ДСТУ EN 14276-1:2022 Обладнання, що працює під тиском для холодильних систем і теплових насосів. Частина 1. Посудини. Загальні вимоги (EN 14276-1:2020, IDT)



ДСТУ EN 14276-1:2022
(EN 14276-1:2020, IDT)

Обладнання, що працює під тиском для холодильних систем
 і теплових насосів. Частина 1. Посудини. Загальні вимоги

 
   
 
 
     
Не є офіційним виданням.
Офіційне видання розповсюджує національний орган стандартизації
(ДП «УкрНДНЦ» http://uas.gov.ua)

Contents

European foreword

Introduction

1 Scope

2 Normative references

3 Terms and definitions

3.1 Terms and definitions

3.2 Symbols, descriptions and units

4 Materials

4.1 General

4.2 Requirements for materials to be used for pressurized parts

4.3 Requirements for materials

4.3.1 General

4.3.2 Cladding

4.3.3 Special considerations

4.4 Requirements for prevention of brittle fracture

4.4.1 General

4.4.2 Material requirements

4.5 Material documentation

4.6 Materials for non-pressure retaining parts

5 Pressure vessel classification

5.1 Category of vessel

5.2 Fluid classification

6 Design

6.1 General

6.2 Corrosion and corrosion protection

6.2.1 General

6.2.2 Internal corrosion

6.2.3 External corrosion

6.2.4 Corrosion allowance information

6.3 Stress corrosion cracking

6.4 Loading

6.5 Maximum allowable pressure PS

6.6 Design pressure Pd

6.7 Calculation pressure P or Pc

6.8 Design temperature td

6.9 Minimum material temperature

6.10 Calculation temperature tc

6.10.1 General

6.10.2 Vessel without heater

6.10.3 Vessel with heater

6.11 Joint coefficient

6.12 Design stress

6.13 Access and inspection openings, venting and draining provisions, filling and discharge provisions and handling devices

6.13.1 Non corrosive fluids

6.13.2 Corrosive fluids

6.13.3 Venting and draining provisions

6.13.4 Filling and discharge provision

6.13.5 Handling devices

6.14 Methods for design

6.14.1 General

6.14.2 Design by formulas (DBF)

6.14.3 Joint design

7 Manufacturing

7.1 General

7.2 Material traceability

7.3 Manufacturing tolerances

7.4 Permanent joints

7.4.1 General

7.4.2 Permanent joint and operator qualification

7.4.3 Permanent joint operations and traceability

7.4.4 Welding

7.4.5 Brazing

7.4.6 Permanent joints by deformation

7.4.7 Non-permanent joints

7.5 Forming of pressure parts

7.5.1 General

7.5.2 Deep drawing

7.6 Post weld heat treatment

7.7 Internal cleanness

7.8 Repairs/Reworks

7.9 Finishing operations

8 Testing and inspection

8.1 Performance of inspection and testing

8.2 Design documentation, review and approval

8.2.1 General

8.2.2 Design documentation

8.2.3 Design examination and design approval

8.2.4 Design documentation change

8.3 Type examination

8.4 Calibration

8.5 Material

8.6 Manufacturing

8.7 Non-destructive and destructive testing of welded joints

8.8 Brazed joints

8.9 Subcontracted elements

8.10 Final inspection

8.10.1 General

8.10.2 Visual examination

8.10.3 Examination of documentation

8.10.4 Pressure test

8.10.5 Leak test

8.11 Marking

8.12 Documentation

8.12.1 General

8.12.2 Manufacturer's instruction

8.12.3 Technical documentation for user

8.12.4 Records

Annex A (normative) Alternative requirements for prevention of brittle fracture: Method according to temperature stress cases

A.1 General

A.2 Temperature stress cases

A.3 Determination of lowest application temperatures for stress cases min t0 75, min t0 50 and min t0 25

