Polymeric Pipe 3-D Liner
Multi layer liner designed capable of containing all refined hydrocarbons, sour gas and most chemicals
Polymeric's Tri-Extruded Chemical liner is produced of 3 distinct layers. The outer cladding layer is of PE 100 to establish dimension, the middle is a "Tie-Layer" to bond the HDPE to the inside chemical resistant polymer as the P/E and inside are not compatible due to the vast temperature differences. The inside is produced with a high performance engineered thermoplastic. This process is simultaneous and continuous operation.
The Tie-Layer chemically and molecularly bonds to both creating a composite sandwich.
The cost producing pipe of the singular chemical resistant engineered thermoplastic resin would generate costs that would be beyond most budgets and there by be prohibitive in many applications. Having the chemical barrier resin only a few mils thick drastically reduces cost yet provides the necessary chemical resistance needed for a full functioning barrier.
The PE 100 was selected due to its superior mechanical and temperature values VS P/E 3408. The PE 100 is necessary to generate a total liner profile thickness so that the composite is "WORKABLE". A thin film of only a few mils thick would be very difficult to impossible to manufacture as well as to incorporate and install.
The Polymeric Tri-Extruded 3=D liner was originally developed for large diameter hydrocarbon pipelines in sensitive installations such as wet lands and river crossings. The internal polymer barrier is resistant to all know solvents <200F (94C), all natural and refined hydrocarbons, and its operational temperature is only limited by the PE 100 which is also 200F.
All refined hydrocarbons have showed absolutely no affect on the polymer barrier and this shield of the olefin jacket provides the best composite available within the market today.
The Polymeric Tri-Extruded 3-D liner has been subjected to through, severe and diligent testing , proven to exhibit over 400 X’s permeation efficiency verses all grades of polyethylene. Its ideal range of ph 2 thru 12 reveals a superior and broad range of performance.
Chemical plants and refinery requirements preclude, in many cases, pure olefins due to the molecular origin of their feed stocks, crude and natural gas. However, Jet Fuel was the primary target for the 3-DO liner because of the locations of pipelines installations beneath sometimes feet of thickness of concrete run ways, taxiways, parking surfaces. Excavation thru these thick concrete surfaces would be major undertakings completely isolating the daily parking, loading, unloading, and refueling of commercial aircraft.
The equally difficult replacement of piping within a refinery and chemical complexes would be as demanding. Rehabilitation of these similar piping structures now is a real option. Chemical and temperature criteria have always been the primary concern whether the original design requirements were carbon, cast, ductile or stainless steels.
The Polymeric 3-D tri-extruded liner does not have the many limitations associated with lined composite metallurgical and thermoplastic piping and fittings utilizing PTFE (Teflon) and PVDF which have been present in the industry for many years. These applications have been limited to flanged jointed spools of various dimensions of 20 ft. / 6 meters lengths. Polymeric's Tri-Extruded 3-D liner can be installed in lengths of many hundred lineal feet / meters there by eliminating flanges and meet the demands of difficult flow streams.
***Applications that require elevated operating temperatures, (pipe / linings) would be able to use the pure chemical barrier polymer having operating temperatures of 250 - 270 C (482 –518 F) within specific environments and conditions.
Options of remediation of chemical and refinery piping both buried and aerial are now available. Fittings and valves must still be excavated; however, straight or sweeping pipe lays involving hundreds of lineal feet / meters are now possible with Polymeric Pipe's Tri-Extruded 3=D liner in service application not before available. Today, Polymeric Pipe offers its 3=D liner in diameters from 2.875” thru 15.5” (73mm – 400mm)
Polymeric has always been able to install its basic high density high molecular weight polyethylene liner in applications within its chemical envelope but now include but now include more agressive environments as noted;
Polymeric's systems can address the most demanding remediation and rehabilitation needs, some of which have included:
Pricing: upon request
Pull Lengths: Pull lengths are the same as conventional P/E. The 3=D liner will be available only on Polymeric Mega-Coil reels
Handling & joining: Polymeric Mega-Coil reels / terminated with flanges.