Heat Exchangers

Precision-Crafted Heat Exchangers Built to Global Standards.

Portobello-RMF has vast experience and expertise in manufacturing bespoke and high-quality heat exchangers, such as shell and tube or air coolers.

As an accredited company across numerous quality standards such as ASME U, ISO 9001:2015, ISO 3834-2:2021, ISO 45001:2018 and Lloyds Register Rules for Submersibles and Diving Systems,  we adhere to the highest industry standards for both quality and safety.

With over 90  years of experience, Portobello-RMF can offer a competitive and technical resolute solutions for heat exchanger design, engineering, fabrication and specialist welding on vast material grades. Our expertise supports various industry sectors, including oil and gas, petrochemical, chemical, pharmaceutical, nuclear, subsea and Defence.

Portobello-RMF is a pressure vessel manufacturing company with an internationally recognised reputation for precision and quality, delivering new and replacement pressure vessels for major EPC’s and blue chip companies.

Our skilled team of engineers can produce pressure vessels in various grades of materials and alloys of exceptionally high quality for applications to an extensive range of equipment, from carbon steel, stainless steel, nickel alloys, titanium and zirconium pressure vessels  that adhere to  International Codes and client specifications.

Our pressure vessels are designed and fabricated on-site and can be built in accordance with rigorous specifications with no minimum limitation.

Pressure Vessels can be designed and manufactured from a wide range of materials to any international standard including PD5500, EN 13445 and ASME VIII and where necessary to the PED and PESR.

Our limitations are:

  • 4.5m Diameter
  • 40m Length
  • 80mm Thickness
  • 80 Tonnes


With specialist knowledge and the appropriate resources, Portobello-RMF is among the leading pressure vessel manufacturers in the UK, capable of designing, fabricating and testing new and replacement pressure vessels,  and submersible pressure hulls. 

Portobello-RMF can fabricate pressure vessels to bespoke specifications in a variety of materials, including Carbon Steels, High Strength Steels, Stainless Steels, Duplex & Super Duplex, Nickel Alloys, Titanium, Zirconium, Tantalum, Clad Steels (such as Stainless, Nickel, Titanium, Zirconium and Tantalum).

Typical Materials

We work in all grades of Carbon steel, such as A516 Gr 60N, A516 Gr 70N, P335, Chrome Molybdenum and HIC-resistant steels.

We work in high-strength steels such as StrenX 700, Weldox, Hardox, HY80, H100 and Q1N.

We work in high-strength steels such as StrenX 700, Weldox, Hardox, HY80, H100 and Q1N.

We work in all Duplex & Super Duplex grades, such as UNS S32205, UNS S31803, UNS S32750 and UNS S32760.

We work in all Nickel Alloys such as Inconel 600/601/602CA/625/718, Incoloy 800H/800HT/825 and Hastelloy B3/C22/C276/C2000/G35/X.

We work in Grades 1,2,5,7,9,12,23, and 28.

We work in Grade 702 Zirconium.

We work in CP and 2.5% W Tantalum grades.

We work in all classing grades, such as Stainless, Nickel, Titanium, Zirconium and Tantalum.