APEK - GN3788 Draft

GN3788 Draft

Details: Category: Guidance Notes

APEK - 3788.
GUIDANCE NOTE

PRESSURE EQUIPMENT TYPES AND TAXONOMY

APEK GN ???
Rev 0
Issued: 21-7-2019

Developed for: ACA, AICIP, AIE, AIES, AINDT, APIA, CAAA, Eng Aust, Met Aust, NATA, Stds Aust, Weld Au, & all

1 Scope Gives "a systematic classification of pressure equipment (PE) in generic terms based on factors common to several PE" - ie PE taxonomy (Ref 1)

2 Purpose To help the Pressure Industry community, the revision of AS/NZS 3788 and communication through use better understanding of PE types.

3 Basis Latest Australian, New Zealand and global practice and References 1 -7.

4 References

ISO 14224-2016 "Petroleum and natural gas industries -Collection and exchange of reliability and maintenance data for equipment"
AS 1228-2016. PE - Boilers
AS 4942-2001 PE - Glossary of terms
AS 2593-2004 Boiler management system
AS 4041-2006 Pressure Piping
ATDGC - 201? Australian Transport of Dangerous Goods Code
WTIA Report-"Improvement of Australian PE industry"- 27 Oct 2010

Notes

In this Note, “plant” has the same meaning as in WHS Regs, and “pressure plant” means one or more items or combinations of “pressure equipment”, “pressure machines” and “pressure systems”.
“Associated with equipment”
AS/NZS 1200 and WHS Regulations limit Group 1 PE to Boilers, Pressure Vessels and Pressure Piping. NZ Regs also include Steam Engine and Steam and Gas Turbine. Vic OSH&S Regs – 2007 also for licensing of personnel define PE as boilers, turbines and reciprocating steam engines.
Group II PE is often regarded as PE because of high pressure. Both transport fluid under pressure.
Group III PE is often not regarded as PE because of low pressure or size e.g. consumer items covered by ADG Code, and tanks which are open or slightly pressurised at the top.
Machines are usually not subject to pressure regulations because of excellent safety record due to robust construction, low operating stress to limit distortion, and competent users. Hazards can be very high but risk is very low. They are not covered by AS/NZS 1200.
UN Transport of Dangerous Goods (Chapter 1.2) and ATDGC: “Pressure receptacles is a collective term that includes cylinders, “tubes”, pressure drums, closed cryogenic receptacles and bundles of cylinders”. Other pressure containers include aerosol dispenser and gas or fuel cell cartridges.

FIGURE 1 PRESSURE PLANT AND EQUIPMENT

Notes

Numbers in brackets [..] are Clause numbers in Reference 2
The definition of "boiler" is given in Ref 2 and AS/NZS 1200 and WHS Regulations
"Boiler" refers to both "boiler proper" i.e. main pressure retaining parts and accessories, and to "boiler plant" which includes "associated equipment".
"Associated equipment" is equipment essential for PE operation eg fuel, water, protection and management systems.
ASME BPVC Section 1 Boilers defines reheaters and isolated and non-integral superheaters as fire pressure vessels, and require them to built Section 1. In Australia they are treated as parts of boilers.
WHS Regulations use "fired process heater" to clarify the difference from "boiler". AU industry treat "process" flexibly and includes fired heater for heat transfer oil for use in a process.
In AU & NZ, temperature T >100C; in EU > 110C; & in USA > 120C.
Electric boilers can be electrode, element (immersed or external) or microwave.
Australian Miniature Boiler Safety Committee AMBSC Code Parts 1 - 4

FIGURE 2 BOILERS

Note

See Note 6 Figure 2
To be added

FIGURE 3 PRESSURE VESSELS

Notes

1 Sub types are the same as for pressure vessels – see Figure 3 except Form can be:

Cylindrical or tubular of various cross-section; Flexible; Articulated; Spiral; Small bore (d <0.1D or <DN 25);
Capillary (< 1mm); Jacketed or lined; Header; Branch; Duct; Flue; Hose; Chute

FIGURE 4 PRESSURE PIPING