What is BS EN ISO 22109 about?
BS EN ISO 22109 discusses industrial valves. BS EN ISO 22109 provides basic requirements for gearboxes to operate industrial valves for manual and automated on/off and modulating duties. This includes manual override gearboxes. BS EN ISO 22109 includes guidelines for classification, design and methods for conformity assessment.
BS EN ISO 22109 specifies three kinds of operation:
- Manual
- Automated
- Manual override
Note 1: BS EN ISO 22109 does not cover gear systems which are an integral part of the design of valves and subsea gearboxes.
Who is BS EN ISO 22109 for?
BS EN ISO 22109 on gearbox for valves is useful for:
- Valve manufacturers
- Design engineers
- Research and development facilities
- Industrial valve distributors
Why should you use BS EN ISO 22109?
Industrial valves are mechanical devices that open, close, or partially obstruct passageways to regulate the flow of liquid or gas within a system. BS EN ISO 22109 discusses a gearbox for valves that is an actuator that produces a mechanical advantage through a series of gears resulting in reduced input torque to operate a valve. Gearboxes can be driven via a manual handwheel or electric multiturn actuator.
BS EN ISO 22109 specifies three kinds of operations. Manual, which is a gearbox designed for manual operation only, typically this has only one input, normally by a handwheel. Automated gearbox designed for automated operation, typically this has only one input, normally by an actuator. Manual override gearbox designed for overriding automated operation, typically this has two inputs. The primary input is normally an actuator. The secondary input is normally by a handwheel. The secondary input is normally disengaged when the gearbox is being used in automated mode and is engaged when the manual operation is required, for example, on the loss of power.
Using BS EN ISO 22109, you understand the requirements for different types of gearboxes for industrial valves.