ISO 19973-5:2015 PDF

Pneumatic fluid power — Assessment of component reliability by testing — Part 5: Non-return valves, shuttle valves, dual pressure valves (AND function), one-way adjustable flow control valves, quick-exhaust valves

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Title (English):

ISO 19973-5:2015

Document status:: Active
Format:: Electronic (PDF)
Number of pages:: 18
Publication date:: September 1, 2015
Edition:: ISO IS 19973 edition 1 version 1
ICS:: 23.100.01

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Description (English):

ISO 19973-5:2015 provides test procedures for assessing the reliability of the following types of pneumatic valves: ? non-return (check) valves; ? pilot-operated non-return valves; ? shuttle valves; ? dual pressure valves (AND function); ? one-way adjustable flow control valves; ? quick-exhaust valves by testing and the methods of reporting the results of testing. General test conditions and the calculation method are provided in ISO 19973‑1. The methods specified in ISO 19973‑1 apply to the first failure, as obtained with the three-points moving average (3PMA) method, without repairs, but excluding outliers. The lifetime of these pneumatic valves is usually given as a number of cycles. Therefore, whenever the term "time" is used in this part of ISO 19973-5:2015, this variable is understood as a number of cycles. ISO 19973-5:2015 also specifies test equipment and threshold levels for tests to assess the reliability of these pneumatic valves.

Technical details

Technical committee: ISO/TC 131 - Fluid power systems
SKU: ISO 19973-5:2015

Abstract

Overview

ISO 19973-5:2015 - Pneumatic fluid power - Assessment of component reliability by testing - Part 5 specifies test procedures and reporting methods to assess the reliability of key pneumatic valve types. It covers non-return (check) valves, pilot-operated non-return valves, shuttle valves, dual pressure valves (AND function), one-way adjustable flow control valves, and quick-exhaust valves. The standard defines test equipment, cycling conditions, measurement methods and threshold levels; general procedures and lifetime-calculation methods are provided in ISO 19973‑1. Note: in this part, “time” is expressed as a number of cycles (lifetime = cycles).

Key topics and technical requirements

Scope of testing: Functional checks, leakage measurement, shifting-pressure measurement and recording of test data for each valve type.
Failure detection: First-failure determination uses the three-points moving average (3PMA) method as defined in ISO 19973‑1 (no repairs; outliers excluded).
Test equipment and circuits: Basic circuits, ports identification and volumes are specified; silencers must not restrict flow and connecting tubing should be short to meet timing.
Cycling conditions: Example requirement - for non-return and one-way flow control valves the outlet pressure in the test volume must drop below 10% and rise above 90% of supply pressure during each cycle. Adjustment screws on one-way adjustable flow controls are locked during tests. Specific cycling sequences are defined for pilot-operated, quick-exhaust, shuttle and dual-pressure valves.
Data handling: Timing of checks, scope of measurements, recording formats, failure criteria and threshold levels, data analysis and test-report content are prescribed.
Complementary rules: Units, symbols and graphical symbols conform to ISO 80000-1 and ISO 1219‑1; ports identified per ISO 11727.

Practical applications and users

Who uses it: Pneumatic component manufacturers, test laboratories, OEMs, machine builders, reliability engineers, R&D teams, quality assurance and maintenance planners.
Practical value:
- Provides reproducible test methods to quantify valve lifetime in cycles.
- Enables comparison of component reliability for procurement and design.
- Supports reliability modelling, FMEA, maintenance planning, spare-parts inventory and warranty analysis.
- Helps validate prototype designs and production-quality valves before field deployment.

Related standards

ISO 19973-1 (General procedures for component reliability testing)
ISO 1219-1 (Graphical symbols)
ISO 5598 (Vocabulary)
ISO 11727 (Port identification)
ISO 8778 (Standard reference atmosphere)
ISO 80000-1 (Quantities and units)
IEC 60050-191 (Dependability vocabulary)

Keywords: ISO 19973-5:2015, pneumatic fluid power, component reliability, non-return valve, shuttle valve, dual pressure valve, one-way adjustable flow control, quick-exhaust valve, test procedures, lifecycle cycles, 3PMA, test equipment, leakage measurement.

Related standards

Standards mentioned in the description

Abstract

Overview

Key topics and technical requirements

Scope of testing: Functional checks, leakage measurement, shifting-pressure measurement and recording of test data for each valve type.
Failure detection: First-failure determination uses the three-points moving average (3PMA) method as defined in ISO 19973‑1 (no repairs; outliers excluded).
Test equipment and circuits: Basic circuits, ports identification and volumes are specified; silencers must not restrict flow and connecting tubing should be short to meet timing.
Cycling conditions: Example requirement - for non-return and one-way flow control valves the outlet pressure in the test volume must drop below 10% and rise above 90% of supply pressure during each cycle. Adjustment screws on one-way adjustable flow controls are locked during tests. Specific cycling sequences are defined for pilot-operated, quick-exhaust, shuttle and dual-pressure valves.
Data handling: Timing of checks, scope of measurements, recording formats, failure criteria and threshold levels, data analysis and test-report content are prescribed.
Complementary rules: Units, symbols and graphical symbols conform to ISO 80000-1 and ISO 1219‑1; ports identified per ISO 11727.

Practical applications and users

Who uses it: Pneumatic component manufacturers, test laboratories, OEMs, machine builders, reliability engineers, R&D teams, quality assurance and maintenance planners.
Practical value:
- Provides reproducible test methods to quantify valve lifetime in cycles.
- Enables comparison of component reliability for procurement and design.
- Supports reliability modelling, FMEA, maintenance planning, spare-parts inventory and warranty analysis.
- Helps validate prototype designs and production-quality valves before field deployment.

Related standards

ISO 19973-1 (General procedures for component reliability testing)
ISO 1219-1 (Graphical symbols)
ISO 5598 (Vocabulary)
ISO 11727 (Port identification)
ISO 8778 (Standard reference atmosphere)
ISO 80000-1 (Quantities and units)
IEC 60050-191 (Dependability vocabulary)

ISO 19973-5:2015 PDF

Technical details

Abstract

Overview

Key topics and technical requirements

Practical applications and users

Related standards

Related standards

Abstract

Overview

Key topics and technical requirements

Practical applications and users

Related standards

Related standards

Pneumatic fluid power — Assessment of component reliability by testing — Part 1: General procedures

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