I don’t know what specific classification of actuators you want to know. Butterfly valves and actuators are generally installed with flanges, and the valve shaft is connected with splines or flat keys through a machined coupling.
The classification of specific actuators
is for your reference: 1. Basic concepts of actuators
What are the three major categories of actuators according to their power energy forms?
They are pneumatic, electric and hydraulic.
Actuators can be divided into several categories according to the form of output displacement
Three major categories: multi-turn, angular stroke, and straight stroke. Arms can also be added.
It can be divided into several models according to the host computer signal control method
Switch type, regulating type, fieldbus type
Divided according to the mechanical structure composition
Basic execution unit
,
Gain unit,
Intelligent unit
7. Distinguished according to usage place and environment. auma actuators can be divided into
ordinary type
explosion-proof type
explosion-proof type
8. Distinguish auma according to the ambient temperature of use The actuator is also available
Standard type (-25℃......80℃)
Low temperature type (-40℃......60℃)
Ultra-low temperature Type (-60℃... 60℃)
High temperature (-0℃...... 120℃)
9. According to the sealing protection level, auma actuators can be Divided into
ip67: sink up to 1 meter underwater, work for 30 minutes
ip68; sink up to 6 meters underwater, place continuously for 72 hours, and operate underwater for 10 Times
10. According to the anti-corrosion environmental protection level, auma actuators can be divided into categories
kn: with high-quality coating, suitable for outdoor environments with slightly corrosive atmosphere
kn p>
ks: Suitable for corrosive environments with moderate pollution
kx: Suitable for highly corrosive environments with high pollution and high humidity
11 , according to load type, auma actuators can be divided into
s4-25
s4-50
s5-
12, The explosion-proof level is divided into multiple levels
exb or exc
Intrinsic safety type
Increased safety type
Explosion-proof type