Pressure Vessel Design Presentation. design aspects

Pressure Vessel Design Presentation

1. Hibernian Insurance
Engineering Services .
An Appreciation of the;
Simple Pressure Vessel Directive.
Pressure Equipment Directive.
Machinery Directive.

2. Legislation
Factories Act 1955
European Directives
Harmonised Standards
Irish Standards
Supporting Standards

3. Introduction
Simple Pressure Vessel Directive
87/404/EEC
Implementation: June 1992.
Essential Safety Requirements.
0.5 to 30 bar & PS.V not exceeding
10,000bar/litre.
Air or Nitrogen –Unfired.
Interpretation & Appreciation.

4. Introduction
European Pressure Equipment Directive
97/23/EC.
Implementation: 29/05/2002.
Essential Safety Requirements.
Pressure Vessels of 0.5 bar and greater.
Interpretation & Appreciation

5. Introduction
MachineryDirective
98/37/EC.
Implementation:01/01/1995
Machinery
Essential Safety Requirements.
Interpretation & Appreciation.

6. Pressure Equipment Directive
Scope.
Exclusions.
Notified Body.
Essential Safety Requirements.
General, Design, Manufacture,
Materials, Hazard Assessment.

7. Harmonized Standards.
Alternative Compliance.
Safeguard Clause.
CE marking and Declaration of Conformity.
Pressure Equipment Directive

8. Overview
Classification-Group 1 Dangerous fluids.
Group 2 All other fluids.
Category I, II, III, IV.
Equipment falls within a category depending on;
Whether it is;
Avessel, assembly, etc.
Liquid or a gas.
Maximum Allowable Pressure*Volume.
PS*V

9. Vessels sample chart.
I
II
III
IV
0.1
1000
V
PS
1000
200
1.0
PS.V=25 I
PS.V=50 II
PS.V=200 III
PS.V=1000 IV
0.5

10. Category.
I -does not require a Notified Body.
II-requires surveillance of final assessment.
III-requires EC Type examination and
surveillance of final assessment.
IV-requires type examination and verification of
each final item of pressure plant.

11. Category -Module.
Category Module
IV B+D,B+F,G,H1.
III B1+D,B1+F,B+E,B+C1,H.
II A1,D1,E1.
I A
0 Sound Engineering Practice.

12. Modules.
A-internal production control.
A1-as above with final monitoring.
B-EC Type examination.
B1-EC Design Examination.
C1-Monitoring of final assessment for B.
D -QA for production ,inspection & testing.
D1-as above and Notified Body assessment
of QA.

13. Modules cont:
E -QA Final inspection & testing of each
item of pressure plant & N.B approve
technical document for the Type.
E1 -as above but without Technical
Document approval on Type.
F-Product Verification.N.B examines
design, construction, calculations,
documentation and issue Certificate of
Conformity.

14. Modules Cont:
G -Unit Verification.N.B examines and
tests each item of pressure plant as per
standards. Issues Certificate of Conformity.
H -Full QA. N.B audits full QA procedures.
H1-As above with design examination and
testing by N.B.

15. Category -Module.
Category Module
IV B+D,B+F,G,H1.
III B1+D,B1+F,B+E,B+C1,H.
II A1,D1,E1.
I A
0 Sound Engineering Practice.
(no C.E mark)

16. In Service Issues.
What is the PS value.
Hydraulic Test values.
Repair Implications -major & minor.
Does C.E marking apply
Is a risk assessment required.
Second Hand pressure vessels
within / outside the Community.

17. Summary
What is Different -Then & now.
Implementation: 29/05/2002.
Appreciation of the P.E.D.
Implications and Responsibilities.
F.A. Questions.

18. HIBERNIAN INSURANCE
ENGINEERING SERVICES.