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Vapour Combustion Units

Oil & gas · Flare systems

Vapour Combustion Units

Enclosed combustors for loading terminals and tank farms: the shell and stiffener rings, air louvres, legs and base ring, sampling platform and ladder, fabricated for the licensor.

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Allmarc 3D model · to scale

Explore the model

How it is built.

Scroll: the camera moves to each part in turn and ends on the exploded view. Drag to turn it round yourself.

Loading model 0%

01 / 07

An enclosed combustor

Vapour from loading is burned inside the shell, out of sight. The licensor supplies burners and lining; the steel is ours.

Scroll to see how it is built · drag to turn it round

02 / 07

The shell

Shell courses rolled from plate, with stiffener rings every couple of metres.

How is it possible at Allmarc?

Three-roll pinch cum pyramid plate rolls in the Allmarc works

Used here for: The shell

Rolls plate up to 40 mm

All our machinery

Used here for: The shell

Full-penetration welds on built-up sections

All our machinery

03 / 07

Air louvres

Louvres round the base that meter combustion air, folded in our sheet-metal facility.

How is it possible at Allmarc?

Deratech 8 m tandem press brake in the Allmarc works

Used here for: Air louvres

8 m bending length
Tandem technology

All our machinery

04 / 07

Legs and base ring

The shell stands on a base ring on legs, so air reaches the burners from below.

How is it possible at Allmarc?

Kotec newRun10DX CNC beam drilling line in the Allmarc works

Used here for: Legs and base ring

Heavy profiles that need precise holes, where plasma cannot do the job: the lower structure and panel borders of a ground flare, and every bolted PEB and multi-storey frame.

H-beams up to 1,000 x 500 mm
Drills 3 faces in one pass
Channels, angles and box sections

All our machinery

05 / 07

Sampling platform

A platform at the emissions sampling ports, with a caged ladder.

06 / 07

Burners and lining

Installed by the licensor and the refractory contractor; the lining can be fitted at our works so the unit ships finished.

07 / 07

A kit of parts

Shell, louvres, legs and platform: every member numbered, match-marked and packed in erection sequence.

Why Allmarc

Experience you can trust.

We fabricate to your drawings and prove the fit in our own bay before anything ships. Open any line for the detail.

Talk to an engineer

Fabricated to your drawings

We build to the licensor’s design.
We do not compete with the people who send us work.

Proven before it ships

Trial-assembled in our bay.
Fit-up is settled in Ahmedabad, not on site.

Plate to packed container

Procurement, rolling, welding and NDT, coating, insulation.
Export packing designed for the journey.

Scale

Made in Unit 2, our precision plant for oil and gas; 4 plants at Kanbha, about 6,000 T a month from November 2026.
2,400 tonnes of flare equipment exported to date.