Rehau EVERLOC+ Serie Instrucciones Del Producto página 20

Protecting EVERLOC+ Joints
REHAU permits EVERLOC+ compression-sleeve joints (polymer and
LF brass) to be buried or concealed. REHAU recommends that
threaded connections never be buried or concealed as they must be
accessible for periodic inspection, per building codes.
The requirement to wrap an EVERLOC+ joint can depend on many
factors including location and the presence of other materials that
contact or can come in contact with the joint. In general, REHAU
recommends the following:
Concealed in inaccessible locations (e.g. behind drywall):
When EVERLOC+ joints are concealed but are still in open air space,
it is not necessary to wrap the joint. However, the installer should
ensure that the fitting does not come in contact with chemicals (e.g.
PVC glues, solvents, cements) that could damage the fitting material.
Use only Linerless Rubber Tape, Black (Art. 241002) also available at
most distributors and retailers (Scotch™ 2242).
Buried directly in a concrete slab:
When burying an EVERLOC+ joint directly in a concrete slab, it is not
necessary to wrap the joint. However, there are some additives in
concrete that could potentially damage the fitting material, and in this
case, wrapping is recommended. Use only Linerless Rubber Tape,
Black (Art. 241002) also available at most distributors and retailers
(Scotch™ 2242).
Buried in a sub-base or underground in soil:
In these instances, the joint must be wrapped. Use only Linerless
Rubber Tape, Black (Art. 241002) also available at most distributors
and retailers (Scotch™ 2242).
With foaming agents:
Foaming agents and solvents in closed-cell foam insulation kits can
damage the PPSU fitting material. Therefore, it is necessary to wrap
polymer fittings in a protective tape to protect from polyurethane
foams. Use only REHAU Protective Tape, Red (Art. 246869-001) or
Linerless Rubber Tape, Black (Art. 241002).
When wrapping an EVERLOC+ joint, the following is required:
- Wrap the joint, ensure minimum of 50% overlap of the tape.
- Avoid wrinkles or kinks in the tape and ensure the joint is completely
covered, extending on to the pipe as necessary.
- Indicate the location of each joint as required on the "as-built"
drawings.
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NOTICE
Use only REHAU recommended protective tapes for wrapping
EVERLOC+ joints. Do not use other types of tapes (e.g. duct tape,
standard electrical tape) to wrap the joint, as chemicals in the
adhesive may not be compatible with the PPSU fitting material or the
PEX pipe.
NOTICE
Never use heat shrink tubing (e.g. RAUCROSS) to wrap the joint, as
the extremely high temperatures produced from a heat gun will soften
the pipe and may cause it to pull away from the fitting. See also
REHAU Technical Bulletin TB266: Protecting EVERLOC+ Joints.
Pressure Testing
The compression-sleeve joint is ready for immediate pressure test and
use after completion of the assembly process. There is no wait time
for the system to be put into service. See also REHAU Technical
Bulletin TB211 Pressure Testing of REHAU PEXa Piping Systems.
Pressure and Temperature Ratings
The maximum temperature and pressure ratings of the EVERLOC+
compression-sleeve fitting system is in accordance with ASTM F877
and CSA B137.5 for SDR9 PEX, see REHAU pipe product submittals
for ratings.
Ultraviolet Resistance
The fittings and sleeves must never be stored in direct sunlight or
stored outside of the original cardboard packaging. In addition, the
system is not intended for permanent outdoor applications or in areas
with continuous exposure to UV.
Freeze Break Resistance
The flexibility of the RAUPEX pipe allows it to expand as water freezes
in the pipe as long as the pipe has room to expand. However, this
does not ensure the integrity of the joint. Therefore, installers must
take precautions to ensure that pipes and fittings do not freeze. This
may result in leaks and operational failures.
Chlorine Resistance
EVERLOC + compression-sleeve joints have the same chlorine
resistance ratings as the RAUPEX pipe. Refer to REHAU Technical
Bulletin TB135 Chlorine Resistance of RAUPEX Pipe for permitted
operating conditions.