renova vacuum solutions - madan technologies · instructionsor by modifications to the system or...

--2RV SeriesOperating Instructions

Liquid Ring Vacuum Pumps

EnglishEnglishEnglishEnglish translationtranslationtranslationtranslation ofofofof originaloriginaloriginaloriginal operatingoperatingoperatingoperating instructionsinstructionsinstructionsinstructions

DocumentationIt is imperative to read the operating instructions prior tocommissioning!

This document as well as all documents included in the

appendix is not subject to any update service!

Subject to technical changes

RENOVA VACUUM SOLUTIONS

Operating Instructions

2RV SERIES WATER RING VACUUM PUMP

IndexIndexIndexIndex

1111 ImportantImportantImportantImportant basicbasicbasicbasic information...................................1information...................................1information...................................1information...................................1

1.1 Statement......................................................1

1.2 Warranty and liability......................................1

2222 SafetySafetySafetySafety ......................................................................2......................................................................2......................................................................2......................................................................2

2.1 Staff safety......................................................2

2.2 Working condition safety.................................2

2.3 Safety related terms........................................2

3333 DesignDesignDesignDesign andandandand functioning..........................................3functioning..........................................3functioning..........................................3functioning..........................................3

3.1 General description.........................................3

3.2 Functional principle.........................................3

3.3 Mechanical structure.......................................3

3.3.1 Sectional structure………………………3

3.3.2 2RV2/2RV5 series..........................................4

3.3.3 2RV6 series...................................................4

4444 ScopeScopeScopeScope ofofofof application.............................................5application.............................................5application.............................................5application.............................................5

4.1 Application……….............................................5

4.2 Ultimate vacuum...............................................5

4.3 Maximum discharge pressure...........................5

4.4 Gas and vapor to be pumped............................5

4.5 Operating liquid.................................................5

5555 Set-upSet-upSet-upSet-up andandandand connection.........................................6connection.........................................6connection.........................................6connection.........................................6

5.1 Transport and fixing..........................................6

5.2 Pipe connection................................................6

5.2.1 Discharge port flange……………………………6

5.2.2 Suction port flange………………………………6

5.2.3 Recommended mode of the operating liquid

connection………………………………………..7

5.3 Supply mode of operating liquid…..….......…….7

5.4 Separator………………………...……….………7

5.5 Check valve………………………………………7

5.6 Air ejector…………………………………………8

6666 Operation.................................................................9Operation.................................................................9Operation.................................................................9Operation.................................................................9

6.1 Preparation.......................................................9

6.2 Starting up and shutting down……………..…..9

6.3 Draining

off........................................................9

6.4 Prolonged shutdown period............................9

7777 Maintenance..........................................................10Maintenance..........................................................10Maintenance..........................................................10Maintenance..........................................................10

7.1 Flush the pump.............................................10

7.2 Lubrication....................................................10

7.3 Storage…………………………………………10

7.4 Troubleshooting.………………………...….…10

8888 TechnicalTechnicalTechnicalTechnical data........................................................12data........................................................12data........................................................12data........................................................12

8.1 Technical data (380V 50HZ)……..............12

8.1.1 Technical parameter…………………..……..12

8.1.2 Performance curve……………………...……13

8.1.3 2RV2 series…………………………………...14

8.1.4 2RV5 series…………………………………...15

8.1.5 2RV6 series…………………………………...17

8.2 Technical data (380V 60HZ).....................19

8.2.1 Technical parameter………….……………...19

8.2.2 Performance curve………………………..…20

8.2.3 2RVN-060/061/070/071

(with explosion-proof motor )………….……21

8.2.4 2RVN-110/111/121/131/161.........................22

8.3 Saturated vapor pressure in different

temperature………………………………..…24

2RV Series Water Ring Vacuum Pumps 1

1.21.21.21.2 WarrantyWarrantyWarrantyWarranty andandandand liabilityliabilityliabilityliabilityThe manufacture does not accept liability for damage to

persons, animals, objects or incomplete observance of

the safety precautions included in these operating

instructions or by modifications to the system or use of

improper spare parts.

Warranty and liability claims arising from physical injury

and material damage are excluded if one of the following

conditions applies:

-- improper use of the liquid ring vacuum pump.

-- improper mounting, commissioning, operation and

maintenance of the liquid ring vacuum pump.

-- operation of the liquid ring vacuum pump despite

defective safety devices.

-- non-observance of the notes in the operating

instructions.

-- unauthorized constructional changes the liquid ring

vacuum pump.

-- inadequate maintenance, repair and servicing

measures.

-- catastrophic events caused by foreign bodies or acts

of natural.


1 Important basic information1111....1111 SSSSttttaaaatttteeeemmmmeeeennnnttttThese operating instruction form part of the technical

documentation of the system, and are addressed to the

person in charge of the plant, who is obliged to provide

them to the staff responsible for the system set-up,

connection, operation and maintenance.

He must ensure that all information included in the

operating instruction and the enclosed documents have

been read and understood.

