ARI Armaturen TEMPTROL 774 EN - Manual (Page 12)

Page 30 Rev. 0040702000 1011
Operating and installation instructions
TEMPTROL
®
5.5 Strainer
6.0 Putting the valve into operation
The operation is then as follows:
- After installation, valve and piping must be filled over the return line. If this is not possible,
slowly open (half open) the stop valve before the control valve, and carefully without
pressure surges, fill the piping. Then slowly fully open the stop valve.
- Any leakage tests may be conducted only when the valve is not closed.
Otherwise, internal valve components could be damaged.
-
ATTENTION !
Install a strainer before the temperature regulator with the sieve sideways (with
the medium steam) to avoid the collection of condensate.
The strainer must be cleaned from time to time.
ATTENTION !
- Before putting the valve into operation, check material, pressure, temperature
and direction of flow.
- Putting into operation only through expert personnel.
- Regional safety instructions must be adhered to.
- Residues in piping and valves (dirt, weld beads, etc.) inevitably lead to leakage.
- Touching the valve when it is operating at high (> 50 °C) or low (< 0 °C) media
temperatures can cause injury.
Affix warning notice or protective insulation as appropriate!
Before putting a new plant into operation or restarting a plant after repairs or
modification, always make sure that:
- All works has been completed!
- The valve is in the correct position for its function.
- Safety devices have been attached.
- To avoid a to higher temperature on the sensor, firstly adjust to the max. range
of the setting range.