GESTRA UNA 46, Оригинальная инструкция по установке

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In order to prevent confusion, the covers
and bodies of the UNA 45 and UNA 46 are
designed differently to those of the
UNA 47:

On UNA 45/46, the spring is on the body and
the groove is on the cover.

On UNA 47, the groove is on the body and the
spring is on the cover.
The torque of the screws on the body depends on
the model.

On UNA 45, UNA 46 and UNA 46A with DN 15
to DN 25, the required torque is 35 Nm.

On UNA 45, UNA 46 and UNA 46A with DN 40
to DN 65 and UNA 47 with DN 15 to DN 50 the
required torque is 140 Nm.

Tighten the four screws to the specified torque.

If necessary, fit the measurement electrode as
described in the section "
Mounting the
measuring electrode " on page 15.