EB 3135-1 EN
5
Safety instructions and measures
1
Safety instructions and measures
Intended use
The Type 2488 Pressure-independent Control Valve (PICV) with an electric actuator is intend
-
ed for flow control of liquids up to 150 °C and gases up to 80 °C. The pressure-independent
control valves are mainly used in district heating supply networks. The regulator and actuator
are designed to operate under exactly defined conditions (e.g. operating pressure, process
medium, temperature). Therefore, operators must ensure that the valve and actuator are only
used in operating conditions that meet the specifications used for sizing the devices at the or
-
dering stage. In case operators intend to use the devices in other applications or conditions
than specified, contact SAMSON.
SAMSON does not assume any liability for damage resulting from the failure to use the de-
vice for its intended purpose or for damage caused by external forces or any other external
factors.
Î
Refer to the technical data and nameplate for limits and fields of application as well as
possible uses.
Reasonably foreseeable misuse
The device is not suitable for the following applications:
−
Use outside the limits defined during sizing and by the technical data
Furthermore, the following activities do not comply with the intended use:
−
Use of non-original spare parts
−
Performing service and repair work not described in these instructions
−
Changing parts, service or repair work on TÜV-tested Type 2488/5x25-x and
Type 2488/TROVIS 5x25-x
Safety features
The Type 2488 Pressure-independent Control Valve (PICV) with an electric actuator without
fail-safe action does not have any special safety features.
The Type 2488 Pressure-independent Control Valve (PICV) with an electric actuator with fail-
safe action moves to a certain fail-safe position upon supply voltage failure. The fail-safe ac-
tion of SAMSON actuators is specified on the actuator nameplate.
When relieved of pressure, the valve without actuator and with an open restriction is opened
by the force of the set point springs.
