compressed air fill station operation by tom curtis
TRANSCRIPT
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Compressed Air Fill Station Operation
By
Tom Curtis
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Objectives
• Demonstrate external visual inspection
• Identify safe filling techniques
• Identify safe transportation guidelines
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SCUBA cylinder rupture
Riviera beach Florida
February 1, 1998
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SCBA Cylinder RuptureAllegan Fire Department
September 4, 1997
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Cylinder Inspection
• Cylinder type
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Composite Cylinder
• Aluminum liner that is rapped by carbon fiber or fiberglass.
• 4500 or 2216 psi.
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Solid Wall Cylinder
• Low pressure • 2216 psi
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Cylinder Inspection
• Cylinder type• Service pressure
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Look Here for Service Pressure!
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Oxygen Cylinder
• Stamped information on the dome.
• Includes: service pressure, serial number, manufacture and permit number.
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Low Pressure Cylinder Gauge.
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High Pressure Cylinder Gauge
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Cylinder Inspection
• Cylinder type• Service pressure• Hydro test date
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Stamped Hydro Test Date
• Stamped on dome of solid wall cylinders
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Cylinder Inspection
• Cylinder type• Service pressure • Hydro test date• Manufacturer
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SCI Cylinder
• Three year hydro
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Luxfer Cylinder
• Five year hydro
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They May Look the Same!
• Take the time to look for the manufacturer and hydro date.
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Aluminum Cylinders
• 5 year hydro
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Cylinder Inspection
• Cylinder type• Service pressure • Hydro test date• Manufacturer• Cuts and gouges
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Cuts, Gouges and Scrapes.
• .005 inches.• Sent to the shop for
gel coat repair.
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BreakJust 10 Min.Be Back At:
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Fill Station Operation
Safety rules
• Hearing protection• Respect the “whip”• Keep area clean
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SCBA Connection
• Rated at 4500 psi
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SCUBA Yoke
• Most rated at 3000 psi
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Low Pressure SCBA Adapter
• “Pop off” regulator is set for 2216 psi.
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Low Pressure SCBA Adapter
• The adapter has the same 4500 psi rated connection as the high pressure whips.
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Station 14 SCBA Fill Station
• Open donor cylinder bank first.
• Crack fill gauge to proper rate.
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Oxygen Fill Station
• Regulated fill rate of 300-600 psi/min.
• Will have vacuum system installed.
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300 to 600 psi Per Min
• One unit on this gauge is 100 psi
• It should take 10 to 20 seconds for each 100 psi unit
• To fill a high pressure SCBA cylinder from 0 psi it will take @ 10 min.
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Filling a Cylinder
1. Cylinder inspection
2. Cylinder connection
3. Open cylinder valve
4. Open lowest donor cylinder bank first
5. Open the fill valve at 300 – 600 psi/min
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Handle With Care.
• Would you use an artillery shell as a wheel chock.
• Kinetic energy stored in a full 80 cubic foot cylinder exceeds one million foot pounds.
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Transportation of Cylinders
• Regulations for commercial transporters
• Practical application in the fire department would be:– Vertical
– Protected contact with other cylinders
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The End