Major Work Activity G - Installs, tests and services specialized systems

Table of Contents

• G-19 Installs, tests and services process piping systems
  • G-19.01 Plans layout and sizes piping and components for process piping systems
  • G-19.02 Installs piping for process piping systems
  • G-19.03 Installs components for process piping systems
  • G-19.04 Tests process piping systems
  • G-19.05 Services process piping systems
• G-20 Installs, tests and services potable water fire protection systems - Not Common Core
  • G-20.01 Plans layout and sizes piping for potable water fire protection systems - Not Common Core
  • G-20.02 Installs potable water fire protection systems - Not Common Core
  • G-20.03 Tests potable water fire protection systems - Not Common Core
  • G-20.04 Services potable water fire protection systems - Not Common Core
• G-21 Installs, tests and services other specialized systems
  • G-21.01 Plans layout and sizes piping, components and equipment for other specialized systems
  • G-21.02 Installs piping and components for other specialized systems
  • G-21.03 Installs equipment for other specialized systems
  • G-21.04 Tests other specialized systems
  • G-21.05 Services other specialized systems

Task G-19 Installs, tests and services process piping systems

Task Descriptor

Process piping allows for a wide variety of applications. These piping systems may convey materials or fluids for applications such as manufacturing or treatment processes. These systems are installed in locations ranging from small businesses to large factories. For the purpose of this standard, service includes troubleshooting, diagnosing, maintenance and repairs.

Range of Variables

• specifications include: engineered drawings, manufacturers’ requirements, system requirements, job specifications, shop drawings, standards
• components include: flexible connectors, vibration isolators, expansion joints

Range of Variables

• process piping systems include:food processing (food grade, non-food grade), reverse-osmosis, high purity water, water treatment plant, waste water treatment plant, non-potable water (reclaim), manufacturing plant, laboratories
• components include: flexible connectors, vibration isolators, expansion joints
• specifications include: engineered drawings, manufacturers’ requirements, system requirements, job specifications, shop drawings, standards
• hazards include: chemicals, machinery, equipment, heights, electrocution, confined spaces, environmental, health

Range of Variables

• specifications include: engineered drawings, manufacturers’ requirements, system requirements, job specifications, shop drawings, standards
• components include: flexible connectors, vibration isolators, expansion joints, valves, cross-connection controls

Range of Variables

• process piping systems include:food processing (food grade, non-food grade), reverse-osmosis, high purity water, water treatment plant, waste water treatment plant, non-potable water (reclaim), manufacturing plant, laboratories
• components include: flexible connectors, vibration isolators, expansion joints, valves, cross-connection controls
• specifications include: engineered drawings, manufacturers’ requirements, system requirements, job specifications, shop drawings, standards
• hazards include: chemicals, machinery, equipment, heights, electrocution, confined spaces, environmental, health
• procedures to protect include: installing guards, installing anchor points, installing expansion joints, installing vibration dampering, installing specialty coatings

Range of Variables

• components include: tanks, pumps, specialty valves, valve boxes, compensate, pressure gauges, backflow preventers
• specifications include: engineered drawings, manufacturers’ requirements, system requirements, job specifications, shop drawings, standards
• materials include: housekeeping pads, spring isolators, flexible connections

Range of Variables

• process piping systems include:food processing (food grade, non-food grade), reverse-osmosis, high purity water, water treatment plant, waste water treatment plant, non-potable water (reclaim), manufacturing plant, laboratories
• components include: tanks, pumps, specialty valves, valve boxes, compensate, pressure gauges, backflow preventers
• specifications include: engineered drawings, manufacturers’ requirements, system requirements, job specifications, shop drawings, standards
• hazards include: chemicals, machinery, equipment, heights, electrocution, confined spaces, environmental, health

Range of Variables

• testing equipment includes: inflatable test balls, test plugs, compressors, blank flanges, mandrels, x-ray equipment, cameras, high-pressure cylinders
• faults include: cracks, corrosion,inadequate flow, vibration
• process piping systems include:food processing (food grade, non-food grade), reverse-osmosis, high purity water, water treatment plant, waste water treatment plant, non-potable water (reclaim), manufacturing plant, laboratories
• specifications include: engineered drawings, manufacturers’ requirements, system requirements, job specifications, shop drawings, standards
• isolation includes: LOTO, valves in closed position, caps, plugs, blanks
• tests include: hydrostatic, smoke, bending test, dye test, nitrogen test, air test

Range of Variables

• process piping systems include:food processing (food grade, non-food grade), reverse-osmosis, high purity water, water treatment plant, waste water treatment plant, non-potable water (reclaim), manufacturing plant, laboratories
• specifications include: engineered drawings, manufacturers’ requirements, system requirements, job specifications, shop drawings, standards
• faults include: cracks, corrosion,inadequate flow, vibration
• testing equipment includes: inflatable test balls, test plugs, compressors, blank flanges, mandrels, x-ray equipment, cameras, high-pressure cylinders
• hazards include: chemicals, machinery, equipment, heights, electrocution, confined spaces, environmental, health, sudden release of energy

