Application
To
maintain and regulate top pressure on pressure tanks
during filling,
processing and emptying.
Construction
The pressure regulator
comprises a single valve unit including
pressure relief valve, pressure
supply valve, and connection
for pressure gauge. On top is a vent port with
outlet connection.
Modular design to suit different requirements.
Materials
Valve block and vent port:
Stainless steel AISI 304
Valve bodies (as standard): PP and stainless steel
with
EPDM gaskets
All other parts: Non-toxic foodgrade materials.
The correct sizing depends on gas volume to pass during
filling,
fermenting, or emptying. The table below can be used as
a
guideline for standard fermentation:
Dimensions Filling/emptying/ Working capacity
CO2
formation rate of fermenter*
2" / DN 50 Max. 1000 hl / h Max. 4000 hl
3" / DN 80 Max.
2000 hl / h Max. 8000 hl
4" / DN 100 Max. 3000 hl / h Max. 12000 hl
* At
max. fermentation rate 2.4 deg. Plato / 24 hrs.
Pressure regulators in size 1" and 11⁄2" are available in
another
version (see separate PD leaflet).
Standard operating pressure ranges up to 3,0 bar/ 43,5
psi/
300 kPa.
The pressure regulator is available with spring regulation
in
following versions:
. Fixed setting (one pressure only)
. Variable
setting
. Pneumatic actuator
The pressure regulator is produced with weld type ends,
but
can be delivered with threaded connections to suit
customer
specifications, i.e. BSP, NW, RJT, IDF, DS or Tri-Clamp.
Cleaning
The pressure regulator is easily
incorporated in the tank CIP
procedure by means of the CIP adaptor.
Before
cleaning the CIP adaptor is mounted on the pressure
regulator whereby gas
supply valve and pressure relief valve
are forced open and fully cleaned in
bypass.
Important: During the CIP procedure all functions are
blocked.
Mounting
Tank connection at side branch
is normally connected to the
pipe leading to the tank top. Optionally it is
connected with
extra support by means of bracket fixed on reverse side
of
valve block.
Benefits
. Constant tank top pressure
during filling, processing and
emptying
. Reliable setting of working
pressure
. Fully cleanable with CIP system
Operation
When the valve unit is
supplied with variable setting the relieving
pressure is adjusted to the
required working pressure
in the tank.
When tank top pressure exceeds
preset pressure (e.g. during
filling or fermentation) gas leaves the pressure
regulator
through the vent port either for atmospheric discharge or
for
collection.
If the tank top pressure decreases (e.g. during emptying)
gas
is supplied through the gas supply connection at the bottom.
It is also possible to incorporate the pressure regulator in
a
flow panel.
Maintenance
When included in CIP procedure - periodic
disassembling to
check the internal appearance and the condition of
valve
bodies and joints is necessary. Gaskets and O-rings to be
replaced
approx. every 2-3 years.
Extra Equipment
. CIP adaptor (T-piece
and 180°bend)
. Pressure gauge
. Protection valve for pressure gauge when
CIP pressure
exceeds range for pressure gauge
. Mounting brackets
