Assembling non-ferrous marine pipework
Overview
This standard identifies the competences you need to assemble non-ferrous marine pipework, in accordance with approved procedures. The pipework systems being assembled will include high and low pressure air, hydraulics, sea water, hot and cold fresh water, refrigeration gas, fuel gas and other non-ferrous pipework systems. In producing the assemblies, you will be expected to select and use a range of equipment, hand tools and techniques, appropriate to the operations being performed.
The assembly activities will include producing soft soldered joints and compression joints. The pipe assemblies produced will use a range of fittings, including straight connectors, elbows, tee pieces, reduction pieces, tank connectors, tap connectors, valves and other fittings, as appropriate to the application.
Your responsibilities will require you to comply with organisational policy and procedures for the pipework assembly activities undertaken and to report any problems with the equipment, materials or assembly activities that you cannot personally resolve, or are outside your permitted authority, to the relevant people. You will be expected to work with a minimum of supervision, taking personal responsibility for your own actions and for the quality and accuracy of the work that you produce. **
Your underpinning knowledge will provide a good understanding of your work and will provide an informed approach to applying marine non-ferrous pipework assembly procedures. You will have an understanding of the marine pipework systems being installed and their application and will know about the various methods of assembling the pipework using soldering/brazing, compression joints, pipe components and other materials, in adequate depth to provide a sound basis for carrying out the activities, correcting faults and ensuring that the work output is produced to the required specification.
You will understand the safety precautions required when working on the pipework assembly activities and with the associated tools and equipment. You will be required to demonstrate safe working practices throughout and will understand the responsibility you owe to yourself and others in the workplace, both ashore and on board vessels.
Performance criteria
You must be able to:
- work safely at all times, complying with health and safety and other relevant regulations, directives and guidelines
- follow the relevant instructions, assembly drawings and any other specifications
- ensure that the specified components are available and that they are in a usable condition
- use the appropriate methods and techniques to assemble the components in their correct positions
use specified connectors and securing devices to secure components
produce pipework assemblies to meet required specification
check the completed assembly to ensure that all operations have been completed and the finished assembly meets the required specification
- deal promptly and effectively with problems within your control and report those that cannot be solved
Knowledge and Understanding
You need to know and understand:
- the specific safety precautions to be taken when assembling non-ferrous marine pipework and with the tools and equipment that are used, both on land and onboard vessels/craft/marine structure (including general workshop and site safety, accident procedure; statutory regulations, risk assessment procedures and COSHH regulations)
- the personal protective equipment (PPE) to be used when assembling non-ferrous marine pipework
- the hazards associated with the non-ferrous marine pipework assembly activities (such as handling long lengths of pipe, using gas torches and brazing equipment, handling sealing agents and fluxes) and how they can be minimised
- how to use and extract information from engineering drawings and related specifications (to include symbols and conventions to appropriate BS or ISO standards) in relation to work undertaken
- how to interpret first and third angle drawings, imperial and metric systems of measurement, work reference points and system of tolerancing
- how to carry out currency/issue checks of the specifications you are working with
- the preparation of pipework and fittings for the assembly operation (such as checking for damage, removing foreign objects, dirt and swarf from bore of pipe, removing burrs)
- the range of pipe fittings that can be used and how to identify them (to include straight connectors, elbows, tee pieces, reduction pieces, screwed fittings, valves, blanking pieces/cap ends)
- the different types of fittings available (such as soldered fittings (solder ring types and capillary), compression fittings and push fit fittings)
- how to determine the overall length of the pipework required, taking into account allowances for pipe fittings
- how to identify the correct orientation of fittings with regard to flow and the consequences of incorrectly orientating the fitting
- the methods used to prepare pipe ends and fittings for soldering or brazing and why it is necessary to ensure that these preparations are carried out
- the tools and equipment used when assembling non-ferrous pipework
- the methods used to solder the joints and how to recognise when the fitting is correctly soldered
- the precautions to be taken when using gas torches to form the joint and the effect of overheating the joint
- the principles of sealing and use of compression fittings and the effects of over-tightening the fittings
- the use of push-fit connectors and their advantages and disadvantages
- the methods used to handle and support pipework during assembly
- the type of fittings that are used for securing pipework assemblies to ship structures
- the standards to be attained and company quality procedures
- the procedure for the safe disposal of waste materials
- the recording documentation to be completed for the marine pipe bending and forming activities undertaken and where appropriate, the importance of marking and identifying specific pieces of work in relation to the documentation
- the extent of your own responsibility and whom you should report to if you have problems that you cannot resolve
Scope/range
Scope Performance
Carry out all of the following during the pipework assembly activities:
- use the correct pipe assembly drawings, specifications or job instructions
- ensure that appropriate COSHH regulations are adhered to
- check that all tools and equipment are in a safe and usable condition
- ensure that components and pipes are free from foreign objects, dirt or other contamination
- leave the work area in a safe and tidy condition on completion of the activities
Assemble pipes and pipe components, to form three of the following marine pipework systems:
- high/low pressure air
- hydraulics
- sea water
- lubricating oil
- hot water
- cold/chilled water
- refrigeration gas
- fuel gas
- exhaust gas
Cut pipes to length and assemble them, using all of the following methods:
- compression fittings
- snap-on/push fittings
- soldered fittings
Produce pipework assemblies which contain six of the following types of fittings:
- straight couplings
- valves
- elbows
- blanking caps
- tee pieces
- reduction pieces
- drain/bleeding devices
- screwed fittings (tank, tap, pump, gauges)
- flanges
- couplings
- unions
- pipe clips/supports
Produce assembled pipework which contains two of the following features:
- angular bends
- offsets
- bridge sets
Assemble pipework using six of the following:
- soft solder
- gaskets/seals
- sealing tapes
- jointing compounds
- gas torches
- flux
- pipe cutters
- hand tools
Assemble pipework, to include carrying out all of the following:
- connecting pipe to pipe
- connecting pipe to ship's equipment
- alignment and levelling of pipework
- securing and fitting pipework supports to ship structures
- torque loading of connections
- attaching identification markers of pipe contents (such as colour coding, labels)
Produce pipework assemblies which comply with one of the following standards:
- BS or ISO standards and procedures
- customer (contractual) standards and requirements
- company standards and procedures
- specific system requirements
- recognised compliance agency/body's standards
- other accepted international standards
Scope Knowledge
Values
Behaviours
Behaviours:
You will be able to apply the appropriate behaviours required in the workplace to meet the job profile and overall company objectives, such as:
- strong work ethic
- positive attitude
- team player
- dependability
- responsibility
- honesty
- integrity
- motivation
- commitment