Table of Contents
Advertisement
NOTICE
!
Possible malfunction and damage due to
adverse weather conditions (temperature,
humidity).
− Do not install the device outdoors or in
rooms prone to frost.
− Protect the regulator against frost if it is
used to control freezing media.
− Either heat the regulator or remove it from
the plant and completely drain the residual
medium after a plant shutdown.
5.2 Additional fittings
NOTICE
!
Damage due to pressure peaks.
If solenoid valves are installed downstream
of the regulator when the regulator is used to
control liquids, pressure peaks may occur
when the solenoid valves close quickly. The
installation of solenoid valves is not permit-
ted when the regulator is used to control liq-
uids.
EB 2623-1 EN
Strainer
A strainer installed upstream in the flow pipe
holds back any dirt or other foreign particles
carried along by the medium. For example,
the SAMSON Type 1 NI Strainer is suitable
(u T 1010).
The following points must be observed when
installing the strainer:
− Allow sufficient space to remove the filter.
− Observe the flow direction through the
strainer.
− In horizontal pipelines with gases or liq-
uids, the filter element faces downward.
The filter element faces sideways in ap-
plications with steam.
− Install strainers in vertical pipelines with
the medium flowing upward with the
drain plug facing upward.
Note
Check the strainer at regular intervals and
clean it, if necessary.
Shut-off valves
Install a hand-operated shut-off valve both
upstream of the strainer and downstream of
the regulator (see Fig. 5). This allows the
plant to be shut down for cleaning and
maintenance, and when the plant is not used
for longer periods of time.
Mounting and start-up
21
Advertisement
Table of Contents
