Search Legislation

The Pressure Equipment (Safety) Regulations 2016

 Help about what version

What Version

 Help about advanced features

Advanced Features

 Help about opening options

Opening OptionsExpand opening options

Changes over time for: Paragraph 31

 Help about opening options

Changes to legislation:

There are currently no known outstanding effects for the The Pressure Equipment (Safety) Regulations 2016, Paragraph 31. Help about Changes to Legislation

This section has no associated Explanatory Memorandum

31.—(1) Materials used for the manufacture of pressure equipment must be suitable for such application during the scheduled lifetime unless replacement is foreseen.E+W+S

(2) Welding consumables and other joining materials need only comply with the relevant requirements of subparagraphs (3), (4)(a) and (5), in an appropriate way, both individually and in a joined structure.

(3) Materials for pressurised parts must—

(a)have appropriate properties for all operating conditions which are reasonably foreseeable and for all test conditions, and in particular—

(i)they must be sufficiently ductile and tough;

(ii)where appropriate, the characteristics of the materials must comply with the requirements of paragraph 41;

(iii)due care must be exercised in particular in selecting materials in order to prevent brittle-type fracture where necessary;

(iv)where for specific reasons brittle material has to be used, appropriate measures must be taken;

(b)be sufficiently chemically resistant to the fluid contained in the pressure equipment, and in particular the chemical and physical properties necessary for operational safety must not be significantly affected within the scheduled lifetime of the equipment;

(c)not be significantly affected by ageing;

(d)be suitable for the intended processing procedures;

(e)be selected in order to avoid significant undesirable effects when the various materials are put together.

(4) The pressure equipment manufacturer must—

(a)define in an appropriate manner the values necessary for the design calculations referred to in paragraph 5 and the essential characteristics of the materials and their treatment referred to in subparagraph (3);

(b)provide in the technical documentation elements relating to compliance with the materials specifications relating to materials contained in these Regulations in one of the following forms—

(i)by using materials which comply with [F1designated] standards;

F2(ii). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(iii)by a particular material appraisal.

(5) For pressure equipment in categories III and IV, a specific assessment of the particular material appraisal must be performed by [F3an approved body or a notified body] .

(6) The equipment manufacturer must take appropriate measures to ensure that the material used conforms with the required specification, and in particular, documentation prepared by the material manufacturer affirming compliance with a specification must be obtained for all materials.

(7) For the main pressure-bearing parts of equipment in categories II, III and IV, the documentation referred to in sub-paragraph (6) must take the form of a certificate of specific product control.

[F4(8) Where a material manufacturer has an appropriate quality-assurance system, certified by a competent body established [F5in the United Kingdom or in the territory of an EEA state] and having undergone a specific assessment for materials, certificates issued by the manufacturer are presumed to certify conformity with the relevant requirements of this paragraph.]

[F4(8) Certificates issued by a material manufacturer are presumed to certify conformity with the relevant requirements of this paragraph where the manufacturer has an appropriate quality-assurance system that—

(a)is certified by a competent body established in—

(i)the United Kingdom;

(ii)the territory of an EEA state; or

(iii)the territory of a party to the CPTPP; and

(b)has undergone a specific assessment for materials.]

Extent Information

E1This version of this provision extends to England and Wales and Scotland only; a separate version has been created for Northern Ireland only

Textual Amendments

F3Words in Sch. 2 para. 31(5) substituted (E.W.S.) (22.4.2024) by The Pressure Equipment (Safety) (Amendment) Regulations 2024 (S.I. 2024/490), regs. 1(2), 2(4)(b)

F4Sch. 2 para. 31(8) substituted (E.W.S.) (coming into force in accordance with reg. 1(2) of the amending S.I.) by The Treatment of Conformity Assessment Bodies (Comprehensive and Progressive Agreement for Trans-Pacific Partnership) Regulations 2024 (S.I. 2024/504), reg. 10(3)

F5Words in Sch. 2 para. 31(8) substituted (E.W.S.) (22.4.2024) by The Pressure Equipment (Safety) (Amendment) Regulations 2024 (S.I. 2024/490), regs. 1(2), 2(4)(c)

[F431.(1) Materials used for the manufacture of pressure equipment must be suitable for such application during the scheduled lifetime unless replacement is foreseen.N.I.

