
Multi-layer diaphragm pump
Serie 409.2 ML
Operating instruction
10
www.sera-web.com
Technical modifications reserved!
TA 431
Rev.
8 en
06/2015
Tab. 02
Dimensions
All dimensions in mm !
Pump type
R
409.
2
-
11
ML
R
409.
2
-
17 M
L
R
409.
2
-
30
ML
R
409.
2
-
45
ML
R
409.
2
-
72
ML
R
409.
2
-
11
0
ML
R
409.
2
-
15
0 M
L
R
409.
2
-
220 M
L
V
a
lv
es
A
Single valves PVC
---
---
93
93
97
97
---
124
---
124
Single valves
1.4571/1.4581
---
---
---
---
---
---
127
---
127
---
Single valves
PP-FRP, PVDF-FRP
---
---
---
---
94
94
127
---
127
---
Double valves
PP-FRP, PVDF-FRP
83
83
90
90
---
---
---
---
---
---
Double valves
1.4571/1.4581
83
83
91
91
95
95
---
---
---
---
Chamber valves PVC, 1.4571
88
88
---
---
---
---
---
---
---
---
B
Single valves PVC
---
---
100
100
104
104
---
143
---
143
Single valves
1.4571/1.4581
---
---
---
---
---
---
127
---
127
---
Single valves
PP-FRP, PVDF-FRP
---
---
---
---
94
94
127
---
127
---
Double valves
PP-FRP, PVDF-FRP
83
83
90
90
---
---
---
---
---
---
Double valves
1.4571/1.4581
---
---
91
91
95
95
---
---
---
---
Chamber valves PVC, 1.4571
88
88
---
---
---
---
---
---
---
---
C
Connection thread
suction-/pressure valve
G ¾
G ¾
G ¾
G ¾
G ¾
G ¾
G1¼ G1 G1¼ G1
DN
Nominal diameter
5
5
8
8
8
8
20
15
20
15
D
Assembly pump
43
43
40
40
44
44
43
43
P
um
p bod
y
(
P
D
)
E
Centre – screw-in thread for valves (1.4571)
16
16
18
18
21
21
33
33
Centre – screw-in thread for valves
(PP, PVC, PVDF)
24
24
24
24
27
27
33
33
F
Pump body, 1.4571 (without front plate)
49
49
51
51
54
54
80
80
Pump Body, PP, PVC, PVDF (with front plate)
62
62
65
65
65
65
83
83
H
1
Pumpbody with Manometer (1.4571)
134
134
138
138
141
141
155
155
Pump body with Manometer (PVC, PP, PVDF)
134
134
138
138
141
141
155
155
H
2
Pump body with pressure switch (1.4571)
139
139
144
144
146
146
161
161
Pump body with pressure switch
(PVC, PP, PVDF)
139
139
144
144
146
146
161
161
H
3
PB with pressure switch EX-execution
(1.4571)
211
211
216
216
221
221
234
234
PB with pressure switch EX-execution
(PVC, PP, PVDF)
222
222
226
226
230
230
245
245
S
tr
ok
e
l
engt
h
adj
us
tm
ent
(
SL
A)
K
1
Blind flange for execution without
stroke length adjustment
8
8
8
8
8
8
8
8
K
2
Manual stroke length adjustment (max.)
70
70
70
70
70
70
70
70
K
3
Manual stroke length adjustment
with position indicator
110
110
110
110
110
110
110
110
K
4
Electrical actuator
240
240
240
240
240
240
240
240
K
5
Electrical actuator with PMR2
320
320
320
320
320
320
320
320
K
6
Electrical actuator Ex-execution
470
470
470
470
470
470
470
470
D
ri
v
ing
m
o
tor
(
B
C
71)
M
1
Driving motor (Standard)
225
225
225
225
225
225
225
225
N
1
120
120
120
120
120
120
120
120
M
2
Driving motor for operation with
Frequency converter (FU)
225
225
225
225
225
225
225
225
N
2
120
120
120
120
120
120
120
120
M
3
AC - Motor
175
175
175
175
175
175
175
175
N
3
100
100
100
100
100
100
100
100
M
4
EExeIIT4 - motor
200
200
200
200
200
200
200
200
N
4
100
100
100
100
100
100
100
100
Option
T
Stroke frequency transmitter
110
110
110
110
110
110
110
110
Stroke
mechanism
Amongst others, dimensions for fastening the
pump
See Fig. 04