ISO 5597:2018 establishes the preferred range of nominal dimensions and associated tolerances for a series of hydraulic cylinder rod and piston seal housings for reciprocating applications in the following range of dimensions:
- for cylinders of 16 mm to 500 mm;
- for rods of 6 mm to 450 mm.
An additional range of seal housings is detailed in this document to meet the reduced envelope requirements of the 160 bar (16 MPa) compact series of ISO 6020‑2; these smaller section seals require stricter piston rod and cylinder bore tolerances. The range of dimensions is as follows:
- cylinders of 25 mm to 200 mm;
- rods of 12 mm to 140 mm.
ISO 5597:2018 does not give details of seal design, since the manner of construction of seals varies with each manufacturer. The design and material of the seal and any incorporated anti-extrusion components are determined by conditions such as temperature and pressure.
ISO 5597:2018 only applies to the dimensional criteria of products manufactured in conformity with this document; it does not apply to their functional characteristics.
 1 bar = 100 kPa = 105 Pa = 0,1 MPa; 1 Pa = 1 N/m2.
Status: PublishedPublication date: 2018-05
Edition: 3Number of pages: 16
Technical Committee: ISO/TC 131/SC 7 Sealing devices
- ICS :
- 23.100.20 Cylinders
This standard contributes to the following Sustainable Development Goal:
Buy this standard
|std 1 92||PDF + ePub|
|std 2 92||Paper|
ISO 5597:2018Stage: 60.60
Got a question?
Check out our FAQs
Monday to Friday - 09:00-12:00, 14:00-17:00 (UTC+1)
Keep up to date with ISO
Sign up to our newsletter for the latest news, views and product information.