Performance testing overview, Table 4-8: pump ratings (gpm/lpm), Performance testing equipment & materials – Hale SMR User Manual

Page 63: Performance testing equipment and materials

Advertising
background image

Stainless Max Series Pumps

4-11

Preventive Maintenance

7. Reopen the discharge valve, and check the flow through the

nozzle using a Pitot tube or flowmeter. Adjust the engine throttle
to bring the pressure to the amount previously determined.

8. Compare the flow rate measured to the NFPA minimum or the

designed rate of the pump. If the flow rate is lower, a problem
exists in the tank to pump line. The minimum flow rate should be
continuously discharged until 80% of the tank is discharged.

The pump should not experience mechanical problems, power
loss, or overheat during the test.

Performance Testing Overview

The yearly standard performance test consists of checking the
pump (according to its rating) at three capacities and comparing the
results to when the pump was first placed in service. This provides
some measure of any performance deterioration. See Table 4-8:
“Pump Rating (GPM/LPM).”

A pump must be able to pump full capacity at 150 PSI, 70% capac-
ity at 200 PSI and 50% capacity at 250 PSI.

Performance Testing Equipment and Materials

To accurately test pumper performance, requires a Pitot Gauge, a
calibrated pressure gauge, and a vacuum gauge or manometer.

All gauges must be carefully tested for accuracy. Testing is
appropriately accomplished with a dead weight gauge tester,
which is usually available at the local water works.

Table 4-8: Pump Ratings (GPM/LPM)

Capacity

Pressure

PSI (Bar)

Pump Rating in GPM (LPM)

1,500

(5,678)

1,250

(4,732)

L

L

U

F

)

0

1

(

0

5

1

0

5

2

)

6

4

9

(

0

5

3

)

5

2

3

,

1

(

0

5

4

)

3

0

7

,

1

(

0

0

5

)

3

9

8

,

1

(

0

5

7

)

9

3

8

,

2

(

0

0

0

,

1

)

5

8

7

,

3

(

0

5

2

,

1

)

2

3

7

,

4

(

0

0

5

,

1

)

8

7

6

,

5

(

L

L

U

F

)

1

1

(

5

6

1

0

5

2

,

1

)

2

3

7

,

4

(

0

0

5

,

1

)

8

7

6

,

5

(

0

7

%

)

4

1

(

0

0

2

0

5

1

)

8

6

5

(

5

4

2

)

7

2

9

(

5

1

3

)

2

9

1

,

1

(

0

5

3

)

5

2

3

,

1

(

5

2

5

)

7

8

9

,

1

(

0

0

7

)

0

5

6

,

2

(

5

7

8

)

2

1

3

,

3

(

0

5

0

,

1

)

5

7

9

,

3

(

%

0

5

)

7

1

(

0

5

2

5

2

1

)

3

7

4

(

5

7

1

)

3

6

6

(

5

2

2

)

2

5

8

(

0

5

2

)

6

4

9

(

5

7

3

)

0

2

4

,

1

(

0

0

5

)

3

9

8

,

1

(

5

2

6

)

6

6

3

,

2

(

0

5

7

)

9

3

8

,

2

(

1,000

(3,785)

750

(2,839)

500

(1,893)

450

(1,703)

350

(1,325)

250

(946)

Advertising
This manual is related to the following products:

SMD, SMM