Bosch Rexroth | ZDBT-XP8-1X315-081VV06P100N503H-A0-HIGH
ZDBT-XP8-1X/315 081VV06P100N503H-A0-HIGH
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The ZDBT-XP8-1X/315 081VV06P100N503H-A0-HIGH valve is manufactured by Bosch Rexroth for the ZDB Pressure Relief Valves series. It limits system pressure in hydraulic automation circuits. The unit has a nominal size of 6 and mounts on subplates that follow the ISO 4401-03-02-0-05 interface, allowing direct replacement within standardized manifolds. Its pressure stage is rated at 315 bar, while the maximum operating pressure reaches 350 bar for short-term peaks. The minimum adjustable setting is 3 bar, and hysteresis remains below 5 percent of the maximum setting to support stable pressure repeatability. The valve accommodates flows up to 3 liters per minute, matching pilot control duties rather than main line throughput. Sealing on the pressure and tank ports is handled by an O-ring measuring 9.25 × 1.78 mm.
Permissible fluid temperatures range from −20 to +80 °C so the valve handles cold-start and normal operating conditions. It operates with mineral oil of the HL or HLP classes according to DIN 51524 and tolerates viscosities between 15 and 380 mm²/s, a window that keeps throttling behavior consistent despite seasonal changes in fluid density. Cleanliness of the medium must reach ISO 4406 class 20/18/15 to limit erosion of the seating surfaces. The device can be installed in any position, allowing horizontal placement on compact beds or vertical mounting on machine frames without performance loss. Its mass of 2.0 kg simplifies handling during service or manifold assembly.
Technical Specifications
Fluid Cleanliness
ISO 4406 (c) 20/18/15
Fluid Temperature Range
-20 to +80 C
Hydraulic Fluid
Mineral Oil (HL, HLP) DIN 51524
Hysteresis
< 5% of max setting pressure
Installation Position
Any
Mass
2.0 kg
Max Flow
3 l/min
Max Operating Pressure (p)
350 bar
Min Setting Pressure
3 bar
Mounting Interface
ISO 4401-03-02-0-05
Nominal Size
6
O-ring (p,t)
9.25 x 1.78 mm
Pressure Stage
315 bar
Viscosity Range
15 to 380 mm²/s
1620 Old Apex Road
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