c
2020 Sun Hydraulics 1 of 2
MODEL
YFEK
Restrictive pressure compensator assembly
CAPACITY: 120 L/min.
Restrictive pressure compensator
CONFIGURATION
X Control Standard Pilot
H Adjustment
Range
30 - 3000 psi (2 - 210 bar), 200 psi (14
bar) Standard Setting
V Seal
Material
Viton
B Primary
Cartridge
B (with LPFCL primary cartridge,
Tuneable, normally open modulating
element)
B/S Material
Designation
B/S Iron
This valve assembly consists of a normally-open restrictive style compensator on the P port and a shuttle that
senses pressure from the higher of the 2 work ports. Its purpose is to provide a relatively constant pressure drop
across the directional valve thus isolating the directional valve spool from high flow forces. This is accomplished by
throttling the supply into the P port. The constant drop creates a pressure compensated flow control out of the
directional valve.
sunhydraulics.com/model/YFEK
TECHNICAL DATA
Body Type Sandwich
Interface ISO 05 - X&Y
Capacity 120 L/min.
Body Features Meter in P
Stack Height 62 mm
Seal Plate Included (see notes) No
Operating Characteristic Restrictive
Model Weight 3.05 kg.
NOTES
Seal retainer plate is not required for this assembly.
For detailed information regarding the cartridges contained in this assembly, click on the models codes shown in the Included Components tab.
Important: Carefully consider the maximum system pressure. The pressure rating of the manifold is dependent on the manifold material, with the port
type/size a secondary consideration. Manifolds constructed of aluminum are not rated for pressures higher than 3000 psi (210 bar), regardless of the port
type/size specified.
c
2020 Sun Hydraulics 2 of 2
MODEL
YFEK
Restrictive pressure compensator assembly
CAPACITY: 120 L/min.
Continued from
previous page
(X)CONTROL
X Not Adjustable
(H)ADJUSTMENT RANGE
H 200 psi (14 bar)
D 50 psi (3,5 bar)
(V)SEAL MATERIAL
V Viton
N Buna-N
(B)
OPTION SELECTION EXAMPLE: YFEKXHVBB/S
PRIMARY CARTRIDGE
B B (with LPFC primary cartridge, Normally open, modulating element)
B B (with LPFCL primary cartridge, Tuneable, normally open modulating element)
INCLUDED COMPONENTS
Part Description Quantity
CSABXXV Cartridge 1
LPFCXHV Cartridge - Primary 1
TECHNICAL FEATURES
This assembly is normally used in a multi-station load-sense system or with a pressure compensated pump.
The pressure differential across the orifice (directional valve) varies with flow and system pressure. It is at its highest at zero flow and drops with increasing flow.
Another term for this assembly is a hydrostat.
PRIMARY CARTRIDGE CONFIGURATION
