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Bosch Rexroth | LC40B20D7X

LC40B20D7X/

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The Bosch Rexroth LC40B20D7X/ is a cartridge valve from the LC 2 Way Cartridge Valves series. This model has a nominal size of 40 and is designed with a damping nose poppet form. The maximum operating pressure for this valve reaches 420 bar. It is fitted with NBR seal material and has a seat area of 15.55 square centimeters. The annulus area is measured at 1.07 square centimeters, while the spring chamber area totals 16.62 square centimeters. The product features an area ratio of 14.3 to 1, and the pilot volume is 31.6 cubic centimeters. The LC40B20D7X/ is intended to be mounted in cavities meeting ISO 7368 standards and maintains a cleanliness class of ISO 4406 20/18/15.

Technical Specifications

A3/a1 Ratio
107%

Annulus Area A2
1.07 cm²

Annulus Area Percentage
7%

Area Ratio (a1:a2)
14.3:1

Cartridge Weight
1.9 kg

Cleanliness Class
ISO 4406 20/18/15

Cracking Pressure A-b (b20)
1.44 bar

Max Operating Pressure
420 bar

Mounting Cavity Standard
ISO 7368

Nominal Size
40

Pilot Volume (lc.d)
31.6 cm³

Poppet Form
D (Damping Nose)

Seal Material
NBR

Seat Area A1
15.55 cm²

Spool Stroke (lc.d)
1.9 cm

Spring Chamber Area A3
16.62 cm²

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