ISO 7425-2:2021 PDF

Scope: 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.

ISO 7425-2:2021 Referenced Document

ISO 3320 Fluid power systems and components.Cylinder bores and piston rod diameters and area ratios.Metric series
ISO 4287:1997 Geometrical Product Specification (GPS) - Surface texture: Profile method - Terms, definitions and surface texture parameters
ISO 5598 Fluid power systems and components — Vocabulary

2021 ISO 7425-2:2021 Hydraulic fluid power cylinders - Dimensions and tolerances of housings for elastomer-energized, plastic-faced seals - Part 2: Rod seal housings
1989 ISO 7425-2:1989 Hydraulic fluid power; housings for elastomer-energized, plastic-faced seals; dimensions and tolerances; part 2: rod seal housings