ICBGG-LJN Counterbalance Valve

ICBGG-LJN Counterbalance Valve
A screw-in, cartridge-style, three-port, poppet-type, counterbalance valve controls the oil flow back to the internal spring chamber.

Specifications of ICBGG-LJN Counterbalance Valves with Flangeable Body
Operating Pressure Loading pressure max. 270 bar when setting pressure at 350 bar
Flow See Performance Chart
Internal Leakage Max. 0.4 ml/min. at Reseat
Reseat pressure > 85% of setting pressure
Factory pressure settings established at flow of 32.8 ml/min
Pilot Ratio 4.5:1, max. setting should be equal to 1.3 times the load pressure
Temperature -40 to 120®C
Fluids Mineral-based or synthetics with lubricating properties at viscosities of
7.4 to 420 cSt (50 to 2000 ssu)
Installation No restrictions
Cavity IT-17A; See page 309

Materials
Cartridge Weight: 0.70 kg. (1.54 lbs.); Steel with hardened work surfaces.
Zinc-plated exposed surfaces.
Seal: O-rings and back-up rings.

Features of ICBGG-LJN Counterbalance Valve
1. Max. setting pressure is at least 1.3 times max. load-induced pressure.
2. Backpressure at port ② should be in the setting range.
3. Reseat pressure exceeds 85% of set pressure.

Operation Symbol of ICBGG-LJN Counterbalance Valve
One-Way Function

The ICBGG-LJN allows the flow from ② to ①, and blocks flow from ① to ② when the pressure of ① is lower than the check spring setting.

Relief Valve Function

The cartridge relieves flow from ① to ② when the pressure of ① exceeds the check spring setting.

Pilot-Assisted Restriction Function

When there is pilot-assisted pressure at port ③, it could change the opening degree from ① to ② to achieve the restriction function.

INNO China Hydraulic valves are widely used in hydraulic systems to control the flow, pressure, and direction of hydraulic fluid. They are essential components in various industries, including construction, agriculture, oil and gas, aerospace, and automotive. Hydraulic valves are used in applications such as cranes, excavators, bulldozers, tractors, aircraft, and trucks. They help to regulate the movement of machinery, prevent damage from excessive pressure or flow, and improve overall system efficiency.