REXROTH LFA 40 WEA-71/ R900931581

Rexroth LFA 40 WEA-71/ Logic Cover Assembly

Description

The product you are viewing is a Rexroth LFA 40 WEA-71/, a hydraulic logic cover assembly designed for size 40 (NG40) cartridge valves. This component is a crucial part of modular hydraulic systems, providing a cover for valve cavities according to ISO 7368. The ‘WEA’ designation indicates it includes an integrated shuttle valve and a pressure gauge connection port, enhancing system monitoring and control capabilities. Manufactured in Germany, this part embodies the reliability and precision expected from Bosch Rexroth.

Specifications

• Manufacturer: Rexroth
• Type: LFA 40 WEA-71/
• Material Number (MNR): R900931581
• Component Type: Logic Cover Assembly
• Size: NG40
• Series: 7X
• Maximum Operating Pressure: 420 bar
• Seal Material: NBR (Standard)

Label Info

• MNR: R900931581
• FD: 41708
• Type: LFA 40 WEA-71/
• S/N: 124062412

Application

This logic cover is used in various industrial hydraulic applications, including press controls, machine tools, and heavy machinery, where modular cartridge valve systems are employed for flow, pressure, and directional control.

Country of Origin

Made in Germany.

CO2 Impact

By choosing this reconditioned component over a new one, you contribute to a significant environmental saving, avoiding the emission of approximately 16.0 kg of CO2, which is involved in the production of a new unit. This is comparable to the CO2 absorption of a mature tree over several years.

Availability

Available from stock for immediate dispatch. This item is a reliable, tested component ready for integration into your system. Order now from spareparts2day for expert support and fast delivery.

FAQ

What is the maximum operating pressure for this LFA 40 WEA-71/ logic cover?

The LFA..-7X series logic covers are typically rated for a maximum operating pressure of 420 bar (6090 PSI), but it is crucial to consult the official Rexroth datasheet for this specific model to confirm pressure ratings for your application.

Can this logic cover be used with any size 40 cartridge valve?

This cover is designed for standard ISO 7368 cavities for size 40 (NG40) cartridge valves. However, compatibility should always be verified, especially concerning the control functions provided by the WEA-type cover (shuttle valve and gauge port) and the specific requirements of the cartridge valve and circuit.

What type of hydraulic fluid is compatible with the standard seals in this component?

The standard version of this component typically comes with NBR seals, which are compatible with mineral oils (HL, HLP) according to DIN 51524. For use with synthetic fluids like HFC or HFD, a version with FKM (Viton) seals would be required. Always check the component’s specifications or markings to confirm the seal material.

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Last Update: Friday, March 13, 2026