Bosch Rexroth | ZDC10XP-1X4XLBM
ZDC10XP-1X/4XLBM
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The ZDC10XP-1X/4XLBM pressure compensator belongs to the ZDC Pressure Compensators series and is manufactured by Bosch Rexroth for hydraulic automation that demands constant differential pressure. The valve is provided in a 2-way (P) version so it meters flow through the P port to maintain stability downstream. A nominal size of NG 10 matches medium-capacity manifolds, and a maximum flow of 85 l/min defines the largest volume the unit can control. Operating pressure capability reaches 350 bar on ports a, b, and p, while limits of 250 bar on port t and 150 bar on port y prevent overload on return and pilot passages. External pilot-oil supply separates control pressure from the main circuit, supporting precise modulation under varying loads. Installation uses the ISO 4401-05-05-0-05 porting pattern, allowing direct mounting on standardized sub-plates without adapter blocks.
NBR sealing equips the compensator for mineral hydraulic oils and confines fluid temperature between −20 °C and +80 °C so the elastomer maintains elasticity. Acceptable viscosity spans 15 mm²/s to 380 mm²/s, letting the valve function during cold starts and at normal operating warmth. The cleanliness class of ISO 4406 (c) 20/18/15 limits particle content to reduce spool wear and sticking. A required mounting surface finish of Rzmax 4 ensures the mating face seals correctly and avoids leakage paths. Component weight is 3.0 kg, keeping manifold assemblies light enough for manual handling. These combined limits on temperature, viscosity, cleanliness, and surface quality help the compensator hold its set differential pressure accurately over long service periods.
Technical Specifications
Cleanliness Class
ISO 4406 (c) 20/18/15
Fluid Temp Max
+80 °C (NBR)
Fluid Temp Min
-20 °C (NBR)
Max Operating Pressure (a/b/p)
350 bar
Max Pressure (t)
250 bar
Max Pressure (y)
150 bar
Maximum Flow
85 l/min
Mounting Surface Finish
Rzmax 4
Nominal Size
NG 10
Pilot Oil Supply
External
Porting Pattern
ISO 4401-05-05-0-05
Seal Material
NBR
Valve Version
2-Way (P)
Viscosity Max
380 mm2/s
Viscosity Min
15 mm2/s
Weight
3.0 kg
1620 Old Apex Road
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