installation, operation and maintenance · pdf fileinstallation, operation, and maintenance...

Installation, Operation

and Maintenance Manual

3AV 1 to 3AV 430

Table of Contents

3AV Close-Coupled Liquid Ring PumpInstallation, Operation, and Maintenance Manual

1. General.......................................................................................................................................................1.1 Application Fields........................................................................................................................................1.2 Performance Data.......................................................................................................................................

2 Safety..........................................................................................................................................................2.1 Marking of Information in the Operating Instructions...................................................................................2.2 Qualification and Training of Personnel.......................................................................................................2.3 Risks Resulting from Ignoring the Safety Information.................................................................................2.4 Safety-Conscious Working..........................................................................................................................2.5 Safety Information for the Operator/User....................................................................................................2.6 Safety Information for Maintenance, Inspection and Assembly Work.........................................................2.7 Unauthorized Modification and Manufacture of Spare-Parts.......................................................................2.8 Unauthorized Operating Methods................................................................................................................

3 Transportation and Storage.....................................................................................................................3.1 Transportation.............................................................................................................................................3.2 Storage........................................................................................................................................................

4 Description of the Product.......................................................................................................................4.1 Construction................................................................................................................................................4.2 Function......................................................................................................................................................

5. Set up and Installation..............................................................................................................................5.1 Place of Installation.....................................................................................................................................5.2 Setting up the Unit.......................................................................................................................................5.3 Pipes...........................................................................................................................................................5.3.1 Suction Connection.....................................................................................................................................5.3.1 Discharge Connection.................................................................................................................................5.4 Electrical connection...................................................................................................................................5.5 Operation modes.........................................................................................................................................5.5.1 Partial Recirculation....................................................................................................................................5.5.2 Full Recirculation........................................................................................................................................5.5.3 Once-through..............................................................................................................................................5.5.4 Installation with gas ejector.........................................................................................................................5.6 Setting up of the unit...................................................................................................................................

6 Comissioning/Decomissioning................................................................................................................6.1 Preparing for operation................................................................................................................................6.2 Comissioning...............................................................................................................................................6.3 Adjustment of flow volume...........................................................................................................................6.3.1 Open circulation cooling according to Figure 2a..........................................................................................6.3.2 Closed circulation cooling according to Figure 3.........................................................................................6.3.3 Continuous cooling according to Figure 4a.................................................................................................6.3.4 For automatic systems according to Figure 2b............................................................................................6.4 Decommissioning........................................................................................................................................

7 Operation....................................................................................................................................................7.1 General........................................................................................................................................................7.2 Fresh water requirement.............................................................................................................................7.3 Cavitation: Causes and precautions............................................................................................................7.4 Contaminated operating liquid, deposits.....................................................................................................

8 Maintenance...............................................................................................................................................

9 Disturbance, Causes and Fault Removal................................................................................................

10 Service Value Limits..................................................................................................................................

11 Spare Parts List.........................................................................................................................................

333

333344444

555

555

5555666666777

101010101010101010

1111111212

12

13

14

15

1 General

The descriptions and instructions in theseoperating instructions refer to the standardpump versions.These operating instructions donot cover all possible design details nor vari-ants. Any illustrations and specifications inthese instructions are subject to technicalmodifications.

Note:Note: Opening up the pump invalidates anywarranty claim.

1.1 Application Fields

Airtech liquid ring vacuum pumps can be usedfor all gases, if the material chosen is chemi-cally resistant both against the gas and the

Service value limits see chapter 10.

1.2 Performance Data

Besides the operating data, the name plate ofthe pump shows the pump type, pump sizeand pump number, which have to be specifiedfor any queries, supplementary orders andespecially for spare-part orders.

If you have any queries, please contact yoursupplier or the manufacturer.

2 Safety

These operating instructions contain basicinformation that must be considered at set-upand during operation and maintenance. Forthis reason, the commissioning engineer mustread the operating instructions before assem-bly and commissioning. The manual must alsobe available to the responsible person-nel/machine user at the pump's place of opera-tion at all times.

