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This specification sheet establishes requirements for a high collapse pressure configuration filter element of a specific configuration with a minimum filtration ratio of 75 for particles larger than 7 µm when designed and tested in accordance with SAE J2321 and this specification sheet.

1. Scope. 1.1 This Recommended Practice defines a procedure, which will aid in assessing the contaminant sensitivity of hydraulic components. This procedure utilizes a very high level of contaminant that permits an accelerated test to determine the affects of contamination in a relatively short period. This recommended practice utilizes the contamination sensitivity test circuit and contaminants identified in SAE J2470. 1.2 This procedure does not establish contamination sensitivity requirements for any hydraulic component. The user of this procedure needs to be aware of the system contamination level that the component will operate in and select test contamination levels significantly higher that the operating level in order to assess the suitability of the component.

This Information Report provides a description of bleed-air pneumatic system elements and identifies parameters required to define the requirements for a detailed specification. Specific design requirements are dependent on the application and should be incorporated in a detailed specification.

The marine environment differs greatly from other environments in which hydraulics are used. This Recommended Practice provides hydraulic design considerations and criteria for the marine environment and is applicable to commercial vessels, military ships, and submersible vehicles. This document may be used for manned and un-manned vehicles.

This SAE Recommended Practice provides the designer with guidance for the selection of directional control valves for use in the hydraulic systems of surface ships and submersibles. This guidance includes use of standard valves and interfaces, minimum envelopes that should be reserved to permit interchangeability, environmental considerations, and general technical requirements.

This SAE Recommended Practice provides guidance for defining the requirements for evaluating hydraulic pumps and motors and for preparing detailed specifications for these components. The user can follow this document to set forth the pump and motor environmental and performance considerations, establish service life and reliability goals, and define specific evaluation tests for marine vehicle applications.

This Hydrospace Information Report (HIR) identifies the general environmental considerations for the design, development, evaluation, and testing of advanced surface craft, submersible vehicles, and other marine craft. This HIR provides criteria on the environmental limits within which marine vehicles, related components, and associated equipment should operate satisfactorily and reliably. This HIR is intended for use as a guide for the development of specific environmental requirements to be included in detailed specifications for marine vehicles and associated equipment. Specific requirements are in a state of continual change as our knowledge of the ocean environment increases. The ocean environment varies with location and time. Changes in the ocean environment can occur not only on a seasonal basis but also monthly, weekly, daily, and in some cases even hourly.

This SAE Recommended Practice identifies and examines the various parameters which must be considered in selecting hydraulic systems filters, their locations within the system and the dirt capacity of the filter elements. This document is generally applicable to all ship hydraulic systems but does not apply to personal or recreational watercraft.

Hydraulic systems are used on marine vehicles for steering, vehicle control, and utility services. System components that generate and transmit noise are of concern. This SAE Information Report (a) addresses noise requirements which may apply to the hydraulic systems of ships and submersibles, and (b) identifies noise sources and techniques which may be used to reduce system noise. Noise of power sources (e.g., electric motors) and end items (e.g., steering linkages) is beyond the scope of this document.

This SAE Recommended Practice provides the designer with guidance for the selection of directional control valves for use in the hydraulic systems of surface ships and submersibles. This guidance includes use of standard valves and interfaces, minimum envelopes that should be reserved to permit interchangeability, environmental considerations, and general technical requirements.

This SAE Recommended Practice identifies and examines the various parameters which must be considered in selecting hydraulic system filters, their locations within the system and the dirt capacity of the filter elements.

This HIR provides a description of bleed-air pneumatic system elements and identifies parameters required to define the requirements for a detailed specification. Specific design requirements are dependent on the application and should be incorporated in a detailed specification.

This specification sheet establishes requirements for a low collapse pressure configuration filter element of a specific configuration with a minimum filtration ratio of 75 for particles larger than ? μm when designed and tested in accordance with SAE J2321 and this specification sheet. Note: The efficiency and dirt capacity have not yet been determined..

This SAE Standard covers disposable hydraulic and lube oil filter elements. This document is a general performance specification for filter elements and identifies performance criteria and test methods. Associated specification sheets (SAE J2321-1, J2321-2, and J2321-3, etc.) define configuration and performance requirements for specific elements.

This document establishes the requirements for technical content and format of hydraulic system diagrams. This document does not establish configuration requirements, material, or performance requirements for any system or component identified herein. The purpose of this document is to specify the minimum technical content of marine and submergence vehicle hydraulic system diagrams and provide a standard format. Diagrams prepared in accordance with this document will be suitable for use in procurement activity, shipboard installation, and technical manuals for use in troubleshooting, operation, and maintenance of the hydraulic system.

This SAE Recommended Practice identifies general requirements for hydraulic fluids to be used for ship systems and equipment with respect to power transmission, lubrication, and passive applications. It also indicates the environmental limits within which the fluids shall perform their intended purpose satisfactorily and reliably. Characteristics of particular importance to ship systems and equipment are discussed.

This SAE Recommended Practice identifies general requirements for hydraulic fluids to be used for ship systems and equipment with respect to power transmission, lubrication, and passive applications. It also indicates the environmental limits within which the fluids shall perform their intended purpose satisfactorily and reliably. Characteristics of particular importance to ship systems and equipment are discussed.

This SAE Recommended Practice provides guidance defining the hydraulic system requirements and for preparing a detailed specification for a pumping component. The user can follow this document to set forth the pump environmental and performance considerations, establish service life and reliability goals, and define specific evaluation tests in order to qualify it for advanced marine vehicle applications.

This SAE Recommended Practice identifies and examines the various parameters which must be considered in selecting hydraulic system filters, their locations within the system and the dirt capacity of the filter elements.

This HIR provides a description of bleed-air pneumatic system elements and identifies parameters required to define the requirements for a detailed specification. Specific design requirements are dependent on the application and should be incorporated in a detailed specification.