Pressure Systems Safety Regulations (PSSR Regulations)

Let Maziak help you take the pressure out of Pressure Systems Regulations    

As a competent examiner, Maziak is qualified to complete your pressure system’s Written Scheme and legal inspections.  We are committed to BCAS best practice and can maintain your pressure system for maximum efficiency, optimal uptime and HSE compliance.

Maziak Customer Examples

  • A division of a global packaging manufacturer 
    ‚ÄčThe WSE included 40 vessels from 20 to 5000 litres
    Maziak were competent and certified to cover the whole production system and annual inspections
  • A world leader in open learning
    9 separate WSEs including 14 compressors across 20 buildings
    Maziak provided schematic drawings of all the compressed air pipework systems for ease of maintenance
  • Automotive interiors manufacturer
    New rental package including WSE
    Maziak as the ‘owner’ have taken the responsibility for the complete WSE and inspections giving peace of mind and reducing cost



What are the Pressure Regulations?

The PSSR 2000 are duties and regulations that directly correspond to the use of pressure systems in relation to the potential risks of health and safety. The objective of the regulation is to prevent pressure system failures as this could lead to serious injury through hazards that were not compliant. Maziak provide the service to ensure your pressure system is completely compliant with this regulation. 

What is a Written Scheme of Examination (WSE)?       

A WSE is a legal document that contains information about selected items of plant or equipment which form a pressure system, operate under pressure and contain a ‘relevant fluid’.  The WSE is required prior to the use of the Pressure System.  This is legislated by the UK Pressure System Safety Regulations (PSSR) regulation 8.1.  It specifies items for examination, frequency for examination and who can complete the examination.
“The user of an installed system and owner of a mobile system shall not operate the system or allow it to be operated unless it has a WSE for the periodic examination, by a competent person.”

Items for examination     

A WSE specifies items for examination and their frequency.  The scheme also specifies how the items are to be examined and any safety measures that may be required in this process.  This will include items such as: pressure vessels over 250 bar/litre capacity, safety valves, pressure switches, over temperature switches, gauges and pipework.  All defects will be reported and rectified.

Frequency for examination        

The WSE must remain relevant to the Pressure System it relates to, and therefore requires periodic inspections. Frequency of these may vary depending on the “competent person” Risk Assessments.

Competent Examiner      

The examiner or competent person must carry out careful and critical scrutiny of the pressure system to establish the “Safe Operating Limits” and therefore its safety.  The examiner will report after examinations the actual condition of the system and most critically its safety components and settings.  They may then recommend changes be made to either the system operating limits or the frequency of examinations.  Competency is defined by the HSE as ‘the combination of relevant training, skills, experience and knowledge that a person has and their ability to apply them’.

Consequences for non-compliance     

WSE and Pressure System inspections are a legal requirement under Health and Safety law and non-compliance would expose the owner to potential fines and prosecution by the HSE.  The whole purpose of this legislation is to ensure the safety of machinery in use and its operators.  Periodic examination is vital to avoid potential workplace accidents which can even be deadly.

For peace of mind and compliance call Maziak now on 01933 222000 or email at for more information.  

Maziak are qualified to provide all the services required by the Pressure Systems Safety Regulations:

  • Written scheme survey and document preparation

  • Schematic drawings

  • Statutory pressure vessel inspection and certification

  • Pressure vessel testing and certification

  • Safety device testing and calibration

  • Gauge testing and calibration

Ready for an unbeatable experience? Contact us today
01933 222 000
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