The operating instruction is the exclusive copyright of

SSS

Any company or personal can not duplicate, transfer it

to third party, or make illegal business use. Any

operation on the pump should be in accordance with the

instruction.

2 Safety

2.12.12.12.1 StaffStaffStaffStaff safetysafetysafetysafety



-- The operator( including electricians and the pump

operator) must be trained before working on the pump,

and under the supervision of technically qualified staff.

-- The operator must wear protective equipment like

helmet, hairnet and gloves.

-- Independent operating is not allowed.

-- Guards for protection against contact with hot, cold

and moving parts must not be removed during operation.

-- Only operate the pump in a technically flawless

condition and in accordance with the provisions, safety

precautions and warnings included in these operating

instructions.

-- Notes attached to the pump must be observed and

kept legible, e.g. arrows indicating the direction of rotation.

-- The medium to be pumped and operation liquid may

be harmful to environment, in case of which, please

collect and handle them in an environmental friendly way.

-- In case of defects having safety implications: shut

down the aggregate immediately and consult the in

charge to rectify the defect.

2.22.22.22.2 WorkingWorkingWorkingWorking conditionconditionconditioncondition safetysafetysafetysafety-- The pump can be safely applicated in transmitting dry

or wet gases, but the medium to be pumped and

operation liquid are not to be explosive, inflammable,

aggressive or toxic.

-- Pumps for flammable, exposable poisonous or

aggressive media are supplied in accordance with

customer specifications.

-- If the pump is used in gaseous environment like gas

and coal dust , the mating motor must be accorded with

relevant requirements of coal industry safety.

When the pump is used in coal industry, explosion-proof

motor of corresponding degree must be mating adopted.

V-belt should be flaming retarding and antistatic.

Monitoring equipment and gas pump pipeline system

should be installed.

-- Protection and safety facilities must be equipped to

make sure regular working conditions of vacuum pump.

2.32.32.32.3 SafetySafetySafetySafety relatedrelatedrelatedrelated termstermstermsterms

The signal terms WARNING, CAUTION, and NOTE: are

used in this instruction to point out particular dangers or

unusual information which must be particularly noted. It is

equally imperative, however, to comply with other notes

on transport, assembly, operation and maintenance with

technical to avoid faults which, in turn, might directly or

indirectly result in severe personal injury or property

damage.

Owing to their functional characteristics, such equipment

may cause serious personal injury or material damage

when improperly used, wrongly operated, insufficiently

serviced, or in the event of unauthorized interventions by

unqualified individual. This is particularly true of occasions

when transporting hot, high-pressure or harmful media.

Mark of coal industry safety production

NOTENOTENOTENOTE

CAUTIONCAUTIONCAUTIONCAUTION

This symbol is labeled on the pump to indicate

potentially hazardous situation, which may cause

death, physical injury or material damage.

3 Design and functioning3333....1111 GGGGeeeennnneeeerrrraaaallll ddddeeeessssccccrrrriiiippppttttiiiioooonnnnThe pumps of the 2RV series are horizontal, single-stage



liquid ring vacuum pump with radial inlet and outlet.

The electrical drive is modularly screwed to the pump. A

maintenance-free mechanical seal in the shaft sealing

casing is used to seal the shaft.

The 2RV series pump is able to deliver low liquid flow

rates. The discharged operating liquid can be re-used

when using a separator.

3333....2222 FFFFuuuunnnnccccttttiiiioooonnnnaaaallll pppprrrriiiinnnncccciiiipppplllleeee

Fig. 1 Functional principle of liquid ring vacuum pump

1. Pump casing 5. Oval pressure opening

2. Air inlet 6. Liquid ring

3. Impeller 7. Water inlet opening

4. Air outlet

·The pump is operated in accordance with the liquid ring

principle.

The impeller is positioned off-centre in the cylindrical

pump casing, and we name the eccentric distance as “e”

for short, as shown in Fig 1. The impeller transfers the

drive power to a liquid ring, which forms concentrically to

the casing when the pump is started.

The gaseous medium remaining in the casing is

distributed around the impeller due to the lower density in

the hub area. As the impeller is positioned off-centre to

the casing, the available space for the gas between the

surface of the liquid and the hub becomes crescent-

shaped.

This way, the remaining space for the gas between the

blades expands and shrinks during each rotation.

The arrangement of suction and pressure openings in the

separate plate allows for the suction, compression and

discharge of gas. The liquid both serves the sealing

between the individual impeller chambers and the

absorption of heat produced during compression.

·The pump must be permanently supplied with operating

liquid during operation as a portion of the liquid

continuously escapes from the pump together with the

gas. The discharged operating liquid can be separated

from the gas by means of a downstream separator and

re-used.

