Siemens P Fittings, 190, New standard DIN EN, Material acceptance test certificate to EN

© Siemens AG 2008

SITRANS P measuring instruments for pressure

Fittings

Technical description

■Overview

All 21-off fittings can be secured onto walls, racks (72 mm grid) and vertical and horizontal pipes.

This offers the advantage when assembling a plant that the shut-

2off fittings can be secured first and the lines for the medium and differential pressure connected to them. It is then possible to check all connections for leaks and to blow out or flush the pipes in order to remove dirt (welding residues, shavings etc.).

The measuring instruments can be screwed onto the shut-off fit- tings right at the end when all piping has been completed.

If an instrument has to be removed for maintenance, the fittings and pipes remain as they are. It is only necessary to close the valves – the instrument can then be removed, and refitted follow- ing maintenance.

Classification according to pressure equipment directive (DGRL 97/23/EC):

For gases of fluid group 1 and liquids of fluid group 1; compli- ance with requirements of article 3, paragraph 3 (sound engi- neering practice).Siemens FI 01 · 2009

New standard DIN EN 61518

The flange connection between transmitter and valve manifold was modified in the new standard DIN EN 61518. The only con- nection thread approved for use in the process flanges of the pressure transmitter is 7/16-20 UNF.

The valve manifolds for M12 screws, including the accessory sets, have therefore been deleted.

Material acceptance test certificate to EN 10204-3.1

If a material acceptance test certificate to EN 10204-3.1 is re- quired when ordering valve manifolds or shut-off fittings, please note that a single certificate is sufficient for each ordered item type. This means that you will only be charged for one certificate in the cost calculations.

■Pressure transmitters with shut-off fittings - mounting examples

SITRANS P transmitter for gage pressure with double shut-off valve, SITRANS P pressure transmitter with multiway cock or 3-spindle valve manifold

SITRANS P pressure transmitter for differential pressure, mounted in pro- tective box (available on request)

SITRANS P transmitter for differential pressure with 3-way valve manifold, 3-spindle valve manifold or valve manifold combination DN 5/DN 8

SITRANS P pressure transmitter mounted on valve combination "Monoflange" for direct connection to flanges (available on request)

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Siemens FI 01 · 2009