1
2
FOR ALUMINUM OR STEEL VALVE HOUSING CONFIGURATIONS SEE PAGE 0-011.1
FOR ALUMINUM OR STEEL VALVE HOUSING CONFIGURATIONS SEE PAGE 0-011.1
08 = 3/4"-16 UNF
08 = 3/4"-16 UNF
N = BUNA "N"
N = BUNA "N"
V = VITON
V = VITON
SEALS
SEALS
06TX = SAE - #6
06TX = SAE - #6
"S" - STEEL HOUSING
"S" - STEEL HOUSING
"A" - ALUM. HOUSING
"A" - ALUM. HOUSING
02BX = G 1/4" BSPP
02BX = G 1/4" BSPP
0 = CARTRIDGE ONLY
0 = CARTRIDGE ONLY
PORTS
PORTS
BASIC
BASIC
SIZE
SIZE
PRESSURE RANGE
PRESSURE RANGE
15 = 50 TO 1500 PSI
15 = 50 TO 1500 PSI
30 = 50 TO 3000 PSI
30 = 50 TO 3000 PSI
50 = 50 TO 5000 PSI
50 = 50 TO 5000 PSI
.315" [8.0] HEX.
.315" [8.0] HEX.
1.88"
1.88"
[47,62]
[47,62]
1.88"
1.88"
[47,62]
[47,62]
1.10"
1.10"
[27,9]
[27,9]
1
2
1.62"
1.62"
[41,1]
[41,1]
1.00"
1.00"
HEX
HEX
[25,4]
[25,4]
PRESSURE DROP ( P)
PRESSURE DROP ( P)
1000
1000
PSI
PSI
0
3000
3000
2000
2000
2
G.P.M.(135 SUS)
G.P.M.(135 SUS)
4
6
7,6
7,6
5000
5000
4000
4000
L/M (28,5 cSt)
L/M (28,5 cSt)
15,1
15,1
22,7
22,7
8
70
70
10
10
BAR
BAR
138
138
207
207
30,3
30,3
38
38
276
276
345
345
= ADJUSTING SCREW
= ADJUSTING SCREW
= CAPPED
= CAPPED
= TAMPERPROOF
= TAMPERPROOF
= HANDKNOB
= HANDKNOB
= METAL HANDKNOB
= METAL HANDKNOB
FOR ADJUSTMENT CONTROL
FOR ADJUSTMENT CONTROL
OPTIONS SEE PAGE 0-050.0
OPTIONS SEE PAGE 0-050.0
ADJUSTMENT
ADJUSTMENT
S
S
C
C
T
T
K
K
M
M
RVPS-08-X-X-X-XX
RVPS-08-X-X-X-XX
RELIEF VALVE
RELIEF VALVE
PILOT OPERATED, SLIDING SPOOL
PILOT OPERATED, SLIDING SPOOL
Steel = 35/40 Ft-Lb. [47/54 Nm]
Steel = 35/40 Ft-Lb. [47/54 Nm]
TORQUE:
TORQUE:
Aluminum = 25/30 Ft-Lb. [34/41 Nm]
Aluminum = 25/30 Ft-Lb. [34/41 Nm]
Reference: 520-P-030310-EN-00/09.2015
RVPS-08
SPECIFICATIONS
SPECIFICATIONS
FEATURES AND BENEFITS
FEATURES AND BENEFITS
OPERATIONS
OPERATIONS
DESCRIPTION
DESCRIPTION
All external carbon steel parts are plated for longer life against the elements.
All external carbon steel parts are plated for longer life against the elements.
Industry common cavity.
Industry common cavity.
All cartridge valves are 100% functionally tested.
All cartridge valves are 100% functionally tested.
Valve is available with screw, tamperproof, capped and handknob adjustments.
Valve is available with screw, tamperproof, capped and handknob adjustments.
VALVE CAVITY: #C0820, See Page 0-011.0.
VALVE CAVITY: #C0820, See Page 0-011.0.
WEIGHT: 0.26 lb [.12 kg] cartridge only.
WEIGHT: 0.26 lb [.12 kg] cartridge only.
SKV-0822 for Viton.
SKV-0822 for Viton.
