9589 version 4
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Repair and replace valves in a petrochemical workplace
Level
4
Credits
4
Purpose
This unit standard is for people employed in the petrochemical industry.
People credited with this unit standard are, in a petrochemical workplace,
able to: repair valves and their components; refit and connect valves; and
check refitted valves.
Subfield
Petrochemical Industry
Domain
Petrochemical Process and Product Management
Status
Registered
Status date
20 February 2009
Date version published
20 February 2009
Planned review date
31 December 2013
Entry information
Open.
Accreditation
Evaluation of documentation and visit by NZQA and
industry.
Standard setting body (SSB)
NZ Motor Industry Training Organisation (Incorporated)
(MITO)
Accreditation and Moderation Action Plan (AMAP) reference
0114
This AMAP can be accessed at http://www.nzqa.govt.nz/framework/search/index.do.
Special notes
1
Performance of the elements of this unit standard must comply with relevant site
requirements, system specifications, manufacturer’s recommendations, assigned
company engineer’s instructions, and the following legislation:
Health and Safety in Employment Act 1992;
Resource Management Act 1991.
2
This unit standard is intended for, but is not limited to, workplace assessment. While
all performance criteria must be met it is noted that all range statements within this
unit standard are indicative and dependent on enterprise and site specific equipment,
procedures, and practices. Any queries can be directed to the NZ Motor Industry
Training Organisation (Incorporated) (MITO).
 New Zealand Qualifications Authority 2016
9589 version 4
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3
Definition
Site requirements mean the site specific documented methods for performing work
activities and include health, safety, environmental, and quality management
requirements. They may refer to manuals, codes of practice, or policy statements.
Elements and performance criteria
Element 1
Repair valves and their components in a petrochemical workplace.
Performance criteria
1.1
The intended repair procedure is agreed on with the assigned company
engineer.
1.2
Valves and their components are prepared for repair in accordance with
assigned company engineer’s requirements.
1.3
Procedures to ensure compatibility of repair materials with valves and their
components are identified.
1.4
Measurements against system specification are made to the required accuracy
in accordance with assigned company engineer’s requirements.
1.5
Manufacturer’s recommendations are followed for using tools and equipment to
repair valves and their components.
1.6
Defective valves and components are repaired to manufacturer’s specification in
accordance with site requirements.
1.7
Materials are used economically in accordance with site requirements.
1.8
Precautions are taken to ensure that valves, their components, tools, and
equipment are not damaged during repair.
1.9
The immediate work area is maintained in a tidy, clean, and hazard-free state at
all times.
1.10
Results of valve repair are reported in accordance with site requirements.
Element 2
Refit and connect valves in a petrochemical workplace.
Performance criteria
2.1
Valves are refitted and connected in accordance with authorisation
requirements.
Range
permits, isolations, test certificates.
 New Zealand Qualifications Authority 2016
9589 version 4
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2.2
Ancillary services suitable to refit valves are agreed on and coordinated with the
assigned company engineer.
2.3
Where ancillary services are needed, procedures for acquiring them are
established with the assigned company engineer, and actioned if required.
2.4
Manufacturer's recommendations are followed for the selection and use of tools
for refitting of valves.
2.5
Valves aligned, fixed, and connected to pipe work meet system specifications.
Range
specifications for – torque setting, gasket type, stud bolts.
2.6
The refitting of valves minimises downtime and disruption to the production
schedule.
2.7
Communication with control room personnel is maintained in accordance with
site requirements.
Element 3
Check refitted valves in a petrochemical workplace.
Performance criteria
3.1
The refit complies with authorisations to work and assigned company engineer’s
instructions.
Range
permits, isolations, test certificates, work instructions.
3.2
Precommissioning checks and tests are carried out whilst minimising downtime
and disruption to production schedules.
3.3
Installation tests check that materials, components, and their overall
configuration meet system specifications and are undamaged, safe, and secure.
3.4
All necessary tests of installation are completed in accordance with site
requirements.
Range
leak test, operational check.
3.5
All variations from system and manufacturer’s specifications are identified and a
course of action is agreed upon with the issuer of the permit to work in
accordance with site requirements.
3.6
Results of tests are recorded in accordance with site requirements.
3.7
Valves are made permanently identifiable.
 New Zealand Qualifications Authority 2016
9589 version 4
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3.8
Communication is maintained with appropriate personnel in accordance with
site requirements.
Range
process, services, maintenance, engineering.
Please note
Providers must be accredited by NZQA, or an inter-institutional body with delegated
authority for quality assurance, before they can report credits from assessment against
unit standards or deliver courses of study leading to that assessment.
Industry Training Organisations must be accredited by NZQA before they can register
credits from assessment against unit standards.
Accredited providers and Industry Training Organisations assessing against unit standards
must engage with the moderation system that applies to those standards.
Accreditation requirements and an outline of the moderation system that applies to this
standard are outlined in the Accreditation and Moderation Action Plan (AMAP). The
AMAP also includes useful information about special requirements for organisations
wishing to develop education and training programmes, such as minimum qualifications for
tutors and assessors, and special resource requirements.
Comments on this unit standard
Please contact the NZ Motor Industry Training Organisation (Incorporated) (MITO)
info@mito.org.nz if you wish to suggest changes to the content of this unit standard.
 New Zealand Qualifications Authority 2016