(L)CONTROL
L Standard Screw Adjustment
C Tamper Resistant - Factory Set
(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
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.
Restrictive valves have no relief capacity other than as a thermal relief.
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.
This valve does not have positive seals on the pilot section and will pass between 2 and 20 in³/min./1000 psi (0,03 and 0,3 L/min./70 bar) between port 2 and port 3,
depending on load pressure. This is a consideration in master-slave circuits and in the leak testing of valve-cylinder assemblies.
Lower pilot ratios (pilot gain) promote machine stability.
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.
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.
RELATED MODELS
CBBHX Fixed setting, 10:1 pilot ratio, restrictive counterbalance valve
Model Code Example: CBBHLJNCONFIGURATION OPTIONS