Technical compliance

Commercial compliance

Quality & integrity compliance

Frenstar delivers small, medium and large butterfly valve projects to both onshore and offshore facilities within UKCS and globally. Our reputation for successfully delivering valves on time, safely, cost effectively and to full client compliance has led to a diverse customer portfolio including major end users, EPCs and prominent engineering firms.

“Hard to find valves for maintenance & shutdowns are our speciality.”

What We Do

We have a proven track record of manufacturing and supplying valves and actuators to oil & gas projects. Since Frenstar’s inception in 1977 we have focused on these specialist areas:

Onshore & Offshore Facilities

We offer expertise in onshore oil & gas refineries and terminals to deliver tailored solutions to meet the service requirements of such facilities.

Comprehensive expertise in valve solutions for offshore facilities ranging from minor upgrades to large-scale greenfield projects. Frenstar are well established as the go-to stockist for Brownfield UKCS MRO work scopes. This exceptional reputation comes as a result of our fast track, flexible nature and ability to dispatch same day on urgent projects.


We have tailored our stock offering materials to meet numerous FPSO butterfly valve specification requirements, having previously supplied SBM and MODEC vessels. We have extensive experience in the manufacture and supply of valves that support the topside processing requirements of FPSO vessels.


Frenstar offer a range of solutions tailored specifically toward decommissioning and peak asset management. These solutions offer the flexibility needed to suit the end of service and decommissioning requirements.

Other market segments serviced

Petrochemicals / Water & Waste Water Treatment / Process & Chemicals / Pharmaceutical / Power / Fertiliser.

Our Services

Frenstar provides a range of relevant services including:

  • Large stock holding – standard and exotic valves in a wide size range
  • Hard-to-find valves sourcing specialist
  • Project supply & management
  • Rapid response to request for quotation
  • Additional services include : Coating / Testing / CAD design

Frenstar have been supplying valves to oil & gas projects for over four decades and our innovative approach allows flexibility for fast track, responsive service for critical repair work.

Being close to our customers enables Frenstar to understand their challenges and respond to their needs using our engineering expertise in the delivery of superior results.

Customer satisfaction and outstanding project management is paramount to Frenstar. Our long-standing client relationships are built on trust that we will meet delivery. This trust is given as a result of our predictable first-class project execution and persistent focus on delivery.

“Long-term framework contracts with major end users are testament to our industry reputation.”