Wika PGS21 Manuale Utente Scaricare il pdf (Pagina 13)

WIKA operating instructions models PGS10, PGS11 and PGS21

6.3 Storage

Permissible conditions at the place of storage:

Storage temperature: -20 ... +70 °C

7. Commissioning, operation

Mechanical connection

In accordance with the general technical regulations for pressure gauges

(e.g. EN 837-2 "Selection and installation recommendations for pressure

gauges").

If the pressure gauge is mounted lower than the pressure tapping, the

capillary must be ushed thoroughly before connection in order to clear out

any foreign matter.

When screwing gauges in, the force required for this must not be applied

through the case, but rather through the spanner ats (using a suitable tool)

provided for this purpose on the square shaft of standard connections.

6. Transport, packaging ... / 7. Commissioning, operation

Installation with

spanner

Correct sealing of pressure gauge connections with parallel threads



must

be made using suitable sealing rings, sealing washers or WIKA prole seals.

The sealing of tapered threads (e.g. NPT threads) is made by providing the

thread



, with additional sealing material such as, for example, PTFE tape

(EN 837-2).

The torque depends on the seal used. Connecting the gauge using a clamp

socket or a union nut is recommended, so that it is easier to orientate the

gauge correctly.

Wrench surface

Sealing face



Sealing in the

thread



11581752.02 09/2013 GB/D/F/E

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Wika PGS21 Manuale Utente Pagina 13