Polypropylene piping for acid waste
All Orion joining systems are available molded from proxylene blueline resin.
Proxylene (an Orion trade name) is a fire retardant, thermoplastic material with excellent
resistance to most common organic and mineral acids, their salts, strong and weak alkalis and
most organic chemicals.
Proxylene is compounded of polypropylene Type II copolymer with fire retardant additives.
Polypropylene is a thermoplastic material characterized by a stable and highly ordered steroregular
molecular chain. This structure produces a rigid material with good strength and aging properties.
Proxylene qualifies for Underwriters Laboratory certification of V-2 when tested under UL
Subject 94 in thickness of .150 and over. Based on parameter of ASTM D635, Proxylene also meets
established industry criteria for self-extinguishing. Proxylene qualifies under ASTM D2843 smoke
chamber test with a maximum value of less than 50. It also does not contain toxic gases as do PVC
and other petroleum-based plastics.
Brownline pipe offers all the advantages of Blueline Proxylene in installations where non-fire
retardant materials are acceptable.
Kynar® brand Polyvinylidene Fluoride (PVDF)
PVDF is the most resistant of all thermoplastics. It offers superior chemical resistance
to many solvents, acids, bases and halogens. It is designed for extra tough applications where
plastic may not have been considered before.
It has been certified to meet ASTM E-84 and UL 723 standards for flame spread and smoke
generation. The certification means that for the first time PVDF piping systems, when approved,
can be used safely in areas such as air plenums where typically local codes have prohibited use
of plastic pipe due to fear of fire.
In addition to being non-combustible, PVDF is able to maintain much of its strength and
chemical resistance within a broad temperature range of -40°F to 285°F.
Sizes from 112" to 12" are offered. Single wall and double wall configurations are available.
Molded drainage pattern fittings are also offered.