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NHN2020 Horizontal Knock-Out Drum Print E-mail


NHN2020 – Horizontal Knock-Out Drum

Allards International Limited have undertaken the mechanical design; engineering; expediting; procurement; fabrication and testing of the Horizontal Knock-Out Drum – Pressure vessel.  This pressure vessel has been designed for operation at Nynäshamn refinery in Sweden.

Allards International completed the mechanical design followed by procurement, fabrication and surface treatment of the pressure vessel. This was supplied fully painted ready for insulation to be applied on site. The company delivered the completed package to Nynäshamn.  The final weight of Knock-Out Drum was 14,000 kg.


• Scope of work: Horizontal Knock-Out Drum
• Materials: Carbon Steel partly Internally Clad with 904L
• Design pressure bar(g): FV/4.0
• Design temperature min/max (C): -20/399
• Design code and regulations: EN13445 and PED 97/23/EC

Key Data

ClientGBA Flare Systems
ContractorAllards International Ltd
Project locationNynäshamn refinery, Sweden
Date (year)2009
ServicesDesign; Fabrication; Inspection
TechnologiesHorizontal Knock-Out Drum