Siemens P technical specifications spindle valve manifolds DN, 201

© Siemens AG 2008

SITRANS P measuring instruments for pressure

Fitttings - Shut-off valves for differential pressure transmitters

2-, 3- and 5-spindle valve manifolds DN 5

■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.

■Benefits

•Max. working pressure 420 bar

•Each available in version for oxygen

■Application

The spindle valve manifolds DN 5 are designed for liquids and gases

Each is available in a version for oxygen on request

■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

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		-

■Function

Functions of all valve manifolds:

Selection and Ordering data		Order No.
Valve manifolds DN 5		7	M F 9 4		1 1 -	77		A
for liquids and gases, for flanging to pressure
transmitters for absolute and differential
pressure, max. working pressure 420 bar
									2
(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		7MF9000-8AD
EN 10204-3.1
Selection and Ordering data	Order code			Order No.
Further designs1)
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/ -20 UNF x	K35			7MF9411-7DB
16
1¾ inch to ASME B18.2.1; chromized
steel
1x gasket made of PTFE,
max. permissible 420 bar, 80 °C
2x screws 7/ -20 UNF x	K45			7MF9411-7DC
16
1¾ inch to ASME B18.2.1; stainless
steel
1x gasket made of PTFE,
max. permissible 420 bar, 80 °C
for valve manifold 7MF9411-5B. and
-5C.
4x screws 7/ -20 UNF x
	K36			7MF9411-5DB
16
1¾ inch to ASME B18.2.1; chromized
steel
2x flat gaskets made of PTFE,
max. permissible 420 bar, 80 °C
4x screws 7/ -20 UNF x	K46			7MF9411-5DC
16
1¾ inch to ASME B18.2.1; stainless
steel
2x flat gaskets made of PTFE,
max. permissible 420 bar, 80 °C
Accessory set to DIN2)
(connection between valve manifold
and pressure transmitter)
for valve manifold 7MF9411-5A.
2x screws M10x45 to DIN EN 24014;
	K15			7MF9411-7BB
chromized steel
2x washers Ø 10.5 mm to DIN 125;
1x gasket made of PTFE,
max. permissible 420 bar, 80 °C
2x screws M10x45 to DIN EN 24014;	K25			7MF9411-7BC
stainless steel
2x washers Ø 10.5 mm to DIN 125,
stainless steel;

1x gasket made of PTFE,

max. permissible 420 bar, 80 °C

•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

Siemens FI 01 · 2009

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