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INSTALLATION, OPERATION AND MAINTENANCE MANUAL

FOR RTP

ROTARY LOBE PUMPS.

1.0

SAFETY INFORMATION.

1.1

ISK ASSESSMENT RELATING TO THE USE OF

RIGHT

LOW

ECHNOLOGIES

IMITED

RTP

ROTARY LOBE PUMPS AND PUMP UNITS IN POTENTIALLY EXPLOSIVE ATMOSPHERES

2.0

INTRODUCTION.

2.1

ENERAL

2.2

RIGHT

LOW

ECHNOLOGIES

IMITED

ISTRIBUTORS

2.3

ECEIPT AND

TORAGE

2.4

LEANING

2.5

UMP

ODEL

ESIGNATION

2.5.1

ATEX

NFORMATION

3.0

GENERAL.

3.1

RTP

UMPING

RINCIPLE

3.2

RTP

PERATING

ARAMETERS

3.3

YSTEM

ESIGN AND

NSTALLATION

3.3.2

NSTALLATION WITH

CIP

YSTEMS

3.4

TART

-U

ROCEDURE

3.5

HUTDOWN

ROCEDURE

3.6

OUTINE

AINTENANCE

–

TEX UNITS

3.6.1

DDITIONAL

OUTINE

AINTENANCE

–

TEX UNITS

3.7

EATING AND

OOLING

EVICES

3.8

NTEGRAL

RESSURE

ELIEF

ALVE

4.0

RTP

PUMP DISMANTLING AND ASSEMBLY.

4.1

ISASSEMBLY

4.1.1

RONT

OVER AND

OTOR

EMOVAL

4.1.2

EARBOX

ISMANTLING

4.1.3

HAFT

ISASSEMBLY

(RTP30

HOWN

4.2

SSEMBLY

4.2.1

EARBOX

OTORCASE

SSEMBLY

4.2.2

HAFT

SSEMBLY

–

RTP20

4.2.3

HAFT

SSEMBLY

–

RTP30

4.2.4

IMING

4.2.5

ETTING THE ROLLING TORQUE

4.2.6

OTOR

LEARANCES

4.3

RODUCT

EAL

ITTING AND

EMOVAL

4.3.1

ENERAL

ROCEDURES FOR

NSTALLING

EALS

4.3.2

RTP20

O-

RING

EAL

EMOVAL AND INSTALLATION

(

ABOVE ORDERS

61152).

Содержание Wright Flow Technologies RTP Series

Страница 1: ...P Pa ag ge e 0 0 INSTALLATION OPERATION AND MAINTENANCE MANUAL FOR THE RANGE OF PUMPS...

Страница 2: ...INSTALLATION WITH CIP SYSTEMS 15 3 4 START UP PROCEDURE 16 3 5 SHUTDOWN PROCEDURE 17 3 6 ROUTINE MAINTENANCE NON ATEX UNITS 17 3 6 1 ADDITIONAL ROUTINE MAINTENANCE ATEX UNITS 18 3 7 HEATING AND COOLI...

Страница 3: ...4 3 6 RTP30 STANDARD RADIAL LIP SEAL 44 4 3 7 RTP30 O RING SEAL 45 5 0 SPECIFICATIONS 46 5 1 CLEARANCE CHART 46 5 2 FASTENERS TORQUE SETTINGS 47 5 3 LUBRICANTS 48 5 4 TOOL LIST 49 5 5 RTP30 FOUNDATIO...

Страница 4: ...ons A device must be incorporated into the pump system or drive to prevent the pump from exceeding its stated duty pressure It must be suitable for both directions of pump rotation where applicable Do...

Страница 5: ...rge pipelines are fully opened Ensure that all piping connecting to the pump is fully supported and correctly aligned with its relevant connections Misalignment and or excess loads will cause severe p...

Страница 6: ...pplied with this pump will be invalidated by the use of non genuine Service Parts DO NOT loosen or undo the front cover any connections to the pump shaft seal housings temperature control devices or o...

Страница 7: ...ur re e t to o b be e s su ui it ta ab bl le e f fo or r a an n a ap pp pl li ic ca at ti io on n T Th he e f fe ea at tu ur re e m mu us st t b be e f fi it t f fo or r i it ts s d de es si ig gn na...

Страница 8: ...he pump was selected Wright Flow Technologies Limited or their authorised distributor should be consulted to ensure the pump is suitable for the new application 2 2 Wright Flow Technologies Limited Di...

Страница 9: ...ignation of pump models This information together with the pump serial number should be provided when requesting additional information on the pump or when ordering spare parts The pump serial number...

Страница 10: ...lidate the Atex certification Pumps that have the Atex certification will have an earthing point on the front cover this needs to be electrically earthed before use The service and maintenance interva...

Страница 11: ...ight Flow Technologies Limited or your Wright Flow Technologies Limited distributor providing the pump model and serial number as stated on the pump nameplate see Fig 2 in section 2 5 2 which is fixed...

