Replacement Hot Air Butterfly Valves for a Steel Plant

Non-standard size, short lead time, easy to strip and clean

A UK steel plant was having problems with the butterfly dampers on a hot air application. The harsh, caustic environment was proving detrimental to the existing dampers.

The Problem

The harsh environment was damaging the existing dampers
Maintenance was difficult, because the dampers could not be stripped down easily
Replacements from the original supplier were on long lead times
The face-to-face dimensions were non-standard, making it hard to find an alternative supplier

Butterfly damper and linkage on a steel plant hot air line — Butterfly damper on the hot air line, with its operating linkage

Hot air butterfly dampers between flanges at a UK steel plant — The hot air dampers in their non-standard installation

The Solution

Designed with AMMTech to fit the existing installation

IPT worked with AMMTech to design and supply replacement valves to suit the existing non-standard face-to-face dimensions, on short lead times.

The AMMTech design was favoured by the customer because it can be stripped down and cleaned easily, which is vital in this caustic environment.

AMMTech stainless steel replacement butterfly valve for a steel plant hot air line — AMMTech replacement valve in the workshop: stainless body and disc, built to the existing face-to-face dimension

The Results

Five DN150 and four DN100 valves supplied
Short lead times, avoiding the original supplier’s long waits
Non-standard face-to-face dimensions matched, so the valves dropped in
Easy to strip down and clean on site
Operating successfully for the last two years

See our butterfly valves, the butterfly valve guide and our industrial dampers. For valve operation, see our actuator services.

Discuss Your Application

Struggling with dampers or valves that are hard to maintain, on long lead times or a non-standard size? Send us the size, face-to-face dimension and duty and we will look at a replacement. Contact us or send us the details.