(L)CONTROL
L Standard Screw Adjustment
C Tamper Resistant - Factory Set
R Lockwired Screw Adjustment
(J)FUNCTIONAL SETTING RANGE
J 2000 - 5000 psi w/25 psi Check (140 -
350 bar w/ 1,7 bar Check), 3000 psi
(210 bar) Standard Setting
B 400 - 1500 psi w/4 psi Check (28 - 105
bar w/ 0,3 bar Check), 1000 psi (70
bar) Standard Setting
C 2000 - 5000 psi w/4 psi Check (140 -
350 bar w/ 0,3 bar Check), 3000 psi
(210 bar) Standard Setting
D 1000 - 2500 psi w/4 psi Check (70 -
175 bar w/ 0,3 bar Check), 2000 psi
(140 bar) Standard Setting
K 1000 - 2500 psi w/25 psi Check (70 -
175 bar w/ 1,7 bar Check), 2000 psi
(140 bar) Standard Setting
(N)SEAL MATERIAL
N Buna-N
V Viton
MATERIAL/COATING
Standard Material/Coating
/LH Mild Steel, Zinc-Nickel
TECHNICAL FEATURES
Counterbalance valves should be set at least 1.3 times the maximum load induced pressure.
Turn adjustment clockwise to decrease setting and release load.
Full clockwise setting is less than 200 psi (14 bar).
Backpressure at port 2 adds to the effective relief setting at a ratio of 1 plus the pilot ratio times the backpressure.
Reseat exceeds 85% of set pressure when the valve is standard set. Settings lower than the standard set pressure may result in lower reseat percentages.
Sun counterbalance cartridges can be installed directly into a cavity machined in an actuator housing for added protection and improved stiffness in the circuit.
Two check valve cracking pressures are available. Use the 25 psi (1,7 bar) check unless actuator cavitation is a concern.
This valve uses orifices to lower the pilot ratio and therefore will pass up to 40 in³/min./1000 psi (0,7 L/min./70 bar) between port 2 and port 3. This is a
consideration in master-slave circuits and in the leak testing of valve-cylinder assemblies.
All 3-port counterbalance, load control, and pilot-to-open check cartridges are physically interchangeable (i.e. same flow path, same cavity for a given frame size).
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.
PERFORMANCE CURVES
RELATED MODELS
CBEWX Fixed setting, 1:1 pilot ratio, standard capacity counterbalance valve
Model Code Example: CBEWLJNCONFIGURATION OPTIONS