ISO 5781 is an international standard on hydraulic fluid power that discusses mounting surfaces for pressure-reducing valves, sequence valves, unloading valves, throttle valves and check valves to ensure interchangeability.
ISO 5781 specifies the dimensions and other data relating to surfaces on which hydraulic pressure-reducing valves, sequence valves, unloading valves, throttle valves and check valves are mounted to ensure interchangeability.
ISO 5781 applies to mounting surfaces for hydraulic pressure-reducing valves, sequence valves, unloading valves, throttle valves and check valves, which represent current practice; they are generally applicable to industrial equipment.
ISO 5781 on the mounting surfaces of Hydraulic fluid power systems is relevant to:
In hydraulic fluid power systems, power is transmitted and controlled through a liquid under pressure circulating within an enclosed circuit. The most typical components found in such systems are hydraulic valves.
ISO 5781 assists you by providing the appropriate dimensions and related data for mounting surfaces for hydraulic pressure-reducing valves, sequence valves, unloading valves, check valves, throttle valves.
ISO 5781 also provides mounting surface dimensions for pressure-reducing valves, sequence valves, unloading valves, throttle valves and check valves with main ports of 4,5 mm maximum diameter, 7,5 mm maximum diameter, 14,7 mm maximum diameter, 23,4 mm maximum diameter, and 32 mm maximum diameter.
With compliance and obedience to ISO 5781, you can enhance the efficacy of mounting surfaces.
ISO 5781:2016