HDR - Directional Control Valve
Description
The HDR valves are directional control valves hydraulic actuated, with self-reversing spool with porting pattern compliant to ISO 4401-03 and ISO 4401-05.
These valves reverse the flow direction when the flowrate stops in A or B line (i.e., when a cylinder reaches the end stroke). The reversing process is independent of the working lines pressure.
These valves are supplied with a zinc-nickel plating making them the perfect choice for mobile and environmental applications that require better protection. Salt spray resistance up to 600 h (test according to UNI EN ISO 9227 and UNI EN ISO 10289 tests and standards).
Key Features - HDR
• ISO 4401-3 (D03) or ISO 4401-05 (D05) valve mounting pattern.
• Zinc-nickel plating standard


