Distant Water Source Situation1,2,3

Excess Lift Situation1,2,3

Length of 5" Hose

Lift

Discharge Pressure

Max. Avail. Fire Flow1,2

50'
 

10'
20'

175 psig
175 psig

670 GPM
470 GPM

100'

10'
20'

180 psig
180 psig

570 GPM
400 GPM

150'

10'
20'

185 psig
185 psig

480 GPM
325 GPM

200'

10'
20'

190 psig
190 psig

440 GPM
280 GPM

Required
Lift

Pump
Press

Max. Fire
Flow1,2

30'

180 psig

800 GPM

35'

180 psig

680 GPM

40'

180 psig

590 GPM

48'

180 psig

250 GPM

See Application Challenge 3 (Previous Page) for setup.

Flow based on 6" hard-piped dry hydrant plus 10' hardsleeve connection.

NOTE: Using 6" supply line can increase unit output by decreasing line friction losses.

1 Theoretical, based on test curves of 9/21/99 and hose friction loss per NFPA® Fire Protection Handbook, 15th Edition, Table 17-7H, actual friction losses may vary depending upon hose and coupling design/manufacturer.

2 All flows achievable with 1,000 GPM rated pumper based on NFPA recommended pump curves. Use larger pumper where maintenance/ performance is questionable.

3 Minimum available flow from a water source recognized by ISO for grading purposes is 250 GPM. ISO does not recognize drafting sources requiring a lift in excess of 18' (This is not a drafting device as it operates under pressure.)

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Trevose, PA 19053 USA
Tel: (215) 639-0900
Fax: (215) 639-1597
email: turbodraft@s-k.com

 

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