Introduction
12
25 -
100
150 -
600
4000
Size
End cap design
5
Spring design
6
Pinion bottom /
Insert design
2
950 -
2500
SR
Maximum 2
loose springs
Maximum 12
spring cartridges
Maximum 6
loose springs
Left
Right
Left
Right
Left
Right
Left
Right
DA
SR
DA
SR
DA
SR
DA
SR
DA
Maximum 12
spring cartridges
Maximum 6
loose springs
or
Left
Right
Notes
1. Top auxilliaries and Solenoid interface (VDI/VDE 3845; NAMUR) for size 25 to 4000.
Size 12 has propriatary interface for top auxilliaries and solenoid mounting.
2. Valve interface availalable according ISO5211 or DIN 3337. Actuator size 12 is fitted with a parallel or
diagonal square. Actuator sizes 25 to 2500 can be fitted with drive inserts with various inner shapes.
Actuator size 4000 is fitted with a double square; parallel and diagonal.
3. Spring-Return actuators: - with springs
4. Double-Acting actuators: - no springs
5. Actuator sizes 25 to 100 have high end caps for double-acting and spring-return models. Actuator sizes
12 and 150 to 4000 have low end caps for double-acting models and high end caps for spring-return
models.
6. Actuator size 12 is fitted with a maximum of 2 loose springs. Actuator sizes 25 to 600 are fitted with a
maximum of 12 spring cartridges. Actuator sizes 950 to 4000 are fitted with a maximum of 6 loose
springs.
2
1
3
4
4
September 2017
Installation, Operation and Maintenance Manual
DOC.IOM.EF.EN Rev. 7
Section 2: Introduction
Figure 1
Identification
