GRANIT Z50 Monoblock Hydraulic Distributor | 1x Double Acting | Closed Center | 250 bar

The GRANIT 87001362 hydraulic distributor is a 4/3 way monoblock directional valve, suitable for controlling a double-acting cylinder. Its key feature is the closed system (or closed center), indicated by the version (A-B closed / spring return / closed system). In the neutral (center) position, all ports (P, A, B, T) are blocked, stopping the flow from the pump and maintaining pressure in the system, a typical requirement for closed-center circuits. The lever spring-returns to the neutral position. Made of cast iron, it is suitable for a nominal pressure of 250 bar and a maximum flow rate of 40 l/min.

Functional and Hydraulic Specifications

• Version: 4/3 way, 1 x double acting (A-B closed / spring return / closed system). This is the closed center configuration.
• Lever Function: 1 x double acting.
• Flow Rate (l/min): 40.
• PN (Nominal Pressure): 250 bar.
• Adjustment Range (Maximum Pressure): 120-250 bar.
• Nominal Operating Pressure P - N (Inlet-Outlet): 250 bar.
• Nominal Operating Pressure A - B (Working Ports): 300 bar.
• Nominal Operating Pressure T (Tank): 50 bar.
• Internal Leakage: approx. 15 cm³ /min at 120 bar.
• Oil Temperature: -15° C to +80°C.
• Contamination Level: 10 according to NAS1638.

Technical and Structural Data

• Part Number: 87001362.
• Orig. Ref.: 01Z50 A1 GKZ1C.
• Lever: 1.
• Version: cast iron monoblock valve.
• Connection P (Inlet, BSP): G 1/2".
• Connection T (Tank, BSP): G 1/2".
• Connection N (Inlet, BSP): 1/2" BSP.
• Connection A-B (Working Ports, BSP): G 3/8".

Dimensions (mm)

Dimensional data for installation:

• A: 60 mm.
• B: 80 mm.
• C: 85 mm.
• D: 60 mm.