Velan Inc' Torqseal TripleOffset Butterfly Valves

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Velan Inc.Torqseal Triple-Offset Butterfly
Valves Cost Reduction Design Optimization
Joni Yosypiw Alexandre Karam Michael
DellElce Philippe-Alexandre VerreaultVittendra
Nath Varma
Gordon Stovel Jean-Pierre SalameSimon Bricteux
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Agenda
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Velan
Leading Manufacturer of Industrial Steel
Valves Gate Globe Check Ball Knife
Butterfly Sales over 400M Plants in
Canada, U.S.A, Europe Asia Nuclear
Component Certification by ASME
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Torqseal Butterfly - Features
3-48 Inches
Stellite Hard-Faced Seat
No Cavity
Nitrided Shaft Bearings
Resilient LaminatedGraphite Disc Seal
One-Piece Shaft
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Using the VE Framework
5 Fewer Components Eliminated Pre-Assembly
Step Estimated Cost Savings per Valve
15
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Objectives
Simplify Stem-Disc Connection Eliminate
Stem-Disc Pre-Assembly Minimize Part Count
Assembly Time Explore Opportunities for
Overall Cost/Design Optimization
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Functional Diagram
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Functional Diagram
?
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Associated Costs
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Cost Breakdown
ModulateAperture15
EnsureReliability9
Includes Material Labour Machining
Finishing Assembly
CreateSeal34
ContainFluid39
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Brainstorming
What are the best ideas?
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Evaluation
Gut-Feel Index Feasibility Advantages
Disadvantages Risks Impact What are the
cost savings?
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Cost Savings
Example Plated Seat (Dollars Standardized to
1000)
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Solutions
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A Stem Shoulder
ThrustBearing
AThrustBearing
Fasteners
Locking Plate
Shoulder
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B Plated Seat
Plated Seat
BSeat
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C Single Part Packing Flange
Nut
Stud
Packing Flange
Packing
GlandBushing
CPackingFlange
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D Disc-Stem Assembly
DDisc-StemConnection
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D Guided Disc
Milled Flat
DDisc-StemConnection
Extended Bushings
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D 2-Part Disc
Holding Plate
DDisc-StemConnection
Milled Flat
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D Fasteners
Socket-Head Cap Screws
DDisc-StemConnection
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Scenario Comparison
STD
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Recommendation
Eliminated Pre-Assembly Reduced Part Count
Estimated Cost Savings per Valve (8) 15
STD 94
STD 9
STD 5
STD 51
STD 159
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Thank You