c
2025 Sun Hydraulics 1 of 2
MODEL
LRHA
Normally closed, modulating element with pilot source from port 1
SERIES 3 / CAPACITY: 240 L/min. / CAVITY: T-17A
(X)CONTROL
X Not Adjustable
E External 4-SAE Port, Port 3 blocked
L Tuning Adjustment
(H)BIAS PRESSURE
H 200 psi (14 bar)
D 50 psi (3,5 bar)
F 100 psi (7 bar)
G 150 psi (10,5 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-17A
Series 3
Capacity 240 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 31,8 mm
Valve Installation Torque 203 - 217 Nm
Seal kit - Cartridge Buna: 990017007
Seal kit - Cartridge Polyurethane: 990017002
Seal kit - Cartridge Viton: 990017006
Model Weight 0.50 kg.
sunhydraulics.com/model/
LRHA
Model Code Example: LRHAXHNCONFIGURATION OPTIONS
c
2025 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.