A.4 Welding conditions

A.4.1 Welded connections

A.4.2 Heat treatment after welding

A.5 Proof of notch impact energy

Annex B (normative) Specification and approval of brazing procedures

B.1 Introduction

B.2 General

B.2.1 Responsibility

B.2.2 Specification of brazing procedures

B.2.3 Technical content of BPS

B.3 Test piece

B.4 Examination and testing

B.4.1 General

B.4.2 Visual examination

B.4.3 Tensile test

B.4.4 Bend test

B.4.5 Peel test

B.4.6 Metallographic examination

B.5 Range of approval

B.5.1 General

B.5.2 Related to the manufacturer

B.5.3 Related to the material

B.5.3.1 Parent metal

B.5.3.2 Thickness

B.5.4 Range of approval

B.5.4.1 General

B.5.4.2 Angle of branch connection

B.5.4.3 Brazing process

B.5.4.4 Flow position

B.5.4.5 Joint design

B.5.4.6 Filler material

B.5.4.7 Brazing temperature

B.5.4.8 Brazing flux

B.5.4.9 Fuel gas, atmosphere, nature of flame or type of energy

B.5.4.10 Post braze heat treatment

B.6 Brazing Procedure Approval Record (BPAR)

Annex C (normative) Pressure testing

C.1 Pressure test

C.1.1 General

C.1.2 Basic requirements

C.1.2.1 Pressure vessels

C.1.2.2 Accessories

C.1.2.3 Safety

C.1.2.4 Hydraulic test

C.1.2.5 Pneumatic test

C.1.3 Pressure test

C.1.3.1 Value of test pressure

C.1.3.2 Specific value of test pressure for compressor housing

C.1.3.3 Temperature requirement

C.1.3.4 Test procedure

C.1.3.5 Pass fail criteria

C.1.3.6 Requirements for pressure gauges

C.1.4 Final test report

C.2 Acoustic emission examination

Annex D (normative) Relations between the different pressures

Annex E (normative) Experimental design methods

E.1 Introduction

E.1.1 General

E.1.2 Methods

E.1.3 Documentation

E.1.4 Duplicate or similar parts

E.1.4.1 General

E.1.4.2 Duplicate parts

E.1.4.3 Geometrically similar part

E.1.5 Examination of the components or the vessel

E.1.6 Application of pressure

E.1.7 Material properties

E.2 Strain gauge test method

E.2.1 General

E.2.2 Procedure

E.3 Burst test

E.3.1 General

E.3.2 Procedure

E.3.3 Burst pressure

E.4 Housings of hermetic compressors of testing group 2b and vessels of testing group 2b

E.4.1 General

E.4.2 Burst test method for housings of vessels

E.4.3 Burst test method for housings of compressor

E.4.4 Combined burst test / fatigue test method for housings of compressor

E.4.4.1 General and burst tests

E.4.4.2 Additional fatigue test

Annex F (normative) Material characteristics for design

Annex G (informative) Component classification in the sense of the Pressure Equipment Directive (PED)

Annex H (informative) Selection of category

H.1 General

H.2 Definition of category for vessels for refrigerating pressure vessel

Annex I (normative) Grouping system for materials (extracted from CEN ISO/TR 15608)

I.1 Grouping system for steels

I.2 Grouping system for aluminium and aluminium alloys

I.3 Grouping system for copper and copper alloys

Annex J (informative) DN System

Annex K (normative) Specification and approval of expansion procedures and operators

K.1 General

K.1.1 General rules

K.1.2 Responsibility

K.1.3 Specification of expansion procedures

K.1.4 Technical content of EPS

K.2 Test piece

K.3 Examination and testing

K.3.1 General

K.3.2 Visual examination

K.3.3 Dimensional verification

K.3.4 Tests

K.4 Range of approval

K.4.1 General

K.4.2 Related to the manufacturer

K.4.3 Related to the material

K.4.4 Tube dimensions

K.4.5 Expansion factor

K.4.6 Expansion process

K.4.7 Joint design

K.4.8 Tool

K.5 Expansion Procedure Approval Record (EPAR)

K.6 Expansion operator approval

K.6.1 General

K.6.2 Validity range of expansion operator qualification

K.6.3 Qualification tests

K.6.3.1 General

K.6.3.2 Test piece

K.6.3.3 Assessment of the test piece

K.6.4 Examination and testing

K.6.5 Period of validity

K.6.5.1 Initial approval

K.6.5.2 Prolongation

K.6.6 Certification

Annex ZA (informative) Relationship between this European Standard and the essential requirements of Directive 2014/68/EU (Pressure equipment Directive) aimed to be covered

Bibliography