2.3 Attachment to rotary
actuators
The positioner can also be attached to rotary
actuators according to VDI/VDE 3845 when
the mounting kits and accessories listed in
Table 7 are used.
The rotary motion of these actuators is con
-
verted into a linear motion required by the
pneumatic control unit of the positioner us
-
ing the cam disk of the actuator shaft and a
cam follower roll on the positioner lever.
EB 8355-1 EN 19
Attachment to control valve
Table 7 · Complete mounting parts, including range spring 2, but excluding the cam disk Order no.
Attachment acc. to VDI/VDE 3845, level 1 1400-8815
SAMSON Type 3278 Actuator 160 cm² 1400-7103
VETEC Type S 320 cm² 1400-7104
VETEC Type R R 100 to R 250 1400-7117
Attachment to Masoneilan actuators Camflex I, DN 25 to 100 1400-7118
Camflex I, DN 125 to 250 1400-7119
Camflex II 1400-7120
Range spring required Order no.
Standard operation of reference variable, range spring 2 (4.5 coils) 1400-6443
Split-range operation, range spring 1 (9.5 coils, installed as standard) 1400-6442
Cam disk with accessories Order no.
Linear basic characteristic
3)
(0050-0072), op. angle 0 to 70°, also for Type 3310 1400-6664
Equal percentage basic characteristic
3
(0050-0073), opening angle 0 to 90° 1400-6665
Linear
1)
(0050-0080), op. angle 0 to 70°, for control butterfly valves 1400-6774
Equal percentage
2)
(0050-0081), op. angle 0 to 70°, for control butterfly valves 1400-6775
Linear
1)
(0050-0074, VETEC), opening angle 0 to 75° 1400-6666
Equal percentage
2)
(0050-0075, VETEC), opening angle 0 to 75° 1400-6667
Linear
1)
(0059-0007, Camflex) set to between 0 and 55° 1400-6637
Equal percentage
2)
(0059-0008, Camflex) set to between 0 and 55° 1400-6638
1)
Linearizes the flow characteristic
2)
Creates an equal percentage flow characteristic
3)
Based on opening angle
Accessories Order no.
Pressure gauge build-on block G ¼ 1400-7458
¼ NPT 1400-7459
Pressure gauge kit St. steel/Brass 1400-6950
St. steel/St. steel 1400-6951
Filter check valve, replaces the vent plug and increases the degree of protection to IP 65 1790-7408
Assortment of spare parts including seals and diaphragms 1400-9895
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