2
3
1
3
FOR ALUMINUM OR STEEL VALVE HOUSING CONFIGURATIONS SEE PAGE 0-021-1.
FOR ALUMINUM OR STEEL VALVE HOUSING CONFIGURATIONS SEE PAGE 0-021-1.
1
2
2.50"
2.50"
[63,5]
[63,5]
2.25"
2.25"
[57,2]
[57,2]
.88"
.88"
[22,4]
[22,4]
1.60"
1.60"
[40,6]
[40,6]
.15"
.15"
[3,8]
[3,8]
.312"
.312"
[7,9]
[7,9]
NOTE: CAVITY BOTTOM HOLE MUST ALLOW FOR POPPET EXTENSION (.500 DIA.).
NOTE: CAVITY BOTTOM HOLE MUST ALLOW FOR POPPET EXTENSION (.500 DIA.).
1.00"
1.00"
[25,4]
[25,4]
HEX
HEX
PRESSURE DROP ( P)
PRESSURE DROP ( P)
PSI
PSI
0
100
100
50
50
2
G.P.M.(135 SUS)
G.P.M.(135 SUS)
4
6
200
200
150
150
7,6
7,6
L/M (28,5 cSt)
L/M (28,5 cSt)
15,1
15,1
22,7
22,7
8
10
10
BAR
BAR
7,0
7,0
3,5
3,5
30,3
30,3
38
38
10,5
10,5
14,0
14,0
60
60
30
30
10
10
CRACK PRESSURE
CRACK PRESSURE
010
010
030
030
060
060
= 10 PSI
= 10 PSI
= 30 PSI
= 30 PSI
= 60 PSI
= 60 PSI
SEALS
SEALS
08 = 3/4"-16 UNF
08 = 3/4"-16 UNF
BASIC
BASIC
SIZE
SIZE
PORTS
PORTS
0
03BX
03BX
08TX
08TX
= CARTRIDGE ONLY
= CARTRIDGE ONLY
= G 3/8" BSPP
= G 3/8" BSPP
= SAE - #8
= SAE - #8
"A" - ALUM. HOUSING
"A" - ALUM. HOUSING
"S" - STEEL HOUSING
"S" - STEEL HOUSING
N = BUNA "N"
N = BUNA "N"
V = VITON
V = VITON
= FIXED
= FIXED
ADJUSTMENT
ADJUSTMENT
F
F
POCI-08-X-F-X-XXX
POCI-08-X-F-X-XXX
PILOT OPERATED CHECK VALVE POPPET TYPE,
PILOT OPERATED CHECK VALVE POPPET TYPE,
PILOT TO OPEN, 3 TO 1 PILOT RATIO
PILOT TO OPEN, 3 TO 1 PILOT RATIO
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-011010-EN-00/09.2015
POCI-08
SPECIFICATIONS
SPECIFICATIONS
FEATURES AND BENEFITS
FEATURES AND BENEFITS
OPERATIONS
OPERATIONS
DESCRIPTION
DESCRIPTION
Industry common cavity.
Industry common cavity.
All cartridge valves are 100% functionally tested.
All cartridge valves are 100% functionally tested.
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.
VALVE CAVITY: #C0825, See Page 0-021.0.
VALVE CAVITY: #C0825, See Page 0-021.0.
WEIGHT: .26 lb [.12 kg] cartridge only.
WEIGHT: .26 lb [.12 kg] cartridge only.
SKV-0828 Viton
SKV-0828 Viton
SEAL KIT: SKN-0828 Buna "N"
SEAL KIT: SKN-0828 Buna "N"
INSTALLATION: No restrictions.
INSTALLATION: No restrictions.
INTERNAL LEAKAGE: 5 drops per minute maximum @ 5,000 PSI [350 Bar]
INTERNAL LEAKAGE: 5 drops per minute maximum @ 5,000 PSI [350 Bar]
PILOT RATIO: 3 TO 1
PILOT RATIO: 3 TO 1
FLOW: 10.0 GPM [38 l/m] nominal. See performance chart.
FLOW: 10.0 GPM [38 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]
a very quick, reliable and positve valve re-seat.
a very quick, reliable and positve valve re-seat.
A seperate heavy spring assures fast return of the pilot piston for
A seperate heavy spring assures fast return of the pilot piston for
A low friction seal on pilot piston is standard.
A low friction seal on pilot piston is standard.
that is required at port 3 to open the valve.
that is required at port 3 to open the valve.
that it takes at least one-third of the load pressure held at port 1
that it takes at least one-third of the load pressure held at port 1
This pilot operated check valve has a 3 to 1 pilot ratio, meaning
This pilot operated check valve has a 3 to 1 pilot ratio, meaning
from port 1 to port 2 when pressure is applied to port 3.
from port 1 to port 2 when pressure is applied to port 3.
flow from port 1 to port 2 or holding a load. Flow will be allowed
flow from port 1 to port 2 or holding a load. Flow will be allowed
This valve allows free flow from port 2 to port 1 and blocks
This valve allows free flow from port 2 to port 1 and blocks
or load holding device for high pressure applications.
or load holding device for high pressure applications.
hydraulic pilot operated check valve, for use as a blocking
hydraulic pilot operated check valve, for use as a blocking
This unit is a SCREW IN, cartridge type, guided poppet,
This unit is a SCREW IN, cartridge type, guided poppet,
PILOT OPERATED CHECK VALVE POPPET TYPE,
PILOT OPERATED CHECK VALVE POPPET TYPE,
PILOT TO OPEN, 3 TO 1 PILOT RATIO.
PILOT TO OPEN, 3 TO 1 PILOT RATIO.
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-011010-EN-00/09.2015
POCI-08