Страница 12: ...the energy from the drive shaft to the driven shaft synchronising the rotors such that they rotate without contact with each other As the rotors pass the suction port A the cavity increases creating...

Страница 13: ...for assistance If the system or product characteristics are to be changed from the original application for which the pump was selected Wright Flow Technologies Limited or their authorised distributo...

Страница 14: ...orm of An in line pressure relief system i e external to the pump Incorporation of a torque limiting device in the drive system It is recommended that all piping and associated equipment from the tank...

Страница 15: ...alculations to determine system NPSHa are carried out for the worst condition see below Should advise on pump or system NPSH characteristics be required then contact the factory or their authorised di...

Страница 16: ...e baseplates are fastened in position the drive alignment must be re checked When using electric motor drives ensure that the electrical supply is compatible with the drive and controls and that the m...

Страница 17: ...t is considered a good practice to set the relief valve lower than the system design pressure On completion of start up the relief valve should be reset to the required setting for the application The...

Страница 18: ...shed product seal auxiliary services have been isolated and depressurised Pump head and piping have been drained and purged 3 6 Routine Maintenance Non Atex units Grease Check for any signs of lubrica...

Страница 19: ...After 14000 hours of use the pump will need a general overhaul and it will need to be re certified for use within the Atex environment A general overhaul must include a full disassembly of all compon...

Страница 20: ...n the pumping chamber and product seal area The pressure rating of the RTPTM jacketed front cover and rotorcase heating cooling ports are 3 5 bar g 50 psi and should not be exceeded without consulting...

Страница 21: ...cess the heating cooling media should continue to be circulated during the cleaning cycle Fig 8 Dimensions for Heating Cooling Dimensions in Millimeters A6 M1 A7 M2 A8 RTP20 0100 10 80 79 N A N A 45 R...

Страница 22: ...se should be eliminated as continuous operation of the pump with the valve open is not recommended and may cause severe damage to the pump If the pump on which the valve is installed is to be installe...

Страница 23: ...li ie ef f V Va al lv ve e ITEM NUMBER DESCRIPTION 101 RV FRONT COVER 103 DIAPHRAGM PTFE FACE TO THE PRODUCT 106 SPRING HOUSING 109 SPRING 110 SCREW 112 VALVE HEAD 116 O RING 126 SPACER IF REQUIRED 1...

Страница 24: ...enance of these items will ensure that the lubrication is sustained and the pump maximum working life is achieved To ensure this it is extremely important that care is taken when removing and installi...

Страница 25: ...uts 36 Remove front cover 38 using lever slots where necessary continue and remove the front cover O ring 39 from rotorcase 40 Remove rotor retainer s 35 using socket 58 provided Note The socket 58 sh...

Страница 26: ...ve retaining screws 74 and remove the endplate 70 from the gearbox 16 utilising the retaining screws 74 in the jacking points provided see fig 12 The endplate is located on dowels 60 and is sealed by...

Страница 27: ...ings 24 and 19 see fig 13 Remove Lip seals 17 from the gearbox 16 Disassemble gearbox 16 from rotorcase 40 by removing the retaining screw 7 Utilising the retaining screws 7 in the jacking points on t...

Страница 28: ...ews 23 Remove the timing gear 14 and locating dowel 80 Remove O rings 26 from the rear of the shaft 9 or 10 Remove O rings 25 from the front of the shafts 9 or 10 Remove front bearing assembly 24 E En...

Страница 29: ...Rotorcase Assembly See Fig 14 Install front bearing cups 24 not shown Do not install the front lip seals 17 until the bearing pre load has been set The lips may give a false rolling torque reading as...

Страница 30: ...ig 14 Gearbox Rotorcase Assembly 4 2 2 Shaft Assembly RTP20 Install front bearing 24 to the shaft 9 or 10 Install O rings 26 and 25 to shafts 9 or 10 in the appropriate grooves Lightly lubricate all O...

Страница 31: ...set The lips may give a false rolling torque reading as well as increasing the risk of damage during assembly Install endplate assembly onto the gearbox 16 locating on the dowel 60 4 2 3 Shaft Assembl...

Страница 32: ...a nominal amount 0 05 mm of shim 73 under the rear bearing cups 19 Do not install the rear lip seal 11 until the bearing pre load has been set The lips may give a false rolling torque reading as well...

Страница 33: ...achieved For mesh clearances refer to section 5 1 If the rotor clearances cannot be achieved then the rotor assembly will need to be dismantled and the shaft assembly removed from the gearbox Rotate...

Страница 34: ...shown in Fig 19 It is important to drill and ream the hole so that the dowel is positioned equally between the gears 14 and shafts 9 and 10 Fig 19 Installing and positioning the timing dowel Install t...

Страница 35: ...rom the rotorcase assembly see fig 12 The lip seals 17 can be installed into the gearbox 16 and the slinger disc 62 where applicable requires lubricating with a compatible lubricant before assembly on...

