the basics of fittings - Сolumbia machine · 2012. 3. 26. · the basics of fittings . what is a...
TRANSCRIPT
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Objectives
• What is a fitting? What is its function?
• Fitting Types & Components
• Fitting Sealing Methods
• Fitting Nomenclature
The Basics of
Fittings
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What is a fitting?
What is its function?
The purpose of a hose fitting is to connect hose to
fluid power systems. The fitting must provide a
leak-proof seal at the hose and
the system interfaces for the
system to operate properly.
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Field Attachable (aka Reusable)
Crimp (aka Permanent)
2-piece
3-piece
(Mandrel Style)
Barbed
(with Clamp)
Barbed “Push-Lok”
(Clampless)
1-piece
2-piece
Fitting Types &
Components
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Field Attachable (aka Reusable)
2-piece
3-piece
(Mandrel Style)
Barbed
(with Clamp)
Barbed “Push-Lok”
(Clampless)
Nipple Socket
Fitting Types &
Components
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Field Attachable (aka Reusable)
2-piece
3-piece
(Mandrel Style)
Barbed
(with Clamp)
Barbed “Push-Lok”
(Clampless)
DB Clamp
HC Clamp
Fitting Types &
Components
88 Series Barbed
Nipple
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Field Attachable (aka Reusable)
2-piece
3-piece
(Mandrel Style)
Barbed
(with Clamp)
Barbed “Push-Lok”
(Clampless)
82 Series Push-
Lok Fitting
Fitting Types &
Components
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Crimp (aka Permanent)
1-piece
2-piece
Crimp fitting comprised of
nipple and shell components
Fitting Types &
Components
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Crimp (aka Permanent)
1-piece
2-piece
• Parker offers one-piece through the
cover permanent fittings referred
to as Parkrimp fittings – provide a metal to metal grip that bites the
wire reinforcement
– manufactured to have gripping teeth that
deflect to insure the integrity of the crimp
– manufactured to have a low profile design
Fitting Types &
Components
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Crimp (aka Permanent)
1-piece
2-piece
88 Series Barbed
Nipple 81 Series Shell
Fitting Types &
Components
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5 Common Sealing Methods:
• Pipe Thread
– mechanical metal to metal seal that grips and seals on the threads
– limited reusability
– not recommended for “Leak-Free” Technology
• uses thread sealant or Teflon tape
– least expensive
– examples:
• “01”
• “13”
Fitting Sealing
Methods
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• Flared – metal to metal seal by using the interface of the two angular surfaces
– more reusability (compared to pipe threads)
– dual seat
• 37 degree (industrial standard)
• 45 degree (automotive standard)
• exceptions: -6 and -12
– examples:
• “06”
• “08”
Fitting Sealing
Methods 5 Common Sealing Methods:
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• SAE Straight Threads with O-Ring
– creates a seal by compressing an o-ring into the mating female
port
– more reusability
– recommended for “Leak Free” Technology
• no need for thread sealant/Teflon tape
– example:
• “05”
• “0L”
Fitting Sealing
Methods 5 Common Sealing Methods:
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• “Seal-Lok” O-Ring Face Seal (ORFS) – creates a seal by compressing the o-ring against the flat surface of
the mating fitting
– “unlimited” remakeability
– recommended for “Leak Free” Technology
– example:
• “JC”
• “JS”
• “J9”
Fitting Sealing
Methods 5 Common Sealing Methods:
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• Flanges – creates a seal by compressing the o-ring against the port
– recommended for “Leak Free” Technology
– examples:
• “4A”
– “A” indicates straight
• “6N”
– “N” indicates 90 degree
• “XF”
– “F” indicates 45 degree
Fitting Sealing
Methods 5 Common Sealing Methods:
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• Flanges (continued) – Code 61 3,000 - 5,000 psi
• plain flange head
– High Pressure Code 61 5,000 psi
• vertical knurling
– Code 62 6,000 psi (1”-2” hose)
• horizontal groove
• different bolt hole pattern & thicker flange
– CAT Caterpillar Style
• “XXXX” marking
– Proprietary Komatsu, Kobelco
Fitting Sealing
Methods 5 Common Sealing Methods:
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Fitting
Nomenclature
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Fitting
Nomenclature
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Fitting
Nomenclature
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Fitting
Nomenclature
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Fitting
Nomenclature
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Fitting
Nomenclature
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Fitting
Nomenclature
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Fitting
Nomenclature
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Fitting
Nomenclature
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What’s New
with Fittings?
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What’s New
” ”
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Are there any questions or
comments?
Thank You !
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