Key
Item Components
3
Compressor
6
Membrane plate
9
Washer
10
Actuator top
12
Bolt
13
Washer
14
Actuator membrane
15
Actuator spindle
16
Actuator base
17
Bush
21
Hexagon nut
22
Sealing washer
27
O-ring (only for diaphragm size 50)
Distance piece
28
(only for diaphragm sizes 40 and 50)
29
Protective cap
30
Dowel pin
31
Adapter
32
Compression spring
44
O-ring
45
Indicator spindle
46
Transparent cap
47
Washer
SA1
Optical position indicator
SA2
Protective cap
R690
3 Spare parts kits
3.1 Spare parts kit SAK
Item
Pieces
14
1
17
1
21
1
22
2
1 (MG40)
27
2 (MG50)
28
1
44
1
4 Order data
4.1 Order data - Spare parts kit SAK
1 Type
GEMÜ R690
2 Diaphragm size
Diaphragm size 25 (DN 15 / DN 20 / DN 25)
Diaphragm size 40 (DN 32 / DN 40)
Diaphragm size 50 (DN 50)
3 Kit
Actuator wearing parts kit
4 Control function
Normally open (NO)
5 Actuator size
Diaphragm size 25 (DN 15 / DN 20 / DN 25)
Diaphragm size 40 (DN 32 / DN 40)
Diaphragm size 50 (DN 50)
6 K number (optional)
Medium wetted area cleaned to ensure suitability for
paint applications, parts sealed in plastic bag, warranty
only valid when treated with proper care!
Order example
1 (Code)
2 (Code)
3 (Code)
4 (Code)
5 (Code)
6 (Code)
8 / 12
Components
Actuator membrane
Bush
(for diaphragm size 50: 2 bushes)
Hexagon nut
Sealing washer
O-ring (item no. 654) (only for
diaphragm sizes 40 and 50)
Distance piece (only for diaphragm
sizes 40 and 50)
O-ring (item no. 16414)
R690 25 SAK
1
R690
25
SAK
1
Code
R690
Code
25
40
50
Code
SAK
Code
2
Code
FDN
HDN
KDN
Code
0101
FDN 0101
FDN
0101