ISO 10372-1992 PDF

Full title and description

ISO 10372:1992 — Hydraulic fluid power — Four- and five-port servovalves — Mounting surfaces. Specifies the dimensions and mounting-surface arrangements for four- and five-port servovalves to ensure mechanical interchangeability, primarily for electrohydraulic flow-control servovalves and optionally for pressure-control servovalves.

Abstract

Defines the geometry, port arrangement and dimensional requirements of mounting surfaces used with four- and five-port servovalves so that valves from different manufacturers can be mounted interchangeably. Notes that for three-port use either service port A or B may be omitted.

General information

• Status: Published (confirmed in ISO systematic review, most recent confirmation 22 March 2023).
• Publication date: 17 December 1992 (Edition 1, 1992-12).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 23.100.50 — Control components (hydraulic fluid power components).
• Edition / version: Edition 1 (1992).
• Number of pages: 7 pages (official ISO document length).

Key bibliographic and lifecycle details are provided by ISO and confirmed listings of the standard.

Scope

Specifies the required dimensions and layout of mounting surfaces for four- and five-port servovalves to ensure interchangeability of electrohydraulic flow-control servovalves and, where applicable, pressure-control servovalves. The standard covers mounting-face dimensions, port positions and basic interface features necessary for secure and repeatable mechanical mounting between valve and actuator or manifold.

Key topics and requirements

• Defined mounting-face geometry (hole patterns, reference dimensions and datum points).
• Service port (A, B), pressure port (P) and tank/return port (T) location and identification for four- and five-port arrangements.
• Allowance for three-port applications by omission of one service port where applicable.
• Dimensional tolerances and recommended surface-finish considerations to ensure proper sealing and mechanical fit.
• Compatibility guidance to support interchangeability between different manufacturers' servovalves.

These requirements ensure mechanical interchangeability and reliable mounting of servovalves in hydraulic systems.

Typical use and users

Used by hydraulic systems designers, valve manufacturers, manifold and actuator manufacturers, maintenance engineers and test laboratories. Typical applications include industrial hydraulics, mobile hydraulic systems, simulation rigs and any equipment requiring interchangeable servovalve mounting for flow or pressure control.

Related standards

ISO 10372 forms part of the ISO portfolio for hydraulic fluid power and control components. Related standards address electrically modulated hydraulic control valves, port and identification conventions, test methods for control valves and other directional valve measurement standards (examples from ISO technical committees on hydraulic and pneumatic control components).

Keywords

servovalve, four-port, five-port, mounting surface, hydraulic fluid power, interchangeability, electrohydraulic, pressure-control, valve mounting, ISO 10372

FAQ

Q: What is this standard?

A: ISO 10372:1992 is an international standard that specifies the mounting-surface dimensions and port arrangements for four- and five-port hydraulic servovalves to ensure mechanical interchangeability between products.

Q: What does it cover?

A: It covers mounting-face geometry, port positions (P, T, A, B), dimensional tolerances and provisions for three-port use by omission of a service port; it is focused on mechanical/interface requirements rather than hydraulic performance testing.

Q: Who typically uses it?

A: Valve and manifold manufacturers, hydraulic system designers, maintenance teams and engineers involved in specifying or replacing servovalves in industrial or mobile hydraulic systems.

Q: Is it current or superseded?

A: The 1992 edition remains published and was last reviewed and confirmed in ISO's systematic review process (confirmation recorded in 2023); it is not listed as withdrawn or superseded. Users should check the ISO catalogue for any future revisions.

Q: Is it part of a series?

A: It sits within ISO/TC 131 work on hydraulic fluid power control components and is related to other ISO standards covering electrically modulated valves, test methods and port identification conventions. It is not a multipart standard itself but complements several other hydraulic-control standards.

Q: What are the key keywords?

A: Servovalve, mounting surface, four-port, five-port, hydraulic fluid power, interchangeability, electrohydraulic, ISO 10372.