3.33.33.33.3 MechanicalMechanicalMechanicalMechanical structurestructurestructurestructure3.3.13.3.13.3.13.3.1 SectionalSectionalSectionalSectional structurestructurestructurestructure

Fig. 2 Sectional drawing

1. Pump cover 4. Water ring

2. Air outlet 5. Impeller

3. Air inlet

3333....3333....2222 2222BBBRVVVV2222////2222BBBRVVVV5555 sssseeeerrrriiiieeeessss



Fig. 3 Mechanical structure of 2RV2/2RV5 series

1. Pump cover

2. Separating plate

3. Flat key

4. Impeller

5. Mechanical seal

6. Pump casing

7. Driving motor

3333....3333....3333 2222BBBRVVVV6666 sssseeeerrrriiiieeeessss

Fig. 4 Mechanical structure of 2RV6 series

1. Pump cover

2. Separating plate

3. Flat key

4. Impeller

5. Mechanical seal

6. Pump casing

7. Bracket

8. Driving motor

4 Scope of application



4.14.14.14.1 ApplicationApplicationApplicationApplication· The 2RV series are single-stage liquid ring vacuum

pumps. They are continuous running to form vacuum. It is

suitable for intake and discharge dry and humid gas which

are mainly non-flammable, non-corrosive gas and the

mixture of gas and vapour.

· According to different customer demands, pumps

dealing with flammable, explosive and poisonous media

can be supplied. Under such circumstance, the user

should take corresponding safety measures.

·Operating liquid is usually water.

·Media to be pumped:

-- Dry and wet gases witch are not explosive,

inflammable, aggressive or toxic

-- Air or air-steam mixtures

-which are free of solids

-which contain small amounts of light suspended

matters.

·Stainless steel pump is suitable for occasions asking for

strict demands of corrosion-proof and sanitation.

·2RV series pumps create low vacuum, and the ultimate

vacuum is decided by saturated vapour pressure of

operating liquid.

4.24.24.24.2 UltimateUltimateUltimateUltimate vacuumvacuumvacuumvacuum·Ultimate vacuum depends on operating temperature and

operating liquid type.

·Please pay attention to the following aspects:

-- If the pump does not have anti-cavitation protection,

the suction pressure should not be lower than 80mbar,

which is in order to avoid causing cavitation in the pump

when the water is 15℃ and the dry air pumped is 20℃. -

- Depending on operating saturated vapour pressure,

the higher the temperature, the higher the allowed lowest

suction pressure.

-- When the pump is continuously operating, it can

make suction until the ultimate vacuum.

-- The higher the temperature is, the lower the suction

capability is.

NOTENOTENOTENOTE

Long term running under minimum suction pressure is

harmful to the pump!

4.34.34.34.3 MaximumMaximumMaximumMaximum dischargedischargedischargedischarge pressurepressurepressurepressureUsing standard operating liquid all the 2BV vacuum

pumps’ maximum discharge pressure is 1300mbar.

4.44.44.44.4 GasGasGasGas andandandand vaporvaporvaporvapor totototo bebebebe pumpedpumpedpumpedpumped·The medium to be pumped (gas or the mixture of the gas

and vapor) containing solid particles is not allowed, but

containing little suspended matter or liquid is permissible.

·When pumping extremely hot gas or vapor above 80℃, it

is recommended to use double operating liquid volume of

the standard flow or use pre-condenser.

4.54.54.54.5 OperatingOperatingOperatingOperating liquidliquidliquidliquid·Operating liquid must be replenished continuously when

pump operating.

· It is not allowed to contain solid particles (e.g. sand

etc.), and a filter may be fixed when necessary.

·To make sure enough operating liquid supply, the fed

liquid pressure should be 1 bar higher than the suction

pressure.

· Operating liquid is expelled together with the gas

pumped.

5 Set-up and connection5.15.15.15.1 TransportTransportTransportTransport andandandand fixingfixingfixingfixing



·2RV vacuum pump is installed horizontally on surface,

and mounted with foundation bolts through bolt holes,

(without base frame).

· When slinging and transporting the pump, it is

recommended to hook both the sling bolt on the motor

and the bolt hole in the suction flange.

Fig. 5 Lifting the pump

WARNINGWARNINGWARNINGWARNING

Risk of death or contusions from falling goods to be

transported!

-- Select lifting gear in accordance with the total weight

to be transported.

-- Transport the pump in horizontal position only.

-- Do not stand under suspended loads.

5.25.25.25.2 PipePipePipePipe connectionconnectionconnectionconnection·To avoid foreign particle entering the pump, protecting

covers are added to all connection openings when

delivery and do not remove them before pipe connection

completed.

·The connection of pipes should not produce stress andsupports should be added on pipes.

5555....2222....1111 DDDDiiiisssscccchhhhaaaarrrrggggeeee ppppoooorrrrtttt ffffllllaaaannnnggggeeee2RV-E161: Flange 80ND 10-DIN

2501, Seal 80ND 6 DIN 2690;

2RV-E131/2RV-E121:

Flange 65ND 10-DIN 2501,

Seal 65ND 6 DIN 2690;

2RV-E110/2RE110:

Flange 50ND 10-DIN 2501,

Seal 50ND 6 DIN 2690;

5555....2222....2222 SSSSuuuuccccttttiiiioooonnnn ppppoooorrrrtttt ffffllllaaaannnnggggeeee

Similar to the discharge port flange, in order to prevent the

fixing residue dropping in, e.g. welding slag, it is

recommended to install a filter to the suction pipe in the

initial 100 hours.

