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Pressure relief valve type V 85 and type V 185
No.
Description
1
Base plate
2
Bonnet
*)
3
Diaphragm
4
Thrust piece
*)
5
Pressure spring
1) only DN 65 – DN 100
*) Wearing parts / recommended spare parts
Description
„ Pressure relief valves V 85 and V 185 protect systems and
piping systems against overpressure and pressure peaks.
„ The third pipe socket (overflow outlet) integrated in the
valve body allows installation directly into the main pipe.
„ Flow-optimized design of the lower part results in only
a small pressure loss in the passage.
Functionality
By a preloaded spring with a compression piece the prefor-
med diaphragm (V 186) or the piston (V 86) is pressed against
the sealing seat of the overflow outlet. In the initial state the
overflow outlet is closed, there is no through flow. Exceeds
the system pressure acting on the diaphragm the value of the
set spring force, the overflow outlet becomes released and
the medium can drain off.
Working pressure p
B
Body material
T
[°C]
B
0 up to 25
40
PVC-U
60
– 10 up to 30
40
PP
60
80
– 20 up to 40
60
PVDF
80
100
Dimensions and weights
DN
d
D
h
h
2
15
20
83
20
-
20
25
83
20
-
25
32
112
27
-
32
40
165
43
-
40
50
165
43
-
50
63
165
43
-
65
75
180
45
70
80
90
200
90
95
100
110
250
70
110
3) Cement spigot
4) Union with cement socket
8) True union with welding spigot
11/2020
Errors and omissions excepted
Number
Material
1
PVC-U, PP, PVDF
1
PVC-U, PP, PVDF
1
PTFE, EPDM
1
PP
1
Spring steel
in bar
p
[bar]
B
DN 10 – 50 DN 65 – 80
DN 100
10
6
6
6
1
1
10
6
7
6
4,3
3,5
1,7
1,3
10
6
7,5
4,6
5,3
3,3
2
1
Dimensions in mm
PVC-U
3)
4)
5)
H
L
z
L
f
137
134
160
140
137
134
160
140
199
174
200
180
199
174
204
180
290
224
258
230
290
244
286
250
275
284
-
290
410
300
-
310
485
380
-
390
5) Flange
6) Welding spigot (IR or butt)
- For the installation length of the 3rd spigot, divide the dimensions L, L f , L s , z by 2 -
No.
Description
6
Spring plate
7
Adjustment screw / nut
8
Cap
9
Screw set
10
Piston complete
Special features
„ Good control characteristic
„ Installation independent of position
„ Overflow outlet directly on the valve
Type V 185 additionally:
„ Low maintenance due to simple construction
„ Entire actuator mechanism hermetically sealed from the
medium by diaphragm
„ Nearly dead space free body
„ Integrated support for plate and rail mounting
4
4
1
4
4
2,4
1
4
3
2
0,5
PP / PVDF
PVC-U
6)
7)
5)
8)
L
z
L
Ls
f
158
184
168
272
158
184
168
278
198
224
210
324
202
232
210
334
256
291
266
397
256
298
266
380
284
-
296
-
300
-
310
-
380
-
390
-
7) True union with welding socket
Plastic valves
Number
1
Aluminum alloy
1
A2 - 1.4301 (SUS 304)
1
PVC, PP
1
A2 - 1.4301 (SUS 304)
*,1)
1
PVC-U, PP, PVDF
Connection for attachment
DN 15 – DN 50 (type V 185)
Ø d
x 2
4
DN
d
4
15
8,8
20
25
8,8
32
40
8,8
50
Weight in kg / pc.
PP
PVDF
0,5
0,4
0,7
0,5
0,4
0,7
1,3
0,9
1,7
1,3
0,9
1,7
6,5
4,5
8,1
6,6
4,6
8,3
8,2
6,3
14,8
Dimensions and weights
12,8
9,5
16,2
for other connections
22,7
19,9
33,8
see L7 – 44
Material
e
1
50
30
50
L7 – 9
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