ISO 6953-3:2012 PDF

Scope: This part of ISO 6953 specifies alternative test methods for testing pneumatic fluid power components that use compressible fluids, i.e. gases. This part of ISO 6953 is applicable only to the decreasing flow rate part of the hysteresis curve of forward flow and relief flow characteristics. This method can be applied when: — the pressure regulation dynamics of a component under test is rapid enough to be negligible, compared to the response of pressure changes during charge and discharge tests; — the pressure response does not show any overshoot or any oscillating behaviour. This part of ISO 6953 specifies requirements for the test installation, the test procedure and the presentation of results. Examples of test results are given, as well as various data processing methods, and visualization of data processing procedures. Illustrations of overshoot and undershoot on regulated pressure response and large variations on inlet pressure are also given. This part of ISO 6953 applies to the following components: — compressed air pressure regulators and filter-regulators according to ISO 6953-1; — electro-pneumatic pressure control valves according to ISO 10094; — other components such as relief valves. NOTE If pressure regulation characteristics are needed, ISO 6953-2 is applicable.

ISO 6953-3:2012 Referenced Document

ISO 10094-2 Pneumatic fluid power — Electro-pneumatic pressure control valves — Part 2: Test methods to determine main characteristics to include in the supplier's literature*， 2021-11-22 Update
ISO 5598 Fluid power systems and components — Vocabulary*， 2020-01-06 Update
ISO 6358-1 Pneumatic fluid power*， 2024-03-01 Update
ISO 6358-2 Pneumatic fluid power*， 2024-03-01 Update
ISO 6953-1 Pneumatic fluid power — Compressed air pressure regulators and filter-regulators — Part 1: Main characteristics to include in supplier's literature and product-marking requirements*， 2024-01-08 Update
ISO 6953-2 Pneumatic fluid power — Compressed air pressure regulators and filter-regulators — Part 2: Test methods to determine the main characteristics to include in supplier’s literature*， 2024-01-08 Update

2012 ISO 6953-3:2012 Pneumatic fluid power - Compressed air pressure regulators and filter-regulators - Part 3: Alternative test methods for measuring the flow-rate characteristics of pressure regulators