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Knock-Out Drums

Oil & gas · Flare systems

Flare Knock-Out Drums

Horizontal vessels with dished heads, a liquid boot and reinforced nozzles, fabricated alongside the flare package on their own skid.

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Allmarc 3D model · to scale

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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.

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A skid-mounted knock-out drum

The vessel and the skid it sits on, fabricated together so the package ships and sets as one piece.

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

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Shell and heads

A rolled shell with dished heads welded at the tangent line, to qualified procedures.

How is it possible at Allmarc?

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

Used here for: Shell and heads

Rolls plate up to 40 mm

All our machinery

Used here for: Shell and heads

Full-penetration welds on built-up sections

All our machinery

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A shell set into a shell

The boot is a second rolled shell set into the first: a large branch opening, fitted and welded to procedure.

How is it possible at Allmarc?

Used here for: A shell set into a shell

Qualified welders, including 6G

All our machinery

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Connections and access

Every nozzle a real penetration with a reinforcing pad and raised-face flange, and a bolted manway with its davit.

How is it possible at Allmarc?

HSG 12 kW fibre laser in the Allmarc works

Used here for: Connections and access

12 kW
Cuts up to 40 mm
2,500 x 8,000 mm bed

All our machinery

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The skid

Saddles, a channel skid with pull lugs and lifting lugs on the vessel: the structural work we already do every day.

How is it possible at Allmarc?

Kotec newRun10DX CNC beam drilling line in the Allmarc works

Used here for: The skid

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

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Every part, apart

Vessel, boot, nozzles, manway, saddles and skid.

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.