Fire Pump Report-from RFI012 Question.pdf

www.bigredpumps.com

2445 Gateway Ave. Suite 140, Irving, TX 75063

(817) 430-2400

2500 Central Pkwy, Suite B, Houston, TX 77092

(713) 936-2334

NFPA 20/25

FIRE PUMP TEST REPORT

Report No. 2250-3 Pump No. P02250

Project/Job Name:

Street:

City/State/Zip:

Naval Air Station Joint Reserve Base, Building 1657 FP-1 1219 Depot Avenue Fort Worth, TX 76127

Test Date:

Pump Tech:

Performed For:

1-14-2022 Test Kit No.: 8 Harvey De Paula Texas Fire & Sound

FIRE PUMP NAMEPLATE INFO DRIVER NAMEPLATE INFO CONTROLLER NAMEPLATE INFO

Type Horizontal Split Case Type Electric Type Full Svc - ATL Pump Mfr. Fairbanks Morse/Nijhuis Manufacturer Marathon Manufacturer Metron Model 6" 2824CF Model/Frame 445TS Model Rated GPM 2000 Horse Power 200 Horse Power 200 Rated PSI 121 RPM 1,780 Voltage 460 Rated RPM 1,785 Voltage 460 Phases 3 Maximum PSI 142.4 Amps 231 Interrupt Cap. 100,000 PSI @ 150% 99.8 Phases 3 ATS S/N Impeller Size 17.10 in. Frequency (Hz) 60 Hz Diesel Ground Stages/Max BHP 1 / BHP Svc. Factor 1.15 Serial No. 23622405 Serial No. K3W1021665-1 Serial No. 0910440-7

SYSTEM CONFIGURATION CONTROLLER TEST RESULTS

Pump Suct. Flange: 10 in. Fire Pump Jockey Pump Auto Transfer Switch

Pump Disch. Flange: 8 in. Start PSI: 90 Start PSI: 100 Installed: No Pump Rotation: LH (CCW) Stop PSI: Stop PSI: 140 Tested: No

Water Source: Tank Manual Starts: 1 RPT Setting: Transfer Time Settings

Flowmeter: No Test Header: Yes

Auto Starts: 1 JP HP: 3 To Emerg. (secs):

Emergency Starts: 1 JP Model: To Normal (mins):

TEST TYPES: R-Roof H-Ground Header M-Flowmeter TEST RESULTS

Speed

RPM

Pressure Readings PSI Test Type

Streams GPM % Rated MRV

Volts / Amps Roof PSIDisch. Suct. Net Size No. Pitot

PSI A B C

1782 150 6 144 0 Churn 485 V 481 V 480 V 123 A 135 A 123 A

1776 129 4 125 H 1.75 5 20 1,981 99% 482 V 479 V 478 V 210 A 222 A 203 A

1772 100 0 100 H 1.75 5 46 3,005 150% 479 V 476 V 475 V 247 A 239 A 247 A

--- --- --- 0 0% V V V A A A

--- --- --- 0 0% V V V A A A

NFPA PERFORMANCE REVIEW

Min. Flow Rated Flow Peak Flow Min. flow head did not exceed 140% of rated flow head: Yes0% 100% 150%

Actual PSI 144 Actual PSI 125 Actual PSI 100 Peak flow head is not less than 65% of rated flow head: Yes

Adjusted PSI 144 Adjusted PSI 126 Adjusted PSI 101 Electric motor performance within allowable limits: Yes

Nameplate PSI 142.4 Nameplate PSI 121 Nameplate PSI 99.8

Difference* 101% Difference* 104% Difference* 102% Power supply voltage within allowable limits: Yes

* NFPA requires that the fire pump perform at no less than 95% of the nameplate PSI values.

NOTES: Alignment of pump/motor shafts checked, currently no alignment needed. SRC:

© 2020 Mechantek Corporation. All rights reserved.

MP300-200-480C

www.bigredpumps.com

2445 Gateway Ave. Suite 140, Irving, TX 75063

(817) 430-2400

2500 Central Pkwy, Suite B, Houston, TX 77092

(713) 936-2334

NFPA 20/25

FIRE PUMP TEST REPORT

Report No. 2251-3 Pump No. P02251

Project/Job Name:

Street:

City/State/Zip:

Naval Air Station Joint Reserve Base, Building 1657 FP-2 1219 Depot Avenue Fort Worth, TX

Test Date:

Pump Tech:

Performed For:

1-14-2022 Test Kit No.: 8 Harvey De Paula Texas Fire & Sound

FIRE PUMP NAMEPLATE INFO DRIVER NAMEPLATE INFO CONTROLLER NAMEPLATE INFO

Type Horizontal Split Case Type Electric Type Full Svc - ATL Pump Mfr. Fairbanks Morse/Nijhuis Manufacturer Marathon Manufacturer Metron Model 6" 2824CF Model/Frame 445TS Model MP300-200-480C Rated GPM 2000 Horse Power 200 Horse Power 200 Rated PSI 121 RPM 1,780 Voltage 460 Rated RPM 1,785 Voltage 460 Phases 3 Maximum PSI 142.2 Amps 231 Interrupt Cap. 100,000 PSI @ 150% 99 Phases 3 ATS S/N Impeller Size 17.10 in. Frequency (Hz) 60 Hz Diesel Ground Stages/Max BHP 1 / BHP Svc. Factor 1.15 Serial No. 23622406 Serial No. K3W1021665-0 Serial No. 09-09688-3