2.1 Imporatnt safety information in theOperating Instructions

(Safety sign according to DIN 4844-W8)

Warnings about electrical voltages are markedspecifically by the sign below:

(Safety sign according to DIN 4844-W9)

Safety information which, if ignored, can resultin danger to the pump and its functions areshown by the word

CAUTION

Information located directly on the pump, e.g.

• the arrow showing the direction of rotation

• the markings of the pipe connections

must always be observed and kept legible.

2.2 Qualification and Training ofPersonnel

The operating, maintenance and assemblypersonnel must be appropriately qualified forthe work they carry out. The client must pre-cisely outline the area of responsibility of thepersonnel, and monitor their duties.

If said personnel are not suitably qualified, theymust be trained and instructed. If necessary, themanufacturer/supplier can carry out trainingcourses on behalf of the operator of the pump.The operator must also ensure that all personnelhave read and fully understood these operatinginstructions.

2.3 Risks Resulting from Ignoring theSafety Information

Ignoring the safety information may lead tohazards for the people involved as well asendangering the environment and the pump.

OPERATING INSTRUCTIONS

3

ring liquid. The pumps will work efficiently up to33 mbar with water as the ring liquid at an inlettemperature of 15° C. When using differentoperating liquids, the characteristic curves willchange (e.g. different physical properties of thegas or the operating liquid, any other additionalliquid added, or delivery of gas-steam mixtures).

In addition to the safety information included inthis section, there is additional safetyinformation throughout the manual; pleaseread it carefully.

This manual contains safety warnings regardingpossible hazards to personnel. This informationis marked by the symbol shown below:

The non-observation of the safety informationshall invalidate all claims for damages incl.compensation for damages.

In individual cases, the following dangers, forexample, may result from ignoring safety infor-mation:

• Failure of important pump/system func-tions.

• Failure of specified maintenance andcorrective maintenance methods.

• Endangering persons by electrical, me-chanical and chemical reactions.

• Endangering the environment by leakageof dangerous materials.

2.4 Safety Conscious Working

Observe the safety information listed in theseoperating instructions, in addition to existingnational accident prevention legislation as wellas any internal working, operating and safetyregulations applicable in the operator's plant.

2.5 Safety Information for the Opera-tor/User

•

• Guards for moving parts (e.g. coupling)may not be removed while the pump isrunning.

• Leakages (e.g. from the shaft sealing) ofdangerous material (e. g. explosive, poi-sonous or hot ) must be discharged with-out causing any danger for persons or theenvironment. Legal regulations have to beobserved.

• Dangers resulting from electrical energymust be excluded.

2.6 Safety Information for Mainte-nance, Inspection and AssemblyWork

The operator must ensure that all mainte-nance, inspection and assembly work is car-ried out by authorized and qualified specialists,who are adequately informed having thor-oughly read these operating instructions.

•

• Pump units which deliver media hazard-ous to health, must be decontaminated.

• Directly after completion of work, all safetyequipment and guards must be refitted orreactivated.

•

2.7 Unauthorized Modification andManufacture of Spare-Parts

2.8 Unauthorized Operating Methods


4

The pump is only guaranteed to work properlyif operated in accordance with the instructionsin Section 1.1 of this manual. Airtech will notbe responsible for any damages caused byimproper operation of the pump.

The unit meets all current technical specificationsand was manufactured according to standardizedsafety regulations (EN 292).

Failure to follow the instructions in thismanual will invalidate any warranty claims.

If excessively hot or cold parts of the pumpare exposed, the customer must installguards to ensure that these parts cannot betouched.

The pump must be shut down completelybefore any work can be done on the unit.The procedure for shutting down the pumpdescribed in the operating instructions mustalways be observed.

Follow all instructions in the sectionon Comissioning (Section 6.2) beforerestarting the equipment.

