SAQA All qualifications and part qualifications registered on the National Qualifications Framework are public property. Thus the only payment that can be made for them is for service and reproduction. It is illegal to sell this material for profit. If the material is reproduced or quoted, the South African Qualifications Authority (SAQA) should be acknowledged as the source.
SOUTH AFRICAN QUALIFICATIONS AUTHORITY 
REGISTERED UNIT STANDARD: 

Replace a rotary valve on a bag house 
SAQA US ID UNIT STANDARD TITLE
253364  Replace a rotary valve on a bag house 
ORIGINATOR
SGB Generic Manufacturing, Engineering, Technology 
PRIMARY OR DELEGATED QUALITY ASSURANCE FUNCTIONARY
-  
FIELD SUBFIELD
Field 06 - Manufacturing, Engineering and Technology Fabrication and Extraction 
ABET BAND UNIT STANDARD TYPE PRE-2009 NQF LEVEL NQF LEVEL CREDITS
Undefined  Regular  Level 2  NQF Level 02 
REGISTRATION STATUS REGISTRATION START DATE REGISTRATION END DATE SAQA DECISION NUMBER
Reregistered  2018-07-01  2023-06-30  SAQA 06120/18 
LAST DATE FOR ENROLMENT LAST DATE FOR ACHIEVEMENT
2024-06-30   2027-06-30  

In all of the tables in this document, both the pre-2009 NQF Level and the NQF Level is shown. In the text (purpose statements, qualification rules, etc), any references to NQF Levels are to the pre-2009 levels unless specifically stated otherwise.  

This unit standard does not replace any other unit standard and is not replaced by any other unit standard. 

PURPOSE OF THE UNIT STANDARD 
This unit standard will be useful for persons that will be involved in the maintenance and repair of mining equipment and specifically to replace a rotary valve on a bag house. People credited with this unit standard are able to:
  • Explain the factors critical to replacing a rotary valve on a bag house.
  • Prepare to replace a rotary valve on a bag house.
  • Replace a rotary valve on a bag house.
  • Test the rotary valve and prepare for operation and/or production.

    The skills, knowledge and understanding demonstrated within this unit standard are essential for social and economic transformation and contribute to upliftment and economic growth.

    This unit standard is intended to promote general skills, knowledge and understanding of how to replace a rotary valve on a bag house in the mining and minerals sector in order to ensure knowledgeable and informed workers. 

  • LEARNING ASSUMED TO BE IN PLACE AND RECOGNITION OF PRIOR LEARNING 
    The credit calculation is based on the assumption that learners are already competent in terms of the following outcomes or areas of learning when starting to learn towards this unit standard:
  • Use relevant tools.
  • Use relevant lifting equipment.
  • Use oxy-acetylene equipment.
  • Replace chains and sprockets. 

  • UNIT STANDARD RANGE 
    Specific range statements are provided in the body of the unit standard where they apply to particular specific outcomes or assessment criteria. 

    Specific Outcomes and Assessment Criteria: 

    SPECIFIC OUTCOME 1 
    Explain the factors critical to replacing a rotary valve on a bag house. 

    ASSESSMENT CRITERIA
     

    ASSESSMENT CRITERION 1 
    The explanation of the principle of operation and function of a rotary valve on a bag house is in accordance with specified requirements. 

    ASSESSMENT CRITERION 2 
    The explanation of the importance of replacing a rotary valve on a bag house to achieve healthy, safe production requirements is in accordance with specified requirements. 
    ASSESSMENT CRITERION RANGE 
    Explanation must include:
  • Injury to persons.
  • Damage to equipment.
  • Loss of production time through breakdowns.
  • Increased costs.
     

  • ASSESSMENT CRITERION 3 
    The explanation lists the possible significant workplace hazards that may be encountered while replacing a rotary valve on a bag house in a particular context. The explanation also describes the risks associated with and the factors contributing to each workplace hazard. 

    ASSESSMENT CRITERION 4 
    The explanation lists the possible significant work related hazards that may be encountered while replacing a rotary valve on a bag house in a particular context. The explanation also describes the risks associated with and the factors contributing to each work-related hazard. 

    SPECIFIC OUTCOME 2 
    Prepare to replace a rotary valve on a bag house. 

    ASSESSMENT CRITERIA
     

    ASSESSMENT CRITERION 1 
    Permission is obtained in accordance with specified requirements. 

    ASSESSMENT CRITERION 2 
    The required personal protective equipment is selected, examined and used in a way that is consistent with its purpose, design and specified requirements. Personal protective equipment is used to ensure the safety of persons and equipment. 

    ASSESSMENT CRITERION 3 
    Tools, material and equipment are selected, examined and transported in accordance with specified requirements. 

