Siemens SITRANS P Brochure & Specs page 193

Fitttings - Shut-off valves for gage and absolute pressure transmitters
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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.
Selection and Ordering data
Shut-off valves, form B, DIN 16270
without test collar, connection shank,
without certificate
Material Maximum permissible
Valve housing working pressure
CW614N (CuZn39Pb3) 250 bar
(mat. No. 2.0402)
P250GH 400 bar
(mat. No. 1.0460)
X 6 CrNiMoTi 17 12 2 400 bar
(mat. No. 1.4571/316Ti)
Shut-off valves, form B, DIN 16271
with test collar, connection shank,
without certificate
Material Maximum permissible
Valve housing working pressure
CW614N (CuZn39Pb3) 250 bar
(mat. No. 2.0402)
P250GH 400 bar
(mat. No. 1.0460)
X 6 CrNiMoTi 17 12 2 400 bar
(mat. No. 1.4571/316Ti)
© Siemens AG 2008
SITRANS P measuring instruments for pressure
Selection and Ordering data
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
P250GH
(mat. No. 1.0460)
X 6 CrNiMoTi 17 12 2
(mat. No. 1.4571/316Ti)
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
P250GH
(mat. No. 1.0460)
X 6 CrNiMoTi 17 12 2
(mat. No. 1.4571/316Ti)
Double shut-off valves, form B, DIN 16272
with test collar, connection shank,
without certificate
Material
Valve housing
CW614N (CuZn39Pb3)
(mat. No. 2.0402)
P250GH
(mat. No. 1.0460)
X 6 CrNiMoTi 17 12 2
(mat. No. 1.4571/316Ti)
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
Order No.
P250GH
(mat. No. 1.0460)
X 6 CrNiMoTi 17 12 2
(mat. No. 1.4571/316Ti)
Accessories
Factory test certificate EN 10204–2.2
7MF9401-7AA
Material acceptance test certificate
EN 10204-3.1
7MF9401-7AB
Instrument bracket, see page 2/197.
7MF9401-7AC
7MF9401-7BA
7MF9401-7BB
7MF9401-7BC
to DIN 16270, DIN 16271 and DIN 16272
Order No.
Maximum permissible
working pressure
400 bar 7MF9401-8AB
400 bar 7MF9401-8AC
Maximum permissible
working pressure
400 bar 7MF9401-8BB
400 bar 7MF9401-8BC
Maximum permissible
working pressure
250 bar 7MF9401-7DA
400 bar 7MF9401-7DB
400 bar 7MF9401-7DC
Maximum permissible
working pressure
400 bar 7MF9401-8DB
400 bar 7MF9401-8DC
7MF9000-8AB
7MF9000-8AD
Siemens FI 01 · 2009
Shut-off valves
2
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