Please consult the manufacturer beforeattempting to modify or alter the unit. Onlyspare parts and accessories authorized bythe manufacturer should be used in the unit.Use of spare parts or accessories from othermanufacturers will invalidate any warrantyclaims.

3 Transportation and Storage

3.1 Transportation

3.2 Storage

4 Description of the Product

4.1 Construction

Airtech liquid ring vacuum pumps of the3AV type are closed coupled pumps.

The pump is of simple, robust construction.

4.2 Function

The liquid ring rotates inside the working areaeccentrically to the shaft. The impeller trans-mits the drive performance by the circulatingliquid ring as compression power to the gas tobe delivered. This produces low pulsationcompression.

The service liquid - normally water - must beadded and cooled continuously. This dissi-pates the resulting compression heat and addsliquid to the ring, since part of the liquid iscontinuously dissipated along with the gas on

the pressure side. The liquid can be separatedfrom the gas in a discharge separator at-tached.

5 Set up and Installation

CAUTION

5.1

5.2 Setting-up the Unit

5.3 Pipes

5

The unit must be handled properlyduring transportation. For pumps with abase plate and motor, do not suspend thepump from the ring loop on the motor.

When not in use, The unit should be storedin a dry environment and covered to ensurethat it is free of any dirt or debris.

The motor also serves as a pump shaft.The shaft sealing is effected by a singleacting mechanical seal

Failure to observe all safety guidelineslisted in this section will invalidate anywarranty claims.

Installation Location

Always install the unit in an area where thepump is easily accessible.

The pump is supplied with suction and dischargeconnections for the operating liquid which aresealed to avoid contamination from any foreignsubstances. It is recommended that you do notremove the seals until the pipes are fitted.


The vacuum pump must be attached to acompletely flat base plate. If low vibration run-ning is desirable, the unit should be fixed to avibration insulated foundation.

The mounting position must be horizontal. Thesuction and discharge fitting of the pump shouldbe positioned vertically facing upward or horiz-ontally to the right (view towards pump). Thehorizontal discharge connection is situatedfrom the bottom. In order to keep the pumpfrom draining out when not in use, the dischargepipe should be raised up to the middle of theshaft.

Figure 1: Function


6

5.3.1 Suction Connection

CAUTION

5.3.2 Discharge Connections

5.4 Electrical connection

Electrical connection of the pump must becarried out by skilled personnel only!

The connecting diagram of the motors isshown inside the terminal box cover.

CAUTION

5.5 Operation modes

5.5.1

(standard operation under normal conditions)

5.5.2

The heat exchanger W should be sized todissipate about 85% of the motor power andany possible heat or condensation. The heatexchanger W may be omitted if the vacuumpump will be run for a short period of timeand if the liquid in the system cools down toambient temperature during the period before itis restored.

The diameter of the suction, discharge and oper-ating liquid pipes should be equal to thecorresponding pump connections. For longerpipes, larger internal diameters should be con-sidered.

In order to avoid damage to the mechanicalseal, the pump must be operated in theproper direction of rotation.

Pump piping should be installed without strain.A flex connector should normally be providedfor the suction and discharge.

Before starting the pump check the integrity ofthe piping carefully.

A non-return valve must be mounted in thesuction pipe in order to avoid it being filled withoperating liquid and avoid a pressure drop in thevacuum system.

If an isolation valve is installed in the suctionand if the pump is run when this shut-off deviceis closed, cavitation will occur. This will damagethe pump during a longer working period.

If a shut off valve is installed in the discharge,care must be taken that the pump will not beoperated or kept running when the dischargevalve is closed.

Apart from proper electrical installation (takinginto account appropriate guidelines and regula-tions) check the pump's direction of rotation toensure it matches the arrow on the pump casing.

Always install a magnetic motor starter toprotect the pump motor.

Operating without a protective motor starter onthe input side that is properly set (see nameplate for currents) shall invalidate any claimsfor compensation of damages. The proper flowdirection of the gas is marked by arrows on thepump casing.