SEAL KIT NUMBER: SKN-0822 for Buna "N".
SEAL KIT NUMBER: SKN-0822 for Buna "N".
FILTRATION: 25 microns or better.
FILTRATION: 25 microns or better.
INSTALLATION: No restriction.
INSTALLATION: No restriction.
DEFINITION OF CRACK: evident at 0.06 GPM [0.25 LPM]
DEFINITION OF CRACK: evident at 0.06 GPM [0.25 LPM]
INTERNAL LEAKAGE: 5 cu.in/min [85 cc/m] @ 95% of crack pressure.
INTERNAL LEAKAGE: 5 cu.in/min [85 cc/m] @ 95% of crack pressure.
FLOW: 15.0 GPM [57 L/M] nominal. See performance chart.
FLOW: 15.0 GPM [57 L/M] nominal. See performance chart.
PROOF PRESSURE: 10,000 PSI [700 Bar]
PROOF PRESSURE: 10,000 PSI [700 Bar]
OPERATING PRESSURE: 5,000 PSI [350 Bar]
OPERATING PRESSURE: 5,000 PSI [350 Bar]
cartridge valve for accurate and smooth pressure regulation.
cartridge valve for accurate and smooth pressure regulation.
This unit is a PILOT OPERATED, BALANCED SLIDING SPOOL, PRESSURE RELIEF,
This unit is a PILOT OPERATED, BALANCED SLIDING SPOOL, PRESSURE RELIEF,
and reliable operation.
and reliable operation.
A unique self aligning (floating) cage provides very low hysteresis
A unique self aligning (floating) cage provides very low hysteresis
Hardened precision fitted spool & cage provides reliable, long life.
Hardened precision fitted spool & cage provides reliable, long life.
Overset protection - pilot spring can not go solid.
Overset protection - pilot spring can not go solid.
Adjustment screw can not be backed out of the valve.
Adjustment screw can not be backed out of the valve.
Leakproof screw adjustment.
Leakproof screw adjustment.
response to a load change in a hydraulic circuit.
response to a load change in a hydraulic circuit.
This cartridge relief valve offers a smooth transition in
This cartridge relief valve offers a smooth transition in
from its seat thus opening the valve.
from its seat thus opening the valve.
sufficient pressure is present at port #1 to force the pilot poppet
sufficient pressure is present at port #1 to force the pilot poppet
This valve (RVPS) blocks flow from port #1 to port #2 until
This valve (RVPS) blocks flow from port #1 to port #2 until
Pressure in tank port (2) will add to the bias spring setting,
Pressure in tank port (2) will add to the bias spring setting,
and is limited to 2000 PSI.
and is limited to 2000 PSI.
PILOT OPERATED, SLIDING SPOOL
PILOT OPERATED, SLIDING SPOOL
RELIEF VALVE
RELIEF VALVE
MIL-H-5606, SAE-#10, SAE-#20, etc.
MIL-H-5606, SAE-#10, SAE-#20, etc.
OPERATING MEDIA: All general purpose hydraulic fluids such as
OPERATING MEDIA: All general purpose hydraulic fluids such as
OPERATING TEMPERATURE: -40° to +250° F. [-40° to +120° C.]
OPERATING TEMPERATURE: -40° to +250° F. [-40° to +120° C.]
5000 PSI [350 Bar] = Steel - Unplated.
5000 PSI [350 Bar] = Steel - Unplated.
VALVE HOUSINGS: 2500 PSI [175 Bar] = Aluminum - Anodized.
VALVE HOUSINGS: 2500 PSI [175 Bar] = Aluminum - Anodized.
info.el@bucherhydraulics.com www.bucherhydraulics.com/commoncavity
2015 by Bucher Hydraulics, Inc., 2545 Northwest Parkway, Elgin, Illinois 60124, USA
All rights reserved.
Data is provided for the purpose of product description only, and must not be construed as warranted characteristics in the legal sense.
The information does not relieve users from the duty of conducting their own evaluations and tests. Because the products are subject to
continual improvement, we reserve the right to amend the product specifications contained in this catalogue.
©
Reference: 520-P-030310-EN-00/09.2015
RVPS-08