EB 2517 EN
19
Design and principle of operation
Table 4:
Materials · Material numbers according to DIN EN
Valve
Type 2417
Nominal pressure
PN 16
PN 25
PN 40
Max. perm.
temperature
300 °C
350 °C
Body
Cast iron
Spheroidal graphite
iron
Cast steel
Stainless steel
EN-GJL-250
EN-GJS-400-18-LT
1.0619
1.4408
Seat
CrNi steel
CrNiMo steel
Plug
Material
CrNi steel
CrNiMo steel
Seal
PTFE with 15 % glass fiber · EPDM · NBR · FKM
Guide bushing
CrNi steel
Balancing bellows and
bellows seal
Stainless steel 1.4571
Actuator
Type 2413
Diaphragm actuator
Bellows actuator
Diaphragm cases
Sheet steel S 235 JR (St 37-2)
1)
–
Diaphragm
EPDM · FKM· NBR · EPDM with PTFE
protective facing
–
Bellows housing
–
1.5415/1.4301 (stainless steel only)
Bellows
–
1.4571
1)
In corrosion-resistant version (CrNi steel)
Table 5:
Dimensions in mm and weights in kg
Excess pressure valve
Type 41-73
Valve size
DN 15 DN 20 DN 25 DN 32 DN 40 DN 50 DN 65 DN 80 DN 100
Length L
130
150
160
180
200
230
290
310
350
Height H1
335
390
510
525
Height H2
Forged steel
53
–
70
–
92
98
–
128
–
Other materials
44
72
98
118
1)
+10 % for all other materials
2)
Actuator with two diaphragms: 1 to 2.5 bar
3)
Actuator with two diaphragms: Height H + 50 mm
Summary of Contents for 2413 Series
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