Overview
ISO 22109:2026 – Industrial valves - Gearboxes for valves is an international standard published by ISO, specifying the essential requirements for gearboxes used to operate industrial valves. This includes gearboxes designed for manual, automated, and modulating duties, as well as those equipped with manual override functionalities. Covering both part-turn and multi-turn gearboxes, the standard provides guidelines on classification, design, conformity assessment, marking, documentation, and packaging. Notably, it excludes gear systems that are integral to valve design and subsea gearboxes. ISO 22109 supports manufacturers, suppliers, and purchasers in ensuring consistent, reliable, and safe operation of industrial valves equipped with gearboxes across diverse industrial applications.
Key Topics
- Classification: Gearboxes are classified by the kind of operation (manual, automated, manual override) and type of rotation (part-turn or multi-turn).
- Design Requirements: The standard sets out criteria for endurance, structural integrity, self-locking/braking, mechanical advantage, and environmental adaptability (temperature, humidity, altitude, and corrosion resistance).
- Performance Testing: Comprehensive type and production tests (endurance, overload, mechanical advantage) must be conducted to validate gearbox conformity.
- Attachment Interfaces: Output and input interfaces for gearboxes are standardized, referencing ISO 5210 for multi-turn and ISO 5211 for part-turn valve attachments.
- Marking and Documentation: Clear requirements for mandatory and optional markings ensure product traceability and compliance. Manufacturers must provide essential technical documentation, including installation, operation, and maintenance instructions.
- Optional Equipment: The standard allows for various optional features by agreement, such as position transmitters, fireproofing, manual locks, overpressure relief valves, and enhanced lubrication systems.
Applications
ISO 22109:2026 is highly relevant for stakeholders involved in the design, selection, procurement, and maintenance of industrial valves and their gearboxes in sectors such as:
- Oil and Gas: Ensures safe and reliable operation of valves in pipelines, refineries, and petrochemical plants.
- Water Treatment: Provides consistent performance and protection against corrosion, vibration, and extreme environmental conditions.
- Chemical Processing: Supports the use of gearboxes with corrosion protection categories appropriate for harsh chemical environments.
- Power Generation: Enables specification of gearboxes for high-endurance applications with reliable manual or automated operation, including modulating duties.
- General Manufacturing: Provides a standardized approach for integrating manual or automated valve operation across machinery and process equipment.
By adhering to ISO 22109:2026, buyers and suppliers align on technical requirements, test procedures, marking, and documentation, ensuring compatibility, safety, and performance reliability in demanding industrial valve applications.
Related Standards
For comprehensive compliance and integration, the following related international standards are often used in conjunction with ISO 22109:
- ISO 5210 – Industrial valves - Multi-turn valve actuator attachments
- ISO 5211 – Industrial valves - Part-turn actuator attachments
- IEC 60529 – Degrees of protection provided by enclosures (IP Code)
- ISO 22153 – Electric actuators for industrial valves - General requirements
- EN 12570 – Industrial valves - Method for sizing the operating elements
- EN 15714 (Parts 1 & 2) – Industrial valves - Actuators - Terminology and requirements
By referencing these standards, industry professionals can assure comprehensive integration of gearboxes with valve assemblies, address environmental and safety considerations, and maintain conformity across international projects.