Range of Variables

• components include: tanks, pumps, specialty valves, valve boxes, zone valves, pressure gauges, backflow preventers
• servicing required includes: wear, noise, leaks, corrosion, failure, maintenance schedule
• specifications include: engineered drawings, manufacturers’ requirements, system requirements, job specifications, shop drawings, standards
• media includes: glycol, pulp, chemicals, food and beverage

Range of Variables

• process piping systems include:food processing (food grade, non-food grade), reverse-osmosis, high purity water, water treatment plant, waste water treatment plant, non-potable water (reclaim), manufacturing plant, laboratories
• components include: tanks, pumps, specialty valves, valve boxes, zone valves, pressure gauges, backflow preventers
• specifications include: engineered drawings, manufacturers’ requirements, system requirements, job specifications, shop drawings, standards
• hazards include: chemicals, machinery, equipment, heights, electrocution, confined spaces, environmental, health
• servicing required includes: wear, noise, leaks, corrosion, failure, maintenance schedule

Task G-20 Installs, tests and services potable water fire protection systems - Not Common Core

Task Descriptor

Fire protection systems help save lives and ensure minimal fire damage to structures. Jurisdictional regulations determine the scope of the work that plumbers can perform in installing fire protection systems. For the purpose of this standard, service includes troubleshooting, diagnosing, maintenance and repairs.

Range of Variables

• components include: supervisory valves, sprinkler heads, flow switches, cross connection devices
• specifications include: engineered drawings, manufacturers’ requirements, system requirements, job specifications, shop drawings

Range of Variables

• components include: supervisory valves, sprinkler heads, flow switches, cross connection devices
• specifications include: engineered drawings, manufacturers’ requirements, system requirements, job specifications, shop drawings
• hazards include: heights, confined spaces, health, environmental

Range of Variables

• components include: supervisory valves, sprinkler heads, flow switches, cross connection devices
• codes include: plumbing, building, NFPA, CSA, ASSE

Range of Variables

• components include: supervisory valves, sprinkler heads, flow switches, cross connection devices
• specifications include: engineered drawings, manufacturers’ requirements, system requirements, job specifications, shop drawings
• hazards include: heights, confined spaces, health, environmental

Range of Variables

• testing equipment includes: compressor, hydrostatic pump, gauges
• faults include: inadequate flow, leaks, malfunctioning alarm
• specifications include: engineered drawings, manufacturers’ requirements, system requirements, job specifications, shop drawings
• tests include: flow, pressure, capacity, acceptance

Range of Variables

• components include: supervisory valves, sprinkler heads, flow switches, cross connection devices
• specifications include: engineered drawings, manufacturers’ requirements, system requirements, job specifications, shop drawings
• testing equipment includes: compressor, hydrostatic pump, gauges
• hazards include: heights, confined spaces, health, environmental, sudden release of energy
• procedures to test include: pneumatic, hydrostatic

Range of Variables

• components include: supervisory valves, sprinkler heads, flow switches, cross connection devices
• factors for replacement or repair include: leaks, damaged sprinkler heads
• specifications include: engineered drawings, manufacturers’ requirements, system requirements, job specifications, shop drawings

Range of Variables

• components include: supervisory valves, sprinkler heads, flow switches, cross connection devices
• specifications include: engineered drawings, manufacturers’ requirements, system requirements, job specifications, shop drawings
• hazards include: heights, confined spaces, health, environmental, sudden release of energy

Task G-21 Installs, tests and services other specialized systems

Task Descriptor

There are a number of specialized systems that, depending on the provincial jurisdictional regulations, may be worked on in the plumbing trade.

Natural gas, liquefied petroleum gas (LPG) and petroleum products are specialized piping installations. Plumbers install the piping from point of supply to the appliance isolation valve.

Plumbers install specialized piping and related equipment to provide medical gases in institutions such as hospitals, dental offices and clinics.

Residential irrigation systems provide water to lawns, gardens and flowerbeds. Commercial applications may include high volume installations for large areas such as farms, municipal parks and other public green spaces.

Ground source loops are essential components of a ground source heat pump system (geothermal). De‑superheaters are components of the heat pump, used to provide heat supplementation to the domestic hot water supply.

Radon mitigation to systems are installed to prevent the entry of harmful radon gas into buildings.

Solar thermal systems are used to transfer heat for potable water and space heating supplementation as well as pool heating. Industrial installations also apply and may include low and high temperature applications.

Drain pipe heat recovery systems reclaim otherwise lost heat content from drains such as shower, sink and lavatory drains.

Compressed air systems provide filtered and dry compressed air for a variety of purposes.

Non-potable water systems would include green initiative items like grey water reuse and rainwater harvesting applications for irrigation and firefighting purposes. Plumbers would install collection and distribution piping and equipment for these systems. For the purpose of this standard, service includes troubleshooting, diagnosing, maintenance and repair.

