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Bosch Rexroth | LC40B20D7XV

LC40B20D7X/V

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The Bosch Rexroth LC40B20D7X/V is a two-way cartridge valve from the LC 2 Way Cartridge Valves series. This valve features a nominal size of 40 and is designed with a poppet version that includes a damping nose. It supports a maximum operating pressure of 420 bar and uses FKM as the seal material. Compatible hydraulic fluids include mineral oil types HL and HLP, as well as bio-fluids such as HETG, HEPG, and HEES. The control area A3 is 107 percent of A1 and the area ratio A1 to a2 is 14.3 to 1. The cartridge valve is suitable for operating fluid temperatures ranging from -20 to +80 degrees Celsius and supports a viscosity range of 2.8 to 500 mm²/s. It has a cleanliness class of ISO 4406 (c) 20/18/15 and adheres to the ISO 7368 mounting cavity standard. The direction of flow can be A to B or B to A, and the cracking pressure is set at 2 bar.

Technical Specifications

Annulus Area A2
7% of A1

Area Ratio A1:a2
14.3:1 (B)

Bio-fluid Compatibility
HETG, HEPG, HEES

Cleanliness Class
ISO 4406 (c) 20/18/15

Control Area A3
107% of A1

Cracking Pressure
2 bar

Direction Of Flow
A→B or B→A

Fluid Temperature Range
−20 to +80 °C

Hydraulic Fluid
Mineral Oil (HL, HLP)

Maximum Operating Pressure
420 bar

Mounting Cavity Standard
ISO 7368

Nominal Size
40

Poppet Version
With Damping Nose (D)

Seal Material
FKM (V)

Viscosity Range
2.8 to 500 mm²/s

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