The set-up is per Figure 2a (page 8) The oper-ating liquid B consists of clean liquid F andcirculating liquid U. Liquid leaves the liquidseparator as discharge liquid A through theliquid discharge UA. The pressure of cleanliquid should exceed max. 0,2 bar the pressureat the pump discharge nozzle in the liquid sep-arator.

Partial Recirculation

Full Recirculation

Closed circulation cooling should be used foroperating liquids that may be corrosive orhazardous or where highly combustible gasesare delivered. The set-up is per Fig. 3 (page 8).At connection UA a shut-off device will beattached. The operating liquid B consists ofcirculation liquid U. In the circulating pipe IU, aliquid pump PB has to be mounted. If the vacuumpump is to run for more than 5 minutes withoutwithout sufficient pressure difference betweensuction and discharge.


7

5.5.3 Once-Through

5.5.4 Installation with gas ejector

In order to achieve certain operating points thevacuum pump will be provided with a gasejector pump.

5.6

The liquid separator is mounted to the dis-charge nozzle of the pump..

Setting up schema

Descriptions to Figures 2a-5

mB Mano vacuum metermD manometer A discharge liquidB operating liquidF clean liquidK cooling liquidT expanding agentU circulating liquidN liquid levelS medium suction sideD medium discharge sideP liquid ring vacuum pump

PB circulating pumpa liquid separatorb clean liquid containerg gas ejector pumph ventilating devicew heat exchangerVF shut-off valveVK shut-off valveVS non-return valverB regulating valverF regulating valverF1 regulating valve (float valve)rF2 regulating valve (thermostatic)rF3 regulating valve (reducing regulator)IB pipe for operating liquidIF pipe for clean liquidIG pipe for cavitation protectionIK pipe for cooling liquidIS suction pipeID discharge pipeIU circulating pipemt thermometermt1 temperature probe to rF2

UA liquid dischargeUB connection for operating liquidUC cavitation protectionUV connection for control valveUS connection for suction pipeDU connection for discharge pipeUU connection for circulating liquidUe dischargeUse connection for draining pipeUsn connection for sensorUL connection for ventilation device

Continuous cooling will occur if sufficient liquidis available that is not being recycled as oper-ating liquid.

The unit is to be set-up according to Figure 4a.The connection UU will be sealed. The operatingliquid B consists of clean liquid F. The requiredpressure of clean liquid should not considerablyexceed 0 bar (atmospheric pressure).

If the clean liquid pressure is fluctuating consid-erably (from time to time an over pressure of 0,2bar will be exceeded), it is useful to provide apressure-reducing valve RF3 (Figure 2b) or leadthe clean liquid into a container b with float valveRF1.The pump primes the operating liquid B outof this container (Figure 4b). The level of theliquid should be in the middle of the shaft.

In situations where the gas and the liquid do nothave to be discharged separately, the liquidseparator may be omitted. It would then besufficient to install a pipe ID, leading to a dischargesink.

A side-mounted liquid separator has to beinstalled so that the liquid discharge is at thesame level as the shaft.

Setting up the unit

Select an operating mode that will ensure thatas little fresh liquid as possible is needed.


8

Figure 2a: Partial Recirculation Figure 4a: Once-Through

Figure 2b: Thermost-controlledliquid controller

Figure 4b: Container with float valve

Figure 3: Full recirculation Figure 5: Operation with gas ejector

(° 3,2)

Connections UB UL Ue UV Connections UB UL Ue UV

3AV1 G1/8" G1" G1/2" G1/2" G1/2"

3AV63AV8

3AV30/55

3AV95/155

3AV255

G1/8" G1/8"

G1/8"

G1/4" G1/4" G1/4"

G1/2" G1/2" G3/8" G3/8"

G1/2" G1/2" G1/2" G1/2"

3AV1

3AV63AV8

3AV95-155

3AV30/55

3AV255 3AV330/430

3AV330/430


9

Figure 6: Position of connection for the process liquid

Uc

Uc

Uc

Uc

6 CommissioningDecommissioning

6.1 Preparing for operation

For commissioning fill the pump with operating

CAUTION

3AV1-3AV55

In order to control the liquid level N, an addi-tional valve in the operation liquid pipe may be

3AV95-3AV430

In order to control the liquid level N a valve

6.2 Commissioning

• Switch-on motor, open shut-off valve VF

or VK.

