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The ZDB10VP2-4X/50 pressure relief valve belongs to the ZDB Pressure Relief Valves series from Bosch Rexroth and limits system pressure in hydraulic automation circuits by routing flow from port P to the tank at port TA when the threshold is reached. This version is identified as component series 4X and fits nominal size 10 manifolds. It tolerates a maximum operating pressure of 315 bar, while its pressure stage is set to 50 bar for medium-pressure loops. A maximum flow of 100 l/min permits adequate volume handling for pumps of similar capacity. The sandwich plate connection matches the ISO 4401-05-04-0-05 mounting interface so it can be stacked beneath D05 directional valves, and the relief function is configured as P–TA for direct line protection.
Adjustment uses a sleeve with a hex head and protective cap that lets maintenance staff fine-tune settings without removing the stack, and the unit is classified as adjustment type 2 within the series. Required oil cleanliness is ISO 4406 20/18/15, so upstream filtration must keep particulate counts within that level. NBR sealing materials are fitted to resist standard mineral hydraulic fluids at the stated pressure. The valve can be installed in any position, giving flexibility in compact manifolds. Porting follows NFPA code T3.5.1 R2-2002 D05 to ensure interchangeability with North American subplates. These construction details combine to provide dependable pressure control in hydraulic machinery.
Adjustment Element
Sleeve With Hex And Protective Cap
Adjustment Type
2
Cleanliness Class
ISO 4406 20/18/15
Component Series
4X
Connection Type
Sandwich Plate
Installation Position
Any
Max Flow
100 l/min
Max Operating Pressure
315 bar
Mounting Interface (iso)
ISO 4401-05-04-0-05
Nfpa Porting Code
T3.5.1 R2-2002 D05
Nominal Size
10
Pressure Stage
50 bar
Relief Function
P–TA
Seal Material
NBR
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