AS NZS 3788 PDF

Guidance is included for the inspection of ancillary equipment such as structures. This Standard also specifies the requirements for the initial inspection after installation and prior to commissioning. The inspection flow diagram see Figure 1. This Standard provides information to facilitate grounds for agreement between interested parties, and the establishment of uniform minimum requirements for in-service inspections, including inspection intervals and procedures, to assist in assuring safe and economic operation.

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Pressure Equipment Q. What is pressure equipment? Examples include but are not limited to air receivers, air compressors, autoclaves, boilers, pressurised storage tanks, fired heaters and heritage boilers.

What is a pressure vessel? A pressure vessel is pressure equipment that is subject to internal or external pressure and includes interconnected parts and components, valves, gauges and other fittings up to the first point of connection to connecting piping, fired heaters and gas cylinders, but does not include any boiler or pressure piping. All pressure vessels are assessed according to AS and assigned a hazard level based on fluid contents, design parameters and the working environment.

These hazard levels indicate the potential for the vessel to cause harm to persons, property and the environment. The Pressure Vessel Register is a document that identifies and describes each pressure vessel, inclusive of identification and model numbers. The Curtin University Pressure Vessel Register requires that the owner inputs key information so that the hazard level of the vessel is accurately assessed.

The final sections of the register require information in relation to ongoing inspection and maintenance of the item. What is a Pressure Equipment Information File? This file is a central repository for all documents relating to the item such as registration and inspection certificates and maintenance and inspection records.

This file may be kept in hard copy, electronic or a mixture of both. Do serially produced pressure vessel designs need to be registered with Worksafe WA if they are being used exactly as designed? Serially produced pressure vessels are covered by AS, and their design needs to comply with the definition, scope and other requirements of this standard. Serially produced pressure vessels that strictly comply with AS are not required to be registered with Worksafe WA, however it is essential for these vessels to be operated, maintained and inspected in a safe manner and in accordance with AS According to regulation 4.

The responsibility for registration of design rests with the manufacturer, importer or supplier of pressure equipment. Completed Form and documents listed in regulation 4. The design must be verified by an independent Engineer and shall fully comply with the requirements given in relevant standards listed in Schedule 4. AS, AS etc. Regulation 4. It is the responsibility of the employer, the main contractor, a self-employed person, a person having control of the workplace or the person having the control of access to the workplace to register the pressure vessel or the boiler with WorkSafe.

Completed Form along with a signed statement from a Competent Person stating that the pressure vessel or the boiler has been inspected and it is safe to use shall be submitted to WorkSafe for registration of individual item of plant.

Form , Form and the regulations are available in the internet and access is via: www. Who are design verifiers for pressure vessels? A design verifier is person who has satisfactory knowledge, training and experience in design or verification of design of the particular or equivalent pressure equipment. How often should pressure vessels be inspected? Are there any other specific requirements in relation to the inspection and maintenance of pressure vessels? I have equipment or instrumentation that operates via a pump or similar system that creates a vacuum, e.

Are these required to be registered? All pumps or vacuum creating systems should be designed to AS or other relevant pressure piping standards so these are not required to be registered under the Regulations. Hazard levels of instrumentation as described above should be assessed against the Pressure Vessel Register to determine their hazard level and in most instances this will indicate that the item is hazard level E, so registration is not required as the rating is based on the criteria identified in Q3.

Where the outcome of this assessment results in hazard level A-D the relevant registrations are required.

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