Petroleum Piping

Petroleum Equipment > Piping

OPW Flexworks

FlexWorks double wall piping is listed with Underwriter's Laboratories under file #MH16678 and labeled as follows: Motor Vehicle Fuels, High Blend Fuels, Concentrated Fuels and Aviation and Marine.

UL Listed Warranted Fuels

Below are the listed fuels that have been tested under UL971 and are warranted for use with the FlexWorks Flexible Piping System.

Motor Vehicle Fuels
100% ASTM Reference Fuel No. 2
100% ASTM Reference Fuel C
85% Reference Fuel C - 15% MTBE
70% Reference Fuel C - 30% Ethanol
85% Reference Fuel C - 15% Methanol

High Blend Fuels
50% Reference Fuel C - 50% Methanol
50% Reference Fuel C - 50% Ethanol

Concentrated Fuels
100% Methanol
100% Ethanol
100% Toluene

Aviation and Marine Fuels
100% Premium Leaded Gas
100% Kerosene

* 3rd Party Approved for DEF

FlexWorks Loop System™

The Industry's First Plug & Play Underground Fueling System

The patented OPW Loop System™, represents the state of the art in a completely integrated, environmentally secure underground fuel delivery system. The system, by design, employs pre-fabricated, factory assembled components, translating into dramatically less field labor and lower associated cost and potential for installation errors. The installed product preserves total underground access to all piping connections, piping runs and containment sumps for hassle-free inspection, maintenance or repair without ever having to excavate or even remove a dispenser. The Loop System™ incorporates field-proven OPW technology into a simplified, completely integrated piping system design that facilitates easy inspection, identification and repair of any problem that may develop and enhances the capability for leak prevention.


NOV Piping

Red Thread IIA
Fiber Glass Systems is the market leader for underground fuel piping systems with almost 50 years of continuous supply of UL Listed products. Red Thread IIA piping is reliable and never been removed because of thus there are no reinstall costs. Our products are designed to meet governmental environmental regulations including EPA.


Dualoy 3000LCX
Advanced performance capabilities of DUALOY 3000/LCX offer a substantial cost control, and most importantly meet the safety and compliance needs. The unique coaxial construction of DUALOY 3000/LCX offers many features and makes this fiberglass pipe the best value in corrosion resistant piping solutions. High strength and stiffness make DUALOY 3000/LCX virtually indestructible, offering predictable and reliable performance. Its compact design allows less trenching and takes less warehouse space.


Dualoy 3000L
Dualoy 3000/L piping systems are made of fiberglass reinforced, aromatic amine cured, rigid, thermosetting epoxy resin. This pipe is manufactured using a unique process where a continuous cylinder is generated with the fibers oriented more near the circumferential and axial directions than with the reciprocal process. Dualoy 3000/L also includes a pure resin liner.

Brugg Piping

FLEXWELL Safety Pipe (FSR)
Flexible, endless production, double-walled, monitorable pipe systemOperating temperature:Operating pressure: PN 25Dimensions: DN 20-100Medium pipe: special steelArea of application:transport of environmentally hazardous, combustible, toxic and dangerous fluids and gases.FSR - an innovative product, tried and tested many times over Our patented FLEXWELL Safety Pipe provides you with a dual-wall system to transport combustible or water-hazardous media – doubly sure, monitorable and design-approved.

Areas of application : Transport of environmentally hazardous, combustible, toxic fluids and gases.

Systematic benefits: More than 40 years’ experience with FLEXWELL Safety Pipe ensures that your planning is reliable, thanks to an approved system

LPG: Flexible, endless production, single-wall armoured pipe system with a film and PE casing to provide external corrosion protectionOperating temperature:Operating pressure: PN 25Dimensions: DN 20-50Medium pipe: special steelArea of application:gases, pressure pipes for water, fuels, etc

Properties: Can be installed quickly and simply, with no need for welding or X-ray tests. Just single compression connectors at the start and end of the entire pipe.

LPG Installation/assembly of a special steel pipe for high pressure, large lengths. Area of application: transport of liquid and gaseous media.

Structure: Flexible, endless production, single-wall, mechanically reinforced pipe system. Medium pipe: special steel

Flexible, endless production, monitorable pipe system
Operating temperature:
Operating pressure: PN 10
Dimensions: DN 40/50/100
Medium pipe: special steel
Area of application: suction pipe, pressure pipe, filling pipe. Use as a vapour recovery pipes stages 1 and 2 possible at any time.

Filling station pipe systems: This specially developed pipe system is a ’must’ for every modern filling station.Its strengths:

 flexible and monitorable
 diffusion-proof and corrosion-resistant
 installation is fast and efficient

Structure of the pipe: This flexible composite pipe has a corrugated inner pipe made of special steel, material no. 1.4404 (equivalent to US standard AISI TP316L). This is wrapped in a helically wound PE casing pipe whose ridges interlock with the corrugation of the inner pipe. The geometry of the helically corrugated inner pipe produces a endless production all-round channel which prevents unwanted escapes of medium in case of damage, so contamination is avoided. This monitoring area can also be used for pressure testing or leakage monitoring. SECON-X is manufactured from corrosion-resistant material so it does not require additional cathodic corrosion protection.

Flexible, single-wall, helically corrugated pipe system, with and without polyethylene corrosion protection
Operating pressure: PN 6/16
Dimensions: DN 12-150
Medium pipe: special steel
Area of application:heat exchangers, transport of gases, water and chemicals, or protective pipe.

NIROFLEX is a flexible corrugated pipe system made of stainless steel. The pipe is produced in large lengths in our factory. The key design element is that the pipe is helically corrugated. The essential benefits of BRUGG’s helically corrugated pipe technology are optimized geometry to minimize flow resistance, good flushing and efficient heat transfer - with excellent flexibility and transverse rigidity at the same time.

Benefits of the system
 installation is fast and efficient
 no welded connections and no fittings
 excellent flexibility and self-compensation
 unique helical corrugation gives favorable flow characteristics
 small radii of bending