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Les langues disponibles
*DN200-250
For the dismanthing, two
outlet m10 threadings are
provided on the seats.
*** Maximum torque for tightening bolts of the backflow preventer cover
NOMENCLATURE AND REfERENCEs (spare parts)
DEsCRipTiON
Draining valve assembly
upstream valve
Downstream valve
Draining valve seat
Draining valve seat and cover
Draining valve head
Discharge valve
Draining valve head seal
membrane
outlet drain holder
spare parts kit
149B3096**
149B3486
149B3097
149B3098
149B3400
* Flanges external diameter : 395 mm
149B3401
** Old type
149B3402
DN60-65
iTEMs
n° of serie
J 01000
A
453097
8
153097
11
353097
5
753097
15
653097
14
953097
7
853097
22
9150
23
25T336208
2
253486
a.8.11.5.15
20
GB
DRaInInG ValVE assEmblY a
NOMENCLATURE
1
Casing
2
outlet drain holder.
3
Hex head screw
4
union nut
5
Draining valve seat
6
Discharge valve spring
7
Discharge valve
8
upstream check valve
9
Retainer
10
Draining valve stem
11
Downstream check valve
12
membrane disc
13
safety seal
14
Draining valve head
15
Draining valve seat and cover
16
Cover
17
Test cock chain
18
protective head
19
Eye bolt
20
screw
21
Test cock m 1/2" Gas
22
Draining valve head seal
23
membrane
A
B
Ref.
DN
mm
mm
60-65
200
420
60-65
180
356
80
200
440
100
255
530
150
310
630
200
390
763
250
390*
763
REfERENCEs fOR BA4760
ND60-65
DN80
n° of serie
n° of serie
n° of serie
I 01000
K 01000
453486
453097
153486
153097
353486
353097
753486
753097
633486
653097
953486
953097
853486
853097
8718
9150
25T336206 25T336208 25T336210 25T336212 25T336214 25T336214
253486
253486
19
20
1- Upstream valve
2- Membrane safety
valve
3- Downstream valve
C
D
Ø E
mm
mm
mm
173
337
63
155
326
63
173
337
63
201
434
80
230
456
80
272
499
80
272
499
80
DN100
DN150
DN200
n° of serie
n° of serie
l 01000
m 00100
n 001000
453098
453400
453401
153098
153400
153401
353098
353400
353401
753098
753400
753400
653098
653098
653098
953098
953098
953098
853098
853098
853098
9328
9328
9328
253401
253401
253401
21
22
4- Internal level breaker
5- Discharge valve
6- Outlet drain holder
7- Outlet valve
Max. acceptable torque
poids
W/Kg
(Nm) for bolts***
27,5
-
25
40
29,5
40
58
40
83,5
110
141
300
151
300
DN250
n° of serie
p 001000
453401
153401
353401
753400
653098
953098
853098
9328
253401
25
25
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