Download - Proper Hose Assembly Guidelines
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q This webinar will be available afterwards at www.fluidpowerworld.com & email
q Q&A at the end of the presentation q Hashtag for this webinar: #FluidPowerWebinar
Before We Start
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Meet your Speakers
MODERATOR FEATURED SPEAKER
Michelle DiFrangia Assistant Editor Fluid Power World
Josh Cosford Contributing Editor Fluid Power World
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Hydraulic hoses exist on nearly every hydraulic machine. It is critical to ensure hose assemblies are fabricated with care to ensure reliability of the hose and the hydraulic system they’re part of. This presentation covers the essentials of hydraulic hose assembly to ensure the machine is safe and dependable.
Proper Hose Assembly Guidelines
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-How to ensure the hose assembly is free from contamination
Proper Hose Assembly Guidelines
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-How to ensure the hose assembly is free from contamination -How to measure a fitting to ensure the most secure crimp
Proper Hose Assembly Guidelines
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-How to ensure the hose assembly is free from contamination -How to measure a fitting to ensure the most secure crimp -Which fittings are required for different types of hydraulic hose
Proper Hose Assembly Guidelines
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-How to ensure the hose assembly is free from contamination -How to measure a fitting to ensure the most secure crimp -Which fittings are required for different types of hydraulic hose -How to ensure finished hose length is accurate
Proper Hose Assembly Guidelines
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Identify what you need
Proper Hose Assembly Guidelines
Is it a new hose assembly?
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Identify what you need
Proper Hose Assembly Guidelines
Is it a new hose assembly?
Is it a replacement hose assembly?
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New hydraulic hose assemblies should be
chosen with consideration to their specific application
Proper Hose Assembly Guidelines
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Size Temperature Application Material Pressure Ends Delivery
Proper Hose Assembly Guidelines
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Size -includes the ID, OD and length -hose must be sized appropriately to handle flow with little pressure drop
Proper Hose Assembly Guidelines
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Size -cut off length is subtracted to obtain hose cut length
Proper Hose Assembly Guidelines
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Size -the cut off factor of each fitting is subtracted from total hose length
Proper Hose Assembly Guidelines
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Size Temperature -what is the temperature of the fluid? -what is the ambient temperature?
Proper Hose Assembly Guidelines
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Size Temperature -typical hydraulic hose is good for -40°F to 212°F (-40°C to 100°C)
Proper Hose Assembly Guidelines
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Size Temperature -high temperature hose is good for 300°F plus -for high ambient temperatures
Proper Hose Assembly Guidelines
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Size Temperature -low temperature hose is good for -58°F to 212°F -for cold ambient conditions
Proper Hose Assembly Guidelines
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Size Temperature Application -where is the hose used? -what is the required bend radius?
Proper Hose Assembly Guidelines
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Size Temperature Application -where is the hose used? -what is the required bend radius?
Proper Hose Assembly Guidelines
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Size Temperature Application -what are the external conditions? -is there a risk of abrasion, corrosion or electrical conductivity?
Proper Hose Assembly Guidelines
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Size Temperature Application Material -the type of fluid being used is critical to hose selection
Proper Hose Assembly Guidelines
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Size Temperature Application Material -standard mineral-based hydraulic fluid is compatible with most hose types
Proper Hose Assembly Guidelines
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Size Temperature Application Material -exotic fluids, like phosphate ester, require synthetic hoses, like EPDM
Proper Hose Assembly Guidelines
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Size Temperature Application Material Pressure E D
Proper Hose Assembly Guidelines
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-pressure capacity is the defining criteria for hydraulic hose -pressure dictates construction Pressure E D
Proper Hose Assembly Guidelines
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-hose construction dictates the pressure capacity of a hydraulic hose
Proper Hose Assembly Guidelines
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Size Temperature Application Material Pressure Ends D
Proper Hose Assembly Guidelines
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-type of threads -male or female -swivels -straights or elbows -permanent or reusable Ends D
Proper Hose Assembly Guidelines
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-reusable fittings are also called field attachable -crimped on fittings are permanent Ends D
Proper Hose Assembly Guidelines
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Size Temperature Application Material Pressure Ends Delivery
Proper Hose Assembly Guidelines
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-how many hose assemblies do you need? -how soon do you need them? -any special tagging or lay line information? Delivery
Proper Hose Assembly Guidelines
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-do not try to repair the old hose, unless absolutely necessary -follow the STAMPED protocol to ensure the correct replacement is made
Proper Hose Assembly Guidelines
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Cutting the hose -ensure only a specialized hose cutting saw is used
Proper Hose Assembly Guidelines
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Cutting the hose -ensure only a specialized hose cutting saw is used
Proper Hose Assembly Guidelines
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Cutting the hose -ensure you cut exactly 90° across the hose
Proper Hose Assembly Guidelines
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Crimp the hose to the specifications spelled out by the hose and fitting manufacturer
Proper Hose Assembly Guidelines
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Clean the hose assembly -use approved hose cleaning apparatus -immediately cap the hose ends to protect from environmental contamination
Proper Hose Assembly Guidelines
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Questions?
MODERATOR FEATURED SPEAKER
Michelle DiFrangia Assistant Editor Fluid Power World
Josh Cosford Contributing Editor Fluid Power World
#FluidPowerWebinar
q This webinar will be available at www.fluidpowerworld.com & email
q Tweet with hashtag #FluidPowerWebinar
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q Discuss this on EngineeringExchange.com
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