The Leading News & Information Service For The Facilities, Workplace & Built Environment Community

Warning for Norfolk Fire Extinguishers

14 August 2015 | Updated 01 January 1970
 

In its warning on the Norfolk range of large dry powder fire extinguishers, manufactured before 2009, the HSE states that they may be affected by moisture ingress at a threaded joint at the base of the unit, rendering the unit inoperable.

Unfortunately, the problem may not be identified during routine service inspections and the concern has come about from a recent fire on a chemical plant when three wheeled dry powder fire extinguishers, containing 45kg of Monnex dry powder, failed to discharge when activated.

This safety alert relates to dry powder units manufactured between 1970 and 2009. An identifying feature of these units is that the discharge hose is coupled at the base of the unit via a threaded metal elbow joint. The HSE is advising businesses and organisations to do the following:

  • Users should identify if their extinguishers are likely to be affected. If yes and the extinguisher has been left exposed to adverse conditions since its last extended service, the condition of the elbow joint at the base of the unit should be examined by a competent service engineer.
  • If you are unsure if your extinguishers are affected by this safety alert, consult Britannia Fire Ltd.
  • Service engineers should closely examine and if necessary, remove the elbow to confirm if there is evidence of water ingress to the discharge tube. If there is any doubt about moisture affecting the powder in the discharge tube, consider subjecting the extinguisher to an extended service, including full replacement of the dry powder.

 

The flexible discharge hose is normally removed during servicing however the elbow joint is not usually disturbed. It is believed that water ingress at this joint resulted in caking of the dry powder within the elbow joint. The caked powder may fall back from the discharge tube into the body of the extinguisher and so not seen during basic servicing. Upon activation of the extinguisher, the caked powder can block the discharge hose and render the unit inoperable.

If you are unsure if your units are affected by this safety alert, consult Britannia Fire Ltd.

Picture:    The Norfolk range of large dry powder fire extinguishers, manufactured before 2009, may have problems with water ingress.

Article written by Mike Gannon | Published 14 August 2015

Share



Related Articles

BOHS Highlights Link Between Workplace Health and Sustainability Goals

Worker health protection standards directly relate to sustainable development goals, according to The British Occupational Hygiene Society and the Chartered Society for...

 Read Full Article
HSE Campaigns to Alleviate Worker Injuries

Experts at the Health and Safety Executive (HSE) are warning construction workers are picking up injuries and conditions that can stop them working and leave them...

 Read Full Article
Compliance Fines after Electrician’s Injuries at B&M Warehouse

B&M and Daker have been fined after an electrician suffered serious burns to 15 per cent of his body when he was caught in an explosion at a warehouse in...

 Read Full Article
HSE Publishes Annual Workplace Fatality Figures

HSE reports show that 123 workers died in work-related accidents from April 2021 to March 2022. 2,544 deaths in 2020 were due to Mesothelioma, cancer that can be...

 Read Full Article
Protecting Workers and Your Business at Heights

A building maintenance company has been fined £20,000 for their lapse in competent management of work carried out on a roof and gutters in Wolverhampton, resulting...

 Read Full Article
Mental Health Awareness Week – Combatting Loneliness 

The Mental Health Foundation started Mental Health Awareness Week 21 years ago, and it has grown to become one of the biggest awareness weeks across the UK and...

 Read Full Article
World Day for Safety and Health at Work – The Cost of Construction Injuries

Research analysis demonstrates the impact of accidents in the construction industry and how workers and workplaces are being affected. This World Day for Safety and...

 Read Full Article
HSE Launches Free Workplace Stress Measurement Tool

The Health and Safety Executive’s new Stress Indicator Tool 2.0 allows employees to anonymously report work-related stress. Employers can therefore use this data...

 Read Full Article
HSE Advises on COVID and Ventilation in Offices

The advice includes how to ventilate rooms whilst keeping them warm, monitoring indoor air quality, and safely ventilating vehicles.   What are the Legal...

 Read Full Article
Back Care Awareness Week – Risks to Home Workers

Most of us have probably been guilty of working in unusual places over the last eighteen months, but is your sofa desk contributing to your back pain? In 2019-20...

 Read Full Article