tube supply international logo

Manufacturers agents, stockists and suppliers of high quality
Heat exchanger/boiler tubes to the process industries.

Call us on: 07590 996953

Associated Products

tsi plugs image associated products
tsi gaskets image associated products
tsi support boxes images associated products

Here at Heat Ex Tube Limited, we don’t only stock high-quality heat exchanger tubes to the process industry, we also supply an extensive range of products to ensure systems function correctly and efficiently – including forged header plugs and pressed support boxes.

Forged header plugs

Used in air-cooled heat exchangers to seal the ends of piping systems, our forged header plugs or stainless steel plugs are ideal for the petrochemical and power industry.

They offer:

  • high strength
  • lightweight
  • precision
  • long-lifespan

Pressed support boxes

Air cooled exchangers have a bundle of finned tubes with rectangular box headers on both ends of the tube. Pressed support boxes are used to distribute fluids from the piping to the tubes and fully support finned tubes according to API 661.

Get a quote for forged header plugs/pressed support boxes

Manufactured in aluminium, brass, copper and galvanised steel, we supply pressed support boxes as half boxes or in rectangular/hexagonal formats to suit the finned tube pitch.

Forged header plugs are available in carbon steel (ASTM A105) and stainless steel (A182), as well as nickel alloys and titanium.

Whether it be stainless steel plugs or other forged plugs, for a quote please email specified quantities, thread sizes and threaded lengths to We can cater for unusual sizes if drawings are provided.

The more information you can give us about required pressed support boxes and stainless steel plugs – the more accurately we can price our products.

Order forged header plugs/pressed support boxes

When you make an enquiry, a member of our experienced team will get back to you as soon as possible – providing you with a clear breakdown of costs.

Once you’re happy to proceed, simply call us on 07590 996953 or email and we can help you to place your order.

Fast, efficient delivery of forged header plugs/pressed support boxes

At Heat Ex Tube Limited, we guarantee an efficient service for all customers – regardless of industry and location.

We make sure our forged header plugs and pressed support boxes are dispatched quickly and can offer emergency delivery as an additional service to meet urgent requirements.

The comprehensive quality assurance accreditations of our production mills ensure that the products supplied are fully in accordance with the highest industry standards.

Read more >

A Conversion Chart covering tube wall thickness detail for BWG/SWG Equivalents in inches and millimetres

Read more >

  • Heat Exchanger Fabrication/Repair Industry
  • Oil Refineries
  • Petrochemical/Chemical Plants
  • Fertiliser Production Plants
  • Power Generating Stations
  • Steel Production Plant Furnaces and cooling sections
  • Metals Smelting Facilities
  • Gas Separation,Compression and distribution plant
  • Marine Engine cooling repair and maintenance
  • Offshore Production Platforms

Read more >

Heat Ex Tube Limited
Salvus House
Aykley Heads
Durham City

Tel: 07590 996953

© 2024 Tube Supply International Ltd.

site by_climb