ARI Armaturen PREDU 700 EN - Manual (Page 5)

Rev. 0040701000 1714 Page 2-5
Operating and installation instructions
PREDU
®
4.3 Diagram
4.3.1 Parts
Refer to the data sheet for information about materials with designations and figure
numbers.
Fig. 1
Pos. Designation Pos. Designation
1 Body 19 Screw
2 Screwed seat 20 Thread pin
3 Stud 21 Guide bush
4 Gasket 22 Guide coupling
5 Bush housing 23 Cylindrical balls
5.1 Guide bush 24 Securing wire
6 Gasket 25 Spring
8 Balanced bellows unit 26 Spring plate
9 Plug unit 27 Axial bearing
11 Head 28 Pressure plate
12 Bonnet closed 29 Pin
14 Hexagon nut 30 Lock nut
15 Gasket 31 DMA-Pneumatic actuator
16 Sealing bellows unit 31.6 Rolling diaphragm
17 Adjusting plate 31.8 Collar nut
18 Head
Control line connection
Plug DN 15 - 32
Bellows DN 15 - 40
Plug DN 40 - 150