BS 6494-6:1989
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Hydraulic fluid power valve mounting surfaces Specification for pressure-control valves (excluding pressure-relief valves), sequence valves, unloading valves, throttle valves and check valves
Hardcopy , PDF
15-12-2000
English
28-02-1989
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National foreword
Committees responsible
Specification
0. Introduction
1. Scope and field of application
2. References
3. Definitions
4. Symbols
5. Tolerances
6. Dimensions
7. Port marking
8. Modular stack valves
9. Working pressure
10. Identification statement
Figures
1. Mounting surface for pressure-control valves,
sequence valves, unloading valves, throttle valves
and check valves with main ports of 4 mm maximum
port diameter (size 02)
2. Directly operated pressure-control valves, sequence
valves, unloading valves, throttle valves,
unloading valves, throttle valves and check valves
with main ports of 4 mm maximum port diameter
(code: ISO 5781-AA-02-4-B)
3. Mounting surface for pressure-control valves,
sequence valves, unloading valves, throttle valves
and check valves with main ports of 7,5 mm maximum
port diameter (size 03)
4. Directly operated pressure-control valves, sequence
valves, unloading valves, throttle valves and check
valves with main ports of 7,5 mm maximum port
diameter (code: ISO 5781-AB-03-4-B)
5. Pilot-operated pressure-control valves, sequence
valves and unloading valves with main ports of
7,5 mm maximum port diameter (code: ISO
5781-AB-03-4-C)
6. Mounting surface for pressure-control valves,
sequence valves, unloading valves, throttle valves
and check valves with main ports of 14,7 mm maximum
port diameter (size 06)
7. Directly-operated pressure-control valves, unloading
valves, throttle valves and check valves with main
ports of 14,7 mm maximum port diameter (code: ISO
5781-AG-06-2-A)
8. Pilot-operated pressure-control valves, sequence
valves and unloading valves with main ports of
14,7 mm maximum port diameter (code: ISO
5781-AG-06-2-A)
9. Mounting surface for pressure-control valves,
sequence valves, unloading valves, throttle valves
and check valves with main ports 23.4 mm maximum
port diameter (size 08)
10. Directly operated pressure-control valves, unloading
valves, throttle valves and check valves with main
ports of 23,4 mm maximum port diameter (code: ISO
5781-AH-08-2-A)
11. Pilot-operated pressure-control valves, sequence
valves and unloading valves with main ports of
23,4 mm maximum port diameter (code: ISO
5781-AH-08-2-A)
12. Mounting surface for pressure-control valves,
sequence valves, unloading valves, throttle valves
and check valves with main ports of 32 mm maximum
port diameter (size 10)
13. Directly operated pressure-control valves, unloading
valves, throttle valves and check valves with main
ports of 32 mm maximum port diameter (code: ISO
5781-AJ-10-2-A)
14. Pilot-operated pressure-control valves, sequence
valves and unloading valves with main ports of
32 mm maximum port diameter (code: ISO
5781-AJ-10-2-A)
Bibliography
Dimensions and other data of mounting surfaces to ensure interchangeability.
| Committee |
MCE/18
|
| DocumentType |
Standard
|
| Pages |
30
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy |
| Standards | Relationship |
| ISO 5781:2016 | Identical |
| BS 308-3:1972 | Engineering drawing practice. Geometrical tolerancing |
| BS 3643-1:1981 | ISO metric screw threads Principles and basic data |
| ISO 5598:2008 | Fluid power systems and components Vocabulary |
| ISO 1101:2017 | Geometrical product specifications (GPS) — Geometrical tolerancing — Tolerances of form, orientation, location and run-out |
| BS 6494-1:1984 | Hydraulic fluid power valve mounting surfaces Specification for four-port directional control valves |
| BS 4500-1:1969 | ISO limits and fits General, tolerances and deviations |
| BS 1134-2:1972 | Method for the assessment of surface texture General information and guidance |
| ISO 468:1982 | Surface roughness — Parameters, their values and general rules for specifying requirements |
| ISO 5783:1995 | Hydraulic fluid power Code for identification of valve mounting surfaces and cartridge valve cavities |
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