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2019 Sun Hydraulics 1 of 2
MODEL
LRJA
Normally closed, modulating element with pilot source from port 1
SERIES 4 / CAPACITY: 480 L/min. / CAVITY: T-19A
(X)CONTROL
X Not Adjustable
(H)DIFFERENTIAL PRESSURE
H 200 psi (14 bar)
A 12 psi
B 20 psi (1,5 bar)
C 30 psi (2 bar)
D 50 psi (3,5 bar)
(N)SEAL MATERIAL
N Buna-N
V Viton
MATERIAL/COATING
Standard Material/Coating
/AP Stainless Steel, Passivated
NOTE: DATA MAY VARY BY CONFIGURATION. SEE CONFIGURATION SECTION.
Normally closed modulating elements with an internal orifice between port 1 and port 3 can be used as a main-
stage relief valve. The valve can be controlled remotely using a pilot relief or pilot solenoid valve.
TECHNICAL DATA
Cavity T-19A
Series 4
Capacity 480 L/min.
Maximum Operating Pressure 350 bar
Control Pilot Flow 0,25 - 0,50 L/min.
Control Orifice Diameter 0,53 mm
Valve Hex Size 41,3 mm
Valve Installation Torque 474 - 508 Nm
Seal kit - Cartridge Buna: 990019007
Seal kit - Cartridge Polyurethane: 990019002
Seal kit - Cartridge Viton: 990019006
Model Weight 1.16 kg.
sunhydraulics.com/model/
LRJA
Model Code Example: LRJAXHNCONFIGURATION OPTIONS
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2019 Sun Hydraulics 2 of 2
TECHNICAL FEATURES
A tuning adjustment (models configured with an L control) is available to vary the pressure drop across the compensator to increase/decrease flow within +/-25% of
setting.
All ports will accept 5000 psi (350 bar).
Corrosion resistant cartridge valves are intended for use in corrosive environments and are identified by the model code suffix /AP for external stainless steel
components, or /LH for external zinc-nickel plated components. See the CONFIGURATION section for all options. For further details, please see the Materials of
Construction page located under TECH RESOURCES.
Incorporates the Sun floating style construction to minimize the possibility of internal parts binding due to excessive installation torque and/or cavity/cartridge
machining variations.
RELATED MODELS
LRJA8 Normally closed, modulating element with integral T-8A control cavity and pilot source from port 1
LRJAL Tuneable, normally closed, modulating element with pilot source from port 1