    ASSESSMENT CRITERION 4 
    The workplace is examined in accordance with specified requirements. Workplace hazards are dealt with in accordance with specified requirements. 

    ASSESSMENT CRITERION 5 
    The rotary valve to be replaced is identified in accordance with specified requirements. 

    ASSESSMENT CRITERION 6 
    The rotary valve, to be worked on, is locked out and made safe, in accordance with specified requirements and current accepted best practice. 

    ASSESSMENT CRITERION 7 
    The consequences for occupational health, safety and production of not preparing to replace a rotary valve on a bag house in line with specified requirements, and current legislation are explained. 
    ASSESSMENT CRITERION RANGE 
    Consequences must include:
  • Permission.
  • Personal protective equipment.
  • Tools, material and equipment.
  • Workplace examination.
  • Workplace hazards.
  • Identifying the rotary valve.
  • Locking out and making safe.
     

  • SPECIFIC OUTCOME 3 
    Replace a rotary valve on a bag house. 

    ASSESSMENT CRITERIA
     

    ASSESSMENT CRITERION 1 
    The required personal protective equipment is used in a way that is consistent with its purpose, design and specified requirements. Personal protective equipment is used to ensure the safety of persons and equipment. 

    ASSESSMENT CRITERION 2 
    Work related hazards are dealt with in accordance with specified requirements. 

    ASSESSMENT CRITERION 3 
    The rotary valve to be replaced on a bag house is removed in line with sequence and manufacturers specification. 

    ASSESSMENT CRITERION 4 
    The replacement rotary valve is installed in line with specified requirements and current accepted best practice. 

    ASSESSMENT CRITERION 5 
    Interpersonal interaction is positive, consistent with specified requirements and promotes effective teamwork. 

    ASSESSMENT CRITERION 6 
    The tools and equipment are used in accordance with manufacturers' design and without injury to self and others. 

    ASSESSMENT CRITERION 7 
    The consequences for occupational health, safety and production of not replacing the rotary valve on a bag house in line with specified requirements, and current legislation are explained. 
    ASSESSMENT CRITERION RANGE 
    Consequences must include those for:
  • Personal protective equipment.
  • Work related hazards.
  • Removing the rotary valve.
  • Installing the rotary valve.
  • Interpersonal interaction.
  • Use of tools and equipment.
     

  • SPECIFIC OUTCOME 4 
    Test the rotary valve and prepare for operation and/or production. 

    ASSESSMENT CRITERIA
     

    ASSESSMENT CRITERION 1 
    The rotary valve is prepared for testing purposes in accordance with specified requirements. 

    ASSESSMENT CRITERION 2 
    The rotary valve is tested to determine if it is functioning in accordance with specified requirements. 

    ASSESSMENT CRITERION 3 
    Tools, material and equipment selected are dealt with in accordance with specified requirements. 

    ASSESSMENT CRITERION 4 
    The workplace is cleaned and free from hazards in accordance with specified requirements and housekeeping practices. 

    ASSESSMENT CRITERION 5 
    The report on work performed complies with specified requirements for format, content, accuracy and distribution. The report is delivered within the agreed time. 

    ASSESSMENT CRITERION 6 
    The consequences for occupational health, safety and production of not testing the replaced rotary valve in line with specified requirements, and current legislation are explained. 
    ASSESSMENT CRITERION RANGE 
    Consequences must include:
  • Preparation for testing.
  • Testing.
  • Tools, material and equipment.
  • Housekeeping.
  • Reporting.
     


  • UNIT STANDARD ACCREDITATION AND MODERATION OPTIONS 
  • Anyone assessing a learner or moderating the assessment of a leaner against this unit standard must be registered as an assessor with the relevant Education, Training, Quality, Assurance (ETQA) Body, or with ETQA that has a Memorandum of Understanding with relevant ETQA.
  • Any institution offering learning that will enable achievement of this unit standard must be accredited as a provider with relevant Education, Training, Quality, Assurance (ETQA) Body, or with ETQA that has a Memorandum of Understanding with relevant ETQA.
  • Assessment and moderation of assessment will be overseen by the relevant Education, Training, Quality, Assurance (ETQA) Body, or with ETQA that has a Memorandum of Understanding with relevant ETQA, according to ETQA's policies and guidelines for assessment and moderation.
  • Moderation must include both internal and external moderation of assessments, unless ETQA policies specify otherwise.
  • Anyone wishing to be assessed against this unit standard may apply to be assessed by any assessment agency, assessor or provider institution that is accredited by the relevant ETQA. 

  • UNIT STANDARD ESSENTIAL EMBEDDED KNOWLEDGE 
    The following embedded knowledge is addressed in an integrated way in the unit standard:
  • Occupational Health and safety knowledge.
  • Legal and site-specific requirements. 

