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Heavy Duty Impeller Pumps FB-8 series

Marine – Recreational / Flexible Impeller Pumps – Multi-purpose

The Heavy Duty range of multi-purpose bronze pumps are raw water resistant and have a compact design. These pumps are designed for a number of applications onboard and have gained a time-tested reputation for quality and reliability.

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Johnson Pump
Features

Features

  • FxB-8 = Flexible Impeller Pump, Bronze body, 8 = General purpose with double ball bearings and lip seal
  • Excellent self-priming capability
  • Ideal as cooling water pumps for marine engines, bilge pumps, deck wash pumps, freshwater pumps, fuel-transfer pumps and other applications.
  • Also ideally suited on shore for emptying septic tanks and for flushing clean and filling water tanks.
  • Available in sizes from ⅜” to 1½” (4 L/min to 279 L/min).
  • Vacuum switch as extra accessory for F8B-8007 only
Theory of Operation

Theory of Operation

Flexible Impellers – Operating Principle

  • A vacuum is created as the flexible impeller vanes straighten upon leaving the cam, drawing liquid into the pump.
  • The rotating impeller carries liquid from the inlet to the outlet port. As a consequence of their design, flexible impeller pumps can pass fairly large solids.
  • When the flexible impeller vanes regain contact with the cam, they bend and the liquid is discharged from the pump in a uniform flow. Liquids can be pumped in the opposite direction by reversing the rotation of the pump.
Specifications

Specifications

Materials

Pump Body  Bronze
Shaft  Stainless steel The shaft is mounted with permanently lubricated double ball bearings
Seal  Mechanical seal
Cam  Full or reduced
Connection BSP or NPT

 

Heavy Duty Impeller Pumps – FB-8 Technical Data

Part No. Description Part No. USA Description USA Impeller Connection Length Width Height Weight Drive Shaft Ø
10-24569-01 F35B-8 10-24569-51 F35B-8007 09-808B-1 ⅜” NPT 109 mm – 4.29″ 80 mm – 3.14″ 30 mm – 1.18″ 0.5 kg – 1.2 lbs 12 mm -⅜”
10-24570-01 F4B-8 10-24570-51 F4B-8007 09-810B-109-810B-9*** ⅜” NPT 111 mm – 4.37″ 80 mm – 3.15″ 50 mm – 1.97″ 0.8 kg – 1.8 lbs 12 mm -⅜”
10-24571-01 F5B-8 10-24571-51 F5B-8007 09-1027B-109-1027B-9*** ¾” NPT 151 mm – 5.95″ 106 mm – 4.17″ 50 mm – 1.97″ 1.6 kg – 3.5 lbs 17 mm -⅝”
10-24572-01 F7B-8 10-24572-51 F7B-8007 09-1028BT-109-1028B-9*** 1″ NPT 170 mm – 6.69″ 120 mm – 4.72″ 50 mm – 1.97″ 1.9 kg – 4 lbs 17 mm – ⅝”
10-13021-95 F8B-8007* 09-819B-0009-819B-9*** 1¼” NPT 217 mm – 8.54″ 160 mm – 6.3″ 65 mm – 2.56″ 5.9 kg – 13 lbs 24 mm – 1″
10-13021-1 F8B-8 10-13021-96 F8B-8007* 09-819B-0009-819B-9*** 1½” NPT 217 mm – 8.54″ 160 mm – 6.3″ 65 mm – 2.56″ 5.9 kg – 13 lbs 24 mm – 1″
*1″ shaft keyed***Pump with nitrile impeller avaliable on request

See Flexible Impeller Multi-Purpose Pumps Accessories for Vacuum Switch

Performance

Performance

Bronze Impeller Pump Performance Tables

Note! Reduced cam – 30-40% lower capacityImpeller of nitrile – adjust total head approx. 30% down

