Samson 3347 - Page 22

3-6 EB 8097 EN
Design and principle of operation
Conformity
See Table 3-1
The Type3347 Valve bears the CE, UKCA
and EAC marks of conformity.
Other compliance:
− EHEDG
1)
The available end connections and body
clamps meet the EHEDG guidelines
(uhttps://www.ehedg.org/guide-
lines-working-groups/guidelines/guide-
lines/detail/ehedg-position-paper).
− 3-A
1)
More information uhttp://www.3-a.org
Table3-1: Technical data for Type3347 Valve
Body version
1)
Micro-owvalve Cast Bar stock
Nominal size
DN6to25
(NPS¼to1)
DN25to100
(NPS1to4)
DN15to150
(NPS½to6)
Body/bonnet connection Bolted bonnet Clamp connection
Clamp
connection
Bolted bonnet
Maximum pressure (see Data
Sheet uT8097 for
restrictions)
16bar(230psi) 16bar(230psi)
16bar
(230psi)
63bar
(914psi)
3)
Seat-plug seal Metal seal · Soft seal
Characteristic Equal percentage or linear
Rangeability Data Sheet uT8097
Permissible medium tempera-
ture
–10 to 150°C (14 to 300°F)
(see Data Sheet uT8097 for restrictions)
Leakage class
acc. to
IEC60534-4 or
ANSI/FCI70-2
Metal seal IV
Soft seal – VI
Surface quality
External
Glass bead blasted
Ra ≤ 0.6µm · Polished
Internal
Ra ≤ 0.8µm · Fine machine nish
Ra ≤ 0.6µm · Polished
Ra ≤ 0.4 µm · Satin nish
Ra ≤ 0.4 µm · Mirror nish
1)
Certication not available for all versions. Contact SAMSON for more information.