Siemens SITRANS P - Manual (Page 193)

SITRANS P measuring instruments for pressure
Fitttings - Shut-off valves for gage and absolute pressure transmitters
Shut-off valves
to DIN 16270, DIN 16271 and DIN 16272
2/193 Siemens FI 01 · 2009
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Overview
Transmitter for pressure with double shut-off valve 7MF9401-...
The shut-off valves for pressure gages are used to shut off the
line of the measured medium when dealing with aggressive and
non-aggressive gases, vapors and liquids.
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Design
A water trap must be connected upstream of the shut-off valve
in the case of temperatures of the medium above 120 °C. The
shut-off valves form B have a shaft with which they can be se-
cured on an instrument bracket. An adapter is therefore not re-
quired to secure these valves. The vent/test connection can be
shut off separately with the double shut-off valves DN 5. This per-
mits checking of the zero on the pressure gage. In addition, the
characteristic of the pressure gage can be checked using an ex-
ternal pressure source.
Instrument bracket, see page 2/197.
Selection and Ordering data Order No.
Shut-off valves, form B, DIN 16270
without test collar, connection shank,
without certificate
Material
Valve housing Maximum permissible
working pressure
CW614N (CuZn39Pb3)
(mat. No. 2.0402) 250 bar 7MF9401-7AA
P250GH
(mat. No. 1.0460) 400 bar 7MF9401-7AB
X 6 CrNiMoTi 17 12 2
(mat. No. 1.4571/316Ti) 400 bar 7MF9401-7AC
Shut-off valves, form B, DIN 16271
with test collar, connection shank,
without certificate
Material
Valve housing Maximum permissible
working pressure
CW614N (CuZn39Pb3)
(mat. No. 2.0402) 250 bar 7MF9401-7BA
P250GH
(mat. No. 1.0460) 400 bar 7MF9401-7BB
X 6 CrNiMoTi 17 12 2
(mat. No. 1.4571/316Ti) 400 bar 7MF9401-7BC
Shut-off valves, form B, DIN 16270
without test collar, pipe union with ferrule
12 S DIN EN ISO 8484-1, without certificate
Material
Valve housing Maximum permissible
working pressure
P250GH
(mat. No. 1.0460) 400 bar 7MF9401-8AB
X 6 CrNiMoTi 17 12 2
(mat. No. 1.4571/316Ti) 400 bar 7MF9401-8AC
Shut-off valves, form B, DIN 16271
with test collar, pipe union with ferrule
12 S DIN EN ISO 8484-1, without certificate
Material
Valve housing Maximum permissible
working pressure
P250GH
(mat. No. 1.0460) 400 bar 7MF9401-8BB
X 6 CrNiMoTi 17 12 2
(mat. No. 1.4571/316Ti) 400 bar 7MF9401-8BC
Double shut-off valves, form B, DIN 16272
with test collar, connection shank,
without certificate
Material
Valve housing Maximum permissible
working pressure
CW614N (CuZn39Pb3)
(mat. No. 2.0402) 250 bar 7MF9401-7DA
P250GH
(mat. No. 1.0460) 400 bar 7MF9401-7DB
X 6 CrNiMoTi 17 12 2
(mat. No. 1.4571/316Ti) 400 bar 7MF9401-7DC
Double shut-off valves, form B, DIN 16272
with test collar, pipe union with ferrule
12 S DIN EN ISO 8484-1, without certificate
Material
Valve housing Maximum permissible
working pressure
P250GH
(mat. No. 1.0460) 400 bar 7MF9401-8DB
X 6 CrNiMoTi 17 12 2
(mat. No. 1.4571/316Ti) 400 bar 7MF9401-8DC
Accessories
Factory test certificate EN 10204–2.2 7MF9000-8AB
Material acceptance test certificate
EN 10204-3.1 7MF9000-8AD
Selection and Ordering data Order No.
© Siemens AG 2008