United Special Technical Services (USTS) is a joint venture between United Pipeline Systems and STS. USTS provides thermoplastic pipe lining, flowline high-density polyethylene lining services and rotational lining throughout the Middle East and Africa, including in Algeria, Bahrain, Egypt, Kuwait, Saudi Arabia, Libya, Oman, Qatar, Tunisia, United Arab Emirates and Yemen.

Lining Technologies

hdpe pipe lining

Tite Liner® System

United Pipeline Systems developed the Tite Liner® system in 1985. Since then, over 80 million feet of pipelines have been lined with our internal pipe lining system.

prelined pipe spools

PreFITâ„¢ Tite Liner® System

United Pipeline Systems is pleased to announce the PreFIT™ Tite Liner® system, a new product offering of pre-lined pipe with a range of supporting end connectors. This system utilizes thermoplastic lining inside a steel pipe, effectively combining the strength of steel with the corrosion, chemical and abrasion resistance of thermoplastic.



Advances in lining technology have enabled United to introduce the Safetyliner® product - an innovative plastic pipe liner that offers an extra level of pipeline protection.

condition assessment

Condition Assessment

Pipelines can be inspected for possible degradation post-lining. United Pipeline Systems offers these remote field technology (RFT) inspection services through a partnership with Russell NDE Systems Inc. of Alberta, Canada.


Joining Methods

Browse the various types of terminations and end fittings for the Tite Liner® system.


Pipeline Management and Monitoring

Learn how the non-bonded, pipe-within-a-pipe nature of the Tite Liner® system allows continuous monitoring of the completed pipe lining system.


Rotational Lining

Rotational lining (aka rotolining) is a technology which allows us to bond a uniform, seamless polymer layer to the interior of virtually any metallic structure, regardless of shape and complexity.


United Special Technical Services, LLC

PO Box 307
Al-Harthy Complex
Postal Code 118, Sultanate of Oman

Tite Liner® System Animation

Over 80 million feet of pipelines have been lined with our internal pipe lining system.