GRANIT Z80 Monoblock Hydraulic Distributor | 1x Double Acting | Closed Center | 80 l/min

The GRANIT 87001377 hydraulic distributor from the Z80 series is a 4/3 way monoblock directional valve, suitable for controlling a double-acting cylinder. The center function is A-B closed with spring return, configuring a closed system. This means that in the neutral position (center), the pump flow (P) is blocked (closed system), stopping the fluid supply. The lever automatically spring-returns to the neutral position. The valve is made of cast iron and is suitable for a nominal pressure of 250 bar and a maximum flow rate of 80 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): 80.
• PN (Nominal Pressure): 250 bar.
• Nominal Operating Pressure P - N (Inlet-Outlet): 250 bar.
• Nominal Operating Pressure A - B (Working Ports): 300 bar.
• Nominal Flow Rate T (Tank): 50 bar.
• Internal Leakage: approx. 18 cm³/min at 120 bar.
• Oil Temperature: -15° C to +80°C.
• Contamination Level: 10 according to NAS1638.

Technical and Structural Data

• Part Number: 87001377.
• Orig. Ref.: 01Z80 A1 GKZ1C.
• Lever: 1.
• Version: cast iron monoblock valve.
• Connection P (Inlet, BSP): G 1/2".
• Connection T (Tank, BSP): G 3/4".
• Connection N (Inlet/Outlet, BSP): 3/4" BSP (from product description).
• Connection A-B (Working Ports, BSP): G 1/2".

Dimensions (mm)

Dimensional data for installation:

• A: 65 mm.
• B: 80 mm.
• C: 107 mm.
• D: 65 mm.