What are the standards for hydraulic oil? Natinal Stanadard, International Standard & OEM Standard

Hydraulic equipment has a wide variety of types, complex working conditions, and diverse usage environments, making the hydraulic oil product line relatively complex. It is usually divided into two types of products: universal and specialized. Universal hydraulic oil pursues its universality, and the products mainly meet international standards and OEM requirements to meet equipment performance;

Specialized hydraulic oil is designed for special working conditions, such as high wear resistance, high water separation, high rust prevention, emulsification, etc. Although the proportion is small, its absolute market value is also large.

Specialized hydraulic oil products are difficult to develop due to the pursuit of high standards for a certain performance, and high technical content.

Water is the most frequently encountered pollutant in hydraulic oil, and most of the components in the system are metal. If water is not removed promptly, it is easy to cause a series of problems such as accelerated lubricating oil decay, component corrosion, and wear.

To ensure the smooth operation of hydraulic systems, domestic specifications require indicators such as rust prevention, hydrolysis stability, and filtration. Oil products that meet the requirements can meet the requirements of the vast majority of equipment operating conditions.

Hydraulic oil standards are mainly divided into national and international standards and OEM standards.  So what are the standards for hydraulic oil?

Some National Standards and International Standards. 

GB11118.1-2011  National Standard: Hydraulic fluids of L-HL, L-HM, L-HV, L-HS and L-HG type
ISO 11158 Lubricants, industrial oils, and related products (class L) Family H (hydraulic systems) Specifications for categories HH, HL, HM, HV, and HG
DIN 51524  Pressure fluids - Hydraulic oils - Part 1: HL hydraulic oils, Minimum requirements
ASTM D6158《Standard Specification for Mineral Hydraulic Oils》

OEM Standards

Denison HF-0
Rexroth Bosch 90235
Cincinnati-Machine
JCMAS HK
Eaton E-FDGN-TB002-E

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