Samson 3347 - Versions

3-4 EB 8097 EN
Design and principle of operation
3.2 Versions
Steam barrier
A steam barrier can be tted to sterilize the
plug stem with either steam or a sterile uid.
Heating jacket
Details on request
Anti-crystallizing seal
The bonnet can be tted with an anti-crystal-
lizing seal.
Connections
The valve is available with various end con-
nections (e.g. welding ends, threaded cou-
plings, clamp connections or anges) de-
pending on the valve version.
High-pressure versions
A high-pressure version with bolted bonnet
is available for pressure rating PN40 (high-
er pressure ratings on request).
Micro-owvalveversion
A micro-ow valve version is available for
valve sizes DN6 to 15 (NPS¼ to ½) up to
max. 40bar (580psi).
Actuators
In these instructions, the preferable combina-
tion with a SAMSON Type3271 or
Type3277 Pneumatic Actuator is described.
Other actuators (e.g. Type3372 Electro-
pneumatic Actuator or Type3379 Pneumatic
Actuator) can also be used.
The pneumatic actuator (with or without
handwheel) can be replaced by another
pneumatic actuator in a different size, but
with the same travel.
Î Observe the maximum permissible actu-
ator force.
If the travel range of the actuator is larger
than the travel range of the valve, the spring
assembly in the actuator must be preloaded
so that the travel ranges match. See associ-
ated actuator documentation.
Note
PTFE-guided version PEEK-guided version Anti-crystallizing seal system
Seal
PTFE seal
Plug stem
PEEK seal
Hardened
plug stem
Metal centering
ring
Seal
Plug stem
Hardened
metal
centering ring
Seal
EPDM
Fig.3-5: Overview of seal systems in detailed view