TLV SF1 Manuel D'utilisation page 8

To Minimize Pressure Loss Effects
Pressure loss across the separator filter increases the longer it is in service, resulting in a
continuous decrease in secondary pressure. If a slight drop in secondary pressure will
affect the process, refer to the "In cases where more stable pressure is needed" piping flow
diagram shown below.
The effects of gradually increasing pressure loss can be minimized. However, this does not
mean that the service life of the clogging filter can be prolonged.
In cases where more stable pressure is needed
lnstalling a COSPECT
pressure reducing valve* 1
with an external pressure
sensing line from the outlet
of the SF1 will help supply
stable pressure and
minimize pressure drop,
which gradually increases
due tobuild-up of dirt/scale
at the filter.
Dirt & scale build-up,
SF1outlet pressure
dorops.
Pressure reducing valve
detects pressure drop
and automatically
increases SF1 inlet
pressure.
SF1 outlet pressure
rises to maintain set
pressure.*
2
* If a pressure reducing valve other than COSPECT (with built-in strainer, separator, and
1
steam trap) is installed, the equipment indicated by A in the diagram on the previous
page must be installed ahead of the pressure reducing valve for the SF1 inlet.
* If it becomes impossible to adjust the pressure with the pressure reducing valve due to
2
build-up of dirt/scale, clean or replace the filter.
Pressure
Gauge
Inlet Valve
COSPECT
Pressure
Valve
Reducing
Dirt & Scale
Valve
Condensate
Discharge
Washing
Pressure
Gauge
Valve Valve
Valve
Union
Steam Trap
Collection
Valve
Dirt & Scale Blowdown
(hot/cold water,
steam or air)
Pressure
Gauge
Outlet Valve