Additional certification may be required in some jurisdictions to allow plumbers to install, test and service these systems.

Range of Variables

• codes include: plumbing codes, building codes, CSA, American Society of Mechanical Engineers (ASME), ASSE
• specifications include: engineered drawings, manufacturers’ requirements, system requirements, job specifications, shop drawings

Range of Variables

• specialized systems include: compressed air, natural gas, propane, inert gas, medical gas, utility, process, radon mitigation, medical vacuum, residential irrigation, ground source loops, de-superheaters, solar thermal, drain pipe heat recovery, non-potable water (e.g., grey water reuse, rainwater harvesting)
• specifications include: engineered drawings, manufacturers’ requirements, system requirements, job specifications, shop drawings
• hazards include: chemicals, machinery, equipment, heights, electrocution, confined spaces, environmental, health, explosions, leaks, flammability of gases and fuels

Range of Variables

• specifications include: engineered drawings, manufacturers’ requirements, system requirements, job specifications and shop drawings

Range of Variables

• specialized systems include: compressed air, natural gas, propane, inert gas, medical gas, utility, process, radon mitigation, medical vacuum, residential irrigation, ground source loops, de-superheaters, solar thermal, drain pipe heat recovery, non-potable water (e.g., grey water reuse, rainwater harvesting)
• specifications include: engineered drawings, manufacturers’ requirements, system requirements, job specifications and shop drawings
• hazards include: chemicals, machinery, equipment, heights, electrocution, confined spaces, environmental, explosions, leaks, flammability of gases and fuels

Range of Variables

• specifications include: engineered drawings, manufacturers’ requirements, system requirements, job specifications, shop drawings, standards

Range of Variables

• specialized systems include: compressed air, natural gas, propane, inert gas, medical gas, utility, process, radon mitigation, medical vacuum, residential irrigation, ground source loops, de-superheaters, solar thermal, drain pipe heat recovery, non-potable water (e.g., grey water reuse, rainwater harvesting)
• specifications include: engineered drawings, manufacturers’ requirements, system requirements, job specifications, shop drawings, standards
• hazards include: chemicals, machinery, equipment, heights, electrocution, confined spaces, environmental, explosions, leaks, flammability of gases and fuels

Range of Variables

• testing equipment includes: manometers, flue gas analyzer, compressors, hydrostatic pumps, high pressure nitrogen cylinders, O2 analyzers
• faults include: cracks, corrosion,inadequate flow, leaks
• specialized systems include: compressed air, natural gas, propane, inert gas, medical gas, utility, process, radon mitigation, medical vacuum, residential irrigation, ground source loops, de-superheaters, solar thermal, drain pipe heat recovery, non-potable water (e.g., grey water reuse, rainwater harvesting)
• isolation includes: LOTO, valves in closed position, caps, plugs, blanks
• sensitive components and equipment include: regulators, gauges, pressure switches, flow switches
• tests include: hydrostatic, smoke, dye, nitrogen, air, cross connection, particulate, leak
• specifications include: engineered drawings, manufacturers’ requirements, system requirements, job specifications, shop drawings, standards

Range of Variables

• specialized systems include: compressed air, natural gas, propane, inert gas, medical gas, utility, process, radon mitigation, medical vacuum, residential irrigation, ground source loops, de-superheaters, solar thermal, drain pipe heat recovery, non-potable water (e.g., grey water reuse, rainwater harvesting)
• faults include: cracks, corrosion,inadequate flow, leaks
• testing equipment includes: manometers, flue gas analyzer, compressors, hydrostatic pumps, high pressure nitrogen cylinders, O2 analyzers
• hazards include: chemicals, machinery, equipment, heights, electrocution, confined spaces, environmental, explosions, leaks, flammability of gases and fuels, sudden release of energy

Range of Variables

• specialized systems include: compressed air, natural gas, propane, inert gas, medical gas, utility, process, radon mitigation, medical vacuum, residential irrigation, ground source loops, de-superheaters, solar thermal, drain pipe heat recovery, non-potable water (e.g., grey water reuse, rainwater harvesting)
• conditions requiring serviceinclude: wear, noise, leaks, corrosion, failure
• specifications include: engineered drawings, manufacturers’ requirements, system requirements, job specifications, shop drawings
• media includes: glycol, medical gas, fuel gas, heating oil, inert gas

Range of Variables

• specialized systems include: compressed air, natural gas, propane, inert gas, medical gas, utility, process, radon mitigation, medical vacuum, residential irrigation, ground source loops, de-superheaters, solar thermal, drain pipe heat recovery, non-potable water (e.g., grey water reuse, rainwater harvesting)
• specifications include: engineered drawings, manufacturers’ requirements, system requirements, job specifications, shop drawings
• hazards include: chemicals, machinery, equipment, heights, electrocution, confined spaces, environmental, explosions, leaks, flammability of gases and fuels, sudden release of energy

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