Pressure pilot control cover
Bosch Rexroth LFA40DB2-7X/025 manual pressure pilot control cover
Model: LFA40DB2-7X/025 · Bosch Rexroth
Pressure stage upper endpoint (bar)25
Seal materialNBR
LFA40DB2-7X/025, manufacturer material number R900938081, is a Bosch Rexroth size 40 manual pressure pilot control cover. It is an individual control cover with an integrated manually adjustable pressure pilot, supplied separately from the main logic insert. The selected insert and hydraulic circuit determine whether the complete arrangement performs pressure relief or normally-open pressure reduction.
Adjustment type 2 is a hexagon adjustment with protective cap. The 25 bar pressure stage is the upper adjustment endpoint, not an individual factory setting. The minimum usable pressure is flow-dependent. The specified seals are NBR.
The permissible system pressure must be established from the cover, integrated pressure pilot, selected unloading hardware, main insert and manifold limits. An insert pressure rating must not be applied to the whole assembly. Standard reference orifices are shown in the manufacturer drawing; operational tuning and circuit connections require the applicable installation conditions.
Technical reference: manufacturer-authored RE21050 compiled edition 2003-02, containing retained earlier page revisions. The dated reference identifies applicable component design data and does not establish current stock or an individual assembly setting.
Representative manufacturer LFA DB cover drawing for sizes 16–32; the selected nominal size determines its dimensions. The image is a smaller-size family illustration; use the selected original drawing for size 40 geometry.
| Technical specifications | |
| Component type | Pressure pilot control cover |
| Pressure stage upper endpoint (bar) | 25 |
| Series | 7X |
| Adjustment method | Hexagon adjustment with protective cap |
| Assembly rating conditions | Cover, integrated pilot, optional unloading valve and manifold have separate limits; the main insert rating is not a complete assembly rating. |
| Control code | DB |
| Factory model code | LFA40DB2-7X/025 |
| Manufacturer | Bosch Rexroth |
| Manufacturer part number | R900938081 |
| Pilot control scope | Integrated manual pressure pilot; main insert separately selected |
| Pilot pressure adjustment | Manual |
| Product family | LFA DB |
| Unloading valve interface | No directional unloading valve interface |
| Nominal size | 40 |
| Technical specifications | |
| Seal material | NBR |