F35B 700 rpm 900 rpm 1400 rpm 1750 rpm 2000 rpm 2500 rpm
Bar kPa ft kW L/min GPM kW L/min GPM kW L/min GPM kW L/min GPM kW L/min GPM kW L/min GPM
0.3 30 10.1 0.06 5.2 1.4 0.09 6.8 1.8 0.13 11.2 3.0 0.16 14.0 3.7 0.18 16.0 4.2 0.18 20.5 5.4
0.6 60 20.1 0.09 4.6 1.2 0.09 6.2 1.6 0.13 10.6 2.8 0.16 13.7 3.6 0.18 15.8 4.1 0.18 19.6 5.2
1.0 100 33.5 0.09 4.0 1.1 0.09 5.6 1.5 0.18 9.2 2.4 0.18 11.8 3.1 0.18 13.6 3.6 0.18 17.0 4.5

 

F4B 700 rpm 900 rpm 1400 rpm 1750 rpm 2000 rpm 2500 rpm
Bar kPa ft kW L/min GPM kW L/min GPM kW L/min GPM kW L/min GPM kW L/min GPM kW L/min GPM
0.3 30 10.1 0.06 12.0 3.2 0.09 15.0 4.0 0.13 23.0 6.0 0.17 27.0 7.1 0.18 30.5 8.1 0.18 34.5 9.1
0.6 60 20.1 0.09 11.0 2.9 0.09 14.0 3.7 0.13 21.0 5.4 0.17 25.0 6.6 0.18 28.0 7.4 0.18 33.0 8.7
1.0 100 33.5 0.09 9.0 2.4 0.09 11.0 2.9 0.18 18.0 4.8 0.18 22.0 5.8 0.18 25.0 6.6 0.18 29.5 7.8
1.5 150 50.3 0.09 4.5 1.2 0.09 7.0 1.8 0.18 13.5 3.6 0.18 17.0 4.5 0.18 20.0 5.3 0.2 25.0 6.6

 

F5B 700 rpm 900 rpm 1400 rpm 1750 rpm 2000 rpm
Bar kPa ft kW l/min GPM kW l/min GPM kW l/min GPM kW l/min GPM kW l/min GPM
0.3 30 10.1 0.13 16.0 4.2 0.18 21.0 5.5 0.37 33.0 8.7 0.37 41.0 10.8 0.37 46.0 12.2
0.6 60 20.1 0.13 15.0 4.0 0.18 20.0 5.3 0.37 32.0 8.5 0.37 39.5 10.4 0.37 45.0 11.9
1.0 100 33.5 0.13 14.0 3.7 0.18 19.0 5.0 0.37 30.0 7.9 0.37 37.0 9.8 0.37 42.0 11.1
1.5 150 50.3 0.13 13.0 3.4 0.18 17.0 4.5 0.37 27.0 7.1 0.37 33.5 8.9 0.37 38.0 10.0
2.0 200 67.1 – – – – – – 0.37 22.0 5.8 0.37 28.5 7.5 0.37 33.0 8.07

 

F7B 700 rpm 900 rpm 1400 rpm 1750 rpm 2000 rpm
Bar kPa ft kW l/min GPM kW l/min GPM kW l/min GPM kW l/min GPM kW l/min GPM
0.3 30 10.1 0.37 36.0 9.5 0.37 46.0 12.2 0.75 74.0 19.6 0.75 98.0 25.9 0.75 107.0 28.3
0.6 60 20.1 0.37 34.0 9.0 0.37 44.0 11.6 0.75 72.0 19.0 0.75 96.0 25.4 0.75 104.0 27.5
1.0 100 33.5 0.37 29.0 7.7 0.37 40.0 10.6 0.75 67.0 17.7 0.75 87.0 23.0 0.75 98.0 25.9
1.8 180 60.4 0.37 21.0 5.5 0.37 30.0 7.9 0.75 57.0 15.1 0.75 73.0 19.3 0.75 84.0 22.2
2.5 250 83.8 – – – – – – 0.75 37.0 9.8 1.1 52.0 13.7 1.1 63.0 16.6

 

