Overview
ISO 10041-2:2010 - Pneumatic fluid power - Electro-pneumatic continuous flow control valves - Part 2: Test methods to determine main characteristics to include in the supplier's literature - specifies standardized test procedures and presentation formats for the performance parameters that must appear in supplier literature. The objective is to enable consistent comparison of electro‑pneumatic continuous flow control valves and to support correct valve selection and application in pneumatic systems.
Key topics and requirements
- Scope and purpose
- Defines tests (static and dynamic) and reporting methods for electro‑pneumatic continuous flow control valves intended to modulate mass flow in response to an electrical control signal.
- Tests are intended for characterization and literature data - not mandatory production testing for every unit.
- Test conditions
- Default gas: compressed air (other gases to be reported).
- Temperature: ambient, fluid and valve temperatures maintained at 23 °C ± 10 °C.
- Pressure control: specified pressures maintained within ±2%; recommended inlet pressure 630 kPa (6.3 bar) when possible.
- Electrical supply: tests under nominal electrical conditions.
- Test types and clauses
- Clause 7: Control signal - flow rate characteristics (test circuits and procedures).
- Clause 8: Global flow rate characteristics.
- Clause 9: Pressure gain characteristics.
- Clause 10: Leakage at null operating flow rate.
- Clause 11: Dynamic characteristics (frequency response and step response).
- Clause 12: Presentation of test results for supplier’s literature.
- Symbols, units and normative references
Applications and users
- Who uses this standard
- Valve manufacturers preparing supplier’s literature and performance datasheets.
- Independent test laboratories performing characterization of electro‑pneumatic valves.
- OEMs, systems integrators and design engineers specifying valves for position or force control in pneumatic actuators.
- Procurement and quality teams comparing valve performance across suppliers.
- Practical value
- Ensures apples‑to‑apples comparison of control valves by standardizing test methods and result presentation.
- Supports selection for precise position‑ or force‑tracking applications by providing reliable flow, leakage, pressure‑gain and dynamic data.
- Aids system design by supplying validated characteristics needed for pneumatic control loop modelling.
Related standards
- ISO 10041-1: Main characteristics to include in supplier’s literature
- ISO 6358-1: Flow‑rate determination - general rules and steady‑state test methods
- ISO 10094-2: Tests for electro‑pneumatic continuous pressure control valves
- ISO 5598 and ISO 1219-1: Terminology and graphic symbols
Keywords: ISO 10041-2:2010, electro-pneumatic continuous flow control valves, pneumatic fluid power, test methods, flow rate characteristics, pressure gain, leakage, dynamic characteristics, supplier's literature.
Open preview (PDF)Pneumatic fluid power — Electro-pneumatic continuous flow control valves — Part 2: Test methods to determine main characteristics to include in the supplier's literature