CoA “ABR Navy Technical Regulations Manual”, Commonwealth of Australia, Director of Technical Regulations – Navy, See ABR Volume 2 Section 5 Chapter 2 Annexes A&B for risk and engineering authority levels. Endorsement indicates that technical risk has been . 1. ASC Engineering Management Plan, and subsidiary processes. 2. Judgement of Significance (ABR). 3. Take 5. Key Behavioral Competencies Required.
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They do not overlap. A flexible conduit of circular cross section, and usually consisting of an inner element tubereinforcement element carcass and an outer element cover. The maximum sustained pressure acquired during an impulse cycle. The strength member of the hose containing fabric, cord or wire reinforcement. The criticality is used only to determine the expected service life cycle of rubber flexible hose assemblies iaw Table 1.
Testing and Replacement of Flexible Piping Devices
The Naval Technical Regulatory System. Hose assemblies found defective or due for life expiry shall be replaced at the first opportunity.
Periodic visual inspections shall be made of all installed flexible hose assemblies for signs of physical damage. A certificate from an accredited quality organisation, certifying the suitability of the hose for its intended use.
One sample of each new type of hose assembly is to be subjected to a qualifying hydrostatic pressure test of the complete assembly, including end fittings, of five times the maximum sbr working pressure or the hose abe proof pressure, whichever is higher apart from hyperbaric hoses.
Rubber expansion joints in normally unmanned spaces should be replaced at least every 6 years. This date may mark an event such as system hydrostatic test, date system filled with fluid, system start up, etc. Ensure that the pressure ratings of the hose end fittings and the anr are comparable. If a critical synthetic rubber hose is provided via the DMO supply chain without an identifiable cure date it may still be used provided it meets the General visual inspection Requirements.
It may be necessary to uncouple the hose and remove the sleeve to facilitate inspection of the hose.
Discover the magic of the Internet. In these instances, any planned maintenance inspection and testing that is normally applicable to that item should be conducted prior to the item being put into service and the baseline for the planned maintenance periodicity should be set at that date.
The periodicity of inspection should be at least quarterly, with special attention being given to the large diameter joints installed in the sea connections to and from main condensers.
Excluding hyperbaric hoses, there is no specific requirement for each device to have a separate test conducted prior to installation so long as its quality can be assured.
Ensure that the tube and cover are intact and contain no cuts, cracks or abrasions.
The service life is determined by the criticality of the system in which it is installed. In general, the dash size is the inside diameter of a hose expressed in 16th of an inch.
Evidence of fluid hammer or whipping as a result of peak pressure pulsations. A fitting connecting two sections of hose to form a 90o hose assembly. Hose In-service Inspections Page 10 of 16 Irrespective of the results obtained from any other inspection, the following conditions shall be cause for rejection of metal hoses: Further advice should be sought from CME or other DAR before using spare rubber hose assemblies whose origin and cure dates are unknown.
The maximum working pressure for which a hose is designed. When the hose is removed for scheduled maintenance testing the fire sleeve is to be removed and replaced with a new sleeve without dismantling the end fittings.
Testing and Replacement of Flexible Piping Devices
If no specific detail is provided, the hose identification should be conducted iaw paras b and c below. Working pressure – system.
Reviews of Navy’s Technical Regulation. Technical quality continual improvement.
Hose-Assembly Inspection Requirements The maximum pressure achieved at the beginning of an impulse pressure cycle. Sustainment Management in the Royal Australian Navy. For example, a hose manufactured in the 642 quarter ofdenoted as 2Q04 at repetitive intervals on the layline, has a shelf life that ends on the 30th September If a conflict exists or is deemed to exist between this directive and a planned maintenance requirement, it should be directed to CME for arbitration and amendment.
The RAN’s technical regulation system requires that evidence of safety be: A legible marking, parallel to the longitudinal axis of the hose, which identifies the abd as required by the applicable specification. Thermoplastic 64992 Rejection Protects the reinforcement carcass from abrasion and exposure to harmful chemicals and other conditions which can harm the carcass.
The process of vulcanising. The pressure which exists in a system or sub-system when performing its normal function in which a hose or hose assembly may be installed. Where it is not feasible to conduct a proof test and exigencies of service dictate that the hose be used, it shall be proof tested at the earliest opportunity.
When accepting hoses with shelf life over 4 years ships should consider the cost of condemning the hose for disposal against the reduction in service life. Above psig and below psig kPa. Rubber Hose Rejection Page 14 of 16