Siemens SITRANS P - Manual (Page 206)

SITRANS P measuring instruments for pressure
Fitttings - Shut-off valves for differential pressure transmitters
3-way and 5-way valve manifolds DN 5
2/206 Siemens FI 01 · 2009
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Overview
The three-spindle and five-spindle valve manifolds DN 5
(7MF9410-1../-3..) are used to shut off the differential pressure
lines and to check the transmitter zero.
In addition, the five-way valve manifold permits blowing out of
the differential pressure lines.
■
Benefits
• Available for aggressive and non-aggressive liquids and
gases
• Max. working pressure 420 bar, with version for oxygen max.
100 bar
■
Application
The 3-way and 5-way valve manifolds are available in versions
for aggressive and non-aggressive liquids and gases.
Mounting plates are available for wall mounting, for securing to
mounting racks or for pipe mounting.
■
Design
The process connection of the 3-way and 5-way valve manifolds
is a pipe union with ferrule.
Both valve manifolds have 2 flange connections for connecting
a pressure transmitter.
In addition, the five-way valve manifold has 2 blow-out connec-
tions.
Depending on the version the valve manifold has either 3 or 5
valves, each with an internal spindle thread.
Materials used
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Function
• Shutting off the differential pressure lines
• Checking the pressure transmitter zero
• In addition, the five-way valve manifold permits blowing out of
the differential pressure lines.
For non-aggressive liquids and
gases For aggressive
liquids and
gases
Component Material Mat. No. Material Mat.
No.
Housing P250GH 1.0460 X 6
CrNiMoTi
17 12 2 1.4571/
316Ti
Head parts C 35 1.0501
Spindles X 12 CrMoS 17 1.4104
Cones X 35 CrMo 17 hardened
and tempered 1.4122
Valve seats X 6 CrNiMoTi 17 12 2 1.4571/
316Ti
Packings PTFE - PTFE -
Selection and Ordering data Order No.
3-way valve manifold DN 5 7 M F 9 4 1 0 - 7 7 A
for flanging to pressure transmitters for differ-
ential pressure, process connection: Pipe
union with ferrule, max. working pressure
420 bar, weight 2.9 kg (order accessory set
and mounting plate with Order code),
without certificate
• for non-aggressive liquids and gases 1 E
• for aggressive liquids and gases 1 F
5-way valve manifold DN 5
for flanging to pressure transmitters for differ-
ential pressure, process connection: Pipe
union with ferrule, max. working pressure
420 bar, weight 4.4 kg (order accessory set
and mounting plate with Order code),
without certificate
• for non-aggressive liquids and gases 3 E
• for aggressive liquids and gases 3 F
Accessories
Factory test certificate EN 10204–2.2 7MF9000-8AB
Material acceptance test certificate
EN 10204-3.1 7MF9000-8AD
© Siemens AG 2008