ISO 6162-1-2012 PDF

Full title and description

ISO 6162-1:2012 — Hydraulic fluid power — Flange connections with split or one-piece flange clamps and metric or inch screws — Part 1: Flange connectors, ports and mounting surfaces for use at pressures of 3,5 MPa (35 bar) to 35 MPa (350 bar), DN 13 to DN 127. This part gives general and dimensional specifications for flange heads, split and one-piece flange clamps, ports and mounting surfaces and specifies sealing dimensions and seal grooves for four‑screw flange clamp type tube connectors and hose fittings; it accommodates metric (type 1) and inch (type 2) screw fasteners.

Abstract

ISO 6162-1:2012 defines geometry, clearances and sealing groove dimensions for flange connections (FCS, FCSM, FC, FCM) intended for hydraulic systems operating between 3.5 MPa (35 bar) and 35 MPa (350 bar), covering nominal diameters DN 13 to DN 127. It is intended to avoid threaded connectors where flanged face connections are preferred and notes that pressure surges above rated values will reduce retention capability and must be considered in system design.

General information

• Status: Published
• Publication date: December 2012 (Edition 2, published 14 December 2012)
• Publisher: International Organization for Standardization (ISO)
• ICS / categories: 23.100.40 (Piping and couplings)
• Edition / version: Edition 2 (2012)
• Number of pages: 21.

Scope

This part of ISO 6162 specifies general and dimensional requirements for flanged heads, split and one‑piece flange clamps, ports and mounting faces for four‑screw flange clamp type tube and hose connectors and fittings used at working pressures from 3,5 MPa (35 bar) up to 35 MPa (350 bar) and for nominal sizes DN 13 up to DN 127. It includes dimensions for mating faces, bolt patterns, seal sizes and grooves, and gives provisions to accept either metric screw fasteners (type 1) or inch fasteners (type 2) where applicable. The document is intended for industrial and commercial hydraulic systems where non‑threaded, flanged connections are required; designers must account for transient pressure surges that can exceed nominal ratings.

Key topics and requirements

• Dimensional specifications for flanged heads (FCS, FCSM, FC, FCM) and corresponding ports and mounting surfaces.
• Standardized bolt patterns and screw fastener options: metric (type 1) and inch (type 2) accommodations.
• Seal types, dimensions and groove geometries for reliable face sealing at specified pressures.
• Design limits: rated working pressures from 3,5 MPa to 35 MPa and guidance to consider pressure surges.
• Nominal diameter coverage DN 13 to DN 127 and interchangeability guidance for connectors and hose fittings.

Typical use and users

Engineers and designers of hydraulic systems for mobile and industrial equipment, component manufacturers (flanges, hoses, fittings), maintenance teams, procurement/specification writers and testing laboratories use ISO 6162-1 to ensure dimensional interchangeability, reliable sealing and correct mounting of flange‑type hydraulic connections in equipment such as presses, hydraulic power units, construction machinery and industrial production systems.

Related standards

Closely related documents include ISO 6162-2 (the higher‑pressure companion part covering flange connectors and ports for ~42 MPa applications) and other hydraulic port and stud‑end standards such as the ISO 6149 series (metric ports with O‑ring sealing). ISO 6162-1 is part of the ISO/TC 131/SC 4 family of fluid power connector standards and should be used in conjunction with complementary hose and fitting standards (for example ISO 12151 series) when specifying complete connection systems.

Keywords

hydraulic fluid power, flange connections, split flange clamp, one‑piece flange clamp, FCS, FCM, ports, mounting surfaces, seal grooves, DN 13–DN 127, 35 bar–350 bar, metric screws, inch screws, ISO 6162

FAQ

Q: What is this standard?

A: ISO 6162-1:2012 is an international standard that specifies general and dimensional requirements for flanged hydraulic connections (four‑screw flange clamp types) and their mating ports and mounting surfaces for use up to 35 MPa (350 bar).

Q: What does it cover?

A: It covers flange head geometries, bolt patterns, sealing groove and seal dimensions, port and mounting surface details, and provisions to accept either metric or inch screw fasteners for sizes DN 13 to DN 127 and working pressures from 3,5 MPa to 35 MPa.

Q: Who typically uses it?

A: Hydraulic system designers, component manufacturers (flanges, fittings, hoses), maintenance and test engineers, and procurement/specification teams who need standardized, interchangeable flanged hydraulic connections.

Q: Is it current or superseded?

A: ISO 6162-1:2012 is the published Edition 2 (2012). Users should check national and ISO catalogues for any subsequent revisions or draft revisions under development before finalizing long‑term designs. (Refer to authoritative ISO publications for the current life‑cycle status.)

Q: Is it part of a series?

A: Yes — it is Part 1 of the ISO 6162 series; Part 2 addresses higher pressure/flange requirements (see ISO 6162-2) and related connector standards (for ports, stud ends and hose fittings) exist within ISO/TC 131/SC 4.

Q: What are the key keywords?

A: flange connection, split flange, one‑piece flange, FCS, FCM, hydraulic fittings, sealing groove, port dimensions, DN 13–127, 35 MPa, metric screw, inch screw, ISO 6162-1.