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Does my pressure system need a written scheme?

Equipment and work · Question 1 of 3

What pressure equipment is present?

Choose equipment that belongs to the system, including vessels, associated pipework and protective devices where relevant.

Business or industry

What pressure equipment is present?

Compressed-air systemCompressor, receiver, dryer, pipework and protective devicesSteam boiler or steam systemSteam at any pressure can be a relevant fluid under PSSRRefrigeration or HVAC pressure plantSystems containing compressed or liquefied refrigerantAutoclave or steriliserA pressurised vessel used in healthcare, laboratory or manufacturing workPressurised hot-water systemEspecially water kept above 110°CIndustrial process vesselReactor, accumulator, heat exchanger or another pressure vesselCommercial coffee boilerAn espresso or beverage machine producing steamCompressed or liquefied gas systemGas vessel, associated pipework and protective devicesOther or uncertain pressure systemThe system stores pressure but its classification is unclear

Choose an industry and at least one equipment or work type.

More help with Pressure systems / PSSR

Use these when you need more detail before appointing someone. This questionnaire is decision support, not a professional assessment or a legal determination.

Buying toolkit and quote checklist →Supplier evidence directory →

Guides, technical explanations and references

Duty and technical sources

Before qualifying pressure equipment is used, a suitable written scheme of examination must be in place and the covered parts must be examined by a competent person in accordance with it.

HSE PSSR overview — Definitions, relevant fluids and competent-person role
HSE written-scheme guide — How to establish and review a suitable WSE
PSSR regulation 8 — Legal requirement for a written scheme

Published price evidence

Lloyd & Whyte — Publishes £255 plus VAT and an administration fee for its specified pressure-vessel inspection service.
Bridge Coffee Roasters — Publishes £445 per coffee machine including its stated inspection, certification, records and standard parts.
United Coffee Company — Publishes a single-machine pressure-vessel test from £318.75 plus VAT.

Duty sequence

The pressure system comes before the paperwork

First define the real safety-critical system. The written scheme then controls what is examined, how and when.

Check against HSE INDG178

01Relevant fluidSteam, compressed gas or another in-scope fluid
02System boundaryVessels, associated pipework and connected plant
03Protective devicesSafety valves and devices protecting against danger
04Written schemeParts, examination nature, preparation and intervals
05ExaminationCompetent-person work, report and danger actions

Evidence a competent appointment should leave visible

Safe operating limits
Equipment and device inventory
Suitable certified scheme
Examination report and actions