Siemens SITRANS P Uživatelský manuál stáhnout pdf (Strana 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

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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

■

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

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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

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

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

-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

-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

-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

-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

(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

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