ICBBA-LHN Counterbalance Valve

ICBBA-LHN Cylinder 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 ICBBA-LHN Counterbalance Valve

Operating Pressure Loading pressure max. 215 bar when setting pressure at 280bar

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 3:1, 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-11A; See page 309

Materials

Cartridge Weight: 0.2 kg. (0.44 lbs.); Steel with hardened work surfaces.

Zinc-plated exposed surfaces.

Seal: O-rings and back-up rings.

Standard Ported Body Weight: 0.16 kg. (0.35 lbs.); Anodized high-strength 6061

T6 aluminum alloy, rated to 240 bar (3500 psi).

Ductile iron and steel bodies available; dimensions may differ.

Consult Inno.

Standard Coil Weight: 0.11 kg. (0.25 lbs.); Unitized thermoplastic encapsulated,

Class H high temperature magnetwire.

E-Coil Weight: 0.14 kg. (0.3 lbs.); Perfect wound, fully encapsulated with rugged

external metal shell; Rated up to IP69K with integral connectors.

Features of ICBBA-LHN Counterbalance Cylinder 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 ICBBA-LHN Counterbalance Valve

One-way function: The ICBBA-LHN allows the flflow from ② to ①, and blocks flflow from ① to ② when the pressure of ① is lower than the check spring setting. Relief valve function: The cartridge relieves flflow from ① to ② when the pressure of ①exceeds 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.

If you want to know more types of china hydraulic valve, please visit our website.