User guide
22-11
Control Valves, industrial
16
17
18
19
20
21
22
24
23
25
26
27
28
The quick relief SV300 safety valve is controlled by the medium flowing through it via a pilot valve.It is 
preferably installed in branches of supply pipework and protects downstream parts of a system which 
are at risk from unacceptable excess pressure which can, for example, be caused by pumps. If the 
inlet pressure to the valve rises up to the set opening pressure, then the valve opens immediately to 
the maximum flow position. If the pressure falls to the set pressure, then the valve closes slowly to 
prevent pressure shock loads.
Housing with flange, PN 16, ISO 7005, EN 1092-2; PN 25 on request
Spare Parts
Safety valve, SV300 
Media Water
Body material spherulitic cast iron GGG40
Body finishing powder coating
Port connection type flanges
Max. media temperature 80
o
C
Static pressure PN16
Minimum inlet pressure 0,7 bar
Additional description Opening pressure 1 - 7 bar adjustable.
• High flow capacity
• Light weight and compact construction
• Powder coated inside and outside - Powder used is 
physiologically and toxicologically safe
• Integral control circuit and ball valves
DN size Flow capacity Kvs
Type
mm
50 43
SV300-50A
65 43
SV300-65A
80 103
SV300-80A
100 167
SV300-100A
150 407
SV300-150A
200 676
SV300-200A
250 1160
SV300-250A
300 1600
SV300-300A
350 1600
SV300-350A
400 3300
SV300-400A
450 3300
SV300-450A
Seal Set for DN 50
0903750
Seal Set for DN 65
0903751
Seal Set for DN 80
0903752
Seal Set for DN 100
0903753
Seal Set for DN 150
0903754
Seal Set for DN 200
0903755
Seal Set for DN 250
0903756
Seal Set for DN 300
0903757
Seal Set for DN 350
0903758
Seal Set for DN 400
0903759
Seal Set for DN 450
0903760
Replacement pilot valve for all sizes
CX-PS










