FLEXWELL®-HL Double Wall Stainless Steel Pipe

The FLEXWELL®-HL pipe system is specifically designed for hazardous fluids and gases, such as gasoline, ethanol blends, biodiesel, LPG and other hazardous fluids typically transported in chemical plants.

The pipe is used in gas stations underground as well in above ground applications such as marinas and bulk facilities.

FLEXWELL®-HL can operated as a suction or pressure systems and can be continuously monitored via suitable and approved leak detection systems.

FLEXWELL®-HL is a flexible pipe system made of corrugated 316lL (1.4404) stainless steel primary and secondary pipes for operating pressures of up to 145 PSIG (10 bar). The interstital space between primary and secondary pipe can be used for leak detection.

The pipe is corrosion protected by a polyethylene jacket. The stainless steel pipe provides an enduring, impermeable barrier, even with future new fuels or fuel combinations.

FLEXWELL®-HL is available with an ID of 1" (ND 25) to 3" (ND 80) for conventional use at an operating pressure of up to 145 PSIG (10 bar) and temperatures between -50° to 60° C (-58° to140° F).

For gases such as LPG the pipe can be operated at up to 360 PSIG (25 bar) with a special end fitting that connects the reinforcement tape in the interstitial space.

FLEXWELL®-HL is manufactured in factory lengths up to 3,000 ft. FLEXWELL®-HL can be laid directly into a trench in one piece following any directions without necessity of intermediate joints or fittings.

The corrugated design of the primary and secondary pipes assure excellent impact resistance while at the same time providing a high degree of flexibility.