In , a huge explosion ripped apart a chemical plant in to confirm that the disaster at the Nypro plant at Flixborough was the result of. Failure Knowledge Database / Selected Cases. 1. Disaster of Chemical Plant at Flixborough. June 1st. , Flixborough UK. TAKEGAWA. Flixborough chemical plant explosion marked with service The disaster at Nypro chemical plant, near Scunthorpe, Lincolnshire, left

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The inch bypass was therefore clearly not what would have been produced or accepted by a more considered process, but controversy developed and became acrimonious as to dusaster its failure was the initiating fault in the disaster the inch hypothesis, argued by the plant designers DSM and the plant constructors; and favoured by the court’s technical advisers [3]or had been triggered by an external explosion resulting from a previous failure of the 8-inch line argued by experts retained by Nypro and their insurers [3].

Flixborough Disaster anniversary: New pictures come to light after 43 years

This article needs additional citations for verification. The management of major hazard installations must show that it possessed and used a selection of appropriate hazard recognition techniques, [S] had a proper system for audit of critical safety features, and used independent assessment where appropriate.

No calculations were done to ascertain whether the bellows or pipe would withstand these strains; no reference was made to the relevant British Standard, or any other accepted standard; no reference was made to the designer’s guide issued by the manufacturers of the bellows; no drawing of the pipe was made, other than in chalk on the workshop floor; no pressure testing either of the pipe or the complete assembly was made before it was fitted.

Inaugural lecture given on 22 February ” PDF.

Nor did anyone appreciate that the hydraulic thrust on the bellows some 38 tonnes at working pressure would tend to make the pipe buckle at the mitre joints. A memorial to those who died was erected in front of offices at the rebuilt site in Fires continued on-site for more than ten days. We believe that the best practices must be followed by all companies and that we have reached a state of technological development where it is not sufficient in areas of high risk for employers merely to demonstrate to themselves that all is well.


The occupants of the works laboratory had seen the release and evacuated the building before the release ignited; most survived. Critics of fliborough inquiry report therefore found it hard to accept its characterisation of the plant as ‘well-designed’.

Thu 5 Jun at 5: May Disasted how and when to remove this template message. Together with the passage of the Health and Safety at Work Act in the same year it led to and is often quoted in justification of a more systematic approach to process safety in UK process industries, and — in conjunction with the Seveso disaster and the consequent EU ‘Seveso directives’ — to explicit UK government regulation of disasted processing or storing large inventories of hazardous materials, currently by the Control of Major Accident Hazards Regulations COMAH.

Hundreds of evacuees were accommodated at North Lindsey College and other centres were also brought into use. We used to have one ship alongside and one or two waiting in the Humber to come up the Trent on the flixboroufh. Retrieved from ” https: Health and Safety Executive. We hired an aircraft from Biggin Hill for aerial photos and hit the phones.

Flixborough chemical plant explosion marked with service – BBC News

Places Changes planned at Gala Bingo hall in Scunthorpe. No drawing of the proposed modification was produced.

No-one appreciated that the pressurised assembly would be subject to a turning moment imposing shear forces on the bellows for which they are not designed.

In its first report [28] issued as a basis for consultation and comment in Marchthe ACMH noted that hazard could not be quantified in the abstract, and that a precise definition of ‘major hazard’ was therefore impossible.

The Flixborough disaster was an explosion at a chemical plant close to the village of FlixboroughNorth LincolnshireEngland on Saturday, 1 June Similarly the level of authority for technical approval for any plant modification must also be clearly defined. Some two months before the disaster, a crack was found in one of the reactors. Off-site there were no fatalities, but 50 injuries were reported and about 2, properties damaged. HSE aims to reduce work-related death, injury and ill health.

The report also commented on matters to be covered by the Advisory Committee on Major Hazards.


Flixborough 1974 chemical plant explosion marked with service

However, [12] gives a graphical presentation of the raw data overpressure inferred from damage vs distance from explosion source for Flixborough Fig 3. Lees’ Loss Prevention in the Process Industry 3rd edition.

Education Class Act contest fast-tracked to the final as 16 acts prepare to perform. The modification and its supporting safety assessment then had to be approved in writing by the plant manager and engineer. You can visit our cookie privacy page for more information.

Neither when they were first built, nor now that they are in operation, has any local or government agency exercised effective control over their safety. Ralph King suggested that a reaction between water which had settled in one of the reactors and the hot cyclohexane above it caused a massive rise in pressure that blew apart the piping.

The debate and argument continue to this day e. The inquiry identified difficulties at various stages of the accident development in the 8-inch hypothesis, their cumulative effect being considered to be such that the report concluded that overall the inch hypothesis involving ‘a single event of low probability’ was more credible than the 8-inch hypothesis depending upon ‘a succession of events, most of which are improbable’.

But just over six months later the hefty memorial, first positioned outside the new Nypro headquarters and then moved inwas gone — taken in an act of theft which caused further shock to the community.

Images of the disaster were soon shown on television, filmed by BBC and Yorkshire Television filmstock news crews who had been covering the Appleby-Frodingham Gala in Scunthorpe that afternoon. At a working level the offset was accommodated by a dog-leg in the bypass assembly; a section sloping downwards inserted between and joined with by mitre welds two horizontal lengths of inch pipe abutting the existing inch stubs.

There are now probably more than a dozen British petrochemical plants with a similar devastation-potential to the Nypro works at Flixborough.