SYSTEM CONFIGURATION CONTROLLER TEST RESULTS

Pump Suct. Flange: 10 in. Fire Pump Jockey Pump Auto Transfer Switch

Pump Disch. Flange: 6 in. Start PSI: 85 Start PSI: 100 Installed: No Pump Rotation: LH (CCW) Stop PSI: Stop PSI: 140 Tested: No

Water Source: Municipal Manual Starts: 1 RPT Setting: Transfer Time Settings

Flowmeter: No Test Header: Yes

Auto Starts: 1 JP HP: 3 To Emerg. (secs):

Emergency Starts: 1 JP Model: To Normal (mins):

TEST TYPES: R-Roof H-Ground Header M-Flowmeter TEST RESULTS

Speed

RPM

Pressure Readings PSI Test Type

Streams GPM % Rated MRV

Volts / Amps Roof PSIDisch. Suct. Net Size No. Pitot

PSI A B C

1790 145 4 141 0 Churn 478 V 481 V 478 V 143 A 152 A 146 A

1787 128 3 125 H 1.75 5 20 1,981 99% 476 V 479 V 475 V 209 A 218 A 218 A

1781 100 0 100 H 1.75 5 46 3,005 150% 474 V 476 V 474 V 246 A 255 A 249 A

--- --- --- 0 0% V V V A A A

--- --- --- 0 0% V V V A A A

NFPA PERFORMANCE REVIEW

Min. Flow Rated Flow Peak Flow Min. flow head did not exceed 140% of rated flow head: Yes0% 100% 150%

Actual PSI 141 Actual PSI 125 Actual PSI 100 Peak flow head is not less than 65% of rated flow head: Yes

Adjusted PSI 140 Adjusted PSI 125 Adjusted PSI 100 Electric motor performance within allowable limits: Yes

Nameplate PSI 142.2 Nameplate PSI 121 Nameplate PSI 99

Difference* 99% Difference* 103% Difference* 101% Power supply voltage within allowable limits: Yes

* NFPA requires that the fire pump perform at no less than 95% of the nameplate PSI values.

NOTES: Alignment of pump/motor shafts recommended.

Replacement of coupling or coupling insert recommended. Current coupling insert has some deterioration.

Fire pump repack recommended, currently packing has no more room for adjustment.

Replacement of jockey pump recommended. Current jockey pump is leaking excessively.

SRC:

© 2020 Mechantek Corporation. All rights reserved.

106 Decker Court ■ Suite 225 ■ Irving Texas 75062

817.430.2400 ■ www.mechantek.com

Subject: Fire Pump/Jockey Pump Controller Settings

Dear Fire Protection Partner:

We recently conducted a test of a fire pump on your behalf (see attached Pump Test Report). We discovered that the start and stop pressure settings for the fire pump and/or jockey pump at this facility may not be set in accordance with the 2016 NFPA Pamphlet 20 recommendations (Annex A.14.2.6):

(4) Fire Pump Settings. The fire pump system, when started by pressure drop, should be arranged as follows:

(a) The jockey pump stop point should equal the pump churn pressure plus the minimum static supply pressure.

(b) The jockey pump start point should be at least 10 psi (0.68 bar) less than the jockey pump stop point.

(c) The fire pump start point should be 5 psi (0.34 bar) less than the jockey pump start point. Use 10 psi (0.68 bar) increments for each additional pump.

(d) Where minimum run times are provided, the pump will continue to operate after attaining these pressures. The final pressures should not exceed the pressure rating of the system.

(e) Where the operating differential of pressure switches does not permit these settings, the settings should be as close as equipment will permit. The settings should be established by pressures observed on test gauges.

Potential Problems:

Using high differentials between the fire pump start pressure and the fire pump churn pressure creates the potential for pressure surges, known as water hammering, which could damage pipes and/or fittings when the fire pump is called to service by the controller. This could potentially result in the reduced efficacy of the fire suppression system in the event of a fire and significant water damage when just performing periodic tests of the fire pump.

Possible Solutions:

The pressure settings in the jockey pump controller and fire pump controller are regulated by pressure switches and/or transducers, depending on the age of the controllers. These switches/transducers can be adjusted to achieve pressure setting differentials closer to those recommended by NFPA 20.

Over time, the sensitivity of these switches and transducers can deteriorate. If the desired settings cannot be achieved, the pressure switch or transducer may need to be replaced.

For further assistance, please contact us at 817-430-2400.

Rev.04 9/4/21