LinePipe is ideal for new flowline installations, especially in corrosive environments onshore and offshore. LinePipe is also the most cost-effective way to permanently remediate existing flowlines and restore them to full strength and full flow.

LinePipe is a lower installed, and operating cost high pressure pipeline system for in field gathering and injection applications. LinePipe is significantly lower installed cost than both steel and stick fiberglass, and since it never corrodes, as greatly reduced operating and maintenance costs.

Yes, LinePipe has been subjected to the industry’s most extensive quality-assurance testing, and is fully qualified and certified for oil, water, gas or multi-phase service. LinePipe is the only spoolable product licensed to API 15HR, “Specification for High Pressure Fiberglass Line Pipe,”  and additionally meets these specifications:

• API 15S – “Qualification of Spoolable Reinforced Plastic Line Pipe”
• CSA Z662 Section 13.1 – “Fibreglass Pipeline”
• ERCB, expanded to include gas service up to 600 ANSI pressure rating, and H2S applications where the partial pressure of H2S does not exceed 7.25 psi (50 kPa)
• ASTM D2996 – “Standard Specification for Filament-Wound Glass-Fiber-Reinforced Thermosetting-Resin Pipe.”
• PEMEX certification for oil, water, gas or multi-phase service
• NRF-185
• Internal specifications of ExxonMobil, Shell and other major oil companies

Yes. Fiberspar’s product-development specifications are based on industry standards (CSA, API, ASTM, or company specific.), and are manufactured completely in-house under an API Q1, and the ISO 9001 quality system.

Fiberspar conducts a comprehensive testing program using ASTM and other industry testing standards. We have full mechanical and resin-testing capabilities in house. We also conduct long-term hydrostatic testing, and use a Three-Tier Production Reporting System:

• Certificate of Conformance
• Manufacturing Report
• Engineering Report

Download Fiberspar’s Engineering Guide for more information.

LinePipe is produced from 2 ½” nominal to 6 ½” nominal sizes, with pressure ratings of 300 psi, 750 psi, 1,500 psi, and 2,500 psi.

Fiberspar patented connectors use mechanical compression and O-ring seals, and do not rely on glue, epoxies or threads cut in the laminate. Connectors can be supplied with any flange or other end fitting to fit customer configuration. Fiberspar connectors have a design safety factor of more than four times the pipe operating rating, and the fitting installation techniques are compatible with normal field operations. Personnel can be trained to install Fiberspar connectors. For more information about Fiberspar connectors, click here.

Yes. A full range of standard connectors is available for most situations, but Fiberspar connectors can be terminated to suit any customer installation, e.g., threaded, flanged or weld neck.

Fiberspar LinePipe is engineered for a 20-year design life in two operating temperature ranges: -29°F (-34°C) to 140°F (60°C) and 180°F (80°C).

Yes. Not only is the fluid friction less on new product, but the thermoplastic liner also retains this lower friction throughout its operating life. Fiberspar recommends using a ‘C’ factor of 150 in the Hazen-Williams formula for friction loss. In higher flow regimes, the smooth internal surface of Fiberspar pipe and the minimal use of connectors also reduces turbulence.

Generally yes. A table of recommended usage for Fiberspar LinePipe is provided in the document Fiberspar LinePipe Engineering Guide. To download, click here.

Industry testing has shown that thermoplastics provide a generally superior resistance to abrasive fluid flows when compared to steel. In tests performed to date, LinePipe outperformed steel in erosion, but testing of specific fluids would be required to set an exact limit for velocities. Without carrying out specific testing, a conservative approach to erosive flow is to use the same velocity limits as for steel.

Fiberspar’s LinePipe is constructed with an external HDPE wear resistant layer, which is UV protected. This layer also protects the underlying glass fiber and epoxy structural layers from UV, or abrasive action.

Fiberspar has conducted tests proving that LinePipe can be stored on a spool for more than two years with no detrimental effect on the pipe. This is subject to the low temperature provision, and particular care should be taken when storing in freezing temperatures that water does not enter the pipe. When storing LinePipe, the ends should be sealed to prevent rainwater entry.

In contrast to carbon steel pipelines which are destroyed by corrosive fluids, Fiberspar LinePipe is unaffected by CO2, or even supercritical CO2. Since thermoplastics are not completely impermeable, small amounts of CO2 can permeate through the liner. This permeation is on the order of 0.001% of the total flow, and not normally detectable.

LinePipe can be stored at temperatures down to -30°F (-34°C). Precautions need to be taken to ensure that no liquids are left in pipe to be stored where freezing is possible. Expansion of freezing liquids can permanently damage LinePipe. Precautions against very low temperatures such as covering or indoor storage should also be taken.

Hoop stress is calculated using a standard formula. Full details can be seen in the document Fiberspar LinePipe Engineering Guide. To download, click here.

Thermal expansion coefficients are about 30% more than steel (about the same as aluminum). However, the stresses induced by temperature change on restrained pipe are much smaller than steel because the modulus is much lower. This property can be used to avoid significant thermal movement, for example, by installing the line under very modest tension when cold. Increasing temperature would then merely offset this tension without pipe movement.

The "R"rating for LinePipe is 16.7. The minimum operating bend radius for any pipe size can be calculated by multiplying the pipe outside diameter by 16.7. For example, a 3 ½-inch nominal 1,500-psi pipe has an OD of 3.57 in. and, therefore, a MOBR of 60 in.

Fiberspar has developed the epoxies used in LinePipe over many years to give optimum performance not only in service but in spooling and manufacturing. The detailed chemistry of Fiberspar epoxies is considered proprietary.

Spool sizes are selected depending on the size and pressure rating of the pipe to optimize the quantity on the spool. The most common spool sizes used are: 144-in. (366-cm) flange with 104-in. (264-cm) core, 168-in. (427-cm) flange with 115-in. (292-cm) core, and 192-in. (488-cm) flange with 115-in. (292-cm) core.