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10

Risk of electric shock. Always disconnect the pump from the power source before handling inspections or repairs.

Troubleshooting Chart

PROBLEM

PROBABLE CAUSE

CHECK

- Threaded joints in the suction tightness.
- Gaskets for no wear.
- The mechanical seal for leaks.
- The drain plug has leaks.
- The vacuum gauge may be leaking.

2. Insufficient liquid in the 
pump casing.

- That the pump´s body is  lled with water.

3. Low operating speed.

- The motor speed (RPM).

- Impeller rotates freely.

- Internal parts are clean.

5. Mechanical defect.

- That the internal parts are not worn.

B) The pump does not prime, 
the vacuum gauge reading 
indicates higher than normal.

1. Pipe clogged suction.

- The suction line is clean.

1. The pump speed is very 
low.

- The voltage is correct.

2. Mechanical defects.

- The internal parts for wear.

- The discharge is clear of obstructions.

- That the discharge valves operate correctly.

1. suction dynamic level 
too high.

- When the pump is operating, never lacks 
water in the suction.
- For leaks in suction piping,  anges and 
gaskets.
- That there is no vortex effect at the end of 
the suction, this lack of water.
- That screws are tight at the base.
- There are no cracks in the base.
- The dynamic level is not too high
- That the pumping capacity is not too much.
- The pump is operating in the range of NPSHR
- If reducing  ow makes the noise gone, then 
the problem is in the point above; partially 
close the discharge valve.
- The bearings for wear.
- That there is oil in the deposit.
- The impeller does not have any foreign 
material.
- The pump is operating in the range.
- That the alignment is correct.

1. Low Voltage.

- The voltage is correct.
- The amperage of the plate is not exceeded.
- There is no foreign material that may force 
the impeller.
- That the motor is suitable for the pump.

2. Overload.

A) The pump does not prime, 
the vacuum gauge indicates a 
lower reading than normal.

F) The pump priming pumps 
well and satisfactorily but noisy.

E) The pump loses its priming 
during operation, vacuum 
gauge reading drops to zero.

G) Motor overload.

4. Vibration.

1. Pump base is loose.

2. Cavitation.

3. Bearings.

2. The pump is sucking air.

D) The pump priming good 
vacuum gauge reading is 
almost normal, reading the 
manometer is greater.

1. Discharge obstructed.

1. Air leak in the suction 
system.

4. Bound pump.

C) The pump priming good 
vacuum gauge reading is 
normal, the manometer 
indicates a lower pressure than 
normal.

NOTE: 

Barmesa Pumps assumes no responsibility for damage or injury due to disassembly in the field. Disassembly of the pumps or supplied accessories other 

than at Barmesa Pumps or its authorized service centers, automatically voids warranty.

barmesa.com

Содержание IC 1 1/2 H Series

Страница 1: ...n Operation Maintenance Manual End Suction Centrifugal Pumps IMPORTANT Read all instructions in this manual before operating or servicing a pump IC 1 H series 1 15 HP 3500 RPM Last update 07 16 2021 b...

Страница 2: ...causeseriousinjury Always wear eye protection when working on pumps Do not wear loose clothing that may become entangled in moving parts Pumps build up heat and pressure during operation Allow time fo...

Страница 3: ...yenamel waterbased Specifications Dimensions D D D M M 4 HOLES 4 HOLES M 4 HOLES H H H J J J B B B C C C SUCTION SUCTION SUCTION DISCHARGE DISCHARGE DISCHARGE G G G I I I A A A L L L K K K E E E F F F...

Страница 4: ...uld be as close as possible to the liquid to be pumped with a minimum number of couplings adapters etc in order to reduce friction on the suction side The suction and discharge piping must be perfectl...

Страница 5: ...d by using a smaller diameter pipe a larger diameter discharge pipe is commonly used than the required by the volute or body Figure 2 Wrong installation Without strainer Vortex D Too much height Less...

Страница 6: ...sealant IMPORTANT Do not operate pump without priming first Operating dry will damage seal 4Pre Operation 1 Check Voltage and Phase Compare the voltage and phase information stamped on the pump name...

Страница 7: ...suction or discharge simply remove the body nuts this would uncover the impeller Examine and replace if it shows wear or damage When the impeller requires replacement remove the screw of the shaft and...

Страница 8: ...Seal stationary Seal rotating member Spring Impeller Impeller lockwasher Lockwasher Hex screw Figure 8 Mechanical Seal Sectional View 1 Ceramic seat 2 Seal seat Buna N 3 Inox retainer 4 Inox jacket 5...

Страница 9: ...643 48 55 19 65 6 54 1 67 0 54 170 681 54 1 21 9 7 28 1 86 0 6 180 757 66 3 26 7 8 9 2 27 0 73 0 3 200 833 80 32 2 10 07 2 72 0 87 0 35 220 908 95 38 1 12 6 3 21 1 03 0 41 240 984 111 44 5 14 7 3 74...

Страница 10: ...ARD 45 ELBOW 0 38 0 54 0 61 0 77 0 92 1 15 1 53 1 83 2 29 STANDARD TEE 1 68 2 29 2 75 3 36 4 28 5 19 6 71 8 23 10 1 ANGLE GLOBE VALVE OPEN 3 97 5 49 6 71 8 23 10 7 12 2 16 8 21 3 25 9 GLOBE VALVE OPEN...

Страница 11: ...ng capacity is not too much The pump is operating in the range of NPSHR If reducing ow makes the noise gone then the problem is in the point above partially close the discharge valve The bearings for...

Страница 12: ...11 barmesa com...

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