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“Dash Size” Definitions  For Hose the number of  SIXTEENTHS of an inch in  the Inside Diameter. For Threads or Connectors  with Imperial Dimensions a) JIC, SAE Threads, ORFS,  UNO: the number of  SIXTEENTHS of an inch in  the size of the Male  Thread b) BSP, NPT, SAE Flange: the  number of SIXTEENTHS of  an inch in the Nominal  Size of the Connector. c) Tubing and Tube Bite: the  number of SIXTEENTHS of  an inch in the Outside  Diameter of the Tube. For Threads or Connectors  with Metric Dimensions a) the number of  MILLIMETRES in the OD of  the Male Thread. (pitch of  thread is sometimes  included) b) Tubing and Tube Bite: the  number of MILLIMETRES in  the Outside Diameter of  the Tube.

Higher Technology Equals Greater Performance!

A common misconception is that IF a coupling matches to a hose that meets SAE or EN (DIN) specification THEN that coupling will match with ALL hydraulic hoses that meet that specification. Conversely, IF a hose that meets SAE or EN (DIN) specification matches to a coupling THEN that hose will match with ALL couplings made for hoses within that specification. THIS IS SIMPLY NOT TRUE. As stated in SAE J517, the specification for Hydraulic Hose: ”?SAE J517 hose from one manufacturer is usually not compatible with SAE J516 connectors supplied by another manufacturer. It is the responsibility of the (hose assembly) fabricator to consult the manufacturer's written instructions or the manufacturers directly before intermixing hose and connectors from two manufacturers”?. There are various societies and organisations that develop specifications for Hydraulic Hose. The major ones are: SAE The Society of Automotive Engineers EN European Normes (based on the former DIN German standards) ISO International Organization for Standardization AS Australian Standards These standards cover the performance specifications and dimensional tolerances of Hydraulic Hose. SAE dimensional tolerances are the most widely used. EN, ISO and AS dimensional tolerances are similar to the corresponding SAE standard. Therefore, it is generally possible to meet the dimensional tolerances of these standards with a single series of hose. In the main, EN (DIN) standards have higher working pressures than their corresponding SAE standards. Dimensional tolerances of these standards are quite broad. Hoses not manufactured to tight tolerance control may still meet these standards, but will perform poorly due to compression variations and will have assembly difficulties. This is not commonly understood. Hence, the common misconception stated above. RYCO Hydraulics has its own Hydraulic Hose Specification. RYCO dimensional tolerances are much tighter than SAE or EN, and often have higher maximum working pressures. Close tolerancing enables RYCO to provide higher performance Hydraulic Hose. RYCO Couplings are designed to match technically superior RYCO Hydraulic Hose. Superior technology gives Safer, Stronger and Longer Lasting Hose Assemblies.

DO NOT MIX/MATCH hose and couplings from one manufacturer

with hose and couplings from another manufacturer.
RYCO Hose is matched to RYCO Couplings 
RYCOHead hose2 hose1 Flare
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CENTRAL QUEENSLAND HYDRAULICS

As well as selling new parts and components, we also service and rebuild all the products we sell. We have a comprehensive spare parts and exchange parts service. And all work is guaranteed.
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All types of hydraulic tooling. Hydraulic cylinders of all shapes and sizes. Hydraulic fittings and hoses.
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Higher Technology Equals Greater Performance!

A common misconception is that IF a coupling matches to a hose that meets SAE or EN (DIN) specification THEN that coupling will match with ALL hydraulic hoses that meet that specification. Conversely, IF a hose that meets SAE or EN (DIN) specification matches to a coupling THEN that hose will match with ALL couplings made for hoses within that specification. THIS IS SIMPLY NOT TRUE. As stated in SAE J517, the specification for Hydraulic Hose: ”?SAE J517 hose from one manufacturer is usually not compatible with SAE J516 connectors supplied by another manufacturer. It is the responsibility of the (hose assembly) fabricator to consult the manufacturer's written instructions or the manufacturers directly before intermixing hose and connectors from two manufacturers”?. There are various societies and organisations that develop specifications for Hydraulic Hose. The major ones are: SAE The Society of Automotive Engineers EN European Normes (based on the former DIN German standards) ISO International Organization for Standardization AS Australian Standards These standards cover the performance specifications and dimensional tolerances of Hydraulic Hose. SAE dimensional tolerances are the most widely used. EN, ISO and AS dimensional tolerances are similar to the corresponding SAE standard. Therefore, it is generally possible to meet the dimensional tolerances of these standards with a single series of hose. In the main, EN (DIN) standards have higher working pressures than their corresponding SAE standards. Dimensional tolerances of these standards are quite broad. Hoses not manufactured to tight tolerance control may still meet these standards, but will perform poorly due to compression variations and will have assembly difficulties. This is not commonly understood. Hence, the common misconception stated above. RYCO Hydraulics has its own Hydraulic Hose Specification. RYCO dimensional tolerances are much tighter than SAE or EN, and often have higher maximum working pressures. Close tolerancing enables RYCO to provide higher performance Hydraulic Hose. RYCO Couplings are designed to match technically superior RYCO Hydraulic Hose. Superior technology gives Safer, Stronger and Longer Lasting Hose Assemblies.

DO NOT MIX/MATCH hose and couplings from one manufacturer

with hose and couplings from another manufacturer.
RYCO Hose is matched to RYCO Couplings 

Hydraulic Hose and Coupling Tolerancing

hose2 hose1 Flare
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