Self-acting Control Valves

Self-acting Control Valves –

Guarantor of Safety in Plant and Machinery Operation


Industrial valves are vital components of plants and machines in that they perform necessary regulating and control tasks. When plants are planned and designed, their various elements are not considered in complete isolation from one another, but are instead selected to complement each other in their intended purpose. Therefore, the optimal valve selection is particularly important.


Self-acting control valves have special advantages with regards to the smooth interaction of all plant components. Industrial valves without external energy supply are predominantly a guarantor of safety. A power failure, for example, has no impact on their function. The centuries-proven functional principle of control valves without an external energy supply also stands for the quick response behaviour of this valve type. In addition, low assembly and maintenance costs as wel l as the long operational lifespan of the valves, if properly selected, offer greater cost advantages in plant operation.


 Schema selbsttätige Regelarmaturen  Schema nicht selbsttätige Regelarmaturen
Schema "self-acting control valves"          Schema "control valves with external energy"


Aspect No. 1 - Safety

Aspect No. 2 - Cost Benefits

» Proper functioning, even in the event of a power failure
» Proven functionality based on more than one hundred years of experience
» No risk regarding to maloperation
» Quick response behaviour of self-acting control valves
» Insusceptibility to computer viruses
» Low assembly and maintenance costs
» No external energy supply required
» Long operational lifespan with the proper selection of the valve

Aspect No. 3 - Assambly and Operation

Aspect No. 4 - Sustainability

» Easy installation of the valves
» Low net weight and compact design
» Valves can be operated even with poor infrastructure
» No cabling / networking or updates required
» Particularly sturdy and maintenance-friendly
» Resource-saving thanks to independence from external energy
» Long operational lifespan with the proper selection of the valve
» Recyclability of the used materials

Advantages and Disadvantages of Self-acting Control Valves




» Less components
» Faster installation
» Less departments involved
» Less probability of errors
» Higher operational safety
» More time and efforts required for changing the nominal value

Weiterführende Informationen

The Mankenberg Order Service

New - Guidebook

guidebook "Self-acting Control Valves"