victaulic grooved piping implications for workforce management
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Grooved Piping Implications For Workforce ManagementTRANSCRIPT
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Grooved piping implications for workforce management
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Grooved Construction Reduces Field Manhours
Total Field Manhours
Civil / Structural
Equipment
Electrical
Piping
Large Component of Total Manhours
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Grooved Construction Reduces Risk & Contingency
“Variable” Costs• Risk-Intensive
• High Contingency Factors
• Exposure
"Fixed" vs. "Variable" Costs - Welded
Labour“Variable” Costs: 60%
Material“Fixed” Costs: 40%
WELDED
“Fixed” Costs• Reduced Risk
• Low Contingency Factors
• Reduced Exposure
GROOVED"Fixed" vs. "Variable" Costs - Grooved
GROOVED
Material“Fixed” Costs: 60%
Labour“Variable” Costs: 40%
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Grooved Method History British War Department sought faster way to join pipe in WWI
– Rapid deployment of water and fuel to front lines
– Faster than welding or threading
VICTAULIC company name– “VICTory Joint” for use on hydrAULICs
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Anatomy of a Grooved Joint
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Roll Grooving Technology
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Grooved Coupling Assembly
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Grooved 2 to 60-inch
Mechanical Joining Methods
Pressed ½ to 2-inch
Plain or ringed end 16 to 192-inch +
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Customers & Specifiers
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Hoover Dam
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Ontario Power Generation Healey Falls G.S.
145” Penstock Expansion Joints
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Canoe Creek Run-of-RiverBritish Columbia
36” Grooved Penstock
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GTAA Cogen PlantOntario, Canada
• Cooling Water
• Circulating Water
• Service Water
• City Water
• Plant Air
• Instrument Air
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FACT: The average age of welders is 54.*
* According to the American Welding Society
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Skilled Labour AllocationSpecialized Welders
Pipefitters
Systems/Applications: (P91)
Steam NG Hydrogen
Systems/Applications: Cooling Water Compressed Air Water Treatment Fire Water Domestic Water Process Water (Penstocks)
Crew Mix: Specialized Welder Pipefitter (journeyman)
Crew Mix: Journeyman Fitter Apprentice
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Schedule Impact with Grooved Construction
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Case StudyPortlands Energy Centre
Toronto, Ontario, Canada
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Portlands Energy CentreToronto, Ontario, Canada
• Challenged with schedule restraints
• Allocated available welders for P91 systems, pipefitters for grooved systems
• Press system allowed for two-person crew team, rather than three-person team
• Plant was delivered ahead of schedule
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John MacFarlandPower Market [email protected]
Resources:www.victaulic.com www.compressedschedule.com
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Grooved piping implications for workforce management