(2) Welding consumables and other joining materials need only comply with the relevant requirements of subparagraphs (3), (4)(a) and (5), in an appropriate way, both individually and in a joined structure.

(3) Materials for pressurised parts must—

(a)have appropriate properties for all operating conditions which are reasonably foreseeable and for all test conditions, and in particular—

(i)they must be sufficiently ductile and tough;

(ii)where appropriate, the characteristics of the materials must comply with the requirements of paragraph 41;

(iii)due care must be exercised in particular in selecting materials in order to prevent brittle-type fracture where necessary;

(iv)where for specific reasons brittle material has to be used, appropriate measures must be taken;

(b)be sufficiently chemically resistant to the fluid contained in the pressure equipment, and in particular the chemical and physical properties necessary for operational safety must not be significantly affected within the scheduled lifetime of the equipment;

(c)not be significantly affected by ageing;

(d)be suitable for the intended processing procedures;

(e)be selected in order to avoid significant undesirable effects when the various materials are put together.

(4) The pressure equipment manufacturer must—

(a)define in an appropriate manner the values necessary for the design calculations referred to in paragraph 5 and the essential characteristics of the materials and their treatment referred to in subparagraph (3);

(b)provide in the technical documentation elements relating to compliance with the materials specifications relating to materials contained in these Regulations in one of the following forms—

(i)by using materials which comply with harmonised standards;

(ii)by using materials covered by a European approval for materials in accordance with regulation 50;

(iii)by a particular material appraisal.

(5) For pressure equipment in categories III and IV, a specific assessment of the particular material appraisal must be performed by the notified body in charge of conformity assessment procedures for the pressure equipment.

(6) The equipment manufacturer must take appropriate measures to ensure that the material used conforms with the required specification, and in particular, documentation prepared by the material manufacturer affirming compliance with a specification must be obtained for all materials.

(7) For the main pressure-bearing parts of equipment in categories II, III and IV, the documentation referred to in sub-paragraph (6) must take the form of a certificate of specific product control.

(8) Where a material manufacturer has an appropriate quality-assurance system, certified by a competent body established [F6in a relevant state] and having undergone a specific assessment for materials, certificates issued by the manufacturer are presumed to certify conformity with the relevant requirements of this paragraph.]

Extent Information

E2This version of this provision extends to Northern Ireland only; a separate version has been created for England and Wales and Scotland only

Textual Amendments

F4Sch. 2 para. 31(8) substituted (E.W.S.) (coming into force in accordance with reg. 1(2) of the amending S.I.) by The Treatment of Conformity Assessment Bodies (Comprehensive and Progressive Agreement for Trans-Pacific Partnership) Regulations 2024 (S.I. 2024/504), reg. 10(3)

Back to top

Options/Help

You have chosen to open The Whole Instrument

The Whole Instrument you have selected contains over 200 provisions and might take some time to download. You may also experience some issues with your browser, such as an alert box that a script is taking a long time to run.

Would you like to continue?

You have chosen to open The Whole Instrument as a PDF

The Whole Instrument you have selected contains over 200 provisions and might take some time to download.

Would you like to continue?

You have chosen to open the Whole Instrument

The Whole Instrument you have selected contains over 200 provisions and might take some time to download. You may also experience some issues with your browser, such as an alert box that a script is taking a long time to run.

Would you like to continue?

You have chosen to open Schedules only

The Schedules you have selected contains over 200 provisions and might take some time to download. You may also experience some issues with your browser, such as an alert box that a script is taking a long time to run.

Would you like to continue?