FOR ALUMINUM OR STEEL VALVE HOUSING CONFIGURATIONS SEE PAGE 0-013.1
FOR ALUMINUM OR STEEL VALVE HOUSING CONFIGURATIONS SEE PAGE 0-013.1
[69,9]
[69,9]
2.75"
2.75"
Pat, # 5,546,980
Pat, # 5,546,980
PRESSURE DROP ( P)
PRESSURE DROP ( P)
60
60
G.P.M.(135 SUS)
G.P.M.(135 SUS)
1000
1000
0
PSI
PSI
10
10
20
20
2000
2000
3000
3000
30
30
40
40
50
50
69
69
BAR
BAR
138
138
207
207
227
227
L/M (28,5 cSt)
L/M (28,5 cSt)
4000
4000
76
76
38
38
151
151
114
114
189
189
2.75"
2.75"
[69,9]
[69,9]
[44,5]
[44,5]
1.75"
1.75"
[46,0]
[46,0]
1.81"
1.81"
276
276
[33,4]
[33,4]
1.31"
1.31"
HEX
HEX
.315" [8,0] HEX.
.315" [8,0] HEX.
2
1
SEALS
SEALS
12 = 1.062"-12 UNF
12 = 1.062"-12 UNF
BASIC
BASIC
SIZE
SIZE
PORTS
PORTS
0
0
04BX
04BX
06BX
06BX
10TX
10TX
12TX
12TX
= CARTRIDGE ONLY
= CARTRIDGE ONLY
= G 1/2" BSPP
= G 1/2" BSPP
= G 3/4" BSPP
= G 3/4" BSPP
= SAE - #10
= SAE - #10
= SAE - #12
= SAE - #12
"A" - ALUM. HOUSING
"A" - ALUM. HOUSING
"S" - STEEL HOUSING
"S" - STEEL HOUSING
N = BUNA "N"
N = BUNA "N"
V = VITON
V = VITON
PRESSURE RANGE
PRESSURE RANGE
15
15
30
30
50
50
= 100 TO 1500 PSI
= 100 TO 1500 PSI
= 300 TO 3000 PSI
= 300 TO 3000 PSI
= 500 TO 5000 PSI
= 500 TO 5000 PSI
= 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
1
2
RVPS-12-X-X-X-XX
RVPS-12-X-X-X-XX
RELIEF VALVE
RELIEF VALVE
PILOT OPERATED, SLIDING SPOOL
PILOT OPERATED, SLIDING SPOOL
Steel = 70/75 Ft-Lb. [95/102 Nm]
Steel = 70/75 Ft-Lb. [95/102 Nm]
TORQUE:
TORQUE:
Aluminum = 55/60 Ft-Lb. [74/81 Nm]
Aluminum = 55/60 Ft-Lb. [74/81 Nm]
Reference: 520-P-030330-EN-00/09.2015
RVPS-12
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.
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: #C1220, See Page 0-013.0.
VALVE CAVITY: #C1220, See Page 0-013.0.
WEIGHT: 0.63 lb [.25 kg] cartridge only.
WEIGHT: 0.63 lb [.25 kg] cartridge only.
SKV-1222 for Viton.
SKV-1222 for Viton.
SEAL KIT NUMBER: SKN-1222 for Buna "N".
SEAL KIT NUMBER: SKN-1222 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: 60.0 GPM [227 L/M] nominal. See performance chart.
FLOW: 60.0 GPM [227 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.
to a load change in a hydraulic circuit.
to a load change in a hydraulic circuit.
This cartridge relief valve offers a smooth transition in response
This cartridge relief valve offers a smooth transition in response
is present at port 1 to force the pilot poppet from its seat thus
is present at port 1 to force the pilot poppet from its seat thus
This valve blocks flow from port 1 to port 2 until sufficient pressure
This valve blocks flow from port 1 to port 2 until sufficient pressure
opening the valve.
opening the valve.
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-030330-EN-00/09.2015
RVPS-12