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Standard

Pump, Hydraulic, Ram, Hand Driven
2001-11-14
HISTORICAL
AS55151
This specification covers hand driven, hydraulic ram pumps used on type I (-65° to +160°F) aircraft hydraulic systems.
Standard

Aerospace-Hydraulic Switching Valve, Pressure or Pilot Operated
2008-02-07
CURRENT
ARP4741
This SAE Aerospace Recommended Practice (ARP) establishes the requirements for the design, manufacture, and qualification of four hydraulic switching valves used in airborne applications. Two are pressure operated, Type IA and IB and two are solenoid/pilot operated, Type IIA and IIB. They are applicable to four pressure classes 3000, 4000, 5000 and 8000 psi. The equipment as designed is intended to be installed in hydraulic systems designed to AS5440 for military applications or ARP4752 and ARP4925 depending on the type of aircraft for commercial applications. Additional or refined requirements shall be contained in the detail (procurement) specification and these shall take precedence over any potentially conflicting requirements of this ARP or documents referenced by this ARP.
Standard

Aerospace-Solenoid Valve, Hydraulic, Three Way, Two Position, Direct Acting
2002-07-02
HISTORICAL
ARP4945
This SAE Aerospace Recommended Practice (ARP) is intended as a guide to aid in the specifying and testing of direct acting three way, two position, single and multiple coil, normally open and normally closed solenoid valves used for the pilot actuation of hydraulic control systems and the control of hydraulic components. The information presented should be useful in standardizing terminology, in specifying requirements and performance parameters, and in defining test methods. The recommendations do not restrict or attempt to define the internal design features of solenoid valves. Standard mechanical, electrical and fluid porting interfaces are recommended to provide commonalty, interchangeability, design flexibility and to be more affordable. In general, this recommended practice is directed toward solenoid valves for use in military and commercial flight control and hydraulic actuation systems.
Standard

Aerospace-Solenoid Valve, Hydraulic, Three Way, Two Position, Direct Acting
2019-10-10
WIP
ARP4945B
This SAE Aerospace Recommended Practice (ARP) is intended as a guide to aid in the specifying and testing of direct acting three way, two position, single and multiple coil, normally open and normally closed solenoid valves used for the pilot actuation of hydraulic control systems and the control of hydraulic components. The information presented should be useful in standardizing terminology, in specifying requirements and performance parameters, and in defining test methods. The recommendations do not restrict or attempt to define the internal design features of solenoid valves. Standard mechanical, electrical and fluid porting interfaces are recommended to provide commonalty, interchangeability, design flexibility and to be more affordable. In general, this recommended practice is directed toward solenoid valves for use in military and commercial flight control and hydraulic actuation systems.
Standard

Aerospace-Solenoid Valve, Hydraulic, Three Way, Two Position, Direct Acting
2013-11-22
CURRENT
ARP4945A
This SAE Aerospace Recommended Practice (ARP) is intended as a guide to aid in the specifying and testing of direct acting three way, two position, single and multiple coil, normally open and normally closed solenoid valves used for the pilot actuation of hydraulic control systems and the control of hydraulic components. The information presented should be useful in standardizing terminology, in specifying requirements and performance parameters, and in defining test methods. The recommendations do not restrict or attempt to define the internal design features of solenoid valves. Standard mechanical, electrical and fluid porting interfaces are recommended to provide commonalty, interchangeability, design flexibility and to be more affordable. In general, this recommended practice is directed toward solenoid valves for use in military and commercial flight control and hydraulic actuation systems.
Standard

COILED TUBING
1960-03-01
HISTORICAL
ARP584
This recommended practice encompasses design, analysis, fabrication, and installation of pressurized plain metal tubing used in fluid power systems to provide relative motion. Specific data given are for MIL-T-6845 tubing ranging from 1 4" to 1" dia. used in 3000 psi hydraulic or pneumatic systems, Types I, II, III or IV applied to any type of vehicle. The flexible configurations of plain metal tubing are intended for application to actuators that oscillate about a pivot, to areas of large structural deflection such as reservoirs installation, and to areas of extreme environment where flexible hose could not survive.
Standard

COILED TUBING, CORROSION RESISTANT STEEL, HYDRAULIC APPLICATIONS
1987-11-01
HISTORICAL
ARP584A
This recommended practice encompasses design, analysis, fabrication, and installation of pressurized plain metal tubing used in fluid power systems to provide relative motion. Specific data given are for MIL-T-6845 tubing ranging from 1/4 inch to 1 inch dia. used in 3000 psi hydraulic or pneumatic systems, Types I, II, III or IV applied to any type of vehicle. The flexible configurations of plain metal tubing are intended for application to actuators that oscillate about a pivot, to areas of large structural deflection such as reservoirs installation, and to areas of extreme environment where flexible hose could not survive.
Standard

