1. Turn the upstream one-way flow control valve of the semi-rotary drive and inter-
mediate position completely closed and open it back up one rotation.
2. Pressurize the system and the product.
3. Start a test run with low swivel frequency.
4. Turn all one-way flow control valves open one additional rotation until the de-
sired speed of the end position and intermediate position is reached. This can
be the case at different times.
6
Operation
Note
The intermediate-position module can be destroyed if it runs against an unpres-
surised chamber.
• Make sure that the chamber from the previous operating status is pressurized
at the semi-rotary drive. Only when the valves are reversed simultaneously is
an air cushion present in the chamber, which makes the function of the ex-
haust air flow control valve possible.
7
Technical data
Size
16
20
25
32
35
40
50
Mass moment of inertia (swivelling into intermediate position)
P (min.)
[kgcm
2
]
0
0
0
0
–
P (max.)
[kgcm
2
]
150
300
400
500
–
Y9/Y12 (min.)
[kgcm
2
]
15
40
100
100
500
1000
2000
Y9/Y12 (max.)
[kgcm
2
]
500
900
1500
8000
15000
23000
40000
Max. perm. swivel time
(
www.festo.com/catalogue)
Pneumatic port
M5
G1/8
Operating pressure range
P
[bar]
4 … 8
–
Y9/Y12
[bar]
2 … 10
Swivel angle
Intermediate position
[°]
90 ±10
End positions
[°]
0 … 80; 100 … 180
Materials
Housing, cover
Anodised aluminium
Dampener,
Steel, NBR
Sleeves
Stainless steel
Weight (total load)
P
[kg]
1.10
1.47
2.35
5.0
–
–
–
Y9
[kg]
1.12
1.53
2.41
5.28
8.51
10.52
19.12
Fig. 12