•

6.3 Adjustment of flow volume

6.3.1

6.3.2

While the vacuum pump is running adjust the

6.3.3

Open shut-off valve VF while the pump isrunning and adjust regulating valve rF, so that

6.3.4

6.4 Decommissioning

Close shut-off device VF VK, switch-offmotor,


10

regulating valve rF so the pressure at the vacuumgauge mB is no more than 6 inces Hg Vacuum.

If the decommissioning is to allow pumpmaintenance, lock out the pump from itspower source.

liquid up to the middle of the shaft. This may beeffected through the suction, discharge, or oper-ating liquid pipe.

Dry running of the pump must be avoided

Check the direction of rotation. Wrongdirection of rotation can lead to damage ofthe mechanical seal.

required (see Figure 4b).

should be connected to the connection UV. Anautomatic discharge valve at this connectioncontrols and regulates the liquid level auto-matically (Figure 2a/4a).

When starting operation with a closedsuction open the relief valve before andclose it after having reached the operatingspeed.

Partial Recirculation according toFigure 2a

Open shut-off valve VF while the pump is runningand adjust regulating valve rF so the pressureat vacuum gauge mB is about 0 psig (max 3 psig).Block the regulating valve rF in this position.Maximum temperature of operating liquid see1.1. The vacuum pump will draw the quantity ofclean water as indicated in Figure 7 (page 12).

Full Recirculation (Figure 3)

The amount of cooling liquid K will be adjustedthrough the regulating valve rK at open shut-offdevice. The regulating valves should be blockedin this position.

Once-Through (Figure 4a)

the pressure at vacuum gauge mB is about 0 psig(max 3 psig). The vacuum pump draws thequantity of clean water, as indicated in Figure 7.

Thermostat Controlled (Figure 2b)

Set the desired temperature of operating liquid.The thermostatic regulating valve rF2. Thepressure reducing regulator rF3 should beadjusted so that the pressure at vacuum gaugewill not exceed 0 psig.

orand open ventilation device h, if applicable.

When using the pump for hazardous gases,it must be rinsed thoroughly before opening.In order to prevent easily flammable gasescausing an explosisive air/gas mixture, thepump should be purged with inert gasbefore opening and before restarting.

In case of danger of frost or danger ofcongealing of the ring liquid, pump andliquid separator should be fully drained.This is also applicable for a longer shut-down period.

11

7 Operation

7.1 General


11

When handling air and other inert gases water isnormally used as the ring liquid. Ring liquidsother than water may also be used in order tomeet process requirements. The ring liquid mustbe free of foreign matter which could erode thecasing. Use filters as necessary to keep thepump free from contaminants.

At the desired operating temperatures, the kin-matic viscosity should be 4 mm 2/s; higher visco-sity in the operating liquid may require a largermotor.

The vapor pressure of the ring liquid should beno more than 16 mbar during vacuum operationat working temperature; higher vapor pressuresreduce the suction capacity and final vacuumfrom those indicated in the performance tablesand curves. When ring liquids other than waterare used, the performance data of the pumpmust be confirmed by Airtech.

Condensation of steam in the vacuum pumpmay cause cavitation and consequently destroyparts of the pump. Therefore, condensationbefore the vacuum pump is preferable (injectioncondenser, surface condenser, etc.) In somecases the condensate arising can also be drain-ed into the vacuum pump. For large quantites ofcondensate, a separate liquid pump may haveto be involved.

The published suction capacity will be reachedat an operating temperature of 15° C. Operationat higher temperatures will cause a reducedsuction capacity.

