BS ISO 5781:2016

This standard BS ISO 5781:2016 Hydraulic fluid power. Pressure-reducing valves, sequence valves, unloading valves, throttle valves and check valves. Mounting surfaces is classified in these ICS categories:

• 23.100.50 Control components

This International Standard 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 in order to ensure interchangeability.

It 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.