Technical documents have recently been published and are now available from the National Fluid Power Association (NFPA).
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
Scope (abbreviated): This part of ISO 6953 specifies alternative test methods for determining the flow-rate characteristics of pneumatic fluid power components that can be applied when:
- the pressure regulation dynamics of a component under test are 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 behavior
- 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.
The standard does not cover pressure regulation characteristics, which are dealt with in ISO 6953-2.
Benefits: ISO 6953-3 benefits users and manufacturers by facilitating comparisons of compressed air pressure regulators and filter-regulators by standardizing test methods and the presentation of test data related to flow-rate characteristics.
National Fluid Power Association
www.nfpa.com
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