For vacuum operation with suction pressuresbelow 130 mbar, care should be taken that theoperating water temperature is not below 10°Cto avoid freezing of the suction nozzle.

7.2 Fresh Water Requirement

For once-through operation, a fresh waterquantity according to Figure 7 is necessary. Thefresh water requirement for partial recirculationis also shown in Figure 7. The temperaturedifference ∆t (temperature of operating waterminus temperature of fresh water) must be stip-ulated. When the operating temperature is toohigh for the desired vacuum level, cavitationwill occur.

For operation at other rotational speeds, thefresh water requirement is converted proportion-ally with the change of speed.

For full recirculation systems, the amount ofcirculating liquid is the same as that for partialrecirculation systems.

Example: 3AV 55

In case of an inlet pressure of 130 mbar the fresh water requirement at continued cooling FD = 0,37 m3/h, and

the fresh water requirement at circulation cooling and a temperature difference Dt = 5°C FU = 0,15m3/h

7.3 Cavitation: Causes and avoidance

CAUTION

7.4 Contaminated operating liquid,deposits

ISV

ISV


12

3AV 430

3AV 330

3AV 255

3AV 95-155

3AV 55

3AV 6/30

Note: 1 m3/nr water =4.4 gpm

When a shut-off valve is installed in the suction lineand the pump is run with the isolation valve closed,cavitation will occur. Consequently parts of the pumpcan be damaged if the pump is run for a long period.

If mainly steam is handled it will condense duringcompression, causing cavitation. In order to avoidcavitation, a small quantity of air or other dry gasshould be added at suction side. This can be accom-plished by:

• A vacuum relief valve h,

• Use of cavitation protection; UC can delay damagedue to occasional cavitation.

• Through a connecting pipe (with nozzle) to theliquid separator a.

The use of a gas ejector also avoids cavitation(see page 8).

In the event that fine-grained dust or dirt gets intothe pump, it can be rinsed out through theconnections USE during the operation from timeto time, in order to avoid wear-out.

When large quantites of dust or dirt will be enc-ountered, the discharge should be cleaned morefrequently. When the pump stops it will beemptied. In this case the pipe has to be closedbfore switching off the pump or the pump has tobe refilled to the middle of the shaft beforerecomissioning it.

When operating the pump with water, the hard-ness of the water has to be strictly observed, asvery hard water leads to formation of scale inthe pump. In such cases the required water hasto be treated (softened) before using it as ringliquid or the pump has to be opened from timeto time and the deposits have to be removed.As the impurities (rust, dirt, etc.) are gathered inthe liquid separator, it should be cleaned at thesame time.

8 Maintenance

Due to their simple and robust construction, thevacuum pumps in closed coupled version needlittle maintenance. Any maintenance work need-ed will normally result from the operatingconditions.

Figure 7

9

Disturbance Cause Actionwhen running with lower suctionpressure than indicated (also atclosed suction side) or when thepercentage of steam in themedium is too high, a gratingnoise is caused

remedy see 7.2

pump runs loudly

quantity of fresh liquid F is toohigh

liquid in medium D:check position of regulatingvalve, adjust it

leakage in system shut-off device is openedincorrect: check system, sealthe leakages

quantity of operating liquid toosmall

check pipes and position ofregulation valve, adjust it

temperature of operating liquid istoo high

mechanical seal is leaking change mechanical seal

pump does not reach thevacuum capacity specified(pressure/volume)

quantity of discharge liquid A istoo low

check discharge pipe on flow-

corrosion between rotor andcasing

eliminate by use of anti-rustliquid

ice in pump ring liquid is congealed:heat it carefully, thaw it

pump is blocked

impurities, foreign bodies inpump

disassemble and clean thepump

quantity of operating liquid toohigh

adjust the regulating valves

power input of pump is toohigh

frictions between impeller andinter casing


13

Fault Chart

Gas or liquid channels areclosed

disassemble the pump andclean the channels

density or viscosity of liquidtoo high

the performance data refers towater (1000 kg/m3 , 1 mm2/s),higher density or viscosityrequire higher power input.Different operating liquid orbigger motor should beconsidereddisassemble the pump, cleanit and adjust the clearances

