Samson series 43, Mounting And Operating Instructions

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EB 2172 EN 13
Customer inquiries
Procedure
Types 43-5 and 43-7
1. Unscrew the coupling nut (15) and re-
move the control thermostat.
2. Unscrew the guide nipple (6) and insulat-
ing pipe (1.3) from the valve body.
3. Use the plug wrench to pull out the entire
plug section.
4. Thoroughly clean the seat (2) and plug
(3). If the seat is damaged, it must be re-
placed using the seat wrench. If the plug
is damaged, the entire plug section as
well as the seal in the body must be re-
newed.
Type 43-6
1. Unscrew stopper (1.2) and pull out the
entire plug section.
2. Thoroughly clean the seat and plug. If
the seat is damaged, it must be replaced
using the seat wrench.
If the plug is damaged, the entire plug
section as well as the seal in the body
must be renewed.
To reassemble, proceed in reverse order. If
necessary, insert a new seal for the plug sec-
tion into the body. Screw in the plug section
(tightening torque approx. 80 Nm).
Connect the thermostat and valve using the
coupling nut (15). Tightening torque approx.
20 Nm.
7 Customer inquiries
If malfunctions or defects occur, contact the
SAMSON After-sales Service department for
support.
Please send your inquiries to: kundendienst@
samson.de
The addresses of SAMSON AG, its subsid-
iaries, representatives and service facilities
worldwide can be found on the SAMSON
website (
u
www.samson.de), in all
SAMSON product catalogs or on the back
of these Mounting and Operating Instruc-
tions.
To assist diagnosis, specify the following de-
tails:
–
Type and nominal size of the valve,
Type ... Thermostat
–
Model number with index
–
Upstream and downstream pressure
–
Temperature and process medium
–
Min. and max. flow rate
– Is a strainer installed?
– Installation drawing showing the exact
location of the regulator and all the ad-
ditionally installed components (shut-off
valves, thermometer, etc.).