  • UNIT STANDARD DEVELOPMENTAL OUTCOME 
    N/A 

    UNIT STANDARD LINKAGES 
    N/A 


    Critical Cross-field Outcomes (CCFO): 

    UNIT STANDARD CCFO IDENTIFYING 
    Identify and solve problems and make decisions using critical and creative thinking.
  • Note: The ability of the candidate to identify sub-standard and hazardous conditions, assess and take appropriate action. 

  • UNIT STANDARD CCFO WORKING 
    Work effectively with others as members of a team, group, organisation or community.
  • Note: The ability and willingness of the candidate to accept and interpret work instructions correctly. 

  • UNIT STANDARD CCFO ORGANISING 
    Organise and manage themselves and their activities responsibly and effectively.
  • Note: The ability of the candidate to indicate what methods, tools and personal protective equipment is required and communicate to fellow workers his/her intentions and assistance required. 

  • UNIT STANDARD CCFO COLLECTING 
    Collect, analyse, organise and critically evaluate information.
  • Note: The ability of the candidate to reconcile the information from visual and physical examinations and constantly evaluate the changing situation. 

  • UNIT STANDARD CCFO COMMUNICATING 
    Communicate effectively, using visual, mathematical and/or language skills in the modes of oral and/or written presentations.
  • Note: The appropriate communication with the relevant personnel with regard to the reporting of hazards and sub-standard conditions will indicate his/her proficiency in effective communication. 

  • UNIT STANDARD CCFO SCIENCE 
    Use science and technology effectively and critically showing responsibility towards the environment and health of others.
  • Note: The use of science and technology is not relevant for this unit standard. 

  • UNIT STANDARD CCFO DEMONSTRATING 
    Demonstrate an understanding of the world as a set of related systems by recognising that problem-solving contexts do not exist in isolation.
  • Note: The ability of the candidate to identify and refer anomalous behaviour to a specialist confirms understanding that a specific observation, inference, action or decision can have a devastating effect. 

  • UNIT STANDARD ASSESSOR CRITERIA 
    N/A 

    REREGISTRATION HISTORY 
    As per the SAQA Board decision/s at that time, this unit standard was Reregistered in 2012; 2015. 

    UNIT STANDARD NOTES 
    Terminology:

    Specified Requirements:

    Specified requirements include legal and site-specific requirements and are contained in one or more of the following documents:

    Legal:
  • Relevant Acts: e.g. Mine Health & Safety Act and Regulations, 1996 (Act 29/1996), and Minerals Act and Regulations, 1991 (Act 50/1991).
  • Mandatory Codes of Practice.
  • SANS and other relevant Standards.
  • Chief Inspector of Mines' Directives/Instructions.
  • Guidelines issued by the Chief Inspector of Mines.

    Site-Specific:
  • Hazard Identification and Risk Assessments (HIRA).
  • Occupational Health and Safety Risk Management Programme.
  • Managerial Instructions.
  • Mine Standard Procedures.
  • List of Recorded OH&S Risks.
  • Working Guides.
  • Equipment and Materials Specifications.

    Notes to Assessors:

    Assessors should keep the following principles in mind when designing and conducting assessments against this unit standard:
  • Focus the assessment activities on gathering evidence in terms of the main outcome expressed in the title to ensure assessment is integrated rather than fragmented. Remember we want to declare the person competent in terms of the title. Where assessment at title level is unmanageable and then focuses assessment around each specific outcome, or groups of specific outcomes.
  • Make sure evidence is gathered across the entire range, wherever it applies. Assessment activities should be as close to the real performance as possible, and where simulations or role-plays are used, there should be supporting evidence to show the candidate is able to perform in the real situation.
  • Do not focus the assessment activities on each assessment criterion. Rather make sure the assessment activities focus on outcomes and are sufficient to enable evidence to be gathered around all the assessment criteria.
  • The assessment criteria provide the specifications against which assessment judgements should be made. In most cases, knowledge can be inferred from the quality of the performances, but in other cases, knowledge and understanding will have to be tested through questioning techniques. Where this is required, there will be assessment criteria to specify the standard required.
  • The task of the assessor is to gather sufficient evidence, of the prescribed type and quality, as specified in this unit standard, that the candidate can achieve the outcomes again and again and again. This means assessors will have to judge how many repeat performances are required before they believe the performance is reproducible.
  • All assessments should be conducted in line with the following well documented principles of assessment: appropriateness, fairness, manageability, integration into work or learning, validity, direct, authentic, sufficient, systematic, open and consistent.