Fig. 6 Pipe connection of cast iron material pump

1. Discharge port

2. Suction port

3. Anti-cavitations connection 3/8

4. Operating liquid connection 3/4

5. Water drainage 3/8

Fig. 7 Pipe connection of stainless steel material pump

1. Discharge port

2. Suction port

3. Anti-cavitation connection

4. Operating liquid connection 3/4

Flange connection DN15

5. Water drainage 3/8

5.2.35.2.35.2.35.2.3 TheTheTheThe recommendedrecommendedrecommendedrecommended modemodemodemode ofofofof thethethethe operatingoperatingoperatingoperating

liquidliquidliquidliquid connectionconnectionconnectionconnection



Fig. 8 Example of operating liquid connection

1. 2RV vacuum pump

15. Flow meter (optional)

16. Control valve

17. Solenoid valve (controlled by driving motor)

(motor starts up-the valve open)

(motor shuts down- valve close)

18. Bypass pipe globe valve

19. Filter (optional)

20. Feed pipe for operating liquid

5555....3333 SSSSuuuuppppppppllllyyyy mmmmooooddddeeee ooooffff ooooppppeeeerrrraaaattttiiiinnnngggg lllliiiiqqqquuuuiiiiddddIt is a connection to make sure enough operating liquid

supply, thus to guarantee minimum suction pressure. The

discharged liquid is expelled completely and meanwhile

flesh operating liquid replenished.

After filled with water in advance, 2RV vacuum pump can

work in the state of automatic water replenishing. Thus,

make sure operating liquid to a certain level when staring

the pump.

A. Operating liquid B. Operating liquid circulating

circulating pipeline pipeline (with separator)

Fig. 9 Supply mode of operating liquid

1. 2RV vacuum pump 2.Suction pipe

3. Vent valve (solenoid valve) 4. Check valve

6. Separator 7. Overflow port

12. Outlet pipe for operating liquid

20. Feed pipe of operating liquid

5.45.45.45.4 SeparatorSeparatorSeparatorSeparator·Separator is used to separate the operating liquid from

the expelled gas and allow part of it recycling to the pump,

without being cooled. In this way, replenishment of the

operating liquid can be reduced.

·Connecting pipes are supplied as accessory with the

separator.

·When anti-cavitation protection is needed, the protective

pipe is fixed, connecting separator and pump cover.

Fig. 10 Separator and cavitations protection

1. 2RV vacuum pump

6. Separator

20. Feed pipe of operating liquid

21. Operating liquid outlet connection

30. Steel pipe or hose

50. Anti-cavitations pipe

5.55.55.55.5 CheckCheckCheckCheck valvevalvevalvevalve·In order to prevent operating liquid from returning after

pump shutting down, a check valve is required to be

installed in suction pipe.

5.65.65.65.6 AirAirAirAir ejectorejectorejectorejector· Air ejector is installed in suction side under suction

pressure of 10~40mbar.

app:ds:solenoid%20valve

app:ds:solenoid%20valve



· It can obtain 10mbar vacuum by adding an air ejector

and will not increase power consumption.

· The seal gasket should be concentric with the

connection pipe in order to avoid running area reducing.

·The air ejector may function as restriction choke when

pumping container in pressure between 1000 and

100mbar.

NOTENOTENOTENOTE

The ejected gas (20℃, 1013mbar atmosphere) cannot

contain any water drop.

·In order to reduce draining time, a bypass pipeline can

be installed. (→Fig.11)

The bypass pipe should be closed before the air ejector

takes effect,.

The most suitable working condition to start up the air

ejector is 40mbar.

Fig. 11 Bypass pipe

6 Operation6.16.16.16.1 PreparationPreparationPreparationPreparation·If there’s globe valve on discharge pipe, make sure it is



open when pump starting up or shutting down.


Risk of material damage caused by dry running!

·Before operating, fill in the pump in advance via suctionport or discharge port.

-- Fill 2RV-E161 with 8 liter operating flow in advance; --

Fill 2RV-E131/121/111/110 with 3 liter operating flow in

advance.

or :

-- open the bypass valve about 20 seconds to ensure

operating liquid flowing into the pump (→ Fig8, Page6). Inspect discharge pipe and operating liquid supply pipe to

make sure the connection in good condition.

·Start up the pump instantly to check its rotating direction.

The gas in and out direction and the pump shaft rotating

direction are labeled as arrows on the pump.

·Compare the rotating direction of the motor fan and the

arrow direction on the back of the pump casing. If

necessary, the rotating direction of the motor can be

changed by changing the two wires.

6.26.26.26.2 StartingStartingStartingStarting upupupup andandandand shuttingshuttingshuttingshutting downdowndowndown·Start up the pump and check operating liquid flow. If

necessary, regulate liquid flow by the control valve

(→Fig8, 16). Volume flow meter (→Fig8.15) is used toobtain standard operating liquid flow.

