Demystifying Hydraulic Hose Abbreviations: What You ...

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In the filed of hydraulic hose industry, the hydraulic hose abbreviations are frequently used to denote specific characteristics or properties.

Here are a few common ones you need to know about the hydraulic hose industry:

Standard Organizations

AbbreviationFull NameDescriptionSAESociety of Automotive EngineersSets standards for hydraulic hoses specifying construction, material, dimensions, and pressure ratings.ENEuropean NormStandards set by the European Committee for Standardization. Specific for hydraulic hoses.ISOInternational Organization for StandardizationSets international standards including those for hydraulic hoses.JISJapanese Industrial StandardsStandards used in Japan for hydraulic hoses and fittings.DINDeutsches Institut für NormungThe German Institute for Standardization, another set of standards for hydraulic components.RMARubber Manufacturers AssociationProvides standards for rubber products, including some types of hydraulic hoses.

Related:

Hydraulic Hose EN Standards

Hydraulic Hose SAE Standards

Hydraulic Hose Fitting Abbreviations

AbbreviationFull NameDescriptionJICJoint Industrial CouncilRefers to a standardized fitting often used on hydraulic hoses.NPTNational Pipe ThreadA type of thread commonly used in hydraulic systems.BSPBritish Standard PipeA type of thread used in many hydraulic systems, especially those using British standards.ORFSO-Ring Face SealA type of fitting that provides a very secure, leak-free connection.STCSnap to ConnectA type of hydraulic hose fitting that is designed for easy connection and disconnection.UN/UNFUnified National (Fine)A type of thread used on some hydraulic hose fittings.FJFace Seal JackA type of hydraulic hose fitting.MJMale JICA type of fitting for hydraulic hoses.

Related:

The Complete Guide About Hydraulic Hose Fittings

How to Identify Hydraulic Hose Fittings

Materials Used

AbbreviationFull NameDescriptionPTFEPolytetrafluoroethyleneA type of polymer often used in the construction of hydraulic hose due to its high temperature resistance and smooth surface.NBRNitrile Butadiene RubberA type of synthetic rubber often used in the construction of hydraulic hoses due to its oil resistance.EPDMEthylene Propylene Diene MonomerSynthetic rubber used in the construction of hydraulic hoses, known for its resistance to heat, weathering, and chemicals.CRChloroprene Rubber (Neoprene)Synthetic rubber, commonly used in manufacturing hydraulic hoses due to its good physical toughness and resistance to oils.FKMFluoroelastomerA class of synthetic rubber designed for very high temperature operation and excellent chemical resistance. Often used in the seals of hydraulic fittings.

Related:

What Is Hydraulic Hose Made of?

Pressure Ratings

AbbreviationFull NameDescriptionPSIPounds per Square InchA measure of pressure.WPWorking PressureThe maximum pressure that a hose or system can operate under normal conditions.BPBurst PressureThe pressure point at which a hose will rupture or fail.MWPMaximum Working PressureThe maximum pressure that a hydraulic hose can withstand during normal operation.

Related:

Hydraulic Hose Pressure Rating: Working Pressure Vs Bursting Pressure

Miscellaneous

AbbreviationFull NameDescriptionIDInner DiameterA measure of the inside diameter of the hose.ODOuter DiameterA measure of the outside diameter of the hose.MTOPMean Time to OperateThe average time it takes a system to operate, often used in assessing the efficiency of a hydraulic system.

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SAE and EN

Here are several hydraulic hose standard abbreviations that are used to denote different types of hydraulic hoses. Note that most of these standards are developed by the Society of Automotive Engineers (SAE) or European Committee for Standardization (EN).