    Unit Standard Justification:

    Level:

    Attribute; Level; Justification:
  • Skills; Level 2; Variety of simple skills i.e. adjusting and lubricating.
  • Procedures; Level 2; Although the procedure is known and familiar (as Level 1) it is not as repetitive.
  • Context; Level 2; Contexts are repeatedly applicable and known.
  • Knowledge; Level 3; Relevant theoretical knowledge required (Operation, function, assembly and lubrication).
  • Information processing; Level 2; Information available, some processing required..
  • Problem Solving; Level 2; Given solutions to known problems.
  • Orientation of activities; Level 3; Decisions are taken but require supervision.
  • Application of responsibility; Level 3; Output is quality checked.
  • Orientation of scope of responsibility; Level 3; Responsible for completion (quantity) and function (quality).

    Average Level = 2.44.
    Actual Level Assigned = 2.

    Credits:

    Total hours required by the learner to achieve the required outcome:

    Activity; Hours:
  • Classroom Teaching; 6 hours.
  • On-The-Job Training; 12 hours.
  • Mentoring required; 0 hours
  • Other (Specify); 0 hours.

    Total = 18 hours.

    Credits Achieved: 18/10 = 1.8.
    Credits Assigned = 2. 

  • QUALIFICATIONS UTILISING THIS UNIT STANDARD: 
      ID QUALIFICATION TITLE PRE-2009 NQF LEVEL NQF LEVEL STATUS END DATE PRIMARY OR DELEGATED QA FUNCTIONARY
    Elective  59689   National Certificate: Mechanical Engineering  Level 2  NQF Level 02  Reregistered  2021-06-30  As per Learning Programmes recorded against this Qual 


    PROVIDERS CURRENTLY ACCREDITED TO OFFER THIS UNIT STANDARD: 
    This information shows the current accreditations (i.e. those not past their accreditation end dates), and is the most complete record available to SAQA as of today. Some Primary or Delegated Quality Assurance Functionaries have a lag in their recording systems for provider accreditation, in turn leading to a lag in notifying SAQA of all the providers that they have accredited to offer qualifications and unit standards, as well as any extensions to accreditation end dates. The relevant Primary or Delegated Quality Assurance Functionary should be notified if a record appears to be missing from here.
     
    1. ArcelorMittal South Africa Ltd (VANDERBIJLPARK) (TP) 
    2. Barloworld South Africa (Pty) Ltd T/A Barloworld-Equipment (ISANDO) (T 
    3. Belique Training Centre cc (ALBERTON) (TP) 
    4. Coastal Kzn F.E.T. College - Swinton Road Campus 
    5. Coastal Kzn F.E.T. College - Umbumbulu Campus 
    6. College of Production Technology 
    7. Customised Training Specialists Trust T/A CTS (PINETOWN) (TP) 
    8. Eastcape Midlands Public FET College - Uitenhage (High Street)Campus 
    9. Eastcape Training Centre 
    10. Enstra Learning and Development Centre (Pty) Ltd (SPRINGS) (TP) 
    11. False Bay Public FET College - Westlake Campus 
    12. Gijima AST Holdings (Pty) Ltd T/A Fundi Training Centre (BENONI) (TP) 
    13. Hytec Group of Companies T/A Hytec (KEMPTON PARK) (TP) 
    14. ITHEMBA INSTITUTE OF TECHNOLOGY 
    15. Izizwe Training Centre (Pty) Ltd T/A Simtech Training (NORTHDENE) (TP) 
    16. Lesedi Skills Academy (TP) 
    17. Majuba FET College - Newcastle Technology Centre 
    18. MSC Artisan Academy (Pty) Ltd T/A Master Artisan Academy SA (EAST LOND 
    19. MT & HR Training Consultants (Pty) Ltd (DURBAN) (TP) 
    20. Mthetana Trading & Construction T/A Multi Skill Training Centre (DURBA 
    21. Northlink College - Wingfield Campus 
    22. Orbit FET College - Rustenburg Campus 
    23. S & S Training & Construction (SPRINGS) (TP) 
    24. Scaw Metals Group (Pty) Ltd T/A Scaw Metals (DINWIDDIE) (TP) 
    25. SEDIBENG TRAINING CENTRE 
    26. Shine The Way 281 cc T/A Industrial Training Centre (NEW GERMANY) (TP) 
    27. Shukela Training Centre 
    28. Toyota Academy Toyota SA Motors (Pty) Ltd (ISIPINGO) (TP) 
    29. Umfolozi FET College 
    30. Umfolozi FET College - Mandeni Campus 
    31. Umgungundlovu FET College - Plessislaer Campus 
    32. Wavelength T.T.I 
    33. World Focus 382 cc T/A Richards Bay Technical Training & Assessment Centre (ZCBF) (RICHARDS BAY) (TP) 



    All qualifications and part qualifications registered on the National Qualifications Framework are public property. Thus the only payment that can be made for them is for service and reproduction. It is illegal to sell this material for profit. If the material is reproduced or quoted, the South African Qualifications Authority (SAQA) should be acknowledged as the source.