Samson 43-3, Mounting And Operating Instructions

Page: 13 / 20

EB 2173 EN 13
Maintenance
6 Maintenance
The temperature regulators do not require
any maintenance. Nevertheless, they are
subject to natural wear, particularly at the
seat and plug.
Depending on the operating conditions,
check the regulator at regular intervals to
avoid possible malfunctions.
If the temperature exceeds the value adjusted
at the temperature sensor, possible causes
for this are:
– The thermostat is defective due to exces-
sive temperatures.
–
Valve seat and plug are contaminated
with dirt.
–
Seat and plug leak due to natural wear.
Exceptional operating and installation condi-
tions can lead to changed situations that
may affect the control response and lead to
malfunctions. In such cases, check the instal-
lation conditions, process medium, tempera-
ture, and pressure conditions.
7 Customer inquiries
Contact SAMSON's After-sales Service de-
partment for support concerning mainte-
nance work or when malfunctions or defects
arise.
Please send your inquiries to:
aftersalesservice@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
–
Configuration ID
–
Upstream and downstream pressure
–
Temperature and process medium
– Min. and max. flow rate in m³/h
– 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.)