Coiled Tubing, Corrosion Resistant Steel, Hydraulic Applications, Aerospace
2002-08-01
HISTORICAL
ARP584B
This SAE Aerospace Recommended Practice (ARP) encompasses design, analysis, fabrication, and installation of pressurized metal tubing used in fluid power systems to provide relative motion. Specific data given are for MIL-T-6845 tubing ranging from 1/4 to 1 in (6.3 to 25 mm) to diameter used in 3000 psi (20.7 MPa) hydraulic or pneumatic system, Military Type I, II, III, or IV hydraulic systems applied to any type of vehicle. For information on design of coiled tube assemblies using Ti-3Al-2.5CWSR tubing, see ARP4146. The flexible configurations of tubing are intended for application to actuators that oscillate about a pivot, to areas of large structural deflection such as reservoirs installation, and to areas of extreme environment where flexible hose could not survive.
Standard

Coiled Tubing - Corrosion Resistant Steel, Hydraulic Applications, Aerospace
2012-01-17
HISTORICAL
ARP584C
This SAE Aerospace Recommended Practice (ARP) addresses the design, installation, and testing of coiled tube assemblies ranging from 1/4 inch (6.3 mm) to 1.0 inch (25 mm) diameter using CRES tubing per AMS-T-6845, unless otherwise approved by the Procuring Activity. This ARP specifically details three different configurations of coiled tubing. These configurations should be compatible with pressure levels up to 3000 psi (20.7 MPa) upon the completion of the analysis for the actual stress and life requirement of the intended application. However, formal qualification tests are recommended to verify the satisfactory installation, clamping, and the life of each unique design. NOTE: Refer to ARP4146 for information on design of coiled tube assemblies using Titanium tubing.
Standard

Coiled Tubing - Corrosion Resistant Steel, Hydraulic Applications, Aerospace
2017-06-16
CURRENT
ARP584D
This SAE Aerospace Recommended Practice (ARP) addresses the design, installation, and testing of coiled tube assemblies ranging from 1/4 inch (6.3 mm) to 1.0 inch (25 mm) diameter using CRES tubing per AMS-T-6845, unless otherwise approved by the Procuring Activity. This ARP specifically details three different configurations of coiled tubing. These configurations should be compatible with pressure levels up to 3000 psi (20.7 MPa) upon the completion of the analysis for the actual stress and life requirement of the intended application. However, formal qualification tests are recommended to verify the satisfactory installation, clamping, and the life of each unique design. NOTE: Refer to ARP4146 for information on design of coiled tube assemblies using Titanium tubing.
Standard

Aerospace - Valves, Check, Hydraulic, Aircraft and Missile
2000-10-01
HISTORICAL
ARP4946
This SAE Aerospace Recommended Practice (ARP) establishes the general requirements for spring-loaded, normally closed check valves for use in Type I, Type II, or Type III aircraft and missile hydraulic systems having nominal operating pressure shown in Table 1.
Standard

Solenoid, Electrical, General Specification for
2023-04-26
CURRENT
AS40401
This specification covers the general requirements for electrical solenoids used to actuate various devices through the conversion of electrical signals into mechanical motion. These solenoids are of the axial stroke type and the rotary stroke type.
Standard

Design of Tubing Installations for Aerospace Hydraulic Systems
2016-11-17
HISTORICAL
ARP994B
This document provides recommended practices for the design and selection of tube, hose, and fitting systems that are used to transmit hydraulic fluid on aircraft. NOTE: Guidance for the sizing of hydraulic tubing is contained in Appendix A.
Standard

Recommended Practice for the Design of Tubing Installations for Aerospace Fluid Power Systems
2012-08-22
HISTORICAL
ARP994A
This document provides recommended practices for the design of tubing systems that are used for the transmission of liquid and gasses in fluid power systems for aerospace vehicles such as aircraft, missiles and boosters. The primary emphasis is given to recommended practices for line sizing, tube routing, supports and clamping, stress considerations and permissible defects, and provisions for flexure through the use of flexible hoses, coiled tubes, swivel joints, and expansion glands. The sections regarding tubing materials and fitting types are included for reference, but particular recommendations are purposely avoided since their selection is dependent upon the specific requirements of each particular vehicle system and many other factors.
Standard

RECOMMENDED PRACTICE FOR THE DESIGN OF TUBING INSTALLATIONS FOR AEROSPACE FLUID POWER SYSTEMS
1991-11-01
HISTORICAL
ARP994
This document is a compendium of recommended practices for the design of tubing systems for the transmission of liquid and gasses influid power systems for aerospace vehicles such as aircraft, missiles and boosters, and is considered applicable to the design of future space vehicles and other applications using aircraft technology. Primary emphasis is given to recommended practices for line sizing, tube routing, supports and clamping, stress considerations and permissible defects, and provisions for flexure through the use of flexible hoses, coiled tubes, swivel joints, and expansion glands. Fluid power systems are differentiated from the normal aircraft fuel and oil systems and the various fluid systems used for environmental control and air conditioning systems; however, the practices cited herein will in many cases be applicable to these other systems.
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