AbbreviationFull NameDescriptionSAE 100R1SAE 100R1 Hydraulic HoseThis type of hose is suitable for carrying hydraulic fluids, including glycol, mineral oils, fuels, lubricants, emulsion, hydrocarbons, etc. Suitable for high pressure.SAE 100R2SAE 100R2 Hydraulic HoseThis hose is typically used in high-pressure hydraulic oil lines.SAE 100R3SAE 100R3 Hydraulic HoseThis hose is used in low-pressure hydraulic lines for anti-freeze, water, or fuel.SAE 100R4SAE 100R4 Hydraulic HoseThis is a suction and return line hose.SAE 100R5SAE 100R5 Hydraulic HoseThis hose is reinforced with one braid of textile and one braid of steel wire. It&#;s used for medium pressure applications.SAE 100R6SAE 100R6 Hydraulic HoseThis hose is used for low-pressure hydraulic lines for anti-freeze, water, or fuel.SAE 100R7SAE 100R7 Hydraulic HoseThis is a thermoplastic hose suitable for use with petroleum, water, and synthetic based hydraulic fluids.SAE 100R8SAE 100R8 Hydraulic HoseThis hose is high-pressure thermoplastic hose that should be used with synthetic, petroleum, and water-based hydraulic fluids within a temperature range from -40 to 93°C.SAE 100R9SAE 100R9 Hydraulic HoseThis type of hose is used for high-pressure hydraulic applications.SAE 100R12SAE 100R12 Hydraulic HoseThis hose is suitable for high-pressure applications subject to surges or flexing such as construction equipment, mining, and the high-performance industrial market.SAE 100R13SAE 100R13 Hydraulic HoseThis is a high-pressure hydraulic hose suitable for applications where high levels of pressure are required.SAE 100R14SAE 100R14 Hydraulic HoseThis is a type of hydraulic hose that uses stainless steel wire and follows specific dimensions and performance characteristics set by SAE.SAE 100R15SAE 100R15 Hydraulic HoseThis hose is suitable for very high-pressure applications subject to pressure surges and flexing.SAE 100R16SAE 100R16 Hydraulic HoseThis hose is suitable for high-pressure hydraulic applications where tight bends and higher flexibility is required.EN 853 1SNEN 853 1SN Hydraulic HoseThis type of hose is suitable for carrying hydraulic fluids, including glycol, mineral oils, fuels, lubricants, emulsion, hydrocarbons, etc. Suitable for high pressure.EN 853 2SNEN 853 2SN Hydraulic HoseThis type of hose is suitable for medium-pressure hydraulic applications including mobile, machine tool and agricultural applications.EN 856 4SPEN856 4SP Hydraulic HoseThis type of hose is suitable for high-pressure hydraulic applications.EN 856 4SHEN 856 4SH Hydraulic HoseThis hose is suitable for high-pressure applications with tight bends owing to its flexibility.

SN SC SH SP

AbbreviationAssociated StandardsDescriptionSNEN 853 (e.g., EN 853 1SN, 2SN)&#;SN&#; usually stands for hoses according to EN 853, suitable for various hydraulic applications, often used in high-pressure situations.SCEN 857 (e.g., EN 857 1SC, 2SC)&#;SC&#; refers to compact hoses, like those in the EN 857 standard, used when space is at a premium and a tighter bend radius is needed.SHEN 856 (e.g., EN 856 4SH)&#;SH&#; is often used for EN 856 hoses, suitable for high-pressure hydraulic applications with tighter bend radius requirements.SPEN 856 (e.g., EN 856 4SP)&#;SP&#; typically refers to hoses like EN 856 4SP, which are intended for high-pressure hydraulic applications with high performance needs.

Please keep in mind that these are general explanations. The specific capabilities, properties, and appropriate uses for each type of hose will depend on the exact standard it&#;s made to, so always refer to the specific standard&#;s documentation or consult with a hydraulic hose expert if you&#;re unsure.

The use of the terms SN, SC, SH in your question likely refers to specific EN/DIN hose standards, where:

• &#;SN&#; usually stands for hoses according to EN853 (e.g., EN853 1SN, EN853 2SN)
• &#;SC&#; refers to compact hoses, like EN857 1SC, EN857 2SC
• &#;SH&#; is often used for EN 856 hoses (e.g., EN 856 4SH)
• &#;SP&#; is often used for hoses like EN 856 4SP. This type of hose is suitable for high-pressure hydraulic applications, typically with tougher requirements or higher performance needs compared to an SN or SC hydraulic hose.

R1AT and R2AT

AbbreviationFull NameDescriptionR1ATSAE 100 R1AT / DIN EN853 1SNThis is a high-temperature, one-wire braid hose often used in engine compartments and other high-temperature applications. It is resistant to oil and petroleum-based fluids.R2ATSAE 100 R2AT / DIN EN853 1SNThis is a high-temperature, two-wire braid hose typically used in mobile hydraulic applications, including farm equipment, construction equipment, and industrial hydraulic systems. It is also resistant to oil and petroleum-based fluids.

• &#;R1AT&#; typically refers to a type of hydraulic hose that meets the SAE 100R1AT specification. This is a high-temperature, one-wire braid hose that is often used in engine compartments and other high-temperature applications. It is resistant to oil and petroleum-based fluids.
• &#;R2AT&#; refers to a type of hydraulic hose that meets the SAE 100R2AT specification. This is a high-temperature, two-wire braid hose that is typically used in mobile hydraulic applications, including farm equipment, construction equipment, and industrial hydraulic systems. It is also resistant to oil and petroleum-based fluids.

Always refer to the specific standard&#;s documentation for a complete understanding of what a particular abbreviation means, as it may vary depending on the context.

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EN 857 2SC steel wire reinforced hydraulic hose is similar to EN 853 2SN steel wire reinforced hydraulic hose in structure. The difference is that it has smaller outside diameter, which is suitable for the equipment piping whose installation space is compact and narrow.

Operating temperature range:

From -40°C up to +100°C, with peak of +125°C.

Qualified fluids: Mineral oils, vegetable and rapeseed oils, glycol and polyglicol oils, synthetic ester based oils, oils in aqueous emulsion, water.

Tube: Oil resistant synthetic rubber.

Reinforcement: Two high tensile steel braids.

Cover: Black, oil and environment resistant synthetic rubber.

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