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1. Installation
1.1.Installation requirement (figure ①)
• Install the valve vertically upwards in pipework
or on a pressure vessel.
Never install in a horizontal position
or vertically downwards.
• Install the safety valve in such a way that
during venting no harm can occur to persons
or objects adjacent to the unit.
Under some circumstances it is
possible that high volumes can
discharge downwards.
• Minimum clearances must be adhered
to (see figure ①)
• There must not be any shut-off devices in the
feeding pipe. The cross section of the feeding
pipe may not be smaller than the entrance
cross section of the safety valve. The pressure
drop in the feeding pipe must not exceed 3 %
of the pressure difference between opening
overpressure and superimposed back
pressure during the greatest mass flow which
is to be carried off.
1.2 Assembly (figures ② - ⑤)
• Visually inspect the cap, thread and plug for
damage
- a damaged valve must not be fitted.
• Remove the protective cap from the thread
• Seal the valve with hemp, sealing tape
or a copper gasket.
• Screw the valve in tight using a 55 mm
wrench and avoid damaging the valve.
1.3 Commissioning (figure ⑥)
• The unit is supplied in the venting position.
• Turn the adjusting knob clockwise until it
tightens.
• The valve is now ready for service.
If the installation is taken out of service for a
long period, then the unit should be
returned to the venting position. This is
achieved by turning the adjusting knob four
turns anticlockwise until it is loose.
2. Technical Data
Working medium:
Thread connection:
Hexagon head:
Compressed air up to
180 °C
1
1
/
" or 1
1
/
" (ISO 228)
4
2
55 mm
GB
TÜV approval number:
TÜV
.
SV
.
04 - 930
α
= discharge coefficient
w
p = set pressure (bar)
Certified to Pressure Equipment Directive 97/23/EEC
Reference No. CE 0035
Set pressures available between 0,9 and 4,3 bar.
Materials:
Seal washer:
Bellow:
Discharge hood:
Housing:
Applications:
Fixed vessels for granular or powdered
materials which are filled or emptied by
means of compressed air. Tanker
vehicles for fluids, granular or powdered
materials which are filled and emptied
by means of compressed air.
3. Field maintenance
Ensure dirt does not build up around the
discharge area of the safety valve.
4. Function tests
The intervals for function checks of the safety
valves must be fixed by the operator of the
installation under consideration of the local
requirements for pressure tanks (at least once a
year according to the recommendation of the
manufacturer). The facility operator should
ensure that the function tests are carried out
regularly by an authorized person.
5. Safety requirements
• Adjustment of pressure setting and repair
operations may only be carried out by the
manufacturer.
• Under certain circumstances high volumes
can discharge downwards. For this reason no
operating components may be fitted below the
valve.
• The product must not be used in a damaged
condition and must be installed according to
regulations, with special regard to safety.
Installation must be in accordance with these
instructions. It is essential that any faults which
may influence safety be rectified immediately.
• Safety valves of the type S245S are
exclusively for the applications listed in these
installation instructions. No other application is
permissible.
3
α
.
28
.
F/K/S
.
w .
p
Fluorine caoutchouc
Silicon caoutchouc
Polyamide
Brass
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