Samson 3321CT, Mounting And Operating Instructions

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3-4 EB 8115 EN
Design and principle of operation
Table 3-1: Technical data for Type 3321CT
Valve size DN 15 to 80 · NPS ½ to 3
Pressure rating PN 16 and 40 · Class 150 and 300
Type of connection Flanges with raised face form B1 according to EN 1092-1/RF
Seat-plug seal Metal or soft seal
Characteristic Equal percentage
Rangeability 50 :1
Permissible medium temperature
Standard version –10 to 220 °C · 14 to 428 °F
Leakage class according to IEC 60534-4 or ANSI/FCI 70-2
Metal seal IV
Soft seal VI
Conformity
FDA compliance
Compliance with EC Directive 1935/2004
Table 3-2: Materials
Type 3321CT Valve
Valve body Stainless steel 1.4408 · A351 CF8M
Valve bonnet Stainless steel 1.4404 or 1.4408 · A182 F316L or A351 CF8M
Seat Stainless steel 1.4404 · A182 F316L
Plug with plug stem Stainless steel 1.4404 · A182 F316L
Plug seal Seal for soft-seated plug: PEEK
(certified according to FDA/Regulation (EC) 1935/2004)
Guide bushing Nickel alloy
Packing V-ring packing: PTFE with carbon, spring: 1.4310
Body gasket Graphite seal on metal core
Type 3379 Pneumatic Actuator
Housing and cover Stainless steel 1.4409 · A351 CF3M
Actuator stem Stainless steel 1.4404 · A182 F316L