Install Instructions

Pressure Testing Viega PureFlow Systems
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IM-PF 724596 1021 PureFlow Water System (EN)
Air testing of a Viega PureFlow plumbing system shall use the checklist
provided to ensure safety.
14.2 Air Testing
■ Notify other trades that air pressure test will be conducted on the
plumbing system. Only quali󶈵ed personnel should be present during
the system testing.
■ Use only compressed air or nitrogen that is free of any kind of
lubricating oils.
■ Do not conduct pressure testing overnight or if a large temperature
change is anticipated.
■ Before pressurizing the system, conduct a visual inspection to ensure
proper connections have been made throughout the plumbing system.
■ All personnel involved in the pressure testing shall wear, at a minimum,
eye and hearing protection. It is recommended the person applying
the pressure to the system wear a full face shield.
■ Only Viega PureFlow plumbing system components (tubing/󶈵ttings/
manifolds) shall be pressure tested. All other system components
(water heaters and 󶈵xtures) shall be isolated from the pressure test.
■ Contact the inspector and schedule the pressure test.
WARNING!
It is the responsibility of the installer to read and
understand the below pressure testing criteria and all
safety precautions. Compressed air can store extremely
high energy as compared to compressed water systems.
Failure to follow these steps could result in personal injury,
death and/or property damage.
14.2.1 Preparing for Air Pressure Test
14.2.2 Pressurizing the System
■ Verify no other trades are present prior to starting the pressure test. Only
quali󶈵ed testing personnel should be present during pressure test.
■ Introduce pressure into the system as outlined in the stages below.
Stage 1:
Gradually increase system pressure to 10 psi (approx. 30-second duration).
■ Wait for 10 minutes before inspecting pressure gauge.
■ If pressure holds steady, continue to Stage 2.
■ If pressure falls over the test period, look for potential leaks with an
approved leak-detect solution. Once system pressure is completely
relieved and the leak is 󶈵xed, restart test procedure.