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ISA TR96.05.01
Partial Stroke Testing of Automated Block Valves
Organization:
ISA - International Society of Automation
Year: 2008
Abstract: ANSI/ISA-TR96.05.01 is informative and does not contain any mandatory requirements.
ANSI/ISA-TR96.05.01 is limited to automated valves normally operating in either a full open or full closed position.
The boundary of the automated valve includes the following:
a) Limit switches and other monitoring devices
b) Air regulation and filtration system
c) Actuated valves whose fail position is specified as spring-return fail closed, spring-return fail open, or double acting
d) Valve body specified to meet the functional requirements for its application
ANSI/ISA-TR96.05.01 does not address automated valves used for regulatory control applications.
Guidance is provided on the following:
a) Identifying when partial stroke testing may be useful
b) Various criteria to consider when selecting the partial stroke method, e.g., automated versus manual test execution, spurious trip potential, and on-line maintainability
c) The advantages and disadvantages of three basic types of partial stroke test methods: mechanical limiting, positioners, and solenoid operated valves
d) The use of diagnostic coverage factors in the performance calculations for an automated block valve being partial stroke tested periodically
ANSI/ISA-TR96.05.01 is limited to automated valves normally operating in either a full open or full closed position.
The boundary of the automated valve includes the following:
a) Limit switches and other monitoring devices
b) Air regulation and filtration system
c) Actuated valves whose fail position is specified as spring-return fail closed, spring-return fail open, or double acting
d) Valve body specified to meet the functional requirements for its application
ANSI/ISA-TR96.05.01 does not address automated valves used for regulatory control applications.
Guidance is provided on the following:
a) Identifying when partial stroke testing may be useful
b) Various criteria to consider when selecting the partial stroke method, e.g., automated versus manual test execution, spurious trip potential, and on-line maintainability
c) The advantages and disadvantages of three basic types of partial stroke test methods: mechanical limiting, positioners, and solenoid operated valves
d) The use of diagnostic coverage factors in the performance calculations for an automated block valve being partial stroke tested periodically
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| contributor author | ISA - International Society of Automation | |
| date accessioned | 2017-09-04T18:21:41Z | |
| date available | 2017-09-04T18:21:41Z | |
| date copyright | 05/04/2008 | |
| date issued | 2008 | |
| identifier other | HZIFGCAAAAAAAAAA.pdf | |
| identifier uri | http://yse.yabesh.ir/std;jsessionid=A33FFBB4A04818B251172099FA6814F7/handle/yse/204105 | |
| description abstract | ANSI/ISA-TR96.05.01 is informative and does not contain any mandatory requirements. ANSI/ISA-TR96.05.01 is limited to automated valves normally operating in either a full open or full closed position. The boundary of the automated valve includes the following: a) Limit switches and other monitoring devices b) Air regulation and filtration system c) Actuated valves whose fail position is specified as spring-return fail closed, spring-return fail open, or double acting d) Valve body specified to meet the functional requirements for its application ANSI/ISA-TR96.05.01 does not address automated valves used for regulatory control applications. Guidance is provided on the following: a) Identifying when partial stroke testing may be useful b) Various criteria to consider when selecting the partial stroke method, e.g., automated versus manual test execution, spurious trip potential, and on-line maintainability c) The advantages and disadvantages of three basic types of partial stroke test methods: mechanical limiting, positioners, and solenoid operated valves d) The use of diagnostic coverage factors in the performance calculations for an automated block valve being partial stroke tested periodically | |
| language | English | |
| title | ISA TR96.05.01 | num |
| title | Partial Stroke Testing of Automated Block Valves | en |
| type | standard | |
| page | 28 | |
| status | Active | |
| tree | ISA - International Society of Automation:;2008 | |
| contenttype | fulltext |