Many storage tanks used in the petrochemical industry are equipped with a skimmer system or a suction line to draw product from the upper liquid level and reduce the carryover of particles, water or any other contaminant which is present in the stored product.

The Coflexip® standard flexible steelpipe design, consisting of an articulated stainless steel carcass and an extruded thermoplastic outer jacket has, when installed in a skimmer system or used as suction line, the same advantages as when used in the drainsystem of foamsystem. The unique repeatable lay pattern needs only limited space. The simple system, only one moving component, combined with the high quality materials used ill ensure a 20 year design life trouble free operation.

For storage tanks with floating roofs, also IFR, the flexible steel pipe can be attached to the underside of the roof, of with fixed roof tanks we can suggest an arrangement with a pontoons, where one or two flexible pipes will connect the pontoon to the nozzle in the tank wall.

The patented two flexible pipe system needs no additional structures to keep the pontoon on the same position in the tank, eliminating any danger of uncontrolled movements of the pontoon floating on the stored product.

Who we are

TReK STS, based in Rotterdam, acts as distributer and agent for products used for refining applications. Having in-depth knowledge of these products, combined with a vast experience, we advise and deliver to our customers in Belgium, Germany and the Netherlands.

Latest News

Liquid Leak Detection Systems

TReK STS is very proud to inform you that we have recently added a new line of products to our portfolio, Liquid Leak Detection systems made by TTK S.A.S.

TTK's concept, intelligent cable sensing, is unique and offers innovative products and tailored solutions for hydrocarbon leaksensing as well as waterleaksensing and in some instances, vapour detection.

Read more about these products at


Coflexip® - Flexi France state of the art production facility is located in Le Trait, Normandy, France. Coflexip® is design and market leader, having more than 40 years’ experience in the design, production and installation of flexible pipe systems. Coflexip® is a registered tradename of FlexiFrance SA, part of the TechnipFMC Group, a worldwide multinational with over 45000 employees.

TTK S.A.S. has a 25 years' expierence in designing, manufacturing and installing innovative digital liquid leak detection equipment, and has build its brand name on Quality and Innovation.


Contact us


De Coopvaert Building
Blaak 520
3011 TA Rotterdam

Tel: +31 (0)10 486 8839