F8B 700 rpm 900 rpm 1400 rpm 1750 rpm 2000 rpm
Bar kPa ft kW L/min GPM kW L/min GPM kW L/min GPM kW L/min GPM kW L/min GPM
0.3 30 10.1 0.37 87.0 23.0 0.75 114.0 30.1 1.1 188.0 50.0 1.5 241.0 63.7 1.5 279.0 73.7
0.6 60 20.1 0.37 80.0 21.1 0.75 107.0 28.3 1.1 180.0 47.6 1.5 233.0 61.6 1.5 270.0 71.3
1.0 100 33.5 0.37 73.0 19.3 0.75 101.0 26.7 1.1 177.0 46.8 1.5 228.0 60.2 1.5 264.0 69.7
1.8 180 60.4 – – – 1.1 70.0 18.5 1.1 148.0 39.1 2.2 203.0 53.6 2.2 242.0 63.4
2.5 250 83.8 – – – – – – 1.1 108.0 28.5 2.2 166.0 43.9 2.2 208.0 55.0

 

F9B-5000 700 rpm 900 rpm 1400 rpm 1750 rpm 2000 rpm
Bar kPa ft kW L/min GPM kW L/min GPM kW L/min GPM kW L/min GPM kW L/min GPM
0.3 30 10.1 0.75 129.0 34.1 0.75 170.0 44.9 1.5 268.0 70.8 1.5 331.0 87.5 2.2 388.8 102.7
0.6 60 20.1 0.75 124.0 32.8 0.75 161.0 42.5 1.5 260.0 68.9 2.2 323.0 85.3 2.2 383.1 101.2
1.0 100 33.5 0.75 118.8 31.4 1.1 156.0 41.2 1.5 255.6 67.5 2.2 315.2 83.3 3.0 379.2 100.2
1.8 180 60.4 1.1 105.0 27.7 1.1 140.0 37.0 1.5 235.0 62.1 2.2 286.1 75.6 3.0 351.3 92.8
2.5 250 83.8 1.1 83.7 22.1 1.5 102.0 26.9 2.2 208.0 55.2 3.0 266.0 70.3 3.0 304.1 80.3

 

F9B-5600 700 rpm 900 rpm 1400 rpm 1750 rpm 2000 rpm
Bar kPa ft kW L/min GPM kW L/min GPM kW L/min GPM kW L/min GPM kW L/min GPM
0.3 30 10.1 0.75 129.0 34.1 1.1 170.0 44.9 1.5 270.0 71.3 1.5 331.0 87.5 2.2 376.0 99.3
0.6 60 20.1 0.75 126.0 32.8 1.1 165.0 43.6 1.5 266.0 70.3 2.2 323.0 85.3 2.2 368.0 97.2
1.0 100 33.5 0.75 123.0 32.5 1.1 161.1 42.6 2.2 260.0 68.7 2.2 314.0 83.3 3.0 361.0 95.4
1.8 180 60.4 0.75 110.0 29.1 1.5 153.0 40.4 2.2 242.0 63.9 2.2 291.0 76.9 3.0 340.0 89.8
2.5 250 83.8 1.1 90.0 23.8 1.5 130.0 34.3 2.2 218.0 57.6 3.0 269.0 71.1 3.0 312.0 82.4
3.0 300 100.6 1.5 61.0 16.1 2.2 102.0 26.9 3.0 190.0 50.2 3.0 242.0 63.9 3.5 284.0 75.0
3.5 350 117.4 – – – – – – 3.0 160.0 42.3 3.5 205.0 54.2 3.5 235.0 62.1

 

F95B 700 rpm 900 rpm 1400 rpm 1750 rpm 2500 rpm
Bar kPa ft kW L/min GPM kW L/min GPM kW L/min GPM kW L/min GPM kW L/min GPM
0.5 50 16.8 0.75 182.6 48.2 1.1 236.5 62.5 1.5 384.2 101.5 2.2 483.6 127.8 4.0 626.7 165.5
1.0 100 33.5 1.1 172.7 45.6 1.1 231.3 61.1 1.5 372.0 98.3 3.0 472.9 124.9 5.5 617.9 163.2
1.5 150 50.3 1.1 160.1 42.3 1.5 214.5 56.7 2.2 350.4 92.6 3.0 444.1 117.3 5.5 583.8 154.2
2.0 200 67.1 1.1 132.3 35.0 1.5 181.0 47.8 3.0 315.4 83.3 3.5 406.2 107.3 5.5 553.1 146.1
2.5 250 83.8 1.5 79.5 21.0 2.2 137.8 36.4 3.0 267.6 70.7 4.0 361.3 95.5 7.5 506.4 133.8