How to Select Hose Fittings Image Credit: Parker Hannifin | CEJN Industrial Corporation. | DME Company   Hose fittings connect runs of hose to other hose sections, equipment, or other components. Systems are typically configured with straight sections connected by fittings or specially formed connections and joints.   Hoses vs. Tubes and Pipes To begin, it may be important to distinguish some terminology. In industry, "tube" and "pipe" are nearly...
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Q & A on Hose Fittings

We asked our users for their input on Hose Fittings. Here are the results of 218 users familiar with Hose Fittings.

Who Took Our Poll? | Design Trends | Applications and Use | Features | Buying Advice

Who Took Our Poll?Top

Design TrendsTop

Q:
What new technologies are influencing hose fitting design?
35 answers
Answers:
Machinery is becoming lighter and more compact, this makes it necessary to have a greater selection of fittings to allow the assembly of hydraulic components into smaller spaces Also hydraulic systems keep using higher pressures.
~Chris J., Builder/Contractor, Edmonton, Canada
Surface treatments are becoming more environment friendly and long lasting, new oils are more aggressive, some hose lines are only manufacturer rated -> no standard specifications.
~Sampsa V, Technical Support, Tre, Finland
The hose ends and adapters have been upgraded, however that may be just to justify purchasing different hose ends and making life more difficult for the end user. Working pressure is improving as well as hose flexibility.
~Bill T, Fleet Manager, Lakewood, WA
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Q:
From your perspective, which companies are creating the most innovative hose fittings?
33 answers
Answers:
Manuli, Parker, Legris, Festo
~Alan E, General Management, Monterrey, Mexico
Dixon, Dry-Link, Hanson, PT Couplings, Aeroquip, Parker hannifin
~Steve M, Marketing/Sales, Bakersfield, CA
Parker is the leader, and Gates seems to be doing their part too.
~Bill T, Fleet Manager, Lakewood, WA
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Applications and UseTop

Q:
What are some of the applications you have used hose fittings for?
46 answers
Answers:
Oil field production and refining and petroleum distribution, food grade raw material and finished product, steam service, hydraulic / fluid power, construction. mining chemical manufacturing.
~Steve M, Marketing/Sales, Bakersfield, CA
FedEx freighter main deck fire cargo suppression system. TSM's Minifides 386 military vehicle fire detection and suppression systems.
~Engineering, Consulting, Germantown, TN
Brakes, nitrous, oil, fuel, water on race cars of all types. Street Rods, muscle cars, pickups, motorcycles, Off Road racing, motocross bikes, and regular street vehicles.
~Gordon C., Purchaser, San Antonio, TX
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Q:
Please share with us any “non-standard” applications that hose fittings have been used for.
14 answers
Answers:
Most non-standard applications have been mis-applications where the wrong fitting has been selected for the wrong application, (example) cam and groove fittings used as the connection in a freon 11 transfer/loading operation, (example) Chicago style fittings being used for steam service.
~Steve M, Marketing/Sales, Bakersfield, CA
In an emergency temp state of mind, we have used hydraulic hose in water of coolant systems. I am sure that isn't all but that is all I can recall at the moment.
~Bill T, Fleet Manager, Lakewood, WA
Fittings & adapters modified / used to make up gear for streamlining or easing the task of servicing, repairing, maintaining machinery / equipment.
~Bob G, Technical Support, Brisbane, Australia
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Q:
Do you know of any disastrous mistakes that occurred due to the incorrect usage of hose fittings?
22 answers
Answers:
Under tightening is the number 1 failure of fittings and costs millions of dollars a year in leaks.
~Michael A, Process Engineer, Chaska, MN
There have been instances of Chicago fittings being used for steam service in place of traditional ground joint fittings typically used for steam service. Chicago fittings are designed for air service, connect with a 1/2 turn, seal with matching rubber gaskets in each fitting, the fittings are not for steam service and the gaskets are compounded for high temperatures. These fittings are easily unintentionally disconnected during routine steam service which leads to a whipping and burn hazard, and resultant serious injury and fatalities.
~Steve M, Marketing/Sales, Bakersfield, CA
It is CRITICAL that port specifications on all hydraulic components be listed on the drawing! I know of a case where a steering motor with straight thread O-ring ports... thread size was called out, but not the port spec that designated how to make the O-ring groove up by the spotface/counterbore. The wrong adapters were easy to install and torque up, but they soon leaked. NOT GOOD ON A STEERING MOTOR.
~Design Engineer, Jackson, MN
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FeaturesTop

Q:
What would your design or feature "wish list" be for this product?
26 answers
Answers:
Higher working pressure, One piece non braze design for high pressures. Wider selection of metric ends.
~Keith M, Manufacturer, Columbus, OH
Better sealing of braided hoses to hose ends. a snap lock feature to make joining of hose to ends easier.
~Peter Saunders, Home mechanic, Adelaide, Australia
Global movement away from oddball parts like M26 Straight thread O-ring ports and taper pipe threads. Stateside availability of "Banjo" fittings is POOR, but we need these for tight packaging situations.
~Design Engineer, Jackson, MN
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Q:
Is there any advice you want to share with users to help them avoid common errors in selection or usage of hose fittings?
22 answers
Answers:
Using the "STAMPED" acronym one can resonably expect to determine the correct hose fitting for a specific application, which should also be verified by checking the fitting manufacturers specifications, coupling instructions along with that of the hose.
~Steve M, Marketing/Sales, Bakersfield, CA
Speak to the supplier early on any new developments so that the hose / fittings can be designed so that they are standard and met the applications requirements. :Leaving it late can and often does result in specials being required!!!!!
~Ray S, Marketing/Sales, Swindon, England
When ordering from remote locations take nothing for granted. give exact dimensions, draw a picture, make sure supplier understands, don't send unless sure.
~Bob G, Technical Support, Brisbane, Australia
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Buying AdviceTop

Q:
Do you have any advice for people relative to buying or using hose fittings?
20 answers
Answers:
Align yourself with a reputable supplier, and have them install a hose assembly machine in your shop AT THEIR EXPENSE. Give your designers a list of preferred parts and make it difficult [but not impossible] to use any other fittings.
~Design Engineer, Jackson, MN
Use the internet to identify what you think you want, but then talk to the manufacturer, because you need to get over your exact requirement and ensure the needs of the application can be met.
~Ray S, Marketing/Sales, Swindon, England
Learn and understand the systems you are working on and maintaining. Select hose and fittings that either match or upgrade the system for flow and pressure protection.
~Bill T, Fleet Manager, Lakewood, WA
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