· If the pump needs to be controlled automatically

(installed as Fig8 showing), the operating liquid flow is

controlled by solenoid valve(→Fig 8.17) which isgoverned by motor.

Pump operating ----valve opens

Pump shutdown ---- valve closes

· If the pump is not automatically controlled, followingsteps should be adopted:

-- Start up: start up the pump and then open the globe

valve (→Fig 8.17) rapidly.

-- Shut down: close globe valve (→Fig 8.17), and stop the pump rapidly.When the 2RV vacuum pump stops operating, the control

valve (→Fig 8.16) is closed.


Risk of injuries caused by vacuum or harmful media to be

pumped and operating liquid!

DANGERDANGERDANGERDANGER

Risk of injuries caused by running pump andmotor!

-- Do not touch the running pump

6.36.36.36.3 DrainingDrainingDrainingDraining offoffoffoff


If the operating liquid is harmful to human body or

environment, for the sake of safety, the pump needs to be

flushed during operation, before unscrewing the bolt to

drain off.

·To drain off, unscrew the bolt on the pump cover to let

the liquid flow out. Meanwhile, turn round the pump by

twirling the fan by hand until no liquid flow out.·The pump can be drained off by making the pump cover

45℃ inclination. In this way the pump can be kept

shutdown for a long time or in cold climate, without

causing damage to the pump.

7 Maintenance7.17.17.17.1 FlushFlushFlushFlush thethethethe pumppumppumppump

·To avoid impeller and pump casing wearing or impeller

blocking, the dust particle entering the pump chamber

with the gas and operating liquid should be flushed out



via the flushing port in the lower part on the pump cover.

· If hard water is used as operating liquid, it should be

softened, or flush the pump with solvent regularly.

7.27.27.27.2 LubricationLubricationLubricationLubrication· When using 50Hz motor under normal working

conditions:

-- After operating 20000 hours or 3 years at most, clear

off the dirt and the discarded grease near the shaft and

then replenish with fresh grease.

-- The grease replenished should occupy 50% of the

shaft free space and 65% of the bearing cup.

NOTENOTENOTENOTE

Collect contamination and escaping operating liquid and

dispose of in an environmentally-compatible way.

· If the working condition is extremely bad, the

replacement period of the grease should be

correspondingly shortened.

7.37.37.37.3 StorageStorageStorageStorage·If kept shutdown for about 4 weeks, the pump should be

drained off completely in advance. Later it needs to carry

on anticorrosive treatment, that is to pour 1/2 liter

anticorrosive oil into the pump through the suction port or

the discharge port and operate the pump for a short time.

· If the impeller is blocked when keeping prolonged

storage after using hard water, the pump chamber should

be filled with 10% oxalic acid and keeps for about 30

minutes.

· Make sure the storage room meets the following

conditions:

-- dry

-- frost-free

-- protected

-- constant humidity

7.47.47.47.4 TroubleshootingTroubleshootingTroubleshootingTroubleshooting

DefectDefectDefectDefect CauseCauseCauseCause RectificationRectificationRectificationRectification

Insufficient suction

capacity

1. Excessive gap between impeller

and inter casing.

Adjust for a correct gap

2. Air leakage of the packing Tighten or replace the packing, lower the water

supply temperature

3. Hot temperature of the water ring Increase operating liquid flow rate

4. Leakage in pipeline Tighten flange blots, replace gasket, weld the

crackles

5. Excessive flow resistance in

suction pipe

Reduce elbows, replace thick pipes

Insufficient vacuum A. Pipeline

1. Leakage in flange connection Tighten flange blots/replace gaskets

2. Crackle on pipes Weld the crackles/ replace pipe

B. Water ring

1. Air leakage of the packing Tighten or replace the packing

2. Excessive gap size between

impeller and side cap

Replace gasket, adjust the gap

DefectDefectDefectDefect CauseCauseCauseCause RectificationRectificationRectificationRectification

3. Operating liquid to got Cool down the operating liquid



Tab. 1 Defect, cause and solutions

8 Technical data8.18.18.18.1 TechnicalTechnicalTechnicalTechnical datadatadatadata ((((380V380V380V380V 50HZ50HZ50HZ50HZ))))8.1.18.1.18.1.18.1.1 TechnicalTechnicalTechnicalTechnical parameterparameterparameterparameter

4. Insufficient operating liquid flow

rate

Increase operating liquid flow rate

5. Hot operating liquid caused by

components friction

Adjust/ reassemble

Vibration or

strange noise

1. Loose foundation bolts Tighten foundation bolts

2. Foreign body grinds in the pump Shut down the pump and clear the foreign body.

3. Loose impeller Replace the impeller

4. Cavitation Open the valve of suction pipe

5. Bearing damage Replace the bearing

Bearing too hot

1. Insufficient lubrication Grease the bearing

2. Packing too tight Properly loosen the gland cover

3. No or insufficient sealing water

supply

Supply sealing water/Increase

4. Tight joint between bearing, shaft

or bearing bracket lead to small

gap and friction among balls and

inner ring

Readjust the joints between bearing and shaft/

bearing bracket

5. Bearing damage Replace the bearing

Hard startup

1. Rustiness owing to long-term

halt

Rotate the shaft towards the direction of pump

rotation.

