Install Instructions

Pressure Testing Viega PureFlow Systems
81 of 88
IM-PF 724596 1021 PureFlow Water System (EN)
Stage 2:
Gradually increase system pressure to 50 psi (approx. 1-minute duration).
■ Wait for 10 minutes before inspecting pressure gauge.
■ If pressure holds stable, continue to Stage 3.
■ 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 testing procedure from beginning.
Stage 3:
Gradually increase system pressure to 100 psi (approx. 1-minute duration).
■ Inspect gauge pressure over next 10-minute period to verify pressure
has not decreased more than the allowable variance noted in "Testing
PureFlow Systems (Branch and Main / ManaBloc)" on page 79.
■ If pressure variance allowed is not exceeded, the system test has passed.
■ If pressure decreases more than the allowable variance, the test has
failed. Apply approved leak-detect solution (see "Leak Detection") on
󶈵tting and/or manifold connections to isolate the location of the leak.
Once system pressure is completely relieved and the leak is 󶈵xed,
start testing procedure from beginning.
14.2.3 Completing the Air Test
■ Depressurize system.
■ Use of the same safety equipment applies to these steps.
■ Slowly bleed o󶈴 any remaining air pressure from system (approx.
1-minute duration).
■ Notify other trades the test is complete and work area is safe to occupy.
■ Document the time and date test was completed and the pressure
and duration of the test.
Viega has identi󶈵ed the leak detect solutions listed below as being
compatible for use with Viega PureFlow Press system components.
Consult leak detect manufacturer for proper application and product
instructions. To determine the compatibility of other leak detect solutions
not listed below, contact Viega Technical Services prior to their use.
■ megabubble
®
Leak Detector
■ Oatey
®
All Purpose Leak Detector
■ Snoop Liquid Leak Detector
As an alternative leak detect, a mixture of original Palmolive Green
™
dishwashing soap (#46100-46200) or Palmolive Ultra
™
(#356140 or 46128)
mixed with potable water at a ratio of two ounces of soap to one gallon of
water (mix Ultra at a ratio of 1.5 ounces per gallon) may be used.
14.3 Leak Detection
If the solution does not show a leak on any of the caps or
󶈵ttings, isolate the ManaBloc by turning the valves to the
“OFF” position, repressurize if needed, and apply the same
solution to the ManaBloc manifold components.