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Caution:  Before removing the terminal box cover and before any removal/dismantling  of the pump, make 

sure that the power supply has been switched off.

18

Fault Finding & Solution Chart

FAULT

CAUSE

SOLUTION

REMARKS

a) Power supply failure.

a)Check power supply.

b) Fuses are blown.

b) Replace fuses.

c) Motor is overloaded.

c) Check system.

d) Main contacts of starter are 
not connected well or the coil 
is defective.

d) Replace motor starter.

e) Control circuit is defective. e) Check control circuit.
f) Motor is defective.

f) Repair.

a) Fuses are blown.

a) Replace fuses.

b) Contacts of overload device

 

are faulty.

b) Check motor starter.

c) Cable connection is loose 
or faulty.

c) Check cables and power 
supply.

d) Motor winding is defective. d) Replace motor.

e) Pump mechanicably 
blocked.

e) Check and repair pump.

a)The setting of overboad is 
too low.

a) Reset overload setting.

b) Periodic power supply 
faults.

b) Check power supply.

c) Low voltage at peak times. c) Add regulator.
a) Contacts of starter are not 
contacted welI or the coil is 
faulty.

a) Change motor starter.

b) Control circuit are 
defective

b) Check control circuit.

a) Suction pipe is too small.

a) Enlarge inlet pipeline.

b) There is not sufficient water

 

in pump water inlet.

b) Improve system and 
increase coming water.

c) Liquid Ievel is Iow.

c) Try to lift liquid level.

d) Pump inlet pressure is too 
low compared with water 
temperature, pipeline Ioss 
and flow.

d) Improve system and try to 
increase the inlet pressure.

e) Suction pipe is partly 
blocked by impurities.

e) Check and clear impurities.

In the case of d) and e), 
users shall not 
disassemble the pump 
by themselves.

Motor does not run 
when started.

Overload device of 
motor starter trips out

 

immediately when 
power supply is 
switched on.

Overload device trips 
out occasionally.

Motor starter has not 
tripped out but the 
pump does not run.

Pumped water does 
not flow constantly.

Table 5

barmesapumps.com

Содержание 70120001

Страница 1: ...BMV series Installation Operation Maintenance Manual Vertical Multi Stage IMPORTANT Read all instructions in this manual before operating or servicing a pump barmesapumps com...

Страница 2: ...not insert fingers in pump with power connected the rotating cutter and or impeller can cause serious injury Always wear eye protection when working on pumps Do not wear loose clothing that may becom...

Страница 3: ...pplications Pumped liquids low viscosity neutral non explosive liquids not containing solid particles or fibres The liquid must not attack the pump materials chemically Boiler water supply and condens...

Страница 4: ...nclature Nameplate To each pumping equipment is placed an identification plate as shown below 03 Definition of Model B M V 1 2 5 0 3 0 3 PHASE HP STAGE x10 RATED FLOW m h MULTI STAGE PUMP barmesapumps...

Страница 5: ...Refer to Fig 1 Key parts of the pump diffuser impeller cylinder shaft arc all made of stainless steel Also the material of pump head and inlet outlet chamber is made of stainless steel Mechanical seal...

Страница 6: ...T M8 WASHER 8 1 KIT 33 INDUCER 1 Pc 34 CYLINDER 1 Pc 35 FLANGE TYPE INLET OUTLET CHAMBER 1 Pc 36 CIRCLIP 2 Pc 37 FLANGE 2 Pc 38 FLANGE TYPE BASE PLATE 1 Pc 39 O RING RETAINER 1 Pc 40 O RING 8mm x 2 65...

Страница 7: ...10 15 27 23 24 25 29 30 23 32 33 41 42 14 43 44 28 31 24 25 35 34 36 37 23 24 25 22 26 38 39 40 Figure 1B BMV8 BMV20 For Repair Part Please supply Model Number and Serial as shown on Name Plate and P...

Страница 8: ...ELLER SLEEVE S 1 Pc 32 FIRST IMPELLER COVER 1 Pc 33 NUT M12 WASHER 12 1 KIT 34 STRAP 2 Pc 35 INDUCER 1 Pc 36 SCREW M8x20 2 Pc 37 FLANGE TYPE INLET OUTLET CHAMBER 1 Pc 38 CIRCLIP 2 Pc 39 FLANGE 2 Pc 40...

Страница 9: ...8 18 22 23 19 28 29 30 31 26 27 32 33 27 28 29 30 34 26 27 28 29 30 35 36 38 37 44 39 43 42 15 13 41 40 Figure 1C BMV32 BMV65 For Repair Part Please supply Model Number and Serial as shown on Name Pla...

Страница 10: ...RT DIFFUSER 1 Pc 32 INTERMEDIATE BEARING 1 Pc 33 IMPELLER NUT FOR SUPPORT DIFFUSER 1 Pc 34 DIFFUSER 1 Pc 35 INDUCER 1 Pc 36 BOTTOM BEARING 1 Pc 37 SOCKET HEAD SCREW WASHER 4 KIT 38 BOTTOM SLEEVE 1 Pc...

Страница 11: ...ds or fixed brackets on the wall Pay attention not to let the weight of pipe system on pump to prevent pump from damage When installation motor is not allowed to be hung upside down Arrow on the inlet...

Страница 12: ...2 BMV1 BMV2 BMV3 BMV4 BMV8 BMV12 BMV16 BMV20 BMV32 BMV42 BMV65 DN 32 40 65 80 100 P1 107 120 150 P1 100 110 145 160 180 P2 140 145 185 200 220 n D1 C 280 320 365 380 E 80 105 H 25 30 RATED FLOW PN25 4...

Страница 13: ...4 10 8 192 BMV8 140 1503 33 19 52 13 10 291 BMV12 20 303 14 11 26 7 6 84 BMV12 50 753 19 17 36 10 8 159 BMV12 70 1003 22 17 38 10 8 159 BMV12 100 1503 29 19 48 13 10 324 BMV12 140 2003 33 19 53 13 10...

Страница 14: ...or EN 60204 1 as well as by the national rules of the country where the pump is used Despite the rules of any country the power supply to the pump unit must be equipped with at least following electr...

Страница 15: ...let pipeline In open system fill water in pump when liquid surface is lower than pump A check valve shall be installed in the inlet pipe Close the pump outlet valve release air vent screw and fill the...

Страница 16: ...s installed according to this installation manual will work effectively and require a little maintenance Mechanical seal will be adjusted automatically the moving part and stationary part is lubricate...

Страница 17: ...the space between the two couplings should be equal Tighten fixing bolts in mechanical seal rotate the coupling to ensure that the shaft can rotate freely and not be choked Reverse the process above...

Страница 18: ...the inlet outlet chamber fit on O ring lubricate the O ring and then put on the cylinder Fit stay bolts on the base plate then fit the O ring adjusting rubber air vent gag on the pump head and put th...

Страница 19: ...d setting b Periodic power supply faults b Check power supply c Low voltage at peak times c Add regulator a Contacts of starter are not contacted welI or the coil is faulty a Change motor starter b Co...

Страница 20: ...ed position c Check and repair foot valve d There is air in suction pipe d Check and repair suction a Leakage in suction pipe a Check and repair suction pipe b Suction pipe is too small or suction pip...

Страница 21: ......

Страница 22: ......

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