Samson 42-36 E Mounting And Operating Instructions page 25

Table 3-3: Materials · Material number according to DIN EN
Type 2423 E Valve balanced by a bellows
Pressure rating
Valve body
Seat
Up to DN 100
Plug
DN 125 to 250
Plug stem
Metal bellows
Bottom section
Body gasket
Type 2423 E Valve balanced by a diaphragm
Pressure rating
Valve body
Valve seat
Plug (standard version)
Pressure balancing
Type 2426 Actuator
Diaphragm cases
Diaphragm
Guide bushing
Electric actuators
Materials
DN 15, 25, 40 and 50 only
1)
Optionally with soft seal with standard K
2)
Special version 1.4409
3)
DN 65 to 100: 1.4006
4)
DN 65 to 100: 1.4104/1.4006
5)
DN 125 to 250 only
6)
Special version with FKM and two diaphragms
7)
EB 3018 EN
PN 16 PN 25
Spheroidal graphite
Cast iron
iron
EN-GJL-250
EN-GJS-400-18-LT
1.4104, 1.4006
1.4104, 1.4006
1.4571 · DN 125 and larger: 1.4404
P265GH
PN 16 PN 25
Spheroidal graphite
Cast iron
iron
EN-GJL-250
EN-GJS-400-18-LT
Red brass · With EPDM soft seal, max. 150 °C or with PTFE soft seal, max.
3) 5)
Balancing cases made of sheet steel DD11 · EPDM balancing diaphragm, max.
1.0332
EPDM with fabric reinforcement · Special version for mineral oils: FKM
DU bushing
Type 5827 Electric Actuator
Type 3374 Electric Actuator
coefficients
VS
Design and principle of operation
Cast steel
1.0619
2)
1.4301, 1.4404 with PTFE seal
1.4301
Graphite on metal core
Cast steel
1.0619
6)
Red brass
3) 4)
150 °C
150 °C
7)
u T 5827
u T 8331-3
PN 16, 25 and 40
Cast stainless Forged stainless
steel 1.4408 steel 1.4404
1.4404
1.4404
1.4571
PN 16, 25 and 40
Cast stainless
–
steel 1.4408
6)
1.4301
PTFE
1)
)
7
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