Install Instructions

PPSU (polyphenylsulfone) or
Polymer Fitting Limitations
PPSU/Polymer ttings shall not be used in applications
where temperature and pressure ratings are not
regulated or are known to evidence exposures beyond
those listed within this manual. See F2159 & F1960
installation instructions and application problems.
Sioux Chief PPSU ttings use engineered resin to
achieve substantial strength and chemical resistance.
PPSU, must be installed carefully and should adhere
to the guidelines laid out in application installation and
problem sections for each ASTM system standard and
reiterated below:
Fittings shall be stored away from and not installed
with exposure to direct sunlight, open ame/heat
source or volatile compounds (including PVC glues,
primers or other solvents).
Do not impact PPSU/Poly ttings or subject ttings to
torque limits exceeding 100 lbs of force.
Do not use PPSU ttings in radiant systems with
glycol that has not expressly been listed nor in
concentrations above established limits.
Brass Fitting Limitations
Sioux Chief’s PEX ttings, valves and connectors/
adapters are made from multiple materials. These ttings
should be installed where allowed by code for hot/cold
plumbing applications. For aggressive water jurisdictions
prone to dezincication or for areas requiring no-lead
ttings, Sioux Chief carries a line of dezincication
resistant brass and copper ttings. Fittings should not be
buried directly in soils.
Do not allow PEX tting barbs and tting ends to be
deformed or damaged. A tting that exhibits a damaged
sealing barb or sealing surface should be removed
from service.
Copper Fitting Limitations
Sioux Chief’s capability as a world leading engineered
copper-tting provider allows Sioux Chief the option of
offering naturally no-lead and dezincication resistant
copper ttings for PEX F1807 applications.
These ttings are:
Economical
Accepted
Listed
Historically proven
Robust metal
Do not bury copper ttings or connections directly in
soil. Proper wraps must be used when ttings are buried
in soil. Do not install copper ttings in areas prone to
copper deterioration.
Do not allow PEX tting barbs and tting ends to be
deformed or damaged. A tting that exhibits a damaged
sealing barb or sealing surface should be removed
from service.
Stainless Steel Fitting Limitations
Sioux Chief sells some PEX ttings in stainless alloys
or as an assembly with stainless alloys. Assure these
ttings are used as potable water ttings for the
referenced applications within this manual. Stainless
steel products should generally be protected from caustic
environments that are known to degrade stainless
materials including, but not limited to, high chlorine or
bromine environments and/or other environments that
produce halogens.
Avoiding Common Problems
Continued
Avoiding Common Problems
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