Standard
Standard
-
Technical committeeTypeAcronymISO 7790CommitteePublished year2013Description
ISO 7790:2013 specifies clamping dimensions of four-port modular stack valves and four-port directional control valves, sizes 02, 03, 05, 07, 08, and 10, on mounting surfaces. The dimensions and sizes conform to ISO 4401 so as to ensure interchangeability of these valves and to reduce the number of fixing devices to be used.
It applies to clamping dimensions of four-port modular stack valves and four-port directional control valves which represent current practice. They are generally applicable to industrial equipment.
Technology -
Technical committeeTypeAcronymISO 7789CommitteePublished year2007Description
ISO 7789:2007 specifies the dimensions and provides other data relating to cavities in which two-, three- and four-port, screw-in cartridge valves are mounted in order to ensure interchangeability.
ISO 7789:2007 is applicable to two-, three- and four-port screw-in cartridge valves generally used in industrial and mobile equipment.
Technology -
Technical committeeTypeAcronymISO 7745CommitteePublished year2010Description
ISO 7745:2010 specifies the operational characteristics for the various categories of fire-resistant fluids defined by ISO 6743-4. ISO 7745:2010 details the factors to be considered when selecting a fluid from these categories for a proposed application.
ISO 7745:2010 identifies difficulties which might arise from the use of such fluids and indicates how they may be minimized. Appropriate procedures are given for replacing one fluid with another from a different category. Health and safety aspects when handling and disposing of fire-resistant fluids are also covered.
ISO 7745:2010 does not apply to fire-resistant fluids used in the hydraulic systems of commercial or military aircraft. The appropriate aviation standards are also usually applied where aircraft hydraulic fluids are filled into ground-based systems.
Technology -
Technical committeeTypeAcronymISO 7425-2CommitteePublished year2021Description
This document specifies the dimensions and associated tolerances for a series of hydraulic cylinder rod seal housings to accommodate elastomer-energized, plastic-faced seals used in reciprocating applications.
This document does not stipulate details of seal design, since the manner of construction of seals varies with each manufacturer. The design and material of the seals, and any incorporated anti-extrusion components, are determined by conditions such as temperature and pressure.
This document only applies to the dimensional characteristics of products manufactured in accordance with this document. It does not apply to their functional characteristics.
Technology -
Technical committeeTypeAcronymISO 7425-1CommitteePublished year2021Description
This document specifies the dimensions and associated tolerances for a series of hydraulic cylinder piston seal housings to accommodate elastomer-energized, plastic-faced seals used in reciprocating applications.
This document does not stipulate details of seal design, since the manner of construction of seals varies with each manufacturer. The design and material of the seals, and any associated anti-extrusion components, are determined by conditions such as temperature and pressure.
This document only applies to the dimensional characteristics of products manufactured in accordance with this document. It does not apply to their functional characteristics.
Technology -
Technical committeeTypeAcronymISO 7368CommitteePublished year2016Description
ISO 7368:2016 specifies only geometrical data relating to cavities in which two-port hydraulic slip-in cartridge valves are mounted in order to ensure interchangeability.
NOTE For example, this document does not specify rated pressures.
It applies to cavities for two-port hydraulic slip-in cartridge valves which are generally applicable to industrial equipment.
Technology -
Technical committeeTypeAcronymISO 7257CommitteePublished year2016Description
ISO 7257:2016 specifies a flexure test procedure to determine and classify the fatigue strengths of reconnectable or permanent hydraulic tube joints.
The procedure is intended for conducting flexure tests of fittings and joints with high-strength hydraulic tubes of various alloys such as corrosion resistant steel, Nimonic?[1], titanium and aluminium alloy hydraulic tube for use on commercial and military aircraft.
A mean stress is applied by holding system pressure in the specimens and then flexing in a rotary bending test machine.
[1] Nimonic? is the trademark of a product supplied by Special Metals Corporation. This information is given for the convenience of users of this document and does not constitute an endorsement by ISO of the product named. Equivalent products can be used if they can be shown to lead to the same results.
Technology -
Technical committeeTypeAcronymISO 7241CommitteePublished year2014Description
ISO 7241:2014 specifies the interface dimensions and basic performance requirements for two series of hydraulic quick-action couplings. Both series are in widespread use and have similar technological advantages. Series A is used predominantly in Europe and is preferred worldwide for agricultural and forestry machinery, and ISO 7241:2014 also specifies additional requirements for Series A for use in agricultural machinery applications covered in ISO 5675. Series B is used predominantly in North America and in the chemical industry.
Technology -
Technical committeeTypeAcronymISO 6605CommitteePublished year2017Description
ISO 6605:2017 specifies uniform test methods for evaluating the performance of hoses and hose assemblies (hoses and attached hose fittings) used in hydraulic fluid power systems.
Specific tests and performance criteria for evaluating hoses and hose assemblies used in hydraulic applications are in accordance with the requirements of the respective product (hoses or hose fitting) specifications.
Technology -
Technical committeeTypeAcronymISO 6547CommitteePublished year1981Description
Establishes the dimensions and associated tolerances for a series of housings for piston seals. Specifies the dimensions for a range of seal housings of 25 to 500 mm. It applies to piston-heads that may either be assembled from a number of components or made in one piece. A figure shows an example of housing.
Technology