GB/T 20081.3-2021 Active National standards

GB/T 20081.3-2021 Pneumatic fluid power—Compressed air pressure regulators and filter-regulators—Part 3:Alternative test methods for measuring the flow-rate characteristics of pressure regulators

Publish Date: 2021-08-20 Implement Date: 2022-03-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 20081.3-2021

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Hydraulic and pneumatic devices

ICS Name: Control components

Publish Date: 2021-08-20

Implement Date: 2022-03-01

Pages: 45 pages

Scope

This document specifies an optional test method for testing the flow characteristics of pneumatic components.
This document is only applicable to the testing of the decreasing part of the hysteresis curve of forward flow and overflow flow characteristics that meet the following conditions:
—— Compared with the response to pressure changes in the charging and discharging test, the pressure change of the tested component is fast enough to be ignored;
—— There is no overshoot or oscillation in the pressure response.
This document specifies the requirements for test devices, test procedures, and test results.
This document provides examples of test results (see Appendix A), various data processing methods (see Appendix B), visualized data processing programs (see Appendix C), and diagrams for adjusting the overshoot and undershoot of pressure response and import pressure changes exceeding the allowable range (see Appendix D).
This document is applicable to the following components:
—— Pressure relief valves and filtered pressure relief valves that comply with ISO 6953-1;
—— Electrical-pneumatic pressure control valves that comply with ISO 10094;
—— Other components, such as overflow valves.
Note: If pressure regulation characteristics are required, ISO 6953-2 applies.