Page 498 - 2019 PRODUCT TECHNICAL MANUAL - HYDRAULICS V4-8

TECHNICAL
GUIDE TO THREAD AND CONNECTOR WORKING PRESSURES
WORKING PRESSURES - ADAPTORS, HOSE COUPLINGS AND HOSE ASSEMBLIES.
Since many factors influence the pressure at which a hydraulic system will, or will not, perform satisfactorily, maximum working pressures listed below should be used as a guide only and not as a “standard” nor “specification”, nor construed as a “guaranteed minimum.” Within the fluid power industry, many criteria are used for the determination of pressure capability. Various fibre stresses, minimum yields and design factors are applied, commensurate with total system conditions. Thus, it is impractical to lay down specific allowable working pressures that satisfy all design criteria. Unless otherwise specified in this document, and given correct working conditions, including, but not limited to, torque setting, assembly, alignment, support, pressures (internal and external), temperature limits, environmental, installation, vibration free, damage free, chemical, cleanliness and regular maintenance and inspection, the following may be used as a guide to maximum working pressure. For further technical assistance contact RYCO Hydraulics Technical Department or your RYCO Hydraulics distributor.
The Maximum Working Pressure of a Hose Assembly is the lesser rated Working Pressure of the Hose or Tube or End Style (Connector termination). The Maximum Rated Working Pressure of an Adaptor with a combination of Thread / End Styles and sizes, is the Maximum Working Pressure of the least rated end.
BSP
BSPT MALE
BSPP MALE
BSPT
MALE LIVE SWIVEL
BSPT FEMALE FIXED
BSPP FEMALE SWIVEL (CRIMP NUT)
BSPP FEMALE SWIVEL (WIRE NUT)
BSPO FEMALE SWIVEL
BSPP MALE NON- ADJUSTABLE (O RING & RETAINING RING)
THREAD SIZE
DASH SIZE
MAX. WORKING PRESSURE
inch
1/4 -04 1/2 -08 3/4 -12
1.1/4 -20 2 -32
bar psi bar psi bar
psi bar
6100 690 5100 690 4100 620
480 350
psi bar psi bar
10000 690 10000 10000 480 7000
psi
bar psi
690 10000 480 7000 420 6100 215 3100 100 1500
bar psi
350 5100 350 5100 280 4100 215 3100 180 2600
1/8
-02
690
10000
690
10000
420
6100
690
10000
690
10000
690
10000
350
5100
690 10000 690 690 10000 480 620 9000 450 480 7000 215 350 5100 100
10000 420 7000 350 6500 280 3100
1500
9000 420 6100 420 6100
3/8
-06
690
10000
620
9000
420
6100
690
10000
620
9000
620
9000
350
5100
5/8
-10
690
10000
480
7000
280
4100
690
10000
480
7000
550
8000
480
7000
350
5100
1
-16
620
9000
350
5100
215
3100
620
9000
350
5100
350
5100
350
5100
215
3100
7000 5100
215
3100
215 3100 100 1500
1.1/2
-24
420
6100
100
1500
420
6100
100
1500
100
1500
215
3100
2.1/2
-40
215
3100
BSP
BSPP MALE ADJUSTABLE (O RING & RETAINING RING)
BSPP
MALE (BONDED SEAL)
BSPP
MALE (ENCAPSULATED SEAL)
THREAD SIZE
DASH SIZE
MAX. WORKING PRESSURE
inch
1/4 -04 1/2 -08 3/4 -12
1.1/4 -20 2 -32
bar psi
350 5100 310 4500
280 4100 170 2500
bar
420 350
280 280 150
psi
6100 5100
4100 4100 2100
bar psi
620 9000 480 7000
480 7000 280 4100 230 3300
1/8
-02
380
5500
420
6100
620
9000
3/8
-06
350
5100
420
6100
480
7000
5/8
-10
350
5100
480
7000
1
-16
215
3100
280
4100
370
5300
1.1/2
-24
215
3100
280
4100
496
HIGHER TECHNOLOGYRYECQOUAQLUSALGIRTEYATER PERFORMANCE