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Hydraulic Hose Fitting Compatibility Guide
Selecting the right fitting for your hydraulic hose is as important as selecting the hose itself. The wrong combination can reduce pressure ratings, create leak points, or cause premature failure in service. This guide covers what you need to know to match fittings to hose series, understand how fitting type affects performance specifications, and order with confidence.
Why Fitting Compatibility Matters
Hydraulic hose assemblies are only as reliable as their weakest connection. A hose rated for a given working pressure assumes a compatible fitting. When a non-specified fitting is used, that rating may no longer apply. On hoses like the Aeroquip GH793 MatchMate series, for example, burst pressure reaches 12,500 PSI with Global fittings but drops to 9,000 PSI with other fitting types. That difference matters in high-pressure applications where operating conditions push against rated limits.
Fitting compatibility affects more than pressure ratings. Thread type, end configuration, and installation method all need to align with the hose series and the port or component being connected. Getting that right before assembly saves time, reduces the risk of rework, and keeps the system performing as specified.
Aeroquip GH793 MatchMate burst pressure
12,500 PSI
With Global fittings
9,000 PSI
With other fitting types
Fitting Types Overview
Global Fittings
Global fittings are a widely used standard in hydraulic hose assemblies and are the specified fitting type for several Aeroquip hose series including the GH793 MatchMate. When a product page lists a burst pressure that applies specifically with Global fittings, using a different fitting type will reduce that rating. Global fittings are available in a range of thread configurations and end types to suit most industrial and mobile hydraulic applications.
Global TTC Fittings
Global TTC (Reusable) fittings are designed for field assembly without the need for specialized crimping equipment. They are compatible with select hose series including the Aeroquip AQP 2661 suction hose and are installed using T-Bolt or preformed clamps. Global TTC fittings are a practical choice for maintenance environments where assemblies may need to be made or replaced in the field.
Shank Type Combination Nipples
Shank type combination nipples are commonly used with suction and transfer hose, including SAE 100R4 rated hose. They work in conjunction with clamp-style installation and are suited to lower-pressure suction and return line applications where a reusable, field-serviceable connection is needed.
Crimped Fittings
Crimped fittings are the standard for most high-pressure hydraulic hose assemblies. They require a compatible crimping machine and die set matched to the hose series and fitting. Crimped assemblies offer a permanent, reliable connection and are the preferred choice for pressure lines in mobile and industrial hydraulic systems.
How to Match Fittings to Your Hose Series
Start with the hose manufacturer's specification. Each hose series has a defined list of compatible fittings, and using a fitting outside that list can affect the assembly's rated performance. Key factors to confirm before selecting a fitting include:
If you are building a new assembly, the hose manufacturer's fitting compatibility chart is the most reliable starting point. If you are replacing an existing assembly, matching the original fitting specification is the safest approach unless there is a reason to change.
Fitting Compatibility by Hose Series
| Hose Series | Standard | Dash Sizes | Working Pressure | Compatible Fittings | Burst Pressure (Global) | Burst Pressure (Other) | Installation Method |
|---|---|---|---|---|---|---|---|
| Aeroquip GH793 MatchMate | SAE 100R2AT | -12, -16 | Up to 3,125 PSI (-12)/2,500 PSI (-16) | Global fittings | 12,500 PSI | 9,000 PSI | Crimped |
| Aeroquip AQP 2661 | SAE 100R4 | -20 | Up to 200 PSI | Global TTC, shank type combination nipples | N/A | N/A | T-Bolt or preformed clamps |
Common Fitting Compatibility Questions
Does fitting type affect my hose's pressure rating?
Yes. Many hose series carry a pressure rating that is specific to a designated fitting type. Using a non-specified fitting can reduce the burst pressure rating and may affect the working pressure rating of the assembly. Always confirm fitting compatibility before building or ordering an assembly.
Can I use any brand of fitting with my Aeroquip hose?
Aeroquip hose series are typically specified with Aeroquip or Global fittings to ensure the assembly meets published pressure ratings. Using third-party fittings may affect performance and could void any applicable product warranty. When in doubt, consult the manufacturer's compatibility documentation or contact us for guidance.
What is the difference between Global and Global TTC fittings?
Global fittings are typically crimped onto the hose using a crimping machine and are the standard for permanent high-pressure assemblies. Global TTC fittings are reusable and designed for field installation without crimping equipment, making them better suited to maintenance environments or applications where assemblies need to be replaced in the field.
How do I know which dash size fitting to order?
Fitting dash size corresponds to the hose inner diameter. A -12 dash size fitting is designed for a 0.75 inch ID hose, and a -16 dash size fitting is designed for a 1.00 inch ID hose. Always match the fitting dash size to the hose dash size unless the manufacturer's specification indicates otherwise.
What if I need help selecting a fitting for my application?
Contact our team with your hose series, dash size, system pressure, and end connection requirements and we can help confirm the right fitting for your application.
Still not sure which fitting your assembly needs?
Contact our team with your hose series, dash size, and system pressure and we can confirm the right fitting.