .. 10Y

930.0.

l

l

no

D

ZM

280

240

~ c o

MI

320

.

m~

jeo

4w

0 0% 4ao

rro

420

Plow

R l unppwmrl 200

a

$

-----

.-

15.0

-

-..- -- -- --- - -

150

- rn- -. ---

100

--

0.0 2X

240

-- -- .- .

- -

. .

----.

M

-

-

2W

-

--

300

- .

3X

.

360

340

Flow

.

--

380

400

4M

4

4W

-

b

Test tJ2 (curve 2)

PWDICTED PERFORMANCE CURVE IN SITE CONDITIONS

Pump powur :

npwd (rpml:

l m p l l u dim (mm): mgumcy (Hz): : t n q u ~ 1nvrrt.r ~y :

-

.lm

210,o

L ,

-

..

mo.0

RIY

i>J .\ 100.0.

1&4,0.

170.0

.

L

t

leJ.0.

1 I

.-

I P

3

15b.o

.

a

..

m

lap -

.30Y

150.0 -~

.m

1m.o.

.lo%

I . no

llO.0 210

2x1

ma

2 s

sm

330

310

.an

JBO

370

430

410

4%

Flow

Irunibpauar) 30.0

t r2

26.0

--.----

---.-

--

---

-

-

-.-

--

--

20,o

7 -

s

1 I

,o,o

.. .

..

6.0

0.0 7 210

- ..,-- . ...

.....

i

.... . -- -

I

-

-

-.--.

I

! 230

2W

270

280

310

330

350

370

JW

41

410

4-

plow A