Siemens SITRANS P - Manual (Page 201)

SITRANS P measuring instruments for pressure
Fitttings - Shut-off valves for differential pressure transmitters
2-, 3- and 5-spindle valve manifolds DN 5
2/201 Siemens FI 01 · 2009
2
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Overview
The 2-spindle, 3-spindle and 5-spindle valve manifolds
7MF9411-5.. are for pressure transmitters for absolute pressure
or differential pressure.
The valve manifolds are used to shut off the differential pressure
lines and to check the pressure transmitter zero.
The 2-spindle and the 5-spindle valve manifold enable in addi-
tion venting on the transmitter side and checking of the pressure
transmitter characteristic.
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Benefits
• Max. working pressure 420 bar
• Each available in version for oxygen
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Application
The spindle valve manifolds DN 5 are designed for liquids and
gases
Each is available in a version for oxygen on request
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Design
All versions of the valve manifolds have a process connection ½-
14 NPT. The connection for the pressure transmitter is always
designed as a flange connection to EN 61518, form B . The 2-
spindle and the 5-spindle valve manifold have in addition a vent
and test connection ¼-18 NPT.
The valves have an external spindle thread.
Materials used
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Function
Functions of all valve manifolds:
• Shutting off the differential pressure lines
• Checking the pressure transmitter zero
Additional functions of the 2-spindle and 5-spindle valve mani-
folds through the vent and test connection:
• Venting on the transmitter side
• Checking the pressure transmitter characteristic
Component Material Mat. No.
Housing X 2 CrNiMo 17 13 2 1.4404/316L
Cones X 6 CrNiMoTi 17 12 2 1.4571/316Ti
Spindles X 2 CrNiMo 18 10 1.4404/316L
Head parts X 5 CrNiMo 18 10 1.4401/316
Packings PTFE -
Selection and Ordering data Order No.
Valve manifolds DN 5 7 M F 9 4 1 1 - 7 7 A
for liquids and gases, for flanging to pressure
transmitters for absolute and differential
pressure, max. working pressure 420 bar
(order accessory set with Order code),
without certificate
• 2-spindle valve manifold 5 A
• 3-spindle valve manifold 5 B
• 5-spindle valve manifold 5 C
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 code Order No.
Further designs 1)
Please add "-Z" to Order No. and
specify Order code.
Accessory set to EN
(connection between valve manifold
and pressure transmitter)
for valve manifold 7MF9411-5A.
2x screws 7 /
16
-20 UNF x
1¾ inch to ASME B18.2.1; chromized
steel
1x gasket made of PTFE,
max. permissible 420 bar, 80 °C
K35 7MF9411-7DB
2x screws 7 /
16
-20 UNF x
1¾ inch to ASME B18.2.1; stainless
steel
1x gasket made of PTFE,
max. permissible 420 bar, 80 °C
K45 7MF9411-7DC
for valve manifold 7MF9411-5B. and
-5C.
4x screws 7 /
16
-20 UNF x
1¾ inch to ASME B18.2.1; chromized
steel
2x flat gaskets made of PTFE,
max. permissible 420 bar, 80 °C
K36 7MF9411-5DB
4x screws 7 /
16
-20 UNF x
1¾ inch to ASME B18.2.1; stainless
steel
2x flat gaskets made of PTFE,
max. permissible 420 bar, 80 °C
K46 7MF9411-5DC
Accessory set to DIN 2)
(connection between valve manifold
and pressure transmitter)
for valve manifold 7MF9411-5A.
2x screws M10x45 to DIN EN 24014;
chromized steel
2x washers Ø 10.5 mm to DIN 125;
1x gasket made of PTFE,
max. permissible 420 bar, 80 °C K15 7MF9411-7BB
2x screws M10x45 to DIN EN 24014;
stainless steel
2x washers Ø 10.5 mm to DIN 125,
stainless steel;
1x gasket made of PTFE,
max. permissible 420 bar, 80 °C K25 7MF9411-7BC
© Siemens AG 2008