Страница 36: ...e that seal faces are undamaged and the O rings are not cut swollen or cracked Lip seals and O rings within the seal assemblies should be lightly lubricated with an elastomer compatible food grade lub...

Страница 37: ...This seal arrangement requires a supply of media to the outboard side of the mechanical seal to quench or flush the seal area The nature of the pumped media and the specific duty conditions will deter...

Страница 38: ...ould be taken when carrying out these procedures to ensure that the O ring grooves sleeve faces and O ring are not damaged Remove the front cover dome nuts front cover rotor retainer and rotor as per...

Страница 39: ...lot lines up with the drive pin When it is in place tighten up the grub screws and the assembly will be held in place To install the rotors see section 4 2 6 Rotor clearance check installation NOTE Th...

Страница 40: ...ould be taken when carrying out these procedures to ensure that the O ring grooves sleeve faces and O ring are not damaged Remove the front cover dome nuts front cover rotor retainer and rotor as per...

Страница 41: ...place tighten up the grub screws and the assembly will be held in place To install the rotors see section 4 2 6 Rotor clearance check installation NOTE The grub screws are only required on the RTP20 O...

Страница 42: ...replace the O rings as required When installing the static face into the rotorcase make sure that the slot in the static face lines up with the pin in the rotorcase Fig 24 To install the rotors see s...

Страница 43: ...the O rings Remove the stationary seal assembly from the rotorcase by releasing the retaining nut 12 Note that there is an anti rotation device incorporated into the rotorcase not shown when replacing...

Страница 44: ...12 care should be taken as the stationary seal face may still be installed If required extract the stationary face from the seal sleeve exposing the O rings Note that there is an anti rotation device...

Страница 45: ...nd replaced if required from the cartridge If required remove the seal sleeve 66 from the rotorcase by releasing the retaining nut 12 when replacing the seal sleeve 66 alignment between the seal sleev...

Страница 46: ...now be removed and replaced if required from the cartridge If required remove the seal sleeve 66 from the rotorcase by releasing the retaining nut 12 when replacing the seal sleeve 66 alignment betwe...

Страница 47: ...P Pa ag ge e 4 46 6 5 0 Specifications 5 1 Clearance Chart B A C Radial D C Radial...

Страница 48: ...p pr ro od du uc ct t s se ea al l s se ec ct ti io on n 4 4 3 3 w wh he er re e a ap pp pl li ic ca ab bl le e 2 2 F Fo or r p po os si it ti io on n o of f i it te em ms s s se ee e s se ec ct ti io...

Страница 49: ...ades should be used in these temperature ranges EP150 18 to 0 C 0 to 32 F EP220 0 to 30 C 32 to 85 F EP320 30 C and higher 85 F and higher Care should be taken not to overfill the gearbox Refer to man...

Страница 50: ...MM TO 0 50 MM 0 0012 TO 0 0197 388M ROLLING TORQUE METER 0 5 NM 0 3 69 FT LB SOFT FACED MALLET STEEL HAMMER SMALL RTP30 TYPE SIZE OR RANGE HEXAGON ALLEN KEY 5 MM HEXAGON ALLEN KEY 8 MM COMBINATION SP...

Страница 51: ...P Pa ag ge e 5 50 0 B B 100 mm or 4 PORT 80 mm or 3 PORT 5 5 RTP30 Foundation Dimensions Stub Shaft Drive...

Страница 52: ...P Pa ag ge e 5 51 1 B B E C D T S A Q M P R N L HB HT HS X X V W 4 HOLES U DIA CONNECTION SIZE 5 5 1 RTP20 and 30 Foundation Dimensions Basic Pump Hydraulic Drive...

Страница 53: ...h hr re ea ad de ed d c co on nn ne ec ct ti io on ns s i in nc cl lu ud di in ng g A AC CM ME E T Tr ri ic cl la am mp p e ex xc ce ep pt t B BS SP PT T a an nd d N NP PT T B B2 2 a ap pp pl li ie es...

Страница 54: ...P Pa ag ge e 5 53 3 5 6 Typical Basic Pump Build RTP20 Shown...

Страница 55: ...EL GAS FROM SUCTION LINE PUMP CHAMBER INSUFFICIENT STATIC SUCTION HEAD RAISE PRODUCT LEVEL TO INCREASE STATIC SUCTION HEAD PRODUCT VISCOSITY TOO HIGH DECREASE PUMP SPEED INCREASE PRODUCT TEMPERATURE P...

Страница 56: ...P Pa ag ge e 5 55 5 5 8 RTPTM Service History Pump Serial No Date Comments...

Страница 57: ...ag ge e 5 56 6 5 9 Notes The information contained in this document is correct at time of print but may be subject to change without prior notice The latest updated copies are available from our webs...

Страница 58: ...N23 6PT United Kingdom Phone 44 1323 509211 Fax 44 1323 507306 E mail wright eu idexcorp com Wright Flow Technologies Inc 406 State Street Cedar Falls Iowa 50613 U S A Phone 319 268 8013 Fax 803 216 7...

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