2. Packing too tight Properly loosen the gland cover

3. Impeller rubs against the pump

casing.

Disassemble the pump, properly set the gap

size between impeller and pump casing

Leakage of

mechanical seal

1. Worn-out mechanical seal Replace mechanical seal

2. Loose spring of mechanical seal Adjust the elasticity of spring

3. Worn-out “O”-ring Replace the “O”-ring

Sudden shut down 1. Axial rotation of impeller Tighten the impeller

2. Pump is blocked by foreign body Clear the foreign body



Tab. 2 Technical parameter of 380V,50HZ condition

The data above is obtained in condition of:

-- saturated air temperature of media pumped: 20℃,

-- operating liquid temperature: 15℃,

-- discharge pressure: 1013mbar

-- allowance factor ±10%.

8.1.28.1.28.1.28.1.2 PerformancePerformancePerformancePerformance curvecurvecurvecurve

CurveCurveCurveCurve

No.No.No.No.

ModelModelModelModel Max.Max.Max.Max. suctionsuctionsuctionsuction

capacitycapacitycapacitycapacity

UltimateUltimateUltimateUltimate

vacuumvacuumvacuumvacuum

mbar(MPa)

MotorMotorMotorMotor

powerpowerpowerpower

kW


explosion-proofexplosion-proofexplosion-proofexplosion-proof

gradegradegradegrade


protectionprotectionprotectionprotection


SpeedSpeedSpeedSpeed

r.p.m

OperatingOperatingOperatingOperating

liquidliquidliquidliquid

flowflowflowflow raterateraterate

L/min

NoiseNoiseNoiseNoise

dB(A)

WeightWeightWeightWeight

kgm3/min m3/h

60V 2RV2-060 0.45 27

33mbar

(-0.097MPa)

0.81

Non-explosion

proof

IP54

2840 2.5 62 37

61V 2RV2-061 0.86 52 1.45 2840 2.5 65 41

70V 2RV2-070 1.33 80 2.35 2860 3 66 66

71V 2RV2-071 1.83 110 3.85 2880 4.7 72 85

110V 2RV5-110 2.75 165 4

Non-explosion

proof

1440 7.2 63 120

111V 2RV5-111 3.83 230 5.5 1440 8.8 68 150

121V 2RV5-121 4.66 280 7.5 1440 11 69 210

131V 2RV5-131 6.66 400 11 1460 16 73 280

161V 2RV5-161 8.33 500 15 970 22 74 390

110V 2RV6-110 2.75 165 4

dIIBT4 IP55

1440 67 63 150

111V 2RV6-111 3.83 230 5.5 1440 10 68 200

121V 2RV6-121 4.66 280 7.5 1440 12 69 230

131V 2RV6-131 6.66 400 11 1460 17 73 315

161V 2RV6-161 8.33 500 15 970 23 74 426

app:ds:%20%20saturated%20air

app:ds:allowance

app:ds:factor



Fig. 12 Performance curve 380V 50HZ

1.Suction capacity: V=100m³/h, suction pressure P1=400mbar

2.Other parameter choose the nearest curve of curve 1.

3.Pump model can be found according to curve NO. Eg. According to 70V, the corresponding pump is 2BV2-071.

Note:The curve is obtained under the following condition:

