NZQA registered unit standard
20612 version 2
Page 1 of 3
Title
Demonstrate knowledge of pneumatics and pneumatic power
systems
Level
2
Credits
5
Purpose
People credited with this unit standard are able to: demonstrate
knowledge of the principles of pneumatics; demonstrate
knowledge of pneumatic power systems and applications; and
describe hazards associated with pneumatic power systems.
Classification
Mechanical Engineering > Fluid Power - Pneumatics
Available grade
Achieved
Explanatory notes
Definition
Pneumatics – industry abbreviated term for fluid mechanics or fluid power that uses a
compressible medium such as air or nitrogen for the conveyance of force.
Outcomes and evidence requirements
Outcome 1
Demonstrate knowledge of the principles of pneumatics.
Evidence requirements
1.1
Terminology is described in the context of a basic pneumatic system.
Range
terminology – pressure, flow, orifice flow, force, torque, holding
pressure, linear movement, load, lift, stroke.
1.2
Atmospheric, gauge, absolute pressures, and vacuum are distinguished and
their use in pneumatic systems explained.
1.3
Pascal’s law is described in terms of how it forms the basis of pneumatics.
1.4
Basic formulas are used to calculate the performance of pneumatic systems.
Range
Competenz
SSB Code 101571
includes – pressure and force, with transposition of variables;
may include but is not limited to – tube diameter and flow rate,
volume and pressure (Boyle’s Law), cylinder volume, piston area,
piston speed (both directions), kilowatts required to drive
compressor.
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
1.5
20612 version 2
Page 2 of 3
International standard units are used in calculations.
Outcome 2
Demonstrate knowledge of pneumatic power systems and applications.
Evidence requirements
2.1
The operation of a pneumatic power systems is described with the aid of a
simple system diagram sketched by the candidate.
Range
2.2
purpose of components, types of gases, contamination, precision
control, operational response rate, difference between air
production and air consuming systems.
Types of equipment powered by pneumatic power systems are identified.
Range
2.3
a minimum of two types of equipment.
Types of industries where pneumatic power systems are in common use are
identified.
Range
a minimum of four different types of industries.
Outcome 3
Describe hazards associated with pneumatic power systems.
Evidence requirements
3.1
The characteristics of pressure in pneumatic power systems are described with
reference to potential hazards.
Range
3.2
actuator stopped or stalled, stored energy.
Common hazards are described with reference to their potential for personal
injury.
common hazards – sudden shoot out, presence of carbon
monoxide in system, exposure to compressed air.
Range
Planned review date
31 December 2015
Status information and last date for assessment for superseded versions
Process
Version Date
Last Date for Assessment
Registration
1
25 May 2004
31 December 2014
Review
2
18 March 2011
N/A
Competenz
SSB Code 101571
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
20612 version 2
Page 3 of 3
Accreditation and Moderation Action Plan (AMAP) reference
0013
This AMAP can be accessed at http://www.nzqa.govt.nz/framework/search/index.do.
Please note
Providers must be granted consent to assess against standards (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 granted consent to assess against standards by
NZQA before they can register credits from assessment against unit standards.
Providers and Industry Training Organisations, which have been granted consent and
which are assessing against unit standards must engage with the moderation system that
applies to those standards.
Consent 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 Competenz qualifications@competenz.org.nz if you wish to suggest
changes to the content of this unit standard.
Competenz
SSB Code 101571
 New Zealand Qualifications Authority 2016