Doylestown Fire Company

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Doylestown Fire Company
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Pump Operations
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HydrantsColor / Flow

• Blue
• 1500 gpm
• Green
• 1000 gpm 1500 gpm
• Orange
• 500 gpm 1000 gpm
• Red
• 250 gpm 500 gpm
• Black
• Static 250 gpm

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HydrantsColor / Flow

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General Information

• Friction Loss
• Each Appliance 20 psi loss
• 10 psi loss per story
• L-79 _at_ elevation and extension has
  30 psi loss

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General Information

• Miscellaneous
• 5 hose takes 1 gallon per foot to fill
• Engine to engine supply should use 3 hose
• Deployment of 5 should be at 30 mph
• Always try to keep 20 psi residual coming into
  your truck

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Operating Pressures

• TFT
• 100 psi at the tip

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Operating Pressures

• Straight Bore
• 50 psi at the tip

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Operating Pressures

• Ground Monitor
• 100 psi at the tip with TFT
• 80 psi at the tip with Straight Bore

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Operating Pressures

• Push Back Pressure is Approximately
• ½ the Operating Pressure at the Tip
• (100 psi 50 lbs force)

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5 Supply Line

• Friction Loss
• Water Flow

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5 Supply Line

• Friction Loss
• 500 gpm 3 psi / 100 feet
• 1000 gpm 6 psi / 100 feet
• 1500 gpm 9 psi / 100 feet

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5 Supply Line

• Friction Loss
• 500 gpm 30 psi / 1000 feet
• 1000 gpm 60 psi / 1000 feet
• 1500 gpm 90 psi / 1000 feet

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3 Supply Line

• Friction Loss
• GPM Squared x Feet of Hose

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3 Supply Line

• Example 1
• 700 gpm, 500 feet of 3 hose, TFT stinger
• 7 squared 49 x 5 sections (500) 245 psi
• TFT 100 psi
• Appliance 20 psi
• Total 365 psi

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3 Supply Line

• Example 2
• 500 gpm, 700 feet of 3 hose, TFT stinger
• 5 squared 25 x 7 sections (700) 175 psi
• TFT 100 psi
• Appliance 20 psi
• Total 295 psi

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3 Supply Line

• Example 3 - Yamaha
• 100 gpm, 200 feet of 3 hose, 1 100 2 TFT
• 1 squared 1 x 2 sections (200) 2 psi
• TFT 100 psi
• Appliance 20 psi
• Total 122 psi

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Standpipe Operations

• Example 1 3rd floor parking garage 100 gpm
• 3 x 10 30psi 100psi (TFT) 20 psi
  (Appliance) 150 psi
• Example 2 6th floor of the court house 100
  gpm
• 6 x 10 60psi 50 psi (Straight bore) 20 psi
  (Appliance) 130 psi
• Example 3 6th floor of the court house 200
  gpm with TFT
• 70psi 100 psi (TFT) 60 psi 230 psi
• Example 3 6th floor of the court house 200
  gpm
• with Smooth Bore
• 70psi 50 psi (Smooth Bore) 60 psi 180 psi

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Standpipe Operations

• 10 psi per floor
• nozzle operating pressure
• friction loss per appliance

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Sprinkler System Operations

• Operating Pressure 150 psi

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