User Guide
Table Of Contents
- Introduction
- Codes, Standards, and Certifications
- PureFlow Press Fittings
- PureFlow Crimp Fittings
- PureFlow Tools
- Product Instructions
- Tubing Overview
- Design Considerations
- ManaBloc Systems
- Installing PureFlow Systems
- Storage Recommendations
- Handling Viega PureFlow PEX Tubing
- Removing PureFlow Connections
- Repairs
- Freezing
- Water Heaters
- Heaters, Flues, Vents, and Recessed Lights
- Fastening the PureFlow System
- Supporting PureFlow PEX Tubing
- Installation Considerations
- Noise and Water Hammer
- Shower Valves
- Electrical Grounding
- Expanding Foams
- Fire Stop Compounds
- Tubing Expansion
- Calculating Expansion Loops and Offsets
- Domestic Hot Water Circulating Systems
- Installing Viega PureFlow Fittings
- PureFlow PEX Tubing Installed in Slab
- Installing PEX Under a Slab
- Installing PEX Below Grade as Service Line
- Pressure Testing PureFlow Systems
- System Disinfection
- Limited Warranty
14
PG-PF 724998 0320 PureFlow System
Viega PureFlow Press Hand Tool
1
FostaPEX
®
2 3
8
Pure
Flow
1/2”
9
1
Square o tubing to proper length.
Uneven, jagged, or irregular cuts will
produce unsatisfactory connections.
2
If using FostaPEX tubing, insert into prep
tool, push and turn until no resistance is felt.
If using Viega PureFlow PEX, continue to
Step 3.
3
Insert PureFlow Press tting with attached
sleeve into tubing and engage fully.
4
Ensure full tubing insertion at view
holes in attached press sleeve. Full
insertion means tubing must be
completely visible in at least two view
holes and partially visible in the one.
5
For the 1" tool, open the tool handles
fully (thumb grip is available to maintain
open jaw). Then
close tool jaws to
engage ratchet (ensure that thumb grip is
returned fully forward before closing jaws).
6
Position the PureFlow press tool
perpendicular over the press sleeve,
resting it against the tool locator ring.
For 1" tool,
close tool jaws to engage
ratchet (ensure that thumb grip is
returned fully forward before closing jaws).
Make sure the PureFlow press tool is
properly aligned (see step 8 if it is not).
The tool locator ring must
be in the factory-installed
position while making a press
to ensure a consistent leak-
proof connection. It may be necessary
to rotate the tool locator ring to avoid
interference between the ring and tool.
7
Close handles, using trigger to reduce
grip span if desired.
8
If the PureFlow press tool is not
properly aligned with the locator ring,
use the emergency release (using a
screw driver to turn the emergency
release) to open the press tool. Once
released, align the PureFlow press tool
properly and go back to step 6.
WARNING!
The connection is not leak-proof
when the tool has been opened
by emergency release. The tool
locator ring must be present to ensure a
proper PureFlow Press connection.
9
Extend the PureFlow press tool handle
and continue ratcheting until automatic
tool release occurs at the proper
compression force.
6
Product Instructions
CAUTION!
Do not press twice.
4
Pure
Flow
1/2”
7
5
1" Tool
only