User Guide

Pressure Testing PureFlow Systems
55
PG-PF 724998 0320 PureFlow System
This force is many times greater when
air is used as a test medium. To reduce
the risk of personal injury, ensure that all
connections are completed before testing.
Use only the pressure and time required to
determine that the system is leak free.
* If the pressure in the system declines
more than 8 psi during the 15-minute to
one-hour period, repressurize the system
to the original test pressure and retest. If
the system pressure declines more than
8 psi again during the test period, test
the distribution line test caps or any other
󶈵ttings in the system with the approved
leak-detect solution.
Note: Some plumbing 󶈵xtures may not
withstand test pressures greater than
80 psi. Consult 󶈵xture manufacturer’s
instructions for pressure limitations or
plug all distribution lines at the 󶈵xture
end. The system shall, at a minimum,
withstand the test pressure, without
leaking, for a period of 15 minutes.
WARNING!
PRESSURES USED IN
TESTING CAN BLOW
UNMADE OR INCOMPLETE
CONNECTIONS APART WITH
TREMENDOUS FORCE!
Air Testing
Air testing of a Viega PureFlow plumbing
system shall use the following procedure
provided to ensure safety
.
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.
Preparing for Air Pressure Test
■ Notify other trades that air pressure
test will be conducted on the plumbing
system. Only quali󶈵ed personnel should
be present during 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.
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 (over the course of
approximately 30 seconds).
■ 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.