AS 3791-1991

1 - AS 3791-1991 HYDRAULIC HOSE
4 - PREFACE
5 - CONTENTS
6 - SECTION 1 SCOPE AND GENERAL
6 - 1.1 SCOPE
6 - 1.2 REFERENCED DOCUMENTS
6 - 1.3 CLASSIFICATION
6 - 1.4 VISUAL EXAMINATION
6 - 1.5 CONSIDERATIONS RELATING TO HOSE USAGE
6 - 1.5.1 Flexibility
6 - 1.5.2 Fittings
6 - 1.6 MARKING
8 - SECTION 2 CONSTRUCTION, DIMENSIONS, PROPERTIES AND TEST REQUIREMENTS
8 - 2.1 STEEL WIRE-REINFORCED, RUBBER- COVERED HYDRAULIC HOSE (100R1)
8 - 2.1.1 Concentricity
8 - 2.1.2 Hose construction
8 - 2.1.3 Maximum operating pressure
8 - 2.1.4 Minimum bend radius
8 - 2.1.5 Test requirements
9 - 2.2 HIGH PRESSURE, STEEL WIRE-REINFORCED, RUBBER- COVERED HYDRAULIC HOSE (100R2)
9 - 2.2.1 Concentricity
9 - 2.2.2 Hose construction
10 - 2.2.3 Maximum operating pressure
10 - 2.2.4 Minimum bend radius
10 - 2.2.5 Test requirements
11 - 2.3 DOUBLE (NON-METALLIC) FIBRE BRAID REINFORCED, RUBBER- COVERED HYDRAULIC HOSE (100R3)
11 - 2.3.1 Concentricity
11 - 2.3.2 Hose construction
11 - 2.3.3 Maximum operating pressure
11 - 2.3.4 Minimum bend radius
11 - 2.3.5 Test requirements
12 - 2.4 WIRE-INSERTED HYDRAULIC SUCTION HOSE (100R4)
12 - 2.4.1 Hose construction
12 - 2.4.2 Maximum operating pressure
12 - 2.4.3 Minimumbend radius
12 - 2.4.4 Test requirements
13 - 2.5 SINGLE WIRE BRAID REINFORCED, TEXTILE- COVERED HYDRAULIC HOSE (100R5)
13 - 2.5.1 Concentricity
13 - 2.5.2 Hose construction
13 - 2.5.3 Maximum operating pressure
13 - 2.5.4 Minimum bend radius
13 - 2.5.5 Test requirements
15 - 2.6 SINGLE (NON-METALLIC) FIBRE BRAID REINFORCED, RUBBER-COVERED HYDRAULIC HOSE (100R6)
15 - 2.6.1 Concentricity
15 - 2.6.2 Hose construction
15 - 2.6.3 Maximum operating pressure
15 - 2.6.4 Minimum bend radius
15 - 2.6.5 Test requirements
16 - 2.7 THERMOPLASTIC, SYNTHETIC FIBRE-REINFORCED, HYDRAULIC HOSE (100R7)
16 - 2.7.1 Concentricity
16 - 2.7.2 Maximum operating pressure
16 - 2.7.3 Minimum bend radius
16 - 2.7.4 Hose construction
16 - 2.7.5 Test requirements
17 - 2.8 HIGH PRESSURE, THERMOPLASTIC HYDRAULIC HOSE (100R8)
17 - 2.8.1 Concentricity
17 - 2.8.2 Maximum operating pressure
17 - 2.8.3 Minimum bend radius
17 - 2.8.4 Hose construction
17 - 2.8.5 Test requirements
18 - 2.9 HIGH PRESSURE, 4-SPIRAL STEEL WIRE-REINFORCED, RUBBER- COVERED HYDRAULIC HOSE (100R9)
18 - 2.9.1 Concentricity
18 - 2.9.2 Hose construction
18 - 2.9.3 Maximum operating pressure
19 - 2.9.4 Minimum bend radius
19 - 2.9.5 Test requirements
20 - 2.10 HEAVY DUTY, 4-SPIRAL STEEL WIRE- REINFORCED, RUBBER- COVERED HYDRAULIC HOSE (100R10)
20 - 2.10.1 Concentricity
20 - 2.10.2 Hose construction
20 - 2.10.3 Maximum operating pressure
20 - 2.10.4 Minimum bend radius
20 - 2.10.5 Test requirements
21 - 2.11 HEAVY DUTY, 6-SPIRAL STEEL WIRE-REINFORCED, RUBBER-COVERED HYDRAULIC HOSE (100R11)
21 - 2.11.1 Dimensions
21 - 2.11.2 Hose construction
21 - 2.11.3 Maximum operating pressure
21 - 2.11.4 Minimum bend radius
22 - 2.11.5 Test requirements
23 - 2.12 HEAVY DUTY, HIGH-IMPULSE 4-SPIRAL WIRE-REINFORCED, RUBBER- COVERED HYDRAULIC HOSE (100R12)
23 - 2.12.1 Dimensions
23 - 2.12.2 Hose construction
23 - 2.12.3 Maximum operating pressure
23 - 2.12.4 Minimum bend radius
23 - 2.12.5 Test requirements
24 - 2.13 HEAVY DUTY, HIGH-IMPULSE, MULTIPLE SPIRAL WIRE- REINFORCED, RUBBER-COVERED HYDRAULIC HOSE (100R13)
24 - 2.13.1 Dimensions.
24 - 2.13.2 Hose construction
24 - 2.13.3 Maximum operating pressure
24 - 2.13.4 Minimum bend radius
24 - 2.13.5 Test requirements
25 - 2.14 POLYTETRAFLUOROETHYLENE-(PTFE-)LINED HYDRAULIC HOSE (100R14)
25 - 2.14.1 Dimensions
26 - 2.14.2 Hose construction
26 - 2.14.3 Maximum operating pressure
26 - 2.14.4 Minimum bend radius
26 - 2.14.5 Test requirements

Specifies dimensional and performance requirements for 14 classes of hydraulic hose having burst pressures up to 345 MPa and operating temperatures from -55 degrees Celsius to 205 degrees Celsius. Flexibility, visual examination and marking requirements are also covered.

This Standard specifies 14 classes for hydraulic hose having burst pressures up to 345 MPa and operating temperatures from -55C to +205C when used under normal operating conditions.The Standard covers hose manufactured from elastomeric materials, reinforced with braided or spirally wound steel wire, or with braided textile or a combination of these materials.The Standard sets out dimensional and performance requirements, together with the methods for testing the performance requirements stated.The Standard does not cover requirements for hydraulic hose for use in underground mines.NOTE: Operating temperatures and pressures in excess of that specified for the appropriate class may materially reduce the life of the hose.

First published as AS B226-1972.
Revised and redesignated AS 3791-1991.