Samson 3214 - Page 17

EB 5868-1 EN 3-5
Design and principle of operation
Table 3-2: Technical data · Type3214 Globe Valve balanced by a diaphragm
Valve size DN 65 80 100 125 150 200 250 300
Pressure rating PN 16 and 25 16 to 40
Rated travel mm 15 15 15 30 30 30 30 50
K
VS
coefcient 50 80 125 230 340 620 750 1200
Max. perm. differential pressure
Δp
bar 10 10 10 12 12 10 10 10
Max. permissible temperature °C
Version for water 150
Version for non-ammable gases 80
Rangeability 40:1 30:1
Leakage class according to IEC60534-3 IV (≤0.01% of K
VS
coefcient)
Conformity
·
Table 3-3: Materials · Type3214 Globe Valve balanced by a diaphragm
Material numbers according to DIN EN
Valve size DN 65 80 100 125 150 200 250 300
Body
PN16
EN-GJL-250
1)
EN-GJS-400-18-LT
2)
EN-GJL-250
1)
EN-GJL-250
1)
EN-GJL-250
1)
1.0619
PN16/25
EN-GJS-400-
18-LT
2)
–
PN16, 25 and 40 1.0619 1.0619
Valve seat 1.4408 CC499K 1.4301
Plug
CW617N with EPDM
soft seal
CC491K with EPDM soft
seal
1.4301 with
EPDM soft seal
Pressure balancing EPDM balancing diaphragm
1)
Formerly EN-JL1040
2)
Formerly EN-JL1049