Medium : saturated air temperature 20℃

Operating liquid temperature 15℃

Discharge pressure 1013mba

Performance deviation ±10%

Curve on the left side is obtained with air ejector




Fig. 13 Dimension of 2RV-2060/2061/2070/2071

N1.0 Suction port

N2.0 Discharge port

N3.0 Operating liquid connection

N4.2 Water outlet

N8.7 Anti-cavitations connection

Tab. 3


A B B1 H1 H2 H3 H4 H6 E P2 P3 R M S2 W1 W2 W3 d N3.0 N4.2 N8.7

2060 455 186 140 90 118 126 195 37.5 100 250 180 217 244 Φ10 110 26 21 G1″ G3/8″ G1/4″ G3/8″

2061 476 186 140 90 118 195 195 37.5 100 250 180 236 263 Φ10 110 26 21 G1″ G3/8″ G1/4″ G3/8″

2070 545 223 160 222 100 128 222 33 140 270 203 252 280 Φ12 110 33 27G1 ″

G3/8″ G1/4″ G3/8″

2071 566 223 234 140 112 140 234 45 190 300 225 278 309 Φ12 110 33 37G1 ″

G3/8″ G1/4″ G3/8″



Fig. 14 Dimension of 2RV-5110/5111/5121/5131/5161

N1.0 Suction port

N2.0 Discharge port


N4.2 Water outlet




Tab. 4

Tab. 5


A B B1 B2 C1 C2 H1 H2 H3 H4 H5 H6 H7 F K L N T S1 S2 d1 d2 d3 d4 d5 W1

5110 637 325 255 190 41 26 140 156 202 361 328 38 57 464 320 130 92 340 Φ12Φ12 19 160 123 97 52 180

5111 672 325 265 290 38 26 150 166 212 371 363 48 68 500 325 130 92 340 Φ12Φ12 19 160 123 97 52 180

5121 771 347 265 290 36 26 150 167 217 385 363 39 60 584 410 147 97 382 Φ12Φ12 19 182 142 113 67 200

5131 840 377 300 335 35 30 175 194 249 427 435 53 76 659 440 147 103 382 Φ12Φ12 19 182 142 113 67 200

5161 1044 479 370 389 52 30 210 225 303 521 485 51 80 808 570 201 138 450 Φ15Φ15 22 200 156 130 80 250

W2 W3 d（N1.0，N2.0） N3.0 N4.2 N8.7

5110 52 27 DN50/2″ G3/4″(length24) G3/8″(length 25) G3/8″(length 11)

5111 52 27 DN50/2″ G3/4″(length 24) G3/8″(length 25) G3/8″(length 11)






Fig. 15 Dimension of 2RV-6110/6111/6121/6161

N1.0 Suction port

N2.0 Discharge port


N4.2 Water outlet




Tab. 6

8.28.28.28.2 TechnicalTechnicalTechnicalTechnical datadatadatadata （380V380V380V380V 60HZ60HZ60HZ60HZ）

Amax B B1 C1 F1 F2max H1 H2 H3 H4 H6 H7 K L N

6110 1097 330 255 26 291 490 160 173 223 381 58 77 319 319 281

6111 1291 330 279 26 360 550 180 196 242 401 78 97 349 349 311

6121 1332 351 279 26 361 605 180 197 247 415 69 90 384 384 340

6131 1525 382 320 26 461 615 215 234 287 467 93 116 405 405 353

6161 1680 484 320 26 461 705 230 230 310 526 56 85 477 477 413

W1 W2W3 S1 T d1 d2 d3 d4 d5d（N1.0,

N2.0）N3.0 N4.2 N8.7

6110 180 52 27 Φ13×23 340 19 160 123 97 52 DN50/2″″DN15+G3/4″

(length 24)

G3/8″

(length 25)

G3/8″

(length 11)

6110 80 52 27 Φ13×23 340 19 160 123 97 52 DN50/2″″DN15+G3/4″

(length 24)

G3/8″

(length 25)

G3/8″

(length 11)

6121 200 57 29 Φ13×23 382 19 182 142 113 67 DN60/21/2″″DN15+G3/4″

(length24)

G3/8″

(length 25)

G3/8″

(length 11)

6131 200 63 29 Φ13×27 382 19 182 142 113 67 DN60/21/2″″DN15+G3/4″

(length 24)

G3/8″

(length 25)

G3/8″

(length 11)

6161 250 81 41 Φ13×27 450 22 200 156 130 80 DN80/3″″DN15+G3/4″

(length 24)

G3/8″(length

25)

G3/8″

(length 11)



8.2.18.2.18.2.18.2.1 TechnicalTechnicalTechnicalTechnical parameterparameterparameterparameter

Tab. 7

8.2.28.2.28.2.28.2.2 PerformancePerformancePerformancePerformance curvecurvecurvecurve

CurveCurveCurveCurve

No.No.No.No.

ModelModelModelModel Max.Max.Max.Max. suctionsuctionsuctionsuction

capacitycapacitycapacitycapacity

UltimateUltimateUltimateUltimate

vacuumvacuumvacuumvacuum

mbar(MPa)


powerpowerpowerpower

kW


explosion-explosion-explosion-explosion-

proofproofproofproof gradegradegradegrade


protectionprotectionprotectionprotection


SpeedSpeedSpeedSpeed

r.p.m

OperatingOperatingOperatingOperating

liquidliquidliquidliquid flowflowflowflow

raterateraterate L/min

NoiseNoiseNoiseNoise

dB(A)m3/min m3/h

60V 2RVN-060 0.5 30

33mbar

(-0.097MPa)

1.5Non-explosion

proof /

explosion proof

IP54

3450 4.5 63

61V 2RVN-061 0.97 58 3 3450 4.5 66

70V 2RVN-070 1.46 88 4 3450 5 68

71V 2RVN-071 2.05 123 5.5 3450 6 72

110V 2RVN-110 3.08 185 7.5

Non-explosion

proof /

explosion proof

1745 9 63

111V 2RVN-111 4.3 258 7.5 1745 12 68

121V 2RVN-121 5.23 313 11 1745 15 69

131V 2RVN-131 7.33 440 15 1745 18 73

161V 2RVN-161 9.33 560 18.5 1175 24 74



Fig. 16 Performance curve 380V 60HZ

The curve is obtained in 60HZ motor frequency.