The characteristic curves referto water with 15° C ring liquidso that at higher operatingliquid a reduction of thevacuum and also the suctioncapacity will be caused.(Reduce the temperature bysuitable means)


14

10 Service Value Limits

3AV

pump size 1 6 - 430

inlet pressure [mbar] 75 33

pressure differencesuction- / discharge side [mbar]

200

1030

200

1100

compression pressure [mbar] 1100 1300

gas entry temperature

dry 200°C

vapour saturated 100 °C

3AV1-55 3AV95-420speed [min-1 ]

50 Hz [60Hz] 2800 [3400] 1450 [1750]

service liquid

temperature 10 °C

60 °C

density 1200 kg/m3

viscosity 4 mm2/s

overpressure for water pressuretest

3 bar

All pressures indicated in mbar are absolute pressuresAll values are applicable for a service liquid temperature of 15 °C.


15

047101137230411441550550.1550.2561561.1598710

Mechanical SealPump CasingInter-casingImpellerJoint RingShaft Seal HousingDiskDiskDiskGrooved PinGrooved PinSheetSound Damper

746800901901.1902903903.1906920920.1940950970

FlapperMotorHexagon Head Cap ScrewHexagon Head Cap ScrewStudScrewed PlugScrewed PlugImpeller ScrewHexagon NutHexagon NutKeySpringShield

3AV 30/55

3AV 30/55 Parts


16

047101137230411411.1412441524550550.1550.3561561.1598

Mechanical SealPump CasingInter-casingImpellerJoint RingJoint RIngO-RingShaft Seal HousingShaft Protection SleeveDiskDiskDiskGrooved PinGrooved PinSheet

746800900901901.1901.3903903.1903.2906920920.1940950970

FlapperMotorScrewHexagon Head Cap ScrewHexagon Head Cap ScrewHexagon Head Cap ScrewScrewed PlugScrewed PlugScrewed PlugImpeller ScrewHexagon NutHexagon NutKeySpringShield

3AV 95/130/155

3AV 95/130/155 Parts


17

047101137230411411.1412441550550.1550.2562598

Mechanical SealPump CasingInter-casingImpellerJoint RingJoint RingO-RingShaft Seal HousingDiskDiskDiskCylindrical PinStop Sheet

746800901901.1901.2903903.1904906914920940970

FlapperMotorHexagon Head ScrewHexagon Head ScrewHexagon Head ScrewScrewed PlugScrewed PlugSet ScrewImpeller ScrewScrewHexagon NutFeather KeyShield

3AV 255

3AV 255 Parts


18

047101137230400411411.1412441524550550.1550.2550.3561562598746

Mechanical SealPump CasingInter-casingImpellerFlat GasketJoint RingJoint RingO-RingShaft Seal HousingShaft Protection SleeveDiskDiskDiskDiskGrooved PinCylindrical PinStop SheetFlapper

800900901901.2901.3901.4902903.1903.2903.3904906920920.1931940970

MotorScrewHexagon Head ScrewHexagon Head ScrewHexagon Head ScrewHexagon Head ScrewStudScrewed PlugScrewed PlugScrewed PlugSet ScrewImpeller ScrewHexagon NutHexagon NutLocking WasherFeather KeyShield

3AV 330/430

3AV 330/430 Parts

For Further Information Please contact:

150 South Van Brunt St.Englewood, NJ 07631Tel: 1-888-222-9940Fax: 201-569-1696

[email protected]

2211 Newmarket ParkwayMarietta, GA 30067Tel: 770-690-0700Fax: 770-690-0709

[email protected]

SOUTH WEST

42 Digital Drive #9Novato, CA 94949Tel: 415-382-9000Fax: 415-382-9700

[email protected]

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