Samson 3351 - Page 19

EB 8039 EN 3-5
Design and principle of operation
Table3-3: Materials
Valve DIN ANSI
Body
Castiron
EN-GJL-250
Spheroidal
graphite iron
EN-GJS-400-
18-LT
Caststeel
1.0619
Caststainless
steel
1.4408
Castiron
A126B
Caststeel
A216WCC
Caststainless
steel A351
CF8M
Seat 1.4006
1.4404/
1.4401
A182 F6a
Cl.2
A182 F6a
Cl.2
316Ti/316L
Plug 1.4404 · Seal made of reinforced PTFE or PEEK
Body gasket Graphiteonmetalcore
Actuator
diaphragm
NBR, EPDM or FKM with fabric reinforcement
Valve
bonnet
Castiron
EN-GJL-250
Caststeel
1.0619
Caststeel
1.0619
Bonnetange
1.4404
welded to
bonnet
1.0619
Castiron
A216B
Caststeel
A216WCC
Bonnetange
316L welded
to bonnet
A216WCC
Guide
bushing
1.4104 1.4404 1.4104 1.4104 316L
Packing V-ring packing: PTFE with carbon · Spring: 1.4310
Threaded
bushing
1.4404+Carbon 316L+Carbon
Table3-4: Process medium and scope of application
Valve size DN15to100 NPS½to4
Pressure rating PN 16, 25 and 40 Class125,150and300
Ambient temperature range –35to+100°C –30to+212°F
Medium temperature range –10to+220°C 14to+428°F