Broadband motor range 30-60HZ

Variable torque speed 30-50HZ

Constant power speed 50-60HZ

8888....2222....3333 2222BBBRVVVVNNNN----000066660000////000066661111////000077770000////000077771111 ((((wwwwiiiitttthhhh eeeexxxxpppplllloooossssiiiioooonnnn----pppprrrrooooooooffff mmmmoooottttoooorrrr ))))



Fig. 17 Dimension of 2RVN-060/061/070/071

N1.0 Suction port

N2.0 Discharge port

N3.0 Operating liquid connection N4.2

Water outlet


Tab. 8

2RVN-060/061/070/071 pump can also be drove by non-explosion-proof motor (also named as broadband motor),and

driving motor should be ordered according to the actual size, owing to size difference between biggest motors by different

manufactures.

8888....2222....4444 2222BBBRVVVVNNNN----111111110000////111111111111////111122221111////111133331111////111166661111

ModelModelModelModel A B1 B2 B3 E H1 H2 H3 H4 H6 M

2RVN-060 576 125 180 280 125 90 108 116 185 27.5 304

2RVN-061 651 140 180 280 140 100 118 126 195 37.5 323

2RVN-070 691 160 180 305 140 112 128 146 222 33 333

2RVN-071 706 190 200 325 140 132 140 158 234 45 382

ModelModelModelModel P2 P3 R S2 W1 W2 W3 d N3.0 N4.2 N8.7

2RVN-060 320 165 279 φ10 110 25.5 21 G1" G3/8" G1/4" G3/8"

2RVN-061 350 180 298 φ10 110 25.5 21 G1" G3/8" G1/4" G3/8"

2RVN-070 400 205 308 φ12 110 33 27 G11/2" G3/8" G1/4" G3/8"

2RVN-071 420 230 355 φ12 110 33 27 G11/2" G3/8" G1/4" G3/8"



Fig. 18 Dimension of 2RVN-110/111/121/131/161

N1.0 Suction port

N2.0 Discharge port


N4.2 Water outlet




Tab. 9

2RVN-110/111/121/131/161 pump can also be drove by non-explosion-proof motor (also named as broadband

motor),and driving motor should be ordered according to the actual size, owing to size difference between biggest

motors by different manufactures.

Amax B B1 C1 F1 F2max H1 H2 H3 H4 H6 H7 K L N

N110 1190 330 255 26 291 490 160 173 223 381 58 77 319 319 281

N111 1332 330 279 26 360 490 180 196 242 401 78 97 349 349 311

N121 1525 351 279 26 361 550 180 197 247 415 69 90 384 384 340

N131 1680 382 320 26 461 605 215 234 287 467 93 116 405 405 353

N161 1720 484 320 26 461 715 230 230 310 526 56 85 477 477 413

W1 W2 W3 S1 T d1 d2 d3 d4 d5 d (N1.0, N2.0) N3.0 N4.2 N8.7

N110 180 52 27 Φ13×23 340 19 160 123 97 52 DN50/2″″DN15+G3/4″

（length 24)

G3/8″

(length 25)

G3/8″

（length 11)

N111 80 52 27 Φ13×23 340 19 160 123 97 52 DN50/2″″DN15+G3/4″

（length 24)

G3/8″

(length 25)

G3/8″

（length 11)

N121 200 57 29 Φ13×23 382 19 182 142 113 67 DN60/21/2″″DN15+G3/4″

（length 24)

G3/8″

(length 25)

G3/8″

（length 11)

N131 200 63 29 Φ13×27 382 19 182 142 113 67 DN60/21/2″″DN15+G3/4″

(length 24)

G3/8″

(length 25)

G3/8″

（length 11)

N161 250 81 41 Φ13×27 450 22 200 156 130 80 DN80/3″″DN15+G3/4″

（length 24)

G3/8″

(length 25)

G3/8″

（length 11)



8.38.38.38.3 SaturatedSaturatedSaturatedSaturated vaporvaporvaporvapor pressurepressurepressurepressure inininin differentdifferentdifferentdifferent temperaturetemperaturetemperaturetemperature

Tab. 10

Temperature℃ 22 24 26 28 30 32 34 36 38 40

Vapor pressure MPa 0.00264 0.00298 0.00336 0.00378 0.00424 0.00475 0.00532 0.00594 0.00662 0.00738

Corresponding vacuum

MPa

0.09869 0.09835 0.09797 0.09755 0.09709 0.09658 0.09601 0.09539 0.09471 0.09395

Temperature℃ 42 44 46 48 50 52 54 56 58 60



MPa

0.09313 0.09223 0.09124 0.09017 0.08899 0.08772 0.08633 0.08482 0.08318 0.08141

Temperature℃ 62 64 66 68 70 72 74 76 78 80



MPa

0.07949 0.07742 0.07518 0.07277 0.07017 0.06737 0.06437 0.06114 0.05768 0.05397

Temperature℃ 82 84 86 88 90 92 94 96 98 100



MPa

0.05000 0.04576 0.04122 0.03638 0.03122 0.02572 0.01987 0.01364 0.00703 0.00000

Temperature℃ 102 104 106 108 110 112 114 116 118 120


Temperature℃ 122 124 126 128 130 132 134 136 138 140


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