HLSS-10
2
PRESSURE SEQUENCE VALVE 3
SPOOL TYPE, HI-LO PRESSURE SEQUENCE. 1
TORQUE:
Steel = 55/60 Ft-Lb. [74/81 Nm]
Aluminum = 35/40 Ft-Lb. [47/54 Nm]
1.06"
[27,0]
HEX
.315" [8,0] HEX.
1.75"
[44,5]
MAX.
2.75"
[69,8]
3
1.85"
[47,0]
2
1
2.50"
[63,5]
FOR ALUMINUM OR STEEL VALVE HOUSING CONFIGURATIONS SEE PAGE 0-022.1
L/M (28,5 cSt)
HLSS-10-X-X-X-XX
19 38 57 76
5000 350
3
PRESSURE RANGE
BASIC 12 = 250 TO 1200 PSI
276
4000
P)
20 = 800 TO 2000 PSI
SIZE 40 = 2220 TO 4000 PSI
10 = 7/8"-14 UNF
PRESSURE DROP (
3000 207
SEALS
N = BUNA "N" PORTS 3
V = VITON 0 = CARTRIDGE ONLY
03BX = G 3/8" BSPP 138
2000
ADJUSTMENT 04BX = G 1/2" BSPP 3
S = ADJUSTING SCREW 08TX = SAE - #8
C = CAPPED 10TX = SAE - #10
T = TAMPERPROOF 1000 69
K = HANDKNOB "A" - ALUM. HOUSING
M = METAL HANDKNOB "S" - STEEL HOUSING
2 to 1
PSI BAR
FOR ADJUSTMENT CONTROL 0 5 10 15 20
OPTIONS SEE PAGE 0-050.0 G.P.M.(135 SUS)
Reference: 520-P-060120-EN-00/09.2015
HLSS-10
PRESSURE SEQUENCE VALVE
SPOOL TYPE, HI-LO PRESSURE SEQUENCE.
DESCRIPTION
This unit is a DIRECT ACTING, SCREW IN CARTRIDGE STYLE,
SPOOL TYPE, ADJUSTABLE, SOFT SHIFT (shock free), HYDRAULIC
HI-LO PRESSURE SEQUENCE VALVE.
OPERATIONS
This valve blocks flow from port #2 to port #1 until sufficient
pressure is present at port #3 to force the diffirential area spool
to shift thus opening the valve very gradually and without any shock.
This valve is used in a two pump circuit to load and unload low press.
high volume pump, from a high press. low volume pump pressure signal.
FEATURES AND BENEFITS
Leakproof screw adjustment.
Adjustment screw can not be backed out of the valve.
Overset protection - spring can not go solid.
Hardened precision fitted spool & cage provides reliable, long life.
A unibody cage construction provides very low hysteresis, dependable
and reliable operation.
All external carbon steel parts are plated for longer life against the elements.
Valve is available with screw, tamperproof, capped and handknob adjustments.
All cartridge valves are 100% functionally tested.
Industry common cavity.
SPECIFICATIONS
OPERATING PRESSURE: 5,000 PSI [350 Bar]
PROOF PRESSURE: 10,000 PSI [700 Bar]
FLOW: 20.0 GPM [76 L/M] nominal. See performance chart.
INTERNAL LEAKAGE: 5 cu.in./min [85 cc/m] @ 85% of crack pressure.
DEFINITION OF CRACK: evident at 0.06 GPM [0.25 LPM]
VALVE HOUSINGS: 2500 PSI [175 Bar] = Aluminum - Anodized.
5000 PSI [350 Bar] = Steel - Unplated.
OPERATING TEMPERATURE: -40° to +250° F. [-40° to +120° C.]
OPERATING MEDIA: All general purpose hydraulic fluids such as
MIL-H-5606, SAE-#10, SAE-#20, etc.
INSTALLATION: No restriction.
FILTRATION: 25 microns or better.
SEAL KIT NUMBER: SKN-1027 for buna "N".
SKV-1027 for viton.
WEIGHT: 0.46 lb [.21 kg] cartridge only.
VALVE CAVITY: #C1025, See Page 0-022.0.
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-060120-EN-00/09.2015
