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
ManaBloc Systems
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PG-PF 724998 0320 PureFlow System
4. Position bottom metal tie-rod into the
bottom clip of the mounting brackets
then roll manifold toward top clip.
The MiniBloc may be mounted either
vertically or horizontally.
Vertical
mount
Horizontal
mount
5. Complete mounting by rmly pushing
the MiniBloc toward the top clip of
the mounting brackets, which should
spread and snap over top of the
metal tie-rod.
Vertical
mount
Horizontal
mount
Mounting PureFlow Press
and PureFlow Crimp Polymer
Manifolds
Viega recommends using a minimum of
two mounting brackets on manifolds with
three ports and larger.
1. Measure the distance (A) between the
rst and last set of manifold ports (as
shown below). Using a straight edge,
mark dimension (A) on the mounting
surface. Ensure the mounting surface
is level and suitable to support the
weight of the manifold lled with water.
1
2 3
4
5
6
A
2. Align the 1¼" lock clips (B) with the
marks transferred on the mounting
surface from Step 1 and attach
them using a 1" or longer screw
appropriate for the mounting surface.
Note: Lock clips sold separately (part
number 58075).
B
A
3. With the lock clips in the open position,
insert the manifold body into the clips,
centering them between the end ports.
4. Push evenly on both ends of the
manifold until lock clips snap manifold
body rmly into place. Note: Lock the
clips